Laparoscopic single-port colectomy for sigmoid cancer. Tech Coloproctol. 2010;14:253-255. [PMID: 19953288 DOI: 10.1007/s10151-009-0545-8]

Clinical outcomes and inflammatory response to single-incision laparoscopic (SIL) colorectal surgery: a single-blinded randomized controlled pilot study

AIM

Single-incision laparoscopic (SIL) surgery is expanding, but its benefits, efficacy and safety compared with conventional laparoscopic (CL) surgery remain unclear. This pilot study examined clinical outcomes and biochemical markers of inflammation for colorectal resections by SIL and CL in a randomized controlled pilot trial.

METHOD

Fifty patients undergoing elective colorectal resection were randomized to either SIL or CL. Primary outcomes were operating time and length of stay (LoS); secondary outcomes included combined length of scars, pain scores, complications, Quality of Life EQ5D-VAS and the inflammatory markers interleukin-6 (IL-6), IL-8 and C-reactive protein (CRP) at baseline, 2, 6, 24 and 72 h.

RESULTS

There was no difference in age, gender, body mass index, indications and site of surgery, American Society of Anesthesiologists grade or incidence of previous surgery between the groups. Except for one conversion from SIL to open surgery, surgery was completed as intended. No difference between SIL and CL was found for operating time [median 130 (72-220) vs 130 (90-317) min, respectively, P = 0.528], LoS [median 4 (3-8) vs 4 (2-19)days, P = 0.888] and time to first flatus [2 (1-4) vs 2 (1-5) days, P = 0.374]. The combined length of scars was significantly shorter for SIL [4 (2-18) vs 7 (5-8) cm, P < 0.001]; in each group, four postoperative complications occurred (16%). Postoperative pain scores were similar [mean 7.67 (interquartile range 4) vs 7.25 (interquartile range 3.75), P = 0.835] to day 3. EQ5D-VAS was no different for both groups at discharge [72.5 (40-90) vs 70 (30-100), P = 0.673] but slightly higher for CL at 3 months [79 (45-100) vs 90 (50-100), P = 0.033].The IL-6, IL-8 and CRP levels between both groups showed similar peaks and no significant differences.

CONCLUSION

SIL colorectal surgery by experienced laparoscopic surgeons appears to be safe and equivalent to CL, with no discernible difference in its effect on the physiological response to surgical trauma.

Single-Incision Multiport/Single Port Laparoscopic Abdominal Surgery (SILAP): A Prospective Multicenter Observational Quality Study

Background

Increasing experience with minimally invasive surgery and the development of new instruments has resulted in a tendency toward reducing the number of abdominal skin incisions. Retrospective and randomized prospective studies could show the feasibility of single-incision surgery without any increased risk to the patient. However, large prospective multicenter observational datasets do not currently exist.

Objective

This prospective multicenter observational quality study will provide a relevant dataset reflecting the feasibility and safety of single-incision surgery. This study focuses on external validity, clinical relevance, and the patients’ perspective. Accordingly, the single-incision multiport/single port laparoscopic abdominal surgery (SILAP) study will supplement the existing evidence, which does not currently allow evidence-based surgical decision making.

Methods

The SILAP study is an international prospective multicenter observational quality study. Mortality, morbidity, complications during surgery, complications postoperatively, patient characteristics, and technical aspects will be monitored. We expect more than 100 surgical centers to participate with 5000 patients with abdominal single-incision surgery during the study period.

Results

Funding was obtained in 2012. Enrollment began on January 01, 2013, and will be completed on December 31, 2018. As of January 2016, 2119 patients have been included, 106 German centers are registered, and 27 centers are very active (>5 patients per year).

Conclusions

This prospective multicenter observational quality study will provide a relevant dataset reflecting the feasibility and safety of single-incision surgery. An international enlargement and recruitment of centers outside of Germany is meaningful.

Trial Registration

German Clinical Trials Register: DRKS00004594; https://drks-neu.uniklinik-freiburg.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00004594 (Archived by WebCite at http://www.webcitation.org/6jK6ZVyUs)

Effect of BMI on Short-Term Outcomes with Robotic-Assisted Laparoscopic Surgery: a Case-Matched Study

BACKGROUND

Many benefits of minimally invasive surgery are lost in the obese, but robotic-assisted laparoscopic surgery (RALS) may offer advantages in this population. Our goal was to compare outcomes for RALS in obese and non-obese patients.

METHODS

A prospective database was reviewed for colorectal resections using RALS. Patients were stratified into obese (BMI > 30 kg/m(2)) and non-obese cohorts (BMI < 30 kg/m(2)), then case-matched for comparability. The main outcome measures were operative time, conversion rate, length of stay and complication, readmission, and reoperation rates between groups.

RESULTS

Forty-five patients were evaluated in each cohort. The BMI was significantly different (p < 0.01). All other demographics were well matched. There were no significant differences in operative time (p = 0.86), blood loss (p = 0.38), intraoperative complications (p = 0.54), or conversion rates (p = 0.91) across cohorts. Length of stay was comparable between groups (p = 0.45). Postoperatively, the complication (p = 0.87), readmission (p = 1.00), and reoperation rates (p = 0.95) were similar. There were no mortalities. For malignant cases (37.8 %), the lymph node yield (p = 0.48) and positive margins (p = 1.00) were similar and acceptable in both cohorts.

