Denmark Doctors Declare Circumcision Of Healthy Boys ‘Ethically Unacceptable’

Except within the small Muslim and orthodox Jewish communities, people in Denmark wonder why on Earth any parents would want to have their precious newborn child held down to have a part of his healthy, yet immature, penis cut off. According to a nationally representative poll from the summer of 2016, 87 percent of Danes favor a legal ban on non-therapeutic circumcision of boys under the age of 18 years. So far, politicians have been hesitant, but increasingly willing to listen.

Doctors and medical organizations in Denmark, the other Nordic countries and, with one notable exception, elsewhere in the Western world agree that circumcision of healthy boys is ethically problematic. It is considered an operation seriously and patently at odds with the Hippocratic oath (”first do no harm”) and one that is in conflict with a variety of international conventions, most notably the U.N. Declaration of the Rights of the Child.

The one Western country that is out of sync with its international peers is the United States, whose federal health authorities and national associations of pediatricians, obstetricians, family physicians and urologists endorse and perform most of these medically unnecessary operations in the country. Amputation of healthy infant foreskins constitutes the single most common surgical procedure in the United States ― a several hundred million dollars a year industry.

Internationally, several medical associations have issued policies and recommendations that contradict the popular belief in the United States that infant male circumcision is a harmless, health-promoting procedure. In fact, not one medical association in the whole world recommends circumcision of healthy boys.

In December of 2016, the Danish Medical Association published its revised policy on circumcision. Speaking on behalf of its 29,185 members, the new policy came out in an unusually clear voice. Its central passage goes like this (my unofficial translation):

Circumcision of boys without a medical indication is ethically unacceptable when the procedure is carried out without informed consent from the person undergoing the surgery. Therefore, circumcision should not be performed before the boy is 18 years old and able to decide whether this is an operation he wants.

Many Americans, who grew up in a culture whose medical authorities and mass media promote the view that an intact penis is dangerous, prone to infection, ugly and difficult to keep clean, may wonder what the penile health situation would be like in a country like Denmark, where few boys undergo circumcision. Of course, occasional intact men will encounter penile problems during their lifetime, just like people with natural teeth or appendices may develop cavities or appendicitis at some point later on. However, removing such healthy body parts on every child to prevent rare conditions in adulthood, that may be easily and effectively treated if and when they occur, is outright bad medical practice and ethics. So, why remove a healthy, functional and sensitive part of a child’s penis?

Indeed, a study published in Pediatrics in 2016 documented that only around one in 200 intact boys will develop a medical condition necessitating a circumcision before the age of 18 years. In other words, the chance is around 99.5 percent that a newborn boy can retain his valuable foreskin throughout infancy, childhood, and adolescence and enter adulthood with an intact penis. Simple information like this should urge parents to abstain from unnecessary infant surgery and let their sons decide for themselves about the size, sensitivity, functionality and appearance of their manhoods once they get old enough to understand the consequences.

In the fairytale The Emperor’s New Clothes by Danish author Hans Christian Andersen, a child too young to understand the desirability of keeping up the pretense that the emperor is wearing costly, elegant clothes when, in fact, he has nothing on, blurts out that the emperor is wearing nothing, and the cry is taken up by others. By speaking out frankly and without the usual diplomacy of such position papers, the Danish Medical Association impersonates that uncorrupted child shouting out against the falsehood, vanity and greed that has upheld the Empire of Circumcision for far too long.

In 2015, I urged U.S. parents to reconsider the moral acceptability of cutting a healthy, erogenous part off their sons’ penises. Now, at the beginning of 2017, I expand my call, and urge health professionals and payers, such as health insurers and Medicaid, to discourage circumcision of healthy boys and work to end the practice. No individual too young to provide informed consent to elective surgery should be subjected to an irreversible procedure that is painful, comes with risks, alters a natural, functional body part, has no relevant health benefits during childhood, causes pathological narrowing of the urethral opening in 5 percent -20 percent of boys, and – as stated by the Danish Medical Association – is ethically unacceptable.


Triplet babies make medical history after all braving procedure for rare skull condition

The surgeries were performed when they were just 11 weeks old.

Surgeons in New York have performed skull surgery on tripletinfants for the first time ever.

Amy Howard gave birth to Jackson, Hunter, and Kaden in October 2016. She and husband Michael are first-time parents and Ms Howard she “was terrified [of having triplets]. It took me a little bit of time to get used to the idea, to be honest.”

The babies were born on time but were soon diagnosed with craniosynostosis, a rare disorder when the bones in a baby’s skull fuse together too early.

Only one in 2,500 children are born with the disorder so for all three infants to have it is even rarer.

Dr. David Chesler, a pediatric neurosurgeon at the hospital, said in a statement that children’s brains were “put under pressure…That can be detrimental to the brain, the vision, the life of the child. It’s not imminently life-threatening, but it can cause real consequences down the road.”

The surgeries were performed in January 2017 when the babies were just 11 weeks old. According to the hospital, the required surgery had never been performed on triplets ever before.

Mr Chesler said that it was an endoscopic surgery, meaning it was done with smaller incisions rather than a more invasive open-skull surgery and it allowed them to return home within a few days.

The children are required to wear special helmets for up to 23 hours a day over six to nine months in order to shape their skulls as they grow.

Now five months old reported that the babies’ skulls are growing into a normal shape and they are hitting their developmental targets.

Mr Howard told Today that life is “a little chaotic. It’s awesome, I wouldn’t change it for the world.”

How doctors are reducing opioid use after surgery



















Opioid addiction is now a national crisis, and doctors worry that abuse too often begins when surgical patients are given prescriptions for large numbers of pain pills.  Orthopedic teams are rethinking how they manage pain, often employing a cocktail of drugs designed to reduce pain and inflammation in the crucial first days after surgery.  If patients can keep opioid use to a minimum then, the thinking goes, they’ll use fewer of the pills in total and switch to less dangerous medications faster.

While waiting in the pre-op area, Zeller took doses of Tylenol and gabapentin, an anti-seizure drug also used for nerve pain, with a sip of water.

 Just before surgery, anesthesiologist Nabil Elkassabany threaded a catheter the diameter of fishing line between nerves in Zeller’s neck with the help of ultrasound imaging.  The catheter would bathe the nerves around her shoulder with ropivacaine, a local anesthetic that would numb her arm so completely that she could stay awake during surgery if she wanted to.  (She did, but only long enough to see just how badly her muscles were torn.)

Glaser would also inject some numbing medicine directly into the surgical site.

The catheter for the regional pain block went home to Rumson, N.J. with Zeller, keeping her shoulder and arm numb for 2½ days.  She was instructed to take Tylenol, gabapentin, and ketorolac  for the first few days.

 She also got a prescription for low-dose oxycodone — an opioid — and was told she could take it if needed, but she didn’t have to.   For longer-term pain, she was to take over-the-counter drugs such as Tylenol or ibuprofen.