CONCLUSIONS

In our matched RALS series, perioperative and postoperative outcomes were similar between obese and non-obese patients undergoing colorectal surgery. RALS is a feasible option in the surgical setting of the obese patient. Further controlled studies are warranted to explore the full benefits.

Review of 500 single incision laparoscopic colorectal surgery cases - Lessons learned

Single incision laparoscopic surgery (SILS) is a minimally invasive platform with specific benefits over traditional multiport laparoscopic surgery. The safety and feasibility of SILS has been proven, and the applications continue to grow with experience. After 500 cases at a high-volume, single-institution, we were able to standardize instrumentation and operative steps, as well as develop adaptations in technique to help overcome technical and ergonomic challenges. These technical adaptations have allowed the successful application of SILS to technically difficult patient populations, such as pelvic cases, inflammatory bowel disease cases, and high body mass index patients. This review is a frame of reference for the application and wider integration of the single incision laparoscopic platform in colorectal surgery.

Single-Incision Laparoscopic Right Hemi-Colectomy: a Systematic Review

As surgeons became more adept with laparoscopic colon surgery, other less invasive procedures, such as single-incision laparoscopic right hemi-colectomy (SIL-RH), have been applied. The objective of this study was to evaluate the safety of SIL-RH as well as its intraoperative and postoperative outcomes for right-sided colon diseases. A detailed search in PubMed for citations that included SIL-RH from 2000 to 2014 revealed 21 studies fulfilling the criteria of the present review. A total of 684 patients were analyzed. Of the patients, 50.2 % were men. Mean patient age was 64.8 years. Of the patients, 36.1 % had already undergone an abdominal operation before the performance of SIL-RH, while 69 % of the patients underwent SIL-RH for colon cancer. Relatively low rates of overall morbidity (15 %) and mortality (0.75 %) were reported in the included studies. Mean length of postoperative hospital stay (LOS) was 5.5 days. Bowel motility return had a mean value of 2.8 days. Mean number of harvested lymph nodes (LN) was 19.2 LN. All resection margins were tumor-free. SIL-RH was a safe alternative to multiport laparoscopic right hemi-colectomy (ML-RH) in terms of morbidity and mortality, postoperative gastrointestinal function recovery, LOS, as well as oncological radicalness.

Review of single incision laparoscopic surgery in colorectal surgery

As surgical techniques continue to move towards less invasive techniques, single incision laparoscopic surgery (SILS), a hybrid between traditional multiport laparoscopy and natural orifice transluminal endoscopic surgery, was introduced to further the enhanced outcomes of multiport laparoscopy. The safety and feasibility of SILS for both benign and malignant colorectal disease has been proven. SILS provides the potential for improved cosmesis, postoperative pain, recovery time, and quality of life at the drawback of higher technical skill required. In this article, we review the history, describe the available technology and techniques, and evaluate the benefits and limitations of SILS for colorectal surgery in the published literature.

Outcomes for single-incision laparoscopic colectomy surgery in obese patients: a case-matched study

BACKGROUND

Single-incision laparoscopic surgery (SILS) is safe and feasible for benign and malignant colorectal diseases. SILS offers several patient-related benefits over multiport laparoscopy. However, its use in obese patients has been limited from concerns of technical difficulty, oncologic compromise, and higher complication and conversion rates. Our objective was to evaluate the feasibility and efficacy of SILS for colectomy in obese patients.

METHODS

Review of a prospective database identified patients undergoing elective colectomy using SILS from 2009 to 2014. They were stratified into obese (BMI ≥ 30 kg/m(2)) and non-obese cohorts (BMI < 30 kg/m(2)) and then matched on patient characteristics, diagnosis, and operative procedure. Demographic and perioperative outcome data were evaluated. The primary outcome measures were operative time, length of stay (LOS), and conversion, complication, and readmission rates for each cohort.

RESULTS

A total of 160 patients were evaluated-80 in each cohort. Patients were well matched in demographics, diagnosis, and procedure variables. The obese cohort had significantly higher BMI (p < 0.001) and ASA scores (p = 0.035). Operative time (176.9 ± 64.0 vs. 144.4 ± 47.2 min, p < 0.001) and estimated blood loss (89.0 ± 139.5 vs. 51.6 ± 38.0 ml, p < 0.001) were significantly higher in the obese. There were no significant differences in conversion rates (p = 0.682), final incision length (p = 0.088), LOS (p = 0.332), postoperative complications (p = 0.430), or readmissions (p = 1.000) in the obese versus non-obese. Further, in malignant cases, lymph nodes harvested (p = 0.757) and negative distal margins (p = 1.000) were comparable across cohorts.

CONCLUSIONS

Single-incision laparoscopic colectomy in obese patients had significantly longer operative times, but comparable conversion rates, oncologic outcomes, lengths of stay, complication, and readmission rates as the non-obese cohorts. In the obese, where higher morbidity rates are typically associated with surgical outcomes, SILS may be the ideal platform to optimize outcomes in colorectal surgery. With additional operative time, the obese can realize the same clinical and quality benefits of minimally invasive surgery as the non-obese.

Single incision laparoscopic colectomy for colorectal cancer: comparison with conventional laparoscopic colectomy

Purpose

The aim of this retrospective study was to evaluate the feasibility of single incision laparoscopic surgery (SILS), and to compare the short-term surgical outcomes with those of conventional laparoscopic surgery for colorectal cancer.

Methods

Forty-four patients who underwent SILS were compared with 263 patients who underwent conventional laparoscopic surgery for colorectal adenocarcinoma between November 2011 and September 2012.

Results

In the SILS group, eleven cases (25.0%) of right hemicolectomy, 15 (34.1%) anterior resections, and 18 (40.9%) low anterior resections were performed. Additional ports were required in 10 rectal patients during SILS operation. In the 32 patients with rectosigmoid and rectal cancer in the SILS group, patients with mid and lower rectal cancers had a tendency to require a longer operation time (168.2 minutes vs. 223.8 minutes, P = 0.002), additional ports or multiport conversion (P = 0.007), than those with rectosigmoid and upper rectal cancer. Both SILS and conventional groups had similar perioperative outcomes. Operation time was longer in the SILS group than in the conventional laparoscopic surgery group (185.0 minutes vs. 139.2 minutes, P < 0.001). More diverting stoma were performed in the SILS group (64.7% vs. 24.2%, P = 0.011). Multivariate analysis showed that tumor location in the rectum (95% confidence interval [CI], 1.858-10.560; P = 0.001), SILS (95% CI, 3.450-20.233; P < 0.001), diverting stoma (95% CI, 1.606-9.288; P = 0.003), and transfusion (95% CI, 1.092-7.854; P = 0.033) were independent risk factors for long operation time (>180 minutes).

Conclusion

SILS is a feasible, not inferior treatment option for colorectal cancer, and appears to have similar results as standard conventional multiport laparoscopic colectomy, despite the longer operative time.

The application of McBurney's single-incision laparoscopic colectomy alleviates the response of patients to postoperative wound pain

BACKGROUND

Single-incision laparoscopic colectomy (SILC) is one of several promising operation choices. Our previous study demonstrated that SILC with a self-made glove-port system both improves the feasibility of SILC and decreases the cost expense of surgery. Because the incision site for SILC could be made at either the umbilicus or McBurney's point, we are interested in whether the incision site affects the outcomes of patients, which is a less explored topic. The purpose of this study is not only to show the results of SILC with a self-made glove-port system for supporting its feasibility, but also to compare the short-term surgical outcomes between SILC with the incision made at the umbilicus and at McBurney's point.

SUBJECTS AND METHODS

We collected and reviewed the medical records of patients who received SILC with a self-made glove-port system for tumors in the left side of the colon from August 2009 to March 2011. All operations were performed by a single surgeon. Comparisons of the demographic characteristics, perioperative data, and clinical outcomes between umbilical and McBurney's SILCs were performed. Postoperative pain was assessed by a visual analog scale and opiate demand.

RESULTS

In total, 61 patients were enrolled in this retrospective study. Five of 48 (10.4%) tumors in the umbilical SILC group and 5 of 13 (38.5%) tumors in the McBurney's SILC group were located below the peritoneal reflection. The tumor location was significantly different between these two groups (P=.015). Patients in the umbilical SILC group had significantly higher frequency of opiate demand than those in the McBurney's SILC group (0.4±0.7 versus 1.4±1.8, respectively; P=.002).

CONCLUSIONS

This study further provides evidence for supporting the safety and feasibility of SILC in treating colorectal diseases. More important is that McBurney's SILC not only alleviates the patient response to wound pain, but also provides the same site for a diverting enterostomy to avoid creating an additional wound.

Single-incision laparoscopic colorectal surgery for cancer: State of art

A number of clinical trials have demonstrated that the laparoscopic approach for colorectal cancer resection provides the same oncologic results as open surgery along with all clinical benefits of minimally invasive surgery. During the last years, a great effort has been made to research for minimizing parietal trauma, yet for cosmetic reasons and in order to further reduce surgery-related pain and morbidity. New techniques, such as natural orifice transluminal endoscopic surgery (NOTES) and single-incision laparoscopy (SIL) have been developed in order to reach the goal of “scarless” surgery. Although NOTES may seem not fully suitable or safe for advanced procedures, such as colectomies, SIL is currently regarded as the next major advance in the progress of minimally invasive surgical approaches to colorectal disease that is more feasible in generalized use. The small incision through the umbilicus allows surgeons to use familiar standard laparoscopic instruments and thus, perform even complex procedures which require extraction of large surgical specimens or intestinal anastomosis. The cosmetic result from SIL is also better because the only incision is made through the umbilicus which can hide the wound effectively after operation. However, SIL raises a number of specific new challenges compared with the laparoscopic conventional approach. A reduced capacity for triangulation, the repeated conflicts between the shafts of the instruments and the difficulties to achieve a correct exposure of the operative field are the most claimed issues. The use therefore of this new approach for complex colorectal procedures might understandingly be viewed as difficult to implement, especially for oncologic cases.