Two days after her surgery, Zeller’s pain was well under control.  The pump was still working and she had taken only a few of the 5 mg oxycodone pills.  Her goal matched her doctors’: to take as few opioids as possible.  “My best friend died because she became addicted to this kind of stuff,” said Zeller, 53, a home companion who was hurt during a fall in February.  “I miss her every day, so this stuff scares the living daylights out of me.”

Zeller’s care was typical of a trend sweeping surgery: “multi-modal” pain control that de-emphasizes opioids. Orthopedic surgeon Richard Rothman, founder of Philadelphia’s Rothman Institute, now also injects a combination of Marcaine, an anesthetic; ketorolac; and epinephrine, which controls bleeding, directly into the surgical site after he replaces a knee or hip. That “greatly improves” pain after surgery, he said.  Lewis Kaplan, section chief for surgical critical care at Philadelphia’s Michael J. Crescenz VA Medical Center, said intravenous Tylenol is commonly used during surgery at his hospital.  Spinal-numbing agents are also helpful in abdominal surgery.

Using small doses of several medicines that work in different ways allows some surgical patients to avoid opioids altogether. Doctors are also prescribing fewer opioid pills at a time, so patients are not left with dozens of unused pills or given the idea they should finish all those Percocets as if they were antibiotics. Doctors are resetting expectations, telling patients how  many pills most people need —  not very many — and they are asking more questions when patients want to take opioids  for weeks instead of days.

At the Philadelphia VA, all surgical patients meet with a pharmacist before picking up their medicines at the pharmacy and going home.  Richard Bright, 66, of Ardmore, talked with pharmacist Andrew Rogalski after surgery to clean and repair blood vessels needed for dialysis. Bright had prescriptions for Tylenol and oxycodone.  Rogalski told him he could break the oxycodone pills in halves or quarters. “Use only what you need, because the more you take, the more side effects you get,” he said. He pointed out that Bright could put any unused pills in a drop box near the VA Center’s police office.

Richard Bright, left, talks with Pharmacist Andrew Rogalski, right, at the VA Hospital in Philadelphia, Thursday, March 23, 2017. At the VA Hospital every patient who gets a prescription for opioids after surgery receives one-on-one time for questions and information with a pharmacist.

Doctors are also talking about pain itself differently. Many pain experts now think it was a mistake to call pain a “vital sign” and lead patients to think they could avoid it entirely. That led to greater use of addictive medicines.  Doctors now are more likely to tell patients to expect some pain, but also to expect that the worst of it will be gone within a few days.

Kaplan finds it helpful to talk to patients about how pain is affecting them, not whether they’re having it.   He has had multiple surgeries himself.  “I wake up with a pain score of six,” he said.  “This is an acceptable pain score for me.”  If it reaches eight,  he said, he takes a Tylenol.  At nine, he soaks in a hot tub.  His patients may not be that hard-core, but talking this way dramatically changes the discussion. “Your expectation will not be zero pain,” he said.

When he was a resident in the early 1990s, patients whose colons were removed would go home with 45 to 60 oxycodone pills.  Now they get about 15.

Eugene Viscusi, director of pain management at  Thomas Jefferson University, said American surgeons are “generous” with opioids compared with doctors in the rest of the world.  Elsewhere, he said, “you will not get a big bottle of opioids when you leave.”  Patients do fine with Tylenol and  anti-inflammatory drugs such as ibuprofen or Alleve.  “Their pain control is not inferior,” he said.

Like other pain specialists, he said that some drugs are better than opioids for many kinds of pain. Patients should not think they’re being  “shortchanged” if doctors don’t give them opioids. Some think over-the-counter medications are weak.  “Most patients still want the good stuff,” he said. “There’s still this pro-opioid bias.”

 Ira Kirshenbaum, chair of orthopedic surgery at Bronx Lebanon Hospital, has encountered that reaction, too. “Some of this good stuff is other stuff,” he tells patients.

His knee was replaced last year, and he took a total of three 10 mg oxycodones. “I saw firsthand. I was very well-controlled with anti-inflammatories and Tylenol,” he said, “and I was not being a hero.”

Over the last five or six years, many hospitals have begun making greater use of regional blocks such as the one Zeller got, both in surgery and after patients go home, Elkassabany said.   Ed Mariano, an anesthesiologist based at the VA in Palo Alto, Calif., says he thinks the blocks, which reduce opioid use, and allow patients to sleep better and start physical therapy faster, have proven their value and should be used more often.  Insurance coverage of home pumps, which cost about $400, is spotty, a problem he and Elkassabany say should be remedied.

“It is really important for hospitals to think much more broadly, beyond the cost of a pump,” Mariano said.  “For the cost of a readmission [for pain], you can buy a lot of pumps.”

Elkassabany said that if he had shoulder surgery, he would want the nerve block at home for four or five days.  “I’m not taking anything else,” he said.

Zeller took oxycodone during the first six days after surgery, but was doing fine on Tylenol and gabapentin after that.  Her biggest problem was boredom. She’d been ordered to keep injured arm completely still and was eager to get out and  enjoy the spring weather.


Fluorescence-guided surgery of peritoneal carcinomatosis: Safe and feasible.

Patients with peritoneal carcinomatosis of colorectal origin depend on an optimal cytoreductive surgery combined with hyperthermic intraperitoneal chemotherapy (HIPEC) as a curative treatment – and, until now, surgeons have depended on visual inspection and palpation for tumor detection. There is room for improvement in this area, say Dutch surgeons at the renowned University of Groningen, and the technique to make it happen may be molecular fluorescence-guided surgery. The advantages of this approach could be twofold – one, an improved detection of tumor tissue to attain a complete cytoreduction of metastatic lesions, and two, the prevention of overtreatment by avoiding resection of benign lesions. The results of the (small) study are certainly promising: Molecular fluorescence-guided surgery was deemed safe and feasible.

The authors enrolled seven patients with colorectal peritoneal metastases scheduled for cytoreductive surgery and HIPEC. Two days before surgery, the patients were given 4.5 mg i.v. of the near-infrared fluorescent tracer bevacizumab-IRDye800CW. The primary endpoints were safety and feasibility, i.e. “safe” if no allergic or anaphylactic reactions or serious adverse events occurred that were linked to bevacizumab-IRDye800CW, and “feasible” if bevacizumab-IRDye800CW enabled detection of fluorescence signals during surgery.

–        The safety results:

o   Two patients developed serious adverse events, but both were attributed to the surgical cytoreductive surgery and HIPEC procedure.

o   By contrast, there were no serious adverse events related to bevacizumab-IRDye800CW.

–        The feasibility results:

o   Fluorescence was seen intraoperatively in all patients.

o   In two patients, the fluorescence-guided surgery managed to spot additional tumour tissue initially missed by the surgeon.

o   29 areas were ‘non-fluorescent’, all of these were found to contain only benign tissue

o   51 areas were fluorescent, 27 of which contained tumor tissue.