Incision-less reversal of Hartmann's procedure

After taking down the colostomy in a patient who has previously undergone a Hartmann's operation, it is possible to restore bowel continuity using the single-port technique via the colostomy site itself. This study presents our experience of this approach using the glove port and standard laparoscopic instrumentation. Between October 2010 and October 2013, 14 patients [median age 62 years (range 42-83 years); median body mass index 25.2 kg/m(2) (range 22.7-34.9) kg/m(2)] underwent attempted single-port (via colostomy site) reversal of Hartmann's. All but one patient had had a laparotomy for their primary surgery. The glove port was used with a camera and two working ports. Additional remote access was needed in 3 (21 %) patients [1 × 5 mm port (two patients); 2 × 5-mm ports ; 2 × 5-mm ports and Pfannenstiel]. Median operative time was 150 min (range 75-270 min). Mortality was nil. One patient required reoperation and a stoma. Median hospital stay was 5 days (range 2-36 days). Glove port reversal of Hartmann's is technically possible, though challenging if extensive adhesions are present. Outcomes are variable. Further studies will be needed to assess whether this is a safe technique.

Feasibility of single-incision laparoscopic surgery for appendicitis in abnormal anatomical locations: A single surgeon's initial experience

BACKGROUND

Single-incision laparoscopic surgery is considered as a more technically demanding procedure than the standard laparoscopic surgery. Based on an initial and early experience, single-incision laparoscopic appendectomy (LA) was found to be technically advantageous for dealing with appendicitis in unusual anatomical locations. This study aims to highlight the technical advantages of single-incision laparoscopic surgery in dealing with the abnormally located appendixes and furthermore report a case of acute appendicitis occurring in a sub-gastric position, which is probably the first such case to be reported in English literature.

MATERIALS AND METHODS

A retrospective analysis of the first 10 cases of single-incision LA which were performed by a single surgeon is presented here.

RESULTS

There were seven females and three males. The mean age of the patients was 30.6 (range 18-52) years, mean BMI was 22.7 (range 17-28) kg/m(2) and the mean operative time was 85.5 (range 45-150) min. The mean postoperative stay was 3.6 (range 1-7) days. The commonest position of the appendix was retro-caecal (50%) followed by pelvic (30%). In three cases the appendix was found to be in abnormal locations namely sub-hepatic, sub-gastric and deep pelvic or para-vesical or para-rectal. All these cases could be managed with this technique without any conversions.

CONCLUSION

Single-incision laparoscopic surgery appears to be a feasible and safe technique for dealing with appendicitis in rare anatomical locations. Appendectomy may be a suitable procedure for the initial training in single-incision laparoscopic surgery.

Single-incision laparoscopic colectomy: training the next generation

BACKGROUND

Single-incision laparoscopic colectomy (SILC) is touted to be an improved approach for minimally invasive surgery although no data currently exists regarding the acquisition of skills for the safe performance of this technique. The authors report their early experience with proctoring of surgical residents in SILC by experienced colorectal surgeons.

METHODS

Data regarding patient demographics, operative data, and short-term outcomes were prospectively collected at two surgical training hospitals. Residents and staff independently rated individual components of this technique to compare them with learning standard multiport colectomy (MP).

RESULTS

A total of 31 SILC cases (15 men; mean age 53 years) were managed. The average BMI was 26.5 kg/m(2) (range 16-39 kg/m(2)). The surgical indications included cancer (n = 13), polyps (n = 8), diverticular disease (n = 4), Crohn's disease (n = 2), familial adenomatous polyposis (n = 2), volvulus (n = 1), and rectal prolapse (n = 1). The average operative time was 164 ± 86 min, and the mean blood loss was 80 ± 83 mL. The mean incision length was 4.1 ± 1.1 cm. One case required additional trocar placement (stoma creation), and three cases required conversion to open procedure because of failure to progress, difficult colorectal anastomosis, or poor visualization. The median hospital stay was 5.7 ± 1.3 days. The 30-day morbidity included minor wound infections (9.7 %), ileus (6.5 %), blood transfusion (3.2 %), and intraabdominal abscess (3.2 %). No deaths occurred. Residents rated vascular pedicle isolation, mobilization, critical structure exposure, instrument conflict/handling, and ergonomics as significantly more difficult with SILC.

CONCLUSIONS

Senior-level residents can safely perform SILC under appropriate experienced supervision. The required advanced skills reflect complex laparoscopic training occurring during residency. Opportunities exist for better preparation and training of surgical residents to perform this complex surgery independently and safely at completion of residency.

Single-port laparoscopic colectomy

Single-port laparoscopy (SPL) for colorectal surgery was first described for a right hemicolectomy in 2008. Since then, technology and experience have advanced, and SPL is now reported for a variety of colorectal procedures. Multiple case series and reports have demonstrated the adequate safety of SPL, but there are few reports of a measurable benefit of the technique. SPL is a difficult procedure to learn, it may have relatively high costs, and it is more difficult to perform as well as more physically and mentally taxing on the surgeon. Despite the difficulty and potentially increased cost, SPL suits colorectal patients well as they commonly have a stoma or extraction site adequate in size for a single port. There are cosmetic advantages to this technique, but they apply to a small subset of patients requiring colorectal surgery. There are many tips to incorporate SPL into practice successfully, but the procedure requires patience and experience. As surgeons become more facile with this technique, a group that derives a clear benefit beyond cosmesis will arise, likely a subset of reoperative patients requiring fecal diversion. The accompanying video demonstrates, step by step, the authors' technique of total proctocolectomy and ileo-anal pouch using a single-port device.

Minimally invasive approaches for the treatment of inflammatory bowel disease

Despite significant improvements in medical management of inflammatory bowel disease, many of these patients still require surgery at some point in the course of their disease. Their young age and poor general conditions, worsened by the aggressive medical treatments, make minimally invasive approaches particularly enticing to this patient population. However, the typical inflammatory changes that characterize these diseases have hindered wide diffusion of laparoscopy in this setting, currently mostly pursued in high-volume referral centers, despite accumulating evidences in the literature supporting the benefits of minimally invasive surgery. The largest body of evidence currently available for terminal ileal Crohn’s disease shows improved short term outcomes after laparoscopic surgery, with prolonged operative times. For Crohn’s colitis, high quality evidence supporting laparoscopic surgery is lacking. Encouraging preliminary results have been obtained with the adoption of laparoscopic restorative total proctocolectomy for the treatment of ulcerative colitis. A consensus about patients’ selection and the need for staging has not been reached yet. Despite the lack of conclusive evidence, a wave of enthusiasm is pushing towards less invasive strategies, to further minimize surgical trauma, with single incision laparoscopic surgery being the most realistic future development.

Systematic review of single-incision laparoscopic colonic surgery

BACKGROUND

Randomized clinical trials (RCTs) have shown multiport laparoscopic surgery to be safe compared with open surgery in elective colonic disease. Single-incision laparoscopic surgery (SILS) represents the latest advance in laparoscopic surgery. The aim of this systematic review was to establish the safety and complication profile of colonic SILS.

METHODS

The search was performed in October 2011 using PubMed, MEDLINE, Embase and the Cochrane Central Register of Controlled Trials. Search terms were 'colorectal', 'colon', 'colectomy', 'rectal' and single incision/port/trocar/site/scar. Only pure single-incision laparoscopic colonic surgery for benign and malignant colonic disease was included. Primary outcomes were the early postoperative complication profiles of colonic SILS. Secondary outcomes were duration of operation, lymph node yields, conversion rate and duration of hospital stay.

RESULTS

Colonic SILS data were compared with data from a Cochrane review on the short-term outcomes of laparoscopic colonic surgery and four main RCTs on laparoscopic colonic surgery. Median operating times and time to first bowel motion for colonic SILS were comparable with those for laparoscopic colonic surgery. The median lymph node retrieval for malignant disease achieved with SILS was acceptable. Evidence for a reduction in postoperative pain with SILS was conflicting. There was no significant reduction in length of hospital stay with SILS. Most patients selected for colonic SILS had a low body mass index, non-bulky tumours and were operated on by experienced laparoscopic surgeons. There was significant heterogeneity in study group characteristics, indications for surgery, research methodology, operative techniques and follow-up time.

CONCLUSION

Colonic SILS should be restricted to highly selected patients; operations should be performed by experienced laparoscopic surgeons, with critical appraisal of clinical outcomes.

Single-incision laparoscopy for colorectal resection: a systematic review and meta-analysis of more than a thousand procedures

AIM

Single-incision laparoscopy for colorectal surgery is of growing importance. The experience of colorectal resection through single-incision laparoscopic surgery was assessed, including the patient outcomes.

METHOD

A meta-analysis was performed of studies comparing single-incision laparoscopic with multiport laparoscopy. Endpoints included conversion to laparotomy, operation time, postoperative morbidity, length of skin incision and length of hospital stay. The MEDLINE database was searched and only comparative studies were included in the meta-analysis. Data were retrieved from full-text manuscripts. Meta-analysis was performed according to the Mantel-Haenszel method for random effects.

RESULTS

From October 2008 to December 2011, 1026 colorectal resections including 921 colonic and 105 rectal procedures using single-incision laparoscopic surgery were reported in 64 studies. Meta-analysis of the 15 comparative studies, including a total of 1075 procedures (494 single-incision and 581 multiport laparoscopies), showed no difference in conversion to open laparotomy [odds ratio (OR) 0.58 (0.24, 1.38); P=0.22], morbidity [OR 0.84 (0.61, 1.15); P=0.27] or operation time [weighted mean difference (WMD) -0.27 (-6.50, 5.95); P=0.93], but a significantly shorter total skin incision [WMD -0.52 (-0.79, -0.25); P<0.001] and a significantly shorter postoperative length of stay [WMD -0.75 (-1.30, -0.20); P=0.008] after single-incision laparoscopic surgery compared with a multiport laparoscopic approach.

CONCLUSION

Although only 15 nonrandomized comparative studies of varying methodology have been reported, this systematic review and meta-analysis of more than 1000 colorectal procedures suggest that single-incision laparoscopic colorectal surgery is feasible and safe.

Pearls and pitfalls in SILS colectomy

Single-incision laparoscopic colectomy has developed into a viable option for the treatment of benign and malignant colorectal diseases with the innovation of new access devices, instrumentation, and surgical techniques. Although cosmesis has been highly touted as the most apparent advantage of the approach, the single-incision platform also affords the potential for enhanced recovery, early hospital discharge, and reduction in postoperative wound complications. Despite increasing evidence demonstrating the safety and efficacy of single-incision laparoscopic colectomy, wide-ranging adaptation has been tempered in part as a result of the technical demands of the approach. We aim to describe our surgical pearls for overcoming various pitfalls and technical challenges experienced during single-incision laparoscopic colectomy to facilitate successful application of this technique.