Using molecular fluorescence-guided surgery with the near-infrared fluorescent tracer bevacizumab-IRDye800CW is safe and feasible, conclude the authors, and might improve patient selection as well as optimizing cytoreductive surgery. As this was a small, single-center study, the authors now call for a multicenter phase 2 trial to confirm the diagnostic accuracy and to investigate the effect of this technique on clinical decision making.

World’s First Head Transplant A Success After ninteen hour operation.

Johannesburg, South Africa — A 36-year-old man has undergone the world’s first successful head transplant. The ground-breaking operation took a team of surgeons nineteen hours to complete and has allowed the patient to be cancer-free.

Paul Horner, who was diagnosed with bone cancer five years ago, was on the verge of death when he was approved for the controversial and possibly deadly operation.

Doctor Tom Downey, who was part of the South African team who carried out the operation, told CNN he is thrilled about the results.

“It’s a massive breakthrough,” Downey said. “We’ve proved that it can be done – we can give someone a brand new body that is just as good, or better, than their previous one. The success of this operation leads to infinite possibilities.”

Surgeons at Charlotte Maxexe Johannesburg Academic Hospital inJohannesburg carried out the operation in February but waited until they could confirm it was successful before they made any public statement.Downey spoke to reporters about the complexity behind the first ever head transplant.

“This procedure is another excellent example of how medical research, technical know-how and patient-centered care can be combined in the quest to relieve human suffering.”

The operation was led by Professor Myron Danus and took place on February 10th of this year.“Our goal is for Horner to be fully functional in two years and so far we are very pleased by his rapid recovery,” said Danus. “Before the operation, Horner’s body was riddled with cancer and he had less than a month to live. We were fortunate enough to find a donor body; a 21-year-old man who has been brain dead from a serious car accident that happened in 2012. The boys body worked just fine, but his brain was not functioning whatsoever, and there was absolutely no chance of recovery.” Danus continued, “We received approval from the young man’s parents to use their sons body to do the operation. They were extremely happy their son could save a life even in the vegetated state that he was in.”

Doctors say Horner has made an 85% recovery; walking, talking and doing the normal things a healthy individual does.


The Charlotte Maxeke Johannesburg Academic Hospital, nicknamed Joburg Gen is an accredited general hospital in Parktown, Johannesburg, Gauteng, South Africa. It has 1,088 beds. The hospital’s professional and support staff exceeds 4,000 people.

Even though Horner lives in the United States, the first-of-its-kind operation had to be done overseas in a location where the medical guidelines are not as strict.

Cutting-edge theatre: world’s first virtual reality operation goes live.

Medical experts hope surgery live-streamed in VR will make healthcare fairer and boost training

 Dr Shafi Ahmed performs the operation which could be watched online by the public.
Dr Shafi Ahmed performs the operation which could be watched online by the public. 

Stretched out on a table in a large, bright operating theatre at the Royal London hospital, a patient is awaiting Shafi Ahmed’s first incision in a procedure that will remove cancerous tissue from his bowel. Around the table a team dressed in blue scrubs and face masks are gathered, exchanging the odd word, while cumbersome machines bearing bundles of wires hum gently in the background. Everyone is focused on the task in hand, getting ready to play their part. Except me.

Scrubless and without so much as a scalpel to pass to the surgeon, I am a mere spectator to this intricate event, a bystander gazing around the room in fascination while others labour at a life-changing task.

Not that the surgeons are bothered. Because although I feel like I am standing at the edge of the operating table, in reality I am sitting in my office chair.

On Thursday afternoon I witnessed the world’s first operation to be streamed live in 360-degree video, allowing medical students, trainee surgeons and curious members of the public like me to immerse themselves in the procedure in real time via the Medical Realities website. A one-minute delay was incorporated into the broadcast in case of any complications in the surgery.

A cancer surgeon at Barts Health NHS Trust, Ahmed said before the operation that he believed the approach could make healthcare more equitable, improving the training of surgeons worldwide. With internet connections becoming better, smartphones getting cheaper and only a pair of lenses and some cardboard needed to make a virtual reality headset, the costs, he said, paled in comparison to the expense of students travelling abroad to train. “It is actually quite cost-effective.”

Shot using two 360-degree cameras and a number of lenses arranged around the theatre, the operation could be viewed through the “VR in OR” app, using a virtual reality headset that can be paired with a smartphone. Those who did not have a headset could watch the feed live online.

It takes a while to get the app up and running so while I wait for the VR experience to start I watch the procedure begin via the website.

The lights are dimmed and, wielding an intimidating device, Ahmed begins to remove a hernia. “This is called a harmonic scalpel,” he says as he gets to work.

A hush descends, punctured only by beeping. Peering down I spot some odd-looking scissors I hope no one will ever use on me. Two large screens on either side of the table show views from the camera inside the patient – a device that resembles an enormous knitting needle. The team prepares to tackle the cancer. “OK let’s have a look, here we go,” says Ahmed.

Fortunately the app boots up. And I am in the room too. “There is a tumour just here,” says Ahmed. “This is what cancer looks like in reality.”

While videos showcasing surgical procedures have been around for years, Ahmed believes the new approach is more than a mere gimmick. The technology, he has argued, brings a valuable new feature to education, allowing viewers to focus not just on what the surgeon is doing, but also on what other members of the team are up to: “There will be noise, there will be the immersive factor – so that will add different layers of educational value.”

George Hanna, professor of surgical sciences at Imperial College, London was cautiously optimistic about the benefits of the approach. “If this technology allows the transfer of knowledge and skills [over] a wider range and in an easier way that would be very beneficial,” he said.

But he was quick to add that, compared with existing approaches for sharing scenes from the operating theatre, the new technology offered more of an upgrade than a revolution. “It is a good video and wide broadcast with interactive [opportunities],” he said, stressing that the operation itself was real rather than virtual.

The procedure continues. Despite my loathing of all medical TV dramas, I am hooked. Suddenly the entire theatre goes dark, except for a spotlight. Someone is making an incision. They pull out a pink, fleshy mass. “Scissors,” says someone. A bundle that I assume is the tumour is removed and dropped into a bowl. The operation has been a success.

It was not the first time Ahmed had led the way in embracing modern technology in healthcare. He co-founded the healthcare company Medical Realities, which streamed the operation in partnership with Barts Health and 360-degree video experts Mativision.

Ahmed said he believes virtual reality, augmented reality and games could all play a role in training medical students. Two years ago he streamed a live operation using the “augmented reality” system, Google Glass, allowing viewers to see the procedure from a surgeon’s point of view.

But the new 360-degree video, Ahmed said, offered a new approach, allowing users to see beyond what the surgeon was looking at. Among future developments he has envisaged, Ahmed said he was keen to add graphics to the raw footage to provide additional information during the operation, as well as taking questions from those viewing the procedure.