Single-incision laparoscopic surgeries for colorectal diseases: early experiences of a novel surgical method

Objectives. This paper aims to analyze the feasibility and safety of single-incision laparoscopic colectomy (SILC) and its potential benefits. Methods. Systematic review was performed for the years 1983-August 2011 to retrieve all relevant literature. A total of 21 studies with 477 patients undergoing SILC were selected. Results. Range of operative times and estimated blood losses were 75-229 min and 0-100 mL, respectively. Overall conversion rate was 5.9% (28/477) and an additional laparoscopic port was used in 4.9% (16/329) cases. Range of lymph node number for malignant cases was 12-24.6 and surgical margins were all negative. Overall mortality and morbidity rate was 0.4% (2/477) and 11.7% (43/368), respectively. The length of hospital stay (LOS) varied across reports (2.7-9.2 days). Among 6 case-matched studies, one showed less blood loss in SILC as compared to LAC and 2 showed shorter LOS after SILC versus HALC or LAC/HALC groups. In addition, one study reported maximum pain score on postoperative days 1 and 2 was lower in SILS compared to LAC and HALC. Conclusions. SILC procedure is feasible and safe when performed by surgeons highly skilled in laparoscopy. In spite of technical difficulties, there may be potential benefits associated with SILC over LAC/HALC.

Feasibility and safety of single-incision laparoscopic colectomy: a systematic review

OBJECTIVE

The aim of this review was to evaluate the feasibility, safety, and potential benefits of single-incision laparoscopic colectomy (SILC).

METHODS

We conducted a comprehensive review for the years 1983 to March 2011 to retrieve all relevant articles.

RESULTS

A total of 23 studies with 378 patients undergoing SILC were reviewed. All studies except 2 used a commercially available single-port device. Range of body mass index was 20.9 to 30.0 kg/m². Ranges of operative times and estimated blood losses were 83 to 225 minutes and 0 to 115 mL, respectively. Of 378 cases, a total of 6 cases (1.6%) were converted to open, 6 (1.6%) to hand-assisted laparoscopic (HALC), and 14 (4.0%) to conventional (multiport) laparoscopic colectomy (MLC) (overall conversion rate, 6.9%). An additional laparoscopic port was used in 4.9% (12/247) cases. Range of harvested lymph nodes number for malignant cases was 13.5 to 27 and surgical margins were negative in all cases. Overall mortality and morbidity rates were 0.5% (2/378) and 12.9% (45/349), respectively. The length of hospital stay (LOS) varied across reports (1.9-9.8 days). Among 4 case-matched studies, 2 showed shorter LOS after SILC than after HALC (2.7 vs 3.3 days) or after MLC/HALC (3.4 vs 4.6/4.9 days). Furthermore, one of these studies reported that maximum pain score on postoperative days 1 and 2 was significantly lower in SILS than in MLC and HALC.

CONCLUSIONS

In early series of highly selected patients, SILC appears to be feasible and safe when performed by surgeons who are highly skilled in laparoscopy. Despite technical difficulties, there may be potential benefits associated with SILC over MLC/HALC but it is yet to be proven objectively.

Transumbilical laparoendoscopic single-site total mesorectal excision for rectal carcinoma

In recent years, multiple studies have proved laparoscopic total mesorectal excision (TME) to be as safe and as effective in rectal cancer treatment as open surgery, with the undeniable benefit of perioperative trauma reduction. Decreasing the number of incisions and performing single-port surgery could have further reduced the trauma. A new access device, QuadPort™ Olympus, enables operations from just one small transumbilical incision, leaving a barely visible scar afterwards. This is one of the first reports of transumbilical laparoendoscopic single-site TME for rectal carcinoma. A 73-year-old woman presented with tubulo-villous adenoma with high-grade dysplasia and focal adenocarcinoma in situ at 7 cm from the anal verge. She had TME performed via a QuadPort™, Olympus, in line with principles of laparoscopic TME. The operating time was 80 min. There were no adverse events during the procedure. Total blood loss was less than 100 ml. There were no complications in the postoperative period. The patient required only non-opioid analgesia, during the first 2 days. The patient was discharged on the 3(rd) postoperative day with standard recommendations. Feasibility and safety of the proposed transumbilical laparoendoscopic single site TME for rectal carcinoma was proved. It is a technically demanding procedure, requiring appropriate laparoscopic skills. The QuadPort provided good oncological protection of the wound and easy specimen extraction. Reduced operative trauma resulted in no opioid administration in the perioperative period. Hospital stay was comparable with laparoscopic TME but the cosmetic effect was much better.

Comparative study of safety and outcomes of single-port access versus conventional laparoscopic colorectal surgery

BACKGROUND

Single-port access (SPA) offers cosmetic advantages in addition to the well-recognised benefits of conventional multi-port laparoscopic (CL) surgery, and can be carried out using standard straight instruments. We report the outcomes of our early experience with SPA colorectal resections in comparison with CL surgery.

METHODS

We compared the following data, patient characteristics, operating time, morbidity, operative mortality, length of hospital stay and tumour variables, of patients who underwent SPA right, left, sigmoid and total colon resections, as well as high anterior resections and panproctocolectomies, with that of patients who underwent equivalent conventional laparoscopic (CL) operations. The 40 SPA and 78 CL patients studied underwent surgery between February 2008 and September 2011.