“[During an operation] I am teaching people, talking to them, there is communication going on – so it’ll be just an extension of that,” he said. In three to five years, haptic devices – which work off physical contact between the user and computer – could boost the experience further: “Companies are really working on various gloves or bodysuits and devices so that it can replicate touch and feel.”

Such technologies, said Ahmed, could be a boon to healthcare. But, he added, the role of patients in agreeing to take part should not be forgotten. “Ultimately, it is about the operation, about [the patient], about his cancer care and that has to be the priority for everybody.

“The fact that patients have agreed to do this before – with the Google Glass – and again, it is quite reassuring and quite humbling.”

Taking Statins May Boost Heart Surgery Outcomes.

Heart surgery patients taking statins should keep taking those cholesterol-lowering drugs, even on the day of their operation, because doing so may improve their chances of survival, a new study suggests.

“Based on our findings, we would advise patients to continue taking their statin medication all the way up to and including the day of surgery,” said study author Dr. Wei Pan.

Statins are one of the most widely prescribed drugs in the United States. One in four Americans 40 or older takes a statin, according to the U.S. Centers for Disease Control and Prevention.

In the new study, Pan’s team looked at more than 3,000 patients who underwent coronary artery bypass graft surgery. Pan is a cardiovascular anesthesiologist at the Texas Heart Institute in Houston.

The findings showed that the rate of death from all causes within 30 days was about 2 percent for those who took statins 24 hours or less before their operation.

In those who took statins 24 to 72 hours before their operation, the rate of death was nearly 3 percent. And, for those who never took statins or who took statins more than 72 hours before the surgery, the death rate was just under 4 percent, the researchers said.

The study was published online March 16 in The Annals of Thoracic Surgery.

“Patients frequently forget to take their pills on the day of surgery, or they’ve been told to stop certain medications,” Pan said in a journal news release.

“This study shows that not taking your statin for even one day before cardiac surgery may increase your risk of death after surgery,” he said.

“Statins are ubiquitous today, so this study is especially important as it highlights that a patient simply adhering to his or her already prescribed statin medication and not stopping it prematurely could be lifesaving,” Pan said.

The researchers noted that they believe this is the first study to look specifically at the timing of statin medication before surgery.

Dr. Todd Rosengart is a cardiothoracic surgeon at Baylor College of Medicine in Houston who wasn’t involved in the study.

He said in the news release that “this is an important study that clearly extends our understanding of the growing importance of statins in benefiting patients with cardiovascular disease.”

Although the study found a link between regular statin use and increased survival rates in these patients, it did not prove a cause-and-effect relationship.

Physician Invents Reconstructive Surgery For Female Genital Mutilation.

There is new hope for the hundreds of millions of women worldwide who have been subjected to genital mutilation.

A surgeon in Penn Medicine’s Center for Human Appearance has developed a reconstructive procedure that can increase sexual function and, patients’ early experiences suggest, help heal the emotional and psychological wounds associated with the mutilation. Ivona Percec, an assistant professor of Surgery in the division of Plastic Surgery, reports on her use of the technique in three patients this month in the Aesthetic Surgery Journal. She also calls for greater awareness of this human rights issue in support of women who’ve suffered these experiences across the world.

 “Plastic surgeons have a crucial role to play in this recovery, and it’s important for physicians to be informed and prepared to address the surgical and emotional needs of women who seek care for this,” Percec said. “Our procedure is simple yet effective and can help victims restore their physical and psychological sense of well-being.”

The World Health Organization (WHO) defines Female Genital Mutilation (FGM) as, “any procedure that intentionally alters or causes injury to female genital organs for non-medical reasons and with no health benefits.” An estimated 200 million women have been subjected to FGM around the world, usually between the first week of life and adolescence, and often by their caregivers. It is a cultural ritual in parts of Africa, the Middle East, and Asia to encourage female sexual fidelity. It is internationally recognized as a violation of human rights.

FGM can also have long-term consequences, including severe pain, post-traumatic stress disorder, cysts, recurrent infections, and even death.

All three women were between the ages of 30 and 33 and had recently immigrated to the United States from Sierra Leone. In each case, the women were married but had not told their husbands they had undergone FGM as children.

“These women were embarrassed that they were subjected to this procedure, in particular since relocating to the United States,” Percec said. “All of them were able to have intercourse, but without pleasure – usually with pain.”

The patients wanted to know if there were any surgical options available to help them look and feel more normal. After Percec’s research turned up little in the way of established procedures, she used her knowledge of other reconstructive techniques in hopes of restoring appearance and function.

With an average follow up of almost a year, all three patients reported improved sexual function and decreased embarrassment with their partners. All three women said they would recommend this procedure to others who have suffered FGM.

“Female genital mutilation is a violation of the basic rights of women and children,” Percec said. “As nations around the world work to eliminate this custom, plastic surgeons can play an important role in the physical, emotional, and psychological recovery of women everywhere.”

ECSPECT prospective multicentre registry for single-port laparoscopic colorectal procedures



The international multicentre registry ECSPECT (European Consensus of Single Port Expertise in Colorectal Treatment) was established to evaluate the general feasibility and safety of single-port colorectal surgery with regard to preoperative risk assessment.


Consecutive patients undergoing single-port colorectal surgery were enrolled from 11 European centres between March 2010 and March 2014. Data were analysed to assess patient-, technique- and procedure-dependent parameters. A validated sex-adjusted risk chart was developed for prediction of single-port colorectal surgery-related conversion and complications.


Some 1769 patients were enrolled, 937 with benign and 832 with malignant conditions. Procedures were completed without additional trocars in 1628 patients (92·0 per cent). Conversion to open surgery was required in 75 patients (4·2 per cent) and was related to male sex and ASA fitness grade exceeding I. Conversions were more frequent in pelvic procedures involving the rectum compared with abdominal procedures (8·1 versus 3·2 per cent; odds ratio 2·69, P < 0·001). Postoperative complications were observed in a total of 224 patients (12·7 per cent). Independent predictors of complications included male sex (P < 0·001), higher ASA grade (P = 0·006) and rectal procedures (P =0·002). The overall 30-day mortality rate was 0·5 per cent (8 of 1769 patients); three deaths (0·2 per cent; 1 blood loss, 2 leaks) were attributable to surgical causes.


The feasibility and safety, conversion and complication profile demonstrated here provides guidance for patient selection.


Laparoscopic colorectal surgery is well established as an alternative to conventional open resection, and has been shown to be associated with short-term benefits, including earlier postoperative recovery, decreased postoperative pain, reduced impairment of pulmonary function and shorter hospital stay[1, 2]. Minimally invasive laparoscopic colorectal surgery is conventionally performed using several trocar sites and a separate incision for specimen extraction (multiport laparoscopic colorectal surgery). However, each incision has the potential for bleeding, haematoma, infection and incisional hernia. Single-port colorectal surgery has been used in recent years for both benign and malignant colorectal surgery[3-5]. Nevertheless, despite the potential advantages of single-port colorectal surgery, any innovative technique requires evaluation of its feasibility and safety before gaining wider acceptance[6]. To date, the literature on single-port colorectal surgery is limited to small case series and comparative studies. Furthermore, indications and preoperative selection criteria for the single-port colorectal surgery technique remain unclear, and risk factors for conversions and complications have not been established. Therefore, a multi-institutional European study group (ECSPECT) was established to assess the risk and safety of single-port colorectal surgery.


The objective of this study was to evaluate the safety and feasibility of single-port colorectal surgery. Thus, particular efforts were made to assess risk and complications, with the further objective of developing a complication risk chart. All surgical procedures were performed primarily using single-port access with only one abdominal incision. Use of any additional trocar was registered but not considered a complication itself. Intraoperative complications were defined as unintentional events that required deviation from the standard technique.

Procedures were classified as proximal or distal abdominal surgery, with the proximal category including right and left colonic resections, and distal incorporating all those with pelvic dissection for rectal resection, abdominoperineal resection (APR) and restorative proctocolectomy.

Postoperative complications were graded according to the Dindo–Demartines–Clavien classification[7]. An anastomotic leak was defined by: radiological demonstration of contrast extravasation; diffuse peritonitis with the presence of faecal fluid at reoperation; presence of a local abscess in the vicinity of the anastomosis; or faecal discharge from the drain or wound[8]. Operative mortality was defined as death from any cause during or after surgery within 30 days if the patient was discharged from hospital, or within any interval if the patient was not discharged.

Data collection

The local institutional review board for clinical trials approved the study and all patients gave informed consent. The clinical effectiveness committees of the participating centres considered this technique to be a formal laparoscopic method. To limit bias owing to heterogeneous learning curves, one surgeon responsible for the colorectal programme in each centre had performed more than 100 single-port colorectal surgery procedures before enrolment. Procedure numbers varied in relation to the preferences for the single-port approach in each centre. Five centres predominantly included patients with left-sided colectomies, whereas two centres mainly performed right colonic resections. Lower single-port procedures such as restorative proctocolectomy, rectal resections and APR were performed in seven of the 11 centres. The hospital data and records included medical notes and operating reports for all hospital admissions, and included patient-, technique- and procedure-dependent variables. All data were blinded and monitored by independent investigators. Data were then entered into the ECSPECT registry system, based on Microsoft Access® (Microsoft, Redmond, Washington, USA), by local study assistants who were unaware of patient identities. Patients were seen at an outpatient clinic 1 month after surgery, or had telephone interviews with study assistants. As such, the 30-day follow-up was 100 per cent complete.

Statistical analysis

In this prospective observational study, potential risk factors were investigated by means of univariable analyses; Fisher’s exact test and χ2 test were used for categorical variables, and the Wilcoxon rank-sum test or Kruskal–Wallis test for continuous variables. A univariable logistic regression analysis was also performed. Multivariable logistic regression models were fitted for conversion and complication as dependent variables. A risk score based on the estimated conversion and complication probabilities was devised: low risk corresponded to an estimated probability below the median for the patient group considered; moderate risk was scored between the median and the 90 per cent quantile and high risk above the 90 per cent quantile. Statistical analyses were carried out using R software version 3.0.3 ( All statistical assessments were two-sided and a significance level of 0·050 was used.


The ECSPECT registry includes data on 2032 consecutive patients who underwent single-port colorectal surgery between March 2010 and March 2014 at 11 centres in Austria, Denmark, Germany, Italy, the Netherlands, Spain, Switzerland and the UK. The surgical procedures (single-port colorectal surgery as a proportion of the total number of colorectal procedures) were performed in Leverkusen (638 of 1070), Salzburg (360 of 613), Turin (263 of 490), Varese (173 of 265), Bristol (145 of 310), St Gallen (142 of 451), Seville (109 of 210), Vienna (81 of 132), Amsterdam (49 of 130), Copenhagen (39 of 765) and Bremerhaven (33 of 114). Reasons for non-eligibility for single-port colorectal surgery were: cT4 tumours, bulky lymph nodules attached to vital pedicles (such as superior mesenteric vein in right colectomies), emergency procedure, or non-availability of the surgeon experienced in single-port colorectal surgery. The complete data were registered in a central database. A random group of 263 patients was excluded before any analysis and used as internal validation for the risk charts, leaving 1769 complete data sets as the study group for review and analyses.

Demographic characteristics according to the single-port procedures performed are shown in Table 1. As expected, sex differences were found between proximal procedure types without rectal involvement (right and left colectomies) and distal abdominal procedures (restorative proctocolectomy, APR and rectal resections). Younger patients were more likely to undergo restorative proctocolectomy or left colonic resections (Fig. S1a, supporting information), probably a result of the higher rates of inflammatory bowel disease in this cohort. There were no differences in distribution of ASA grades for proximal versus distal procedures: 25·5 versus 22·5 per cent ASA I, 54·3 versus 59·7 per cent ASA II, 18·7 versus 16·5 per cent ASA III, and 0·4 versus 0·5 per cent ASA IV, respectively (P = 0·297). However, among patients with ASA III and IV the single-port approach was used more often for right colonic resections than for all other procedures (Fig. S1b, supporting information). In contrast to left colectomies and restorative proctocolectomies, right colectomies, rectal resections and APR were performed significantly more often for malignancies. The histopathological staging of the malignant disease is shown in Table 2.