RESULTS

There was no difference between the SPA and CL operations, as regards the patient's sex (55.0 vs. 62.8% males, p = 0.411), comorbidity (ASA I 10.0 vs. 12.8%; ASA II 57.5 vs. 59.0%; ASA III 32.5 vs. 25.6%; ASA IV 0 vs. 2.6%, p = 0.722) and body mass index (26.2 vs. 28.0 kg/m(2), p = 0.073). However, SPA patients were younger (mean age 54.1 vs. 64.8 years, p = 0.001), and malignancy was a less common indication for surgery (25.0 vs. 71.8%, p < 0.001). There were no conversions to open surgery, and one death occurred in the CL group (1.3%). Mean operating time (162 vs. 170 min, p = 0.547), median post-operative hospital stay (4 vs. 4 days, p = 0.255) and morbidity (7.5 vs. 12.8%, p = 0.538) were comparable.

CONCLUSIONS

SPA laparoscopic surgery appears safe in the hands of experienced laparoscopic surgeons, with no increase in operating time, length of stay, morbidity and mortality. Selection of patients with indications for surgery for benign disease may be of importance to ensure an oncologically safe initial uptake of SPA colorectal practice.

[Standardising sigmoidectomy by single umbilical incision]

The increase in single-incision endoscopic surgery has led to more and more procedures and surgical groups who perform them. Segmental resection is the procedure most likely to benefit from this approach since it achieves a significant minimisation in the parietal access; with umbilical mini-laparotomy the entrance ports are grouped together and extraction of the piece and preparation of the anastomosis can be performed. Among the colorectal procedures, sigmoidectomy seems to be the most appropriate area to start using these techniques by groups with laparoscopic colorectal experience. Our aim is the standardisation of single-incision sigmoidectomy, analysing the process with the support of video sequences, and placing emphasis on the factors where it differs from conventional laparoscopy and on the key points in order to avoid problems during the execution of the process.

Outcomes for case-matched single-port colectomy are comparable with conventional laparoscopic colectomy

AIM

With the introduction of single-port surgery, expected advantages are improved cosmesis, decrease of pain and shorter length of stay. The aim of this study was to compare early outcomes of single-port colectomy with those of conventional laparoscopic colectomy.

METHOD

All consecutive patients undergoing single-port colectomy between January and June 2010 were identified from a prospective database. They were matched for age, sex, body mass index, American Society of Anesthesiology score and type of resection with patients who had conventional laparoscopic colectomy. All perioperative data, analgesic requirement, pain scores and inflammatory response were compared using the Wilcoxon signed-rank and McNemar tests.

RESULTS

Fourteen patients [five men, nine women; median age (interquartile range) 56 (30-73) years, body mass index (interquartile range) 22 (20-24) kg/m2] underwent single-port colectomy and were matched with patients who had conventional laparoscopic colectomy. Median operating times, estimated blood loss, pain scores, analgesic requirement, inflammatory response and length of hospital stay were similar. Median increase in incision length was significantly higher in the single-port group (P=0.004), but maximal incision length for specimen extraction was comparable. There were no anastomotic leaks, wound infections or 30-day readmissions.

CONCLUSION

In a case-matched setting with a small sample size, single-port laparoscopic colectomy has comparable outcomes to conventional laparoscopic colectomy.

Comparison of clinical outcome of single-incision laparoscopic surgery using a simplified access system with conventional laparoscopic surgery for malignant colorectal disease

AIM

Instrument crowding is encountered in single-incision laparoscopic surgery (SILS). Our aim was to compare the results of SILS with those of conventional laparoscopic surgery (CLS) for malignant colorectal disease.

METHODS

The records of 27 patients who received SILS for the treatment of malignant disease using a home-made multiple-port system were compared with those of 68 patients who received CLS performed in a standard manner using four to five trocar sites.

RESULTS

There were no significant differences in age, gender, disease stage, tumour location or tumour size between the SILS and CLS groups. The most common surgery was high anterior resection in both groups (SILS, 63.0%vs CLS, 58.8%). There were no significant differences between the groups in types of surgery performed, length of bowel resected, resection margin, blood loss, duration of surgery or postoperative complications. Postoperative pain scores were significantly higher in the SILS group than in the CLS group (3.07 ± 1.14 vs 2.41 ± 0.63, respectively, P < 0.001).

CONCLUSIONS

SILS is as effective as CLS, and is not associated with increased duration of surgery, blood loss or complications.

Minilaparoscopic colorectal resections: technical note

Laparoscopic colorectal resections have been shown to provide short-term advantages in terms of postoperative pain, general morbidity, recovery, and quality of life. To date, long-term results have been proved to be comparable to open surgery irrefutably only for colon cancer. Recently, new trends keep arising in the direction of minimal invasiveness to reduce surgical trauma after colorectal surgery in order to improve morbidity and cosmetic results. The few reports available in the literature on single-port technique show promising results. Natural orifices endoscopic techniques still have very limited application. We focused our efforts in standardising a minilaparoscopic technique (using 3 to 5 mm instruments) for colorectal resections since it can provide excellent cosmetic results without changing the laparoscopic approach significantly. Thus, there is no need for a new learning curve as minilaparoscopy maintains the principle of instrument triangulation. This determines an undoubted advantage in terms of feasibility and reproducibility of the procedure without increasing operative time. Some preliminary experiences confirm that minilaparoscopic colorectal surgery provides acceptable results, comparable to those reported for laparoscopic surgery with regard to operative time, morbidity, and hospital stay. Randomized controlled studies should be conducted to confirm these early encouraging results.