Table 1. Demographic data for patients who underwent single-incision laparoscopic surgery, in total and according to surgical procedure
Total Right colectomy Left colectomy Rectal resection Abdominoperineal resection Restorative proctocolectomy
(n = 1769) (n = 519) (n = 868) (n = 214) (n = 48) (n = 120) P
  • Values in parentheses are percentages unless indicated otherwise;
  • *values are mean(s.d.) (range).
  • χ2 test, except
  • Kruskal–Wallis test.
Age (years)* 61·1(14·4) 64·5(15·5) 60·2(12·2) 62·7(12·9) 65·9(13·3) 48·6(18·5) < 0·001
(13–93) (13–92) (21–89) (22–93) (23–88) (17–90)
Sex ratio (F : M) 913 : 856 275 : 244 465 : 403 100 : 114 16 : 32 57 : 63 0·026
BMI (kg/m2)* 26·0(4·6) 25·9(4·8) 26·4(4·6) 25·7(4·5) 25·2(4·0) 25·4(5·1) 0·020
(15–52) (16–52) (15–47) (17–48) (16–36) (16–45)
ASA fitness grade
I 439 (24·8) 132 (25·4) 221 (25·5) 62 (29·0) 3 (6) 21 (17·5) 0·005
II 981 (55·5) 242 (46·6) 511 (58·9) 112 (52·3) 38 (79) 78 (65·0) < 0·001
III 323 (18·3) 133 (25·6) 127 (14·6) 36 (16·8) 7 (15) 20 (16·7) < 0·001
IV 8 (0·5) 6 (1·2) 0 (0) 2 (0·9) 0 (0) 0 (0) 0·011
Not assessed 18 (1·0) 6 (1·2) 9 (1·0) 2 (0·9) 0 (0) 1 (0·8)
Disease type < 0·001
Benign 937 (53·0) 170 (32·8) 644 (74·2) 29 (13·6) 2 (4) 92 (76·7)
Malignant 832 (47·0) 349 (67·2) 224 (25·8) 185 (86·4) 46 (96) 28 (23·3)
Table 2. Tumour staging in patients with malignancy
Total Right colectomy Left colectomy Rectal resection Abdominoperineal resection Restorative proctocolectomy
(n = 832) (n = 349) (n = 224) (n = 185) (n = 46) (n = 28) P
  • Values in parentheses are percentages followed by standardized residuals unless indicated otherwise;
  • *values are mean(s.d).
  • χ2 test, except
  • Kruskal–Wallis test.
Tumour category < 0·001
ypT0/pTis 54 (6·5) 34 (9·7) 6 (2·7) 8 (4·3) 2 (4) 4 (14)
(3·24) (–2·71) (–1·36) (–0·61) (1·70)
pT1 125 (15·0) 34 (9·7) 49 (21·9) 24 (13·0) 5 (11) 13 (46)
(–3·62) (3·36) (–0·89) (–0·81) (4·73)
pT2 194 (23·3) 74 (21·2) 40 (17·9) 53 (28·6) 22 (48) 5 (18)
(–1·23) (–2·26) (1·94) (4·04) (–0·70)
pT3 451 (54·2) 203 (58·2) 128 (57·1) 98 (53·0) 17 (37) 5 (18)
(1·95) (1·03) (–0·38) (–2·42) (–3·93)
pT4 8 (1·0) 4 (1·1) 1 (0·4) 2 (1·1) 0 (0) 1 (4)
(0·46) (–0·92) (0·19) (–0·69) (1·44)
Node category 0·031
pN0 409 (49·2) 172 (49·3) 129 (57·6) 71 (38·4) 20 (43) 17 (61)
(0·06) (2·95) (–3·33) (–0·79) (1·24)
pN1 160 (19·2) 68 (19·5) 45 (20·1) 30 (16·2) 13 (28) 4 (14)
(0·16) (0·38) (–1·18) (1·60) (–0·68)
pN2 83 (10·0) 43 (12·3) 17 (7·6) 22 (11·9) 1 (2) 0 (0)
(1·92) (–1·39) (0·99) (–1·82) (–1·79)
Not assessed 180 (21·6) 66 (18·9) 33 (14·7) 62 (33·5) 12 (26) 7 (25)
(–1·62) (–2·93) (4·45) (0·75) (0·44)
No. of nodes retrieved* 18·00(8·55) 16·53(9·64) 16·74(9·61) 17·58(7·34) 15·07(6·17) 8·37(15·60) 0·133
Metastasis category < 0·001
pM0 614 (73·8) 266 (76·2) 181 (80·8) 136 (73·5) 23 (50) 8 (29)
(1·35) (2·79) (–0·10) (–3·78) (–5·54)
pM1 100 (12·0) 28 (8·0) 29 (12·9) 25 (13·5) 12 (26) 6 (21)
(–3·01) (0·50) (0·71) (3·02) (1·56)
Not assessed 118 (14·2) 55 (15·8) 14 (6·3) 24 (13·0) 11 (24) 14 (50)
(1·11) (–3·98) (–0·53) (1·95) (5·53)

Surgical techniques

Disposable ports used for single-port laparoscopic procedures included: SILS-Port™ 56·5 per cent (Covidien-Medtronic, Dublin, Ireland); GelPort® 23·4 per cent (Applied Medical, Rancho Santa Margarita, California, USA); OctoPort™ 6·0 per cent (DalimSurgNET, Seoul, Korea); TriPort™ 2·2 per cent and QuadPort™ 0·1 per cent (Advanced Surgical Concepts, Wicklow, Ireland); and S.P.I.D.E.R. 0·1 per cent (TransEnterix®, Research Triangle Park, North Carolina, USA). Alternatively, reusable trocars were employed, namely: Storz X-Cone™ 7·9 per cent (Karl Storz, Tuttlingen, Germany); multiple trocars 3·6 per cent; homemade glove trocar 0·2 per cent; or KeyPort™ 0·1 per cent (Richard Wolf, Knittlingen, Germany). The incision was made routinely at the umbilical groove, except when a protective ileostomy was planned after rectal resection. Three patients (0·2 per cent) had a suprapubic incision via pre-existing scars. Fascial and skin closure was according to the preference of the surgeon. Pre-existing hernias were closed directly without the use of prophylactic mesh. In all procedures extra-long optical devices were used. Surgeons predominantly used straight working instruments (62·2 per cent) followed by curved instruments (37·8 per cent). Suspension devices were used in 160 patients (9·0 per cent) to improve exposure of the surgical field, including sutures in 143 (8·1 per cent), lifting devices in 14 (0·8 per cent) and magnets in three (0·2 per cent). The main indication for use of a suspension device was to place tension on the ileocolic segment in right hemicolectomy (19·1 per cent) or to elevate the uterus or bladder in APR (25·0 per cent) or rectal resection (6·1 per cent). No additional suspension was considered necessary in other procedures (1609, 91·0 per cent). Anastomoses were performed intracorporeally (1304, 73·7 per cent) and extracorporeally (390, 22·0 per cent); 75 patients (4·2 per cent) required no anastomosis. Extracorporeal stapling was the method of choice in right colectomy (73·0 per cent). All other procedures favoured either intracorporeal stapling (left colectomy 98·3 per cent, rectal resection 93·5 per cent, restorative proctocolectomy 92·5 per cent) or no anastomosis (note that 1 anastomosis in the APR group was performed elsewhere in the colon).

Technical results

A total of 1628 procedures (92·0 per cent) were completed without any additional trocar. One, two and three supplementary trocars were used in 121 (6·8 per cent), 17 (1·0 per cent) and three (0·2 per cent) procedures respectively. There was a trend towards use of more trocars in distal procedures with rectal resection (Fig. 1a) and in patients with higher BMI (Fig. 1b). Operating times differed significantly for right colectomy (mean(s.d.) 124(48) min), left colectomy (157(58) min), rectal resection (183(90) min), APR (305(76) min) and restorative proctocolectomy (197(108) min) (P < 0·001) (Fig. S2, supporting information). The duration of operation was prolonged in transrectal retrieval compared with that in the centre-matched cohort of patients undergoing rectal resections via an abdominal retrieval site (239·0(103·7) versus185·1(73·4) min; P = 0·014). In centres performing both types of anastomosis, operating times for right-sided colectomies with intracorporeal and extracorporeal anastomoses were not significantly different (123·0(47·4) versus 133·0(49·7) min; P = 0·057). Specimen retrieval was performed using a wound protector, a retrieval bag, or both, in all patients. Most specimens were removed via the primary incision, including APR (via the perineal incision) (Table 3). In left-sided colectomy and rectal resection, neither operating times nor complications were different between transvaginal and/or transrectal specimen retrieval routes. Predictors for prolonged operation were BMI (P = 0·005, univariable analysis), and ASA grade exceeding I, male sex, distal procedure, conversion, use of non-curved instruments, use of additional trocars and transrectal retrieval site (P < 0·001, multivariable regression analysis).

Correspondence analysis showing procedures (PC, restorative proctocolectomy; APR, abdominoperineal resection; rectal, rectal resection; left, left colectomy; right, right colectomy) in relation to need for additional trocars. b Box plots showing BMI in relation to need for additional trocars. Median value (bold line), interquartile range (box), and range (error bars) excluding outliers (symbols) are shown. P = 0·005 (Kruskal–Wallis test)
Table 3. Specimen retrieval site for single-incision laparoscopic colorectal procedures
Total Right colectomy Left colectomy Rectal resection Abdominoperineal excision Restorative proctocolectomy
(n = 1769) (n = 519) (n = 868) (n = 214) (n = 48) (n = 120)
  1. Values in parentheses are percentages.
Primary incision 1624 (91·8) 515 (99·2) 800 (92·2) 189 (88·3) 0 (0) 120 (100)
Transvaginal 44 (2·5) 3 (0·6) 39 (4·5) 2 (0·9) 0 (0) 0 (0)
Transrectal 41 (2·3) 0 (0) 28 (3·2) 13 (6·1) 0 (0) 0 (0)
Transperineal 48 (2·7) 0 (0) 0 (0) 0 (0) 48 (100) 0 (0)


Some 1694 single-port colorectal surgery procedures (95·8 per cent) were completed without conversion. The reasons for conversion were anticipated operative difficulty (pre-emptive, strategic conversions: 68, 91 per cent) or intraoperative complications and technical problems after more than 15 min (reactive conversions: 7, 9 per cent). Conversion rates and independent predictors for conversion are shown in Table 4. BMI differed significantly among patients undergoing procedures with and without conversion (mean(s.d.) 26·0(4·6) versus 28·0(4·9) kg/m2; P < 0·001).

Table 4. Converted procedures and results of multivariable logistic regression analysis to identify independent predictors of conversion
No. of conversions Odds ratio P
  1. Values in parentheses are percentages.
Right colectomy 17 (3·3)
Left colectomy 27 (3·1)
Rectal resection 19 (8·9)
Abdominoperineal resection 4 (8)
Restorative proctocolectomy 8 (6·7)
Procedure location
Proximal 44 (3·2) 1·00 (reference)
Distal 31 (8·1) 2·69 < 0·001
F 23 (2·5) 1·00 (reference)
M 52 (6·1) 2·50 < 0·001
ASA grade
I 5 (1·1) 1·00 (reference)
> I 70 (5·3) 4·89 < 0·001


Intraoperative complications were observed in 29 patients (1·6 per cent), and included bleeding (13), injury to the urinary tract (7), enterotomy (5) and splenectomy (owing to laceration, 1). In seven of these patients the operation was converted to open surgery. More patients with malignancies had intraoperative complications than those with benign underlying disease (20 versus 9 patients; odds ratio 2·53, P = 0·023). Most of the intraoperative complications were seen in right colonic resections (16 of 29). The use of additional trocars was different in patients with and without intraoperative complications (28 versus 7·6 per cent; odds ratio 4·60, P = 0·001). Interestingly, extracorporeal anastomosis was performed in nearly all patients with complicated right colonic resections (15 of 16 patients).

Postoperative complications were observed in 224 patients (12·7 per cent) (Table 5) and were unrelated to conversion to laparotomy.

Table 5. Complications and results of multivariable logistic regression analysis to identify independent predictors of complications
Postoperative complication SSI Anastomotic leak Odds ratio P
  • Values in parentheses are percentages.
  • *Dindo–Demartines–Clavien classification. SSI, surgical-site infection.
Complication grade*
I 66 (29·5)
II 40 (17·9)
III 73 (32·6)
IV 37 (16·5)
V 8 (3·6)
Procedure 0·008
Right colectomy 68 (13·1) 38 (7·3) 29 (5·6)
Left colectomy 89 (10·3) 5 (0·6) 28 (3·2)
Rectal resection 35 (16·4) 1 (0·5) 5 (2·3)
Abdominoperineal resection 9 (19) 0 (0)
Restorative proctocolectomy 23 (19·2) 2 (1·7) 1 (0·8)
Procedure location
Proximal 157 (11·3) 1·00 (reference)
Distal 67 (17·5) 1·67 0·002
F 91 (10·0) 1·00 (reference)
M 133 (15·5) 1·66 < 0·001
ASA grade
I–II 167 (11·8) 1·00 (reference)
III–IV 57 (17·2) 1·56 0·006
Disease type
Benign 104 (11·1) 1·00 (reference)
Malignant 120 (14·4) 1·35 0·038

Sex-adjusted risk charts for preoperative prediction of conversion and complication

Based on univariable risk analyses and logistic multivariable regression modelling to determine predicted probabilities for given patients’ profiles (scores), risk charts were developed for the prediction of conversion (Fig. 2) and complication. According to the median and 90 per cent quartile of the predicted probabilities for conversion, patients’ profiles were classified into low, moderate and high risk. Neither age nor malignancy had significant influence on the conversion rate. Thus, the conversion risk chart (Table S1, supporting information) allows preoperative assessment of any possible conversion according to BMI, sex, procedural involvement of the rectum (distal procedures) and ASA grade. Similarly, risk scores were established to classify patients as low, moderate or high complication risk according to a cluster analysis. In particular, male sex, ASA grade III–IV and distal procedures were found independently to result in a higher risk of complications. The complication risk chart (Table S2, supporting information) allows preoperative risk assessment of any possible intraoperative and/or postoperative complication based on the adjusted classification. These scores were validated by enrolment of an additional group of 263 patients who had single-port colorectal surgery.

Violin plots showing conversion risk in relation to a sex, b ASA grade and c procedure location. Median value (symbol), interquartile range (bold line), range (error bars) and kernel density estimate (shaded area) are shown. d Predicted probability of conversion during the single-incision laparoscopic procedure as a function of BMI


The overall 30-day mortality rate was 0·5 per cent (8 of 1769), comprising three deaths each following right colectomy and left colectomy, and one death each following rectal resection and restorative proctocolectomy. There were no deaths among patients undergoing APR. The cause of death was surgical in three patients (bleeding 1; multiple organ failure following anastomotic leak in 2 patients on postoperative days 11 and 25 respectively) and medical in five (myocardial infarction 3, pulmonary embolism 1, stroke 1).