Safety, feasibility, and short-term outcomes of single port access colorectal surgery: a single institutional case-matched study

BACKGROUND

Feasibility of single port access (SPA) colorectal surgery has been established for various procedures from ileocecal resection to proctectomy. Nevertheless, its benefits compared to conventional laparoscopy still need to be assess. The aim of this study was to compare SPA to conventional colorectal laparoscopic surgery in a single institutional case-matched study.

METHODS

From July 2009 to July 2010, 25 SPA colorectal resections were matched on main predictive risk factors of postoperative complications, in a one to two fashion, with patient having the same procedure for the same indication by conventional laparoscopy.

RESULTS

Patient characteristics were comparable between both groups. SPA was successfully performed in 24 of 25 patients, with a need to conversion to standard laparoscopy in one case (4%). SPA was associated with a significantly shorter median operative time (130 vs 180 min, p = 0.04) and hospital stay (6 vs 7 days, p = 0.005). Postoperative morbidity rates were similar between the two groups (4% vs 16%, p = 0.25).

CONCLUSION

SPA colorectal resection can be safely performed in selected patients with results comparable to those observed after conventional laparoscopic surgery. However, larger studies including randomized controlled trail are needed to demonstrate possible benefits of SPA colorectal resection over conventional colorectal laparoscopic surgery.

Single-incision laparoscopic surgery for ileocolic resection in Crohn's disease

BACKGROUND

Single-incision laparoscopic surgery is a development in the field of minimally invasive surgery that is being increasingly used for colorectal procedures.

OBJECTIVE

We report on the short-term results of single-port laparoscopic ileocolic resection in patients with ileocecal Crohn's disease.

DESIGN

This investigation is a retrospective matched-pair control study. Data were obtained from a prospectively maintained single-institution inflammatory bowel disease database.

SETTINGS

This study was conducted at a tertiary care university hospital.

PATIENTS

Twenty consecutive patients receiving elective single-port ileocolic resection between April 2010 and May 2011 were included (6 male, 14 female; age, 31.6 ± 10.8 years; BMI, 21.5 ± 2.6 kg/m). Their data were compared with the data of 20 individually matched patients who had undergone standard 3-trocar laparoscopic-assisted ileocolic resection between 2007 and 2010 (6 male, 14 female; age, 31.7 ± 10.7 years; BMI, 21.2 ± 2.5 kg/m). All patients had medically refractory stenosis of the terminal ileum in histologically confirmed Crohn's disease.

INTERVENTIONS

Single-port laparoscopic-assisted or standard laparoscopic-assisted ileocolic resection was performed.

MAIN OUTCOME MEASURES

The primary outcomes measured were the surgical details and early outcome.

RESULTS

: The mean length of the paraumbilical single-port incision was 3.8 cm (range, 2.5-5.0 cm). Conversion rates were similar in both groups (1/20 vs 2/20, p = 0.55). Additional strictureplasties or short-segment small-bowel resections were performed in both groups. The overall complication rate was 20% (4/20) in both groups. There were no observed differences in postoperative pain scores and hospital stay duration.

LIMITATIONS

The limitations of this study were as follows: this study was a comparison of 2 different time points with possible selection bias, there was no prestudy power calculation, and the study might be underpowered.

CONCLUSIONS

Single-port ileocolic resection is a safe procedure for the surgical treatment of stenotizing Crohn's disease of the terminal ileum. Avoidance of additional trocars was the only identified benefit.

The short-term outcomes of conventional and single-port laparoscopic surgery for colorectal cancer

OBJECTIVE

The aim of this study was to show the safety and feasibility of single-port laparoscopic surgery (SPLS) by comparing its short-term outcomes with those following conventional laparoscopic surgery.

SUMMARY BACKGROUND DATA

Single-port laparoscopic surgery maximizes the advantages of laparoscopic surgery, and therefore it can be an ultimate attainment of laparoscopic surgery. However, no comparative study has addressed its role in colorectal cancer.

METHODS

Prospectively collected data of patients who had undergone either conventional laparoscopic surgery (n = 106) or SPLS (n = 73) for colorectal cancer between March 2006 and May 2010 were analyzed retrospectively. The short-term outcomes of these 2 operative modalities were compared.

RESULTS

Of the 179 study subjects, 103 (57.5%) had colon cancer and 76 (42.5%) had rectal cancer. Various operative methods, from right hemicolectomy to abdominoperineal resection, were used according to location through either conventional laparoscopic or SPLS approach. In its comparison, mean surgical time was greater in the SPLS group (255 vs 276 minutes, P < 0.008). Acquired length of sufficient surgical margins and the number of harvested lymph nodes were comparable. Postoperative recovery was faster in the SPLS group, in terms of shorter time duration before first flatus (SPLS vs conventional laparoscopic surgery; 2.5 ± 1.2 vs 3.2 ± 1.8 days, P = 0.004), earlier initiation of free oral fluids (1.8 ± 2.2 vs 2.6 ± 1.7 days, P = 0.000) and of a solid diet (4.2 ± 2.9 vs 6.5 ± 2.7 days, P = 0.000), less frequent usage of parenteral narcotics (2.2 ± 3.2 vs 3.5 ± 4.0 times, P = 0.029), and shorter hospital stay (9.6 ± 9.6 vs 15.5 ± 9.8 days, P = 0.000).

CONCLUSION

This study shows that SPLS is both safe and feasible in colorectal cancer, and