Hospital stay

The mean(s.d.) length of hospital stay was 7·8(8·9) days for right colectomy, 8·6(5·4) days for left colectomy, 8·7(6·6) days for rectal resection, 19·0(19·6) days for APR and 10·0(6·7) days for restorative proctocolectomy. Only 54 patients were discharged within 24 h.


The broad feasibility and safety profile of the single-port colorectal surgery technique endorses its general applicability. Sex-specific, validated conversion and complication risk charts were compiled to guide patient selection, and to inform decision-making and consent.

Natural-orifice transluminal endoscopic surgery (NOTES) was developed to avoid external incisions and scars altogether, but lacks overall acceptance and experience with colorectal procedures is still sparse[8-10]. Techniques providing natural-orifice specimen extraction via transvaginal or transrectal routes remain valid options[11]. Unlike NOTES, single-port colorectal surgery is a simple modification of conventional laparoscopic surgery that does not require novel instruments or specific new operative strategies, but can be performed by surgeons who are experienced with laparoscopic techniques. Since the first colorectal applications of the single-port colorectal surgery technique were introduced in 2008[4, 5], many clinical series have been published on benign and malignant indications[3, 12-19]. Studies comparing single-port with multiport surgical techniques have demonstrated similar results in terms of complications, blood loss, number of lymph nodes harvested, tumour resection margins, complications and hospital stay[20-23]. Although single-port colorectal surgery is considered more technically demanding, only four early studies[24-27] reported longer operating times for single-port colorectal surgery compared with multiport laparoscopic colorectal procedures. Given that the registry analysis was not designed as a randomized case–control study, the mean(s.d.) operating time of 158(73) min, which includes even the most complex procedures and an array of indications, falls within the mean times reported for single-port and multiport surgery (130–175 min)[22].

Although it was reported that operations can be performed with straight instruments and without the need for special additional equipment[17, 18], interestingly, the use of curved instruments was associated with a significant decrease in operating time in the present study. Possibly the more convenient triangulation led to fewer collisions and allowed a better operative view, thus avoiding repetition of ineffective retraction and dissection. All surgeons used a variety of ports and the present data do not suggest any preference. As expected, longer operating times were associated with higher BMI, use of additional trocars and postoperative complications. The low 30-day mortality rate here is similar to published data (0·5 per cent), demonstrating that mortality after single-port colorectal surgery is mostly related to medical conditions and complications associated with the underlying disease[20-23]. Postoperative complications (in 12·7 per cent of patients) were unrelated to conversion to laparotomy and, unsurprisingly, more frequent in procedures that included pelvic dissection than right or left colectomies. The incidence of anastomotic leakage of 3·7 per cent is comparable to rates of 0·9–6·7 per cent for single-port colorectal surgery reported in smaller series[18, 26, 28]. Although the overall incidence of anastomotic leakage was very low, leakage was associated with death in two patients.

In right colectomies, intracorporeal anastomoses and extracorporeal stapling were associated with similar operating times, but the former resulted in fewer intraoperative complications (in particular bleeding). This might be explained by more traction on the bowel, and more technical difficulty in exteriorizing the specimen through the umbilicus, especially in overweight patients[29]. Buchs and colleagues[30] reported an incidence of 3·6 per cent for anastomotic leakage, and identified rectal location, higher ASA score and prolonged operating times as predictors. However, the low incidence of anastomotic dehiscence for rectal procedures (compared with right or left colonic resections) in the present study could be due to selection bias (patients and/or surgeons). Hirabayashi and co-workers[31] emphasized the importance of surgeon experience in 258 consecutive colorectal cancer procedures.

The rate of wound complications was low (2·5 per cent during short-term follow-up), which is identical to previous data for single-port colorectal surgery[20, 32]. The data are further supported by reports of substantial benefits in wound complication rates in single-port colorectal surgery compared with multiport laparoscopic colorectal procedures in patients undergoing surgery for colorectal cancer (4·3 versus 13 per cent)[28], diverticular disease[33] or complex colorectal surgery[34]. In single-port colorectal surgery the transumbilical access does not necessitate muscle transection, thus reducing the risk of bleeding and subsequent haematoma. This, combined with the wound protection offered by the device itself, may be responsible for the low rate of wound complications in the present series. Data from Japan suggest a 19 per cent lower cost for single-port colorectal surgery in comparison to multiport laparoscopic colorectal surgery using commercial single ports[32]. It is possible that the reduced length of hospital stay[17] and reduction in instrument costs for single-port colorectal surgery may potentially lead to an economic advantage, but this was not addressed in the present investigation. This registry study is limited by its non-randomized design and short follow-up period of 30 days after surgery. The assessment of late complications and overall (oncological) outcomes was not an objective of this study.

The large number of surgeons and participating institutions emphasizes the value of this registry study in representing a real-life scenario and reducing selection bias. Increasing patient numbers and long follow-up are current objectives of the ECSPECT registry to provide continued robust evaluation of single-port colorectal surgery. Finally, only well conducted randomized trials will allow a definite conclusion regarding the technical superiority of single-port colorectal surgery over conventional laparoscopy.

ECSPECT single‐port laparoscopic colorectal procedures.

Laparoscopic colorectal surgery is well established as an alternative to conventional open resection, leading to earlier postoperative recovery, decreased postoperative pain and a shorter hospital stay. Conventionally, invasive laparoscopic colorectal surgery is performed as a multiport surgery, using several trocar sites and a separate incision for specimen extraction; but this has the disadvantage of each incision being a potential site of bleeding, hematoma, infection and incisional hernia, explain the authors of the present pan-European study. Single-port colorectal surgery would offer significant advantages in this respect, but the data on this approach is still insufficient. The multi-institutional European study group (ECSPECT) was established to assess the general feasibility and safety of single-port colorectal surgery, and to provide guidance for patient selection. The study included 1,769 patients (937 with benign conditions, 832 with malignant conditions).

4.2 % of patients required conversion to open surgery; conversions were more than twice as frequent in pelvic procedures involving the rectum than in abdominal procedures (8.1 versus 3.2 %; odds ratio 2.69, P < 0.001). Postoperative complications occurred in 12.7 % of patients, and independent predictors of complications included male sex (P < 0.001), higher ASA grade (P = 0.006) and rectal procedures (P = 0.002). The overall 30-day mortality rate was 0.5 %.

This study shows the broad feasibility and safety profile of the single-port colorectal surgery technique and therefore endorses its general applicability, conclude the authors. Patient selection should be guided by the sex of the patient and his or her risks for conversion and complication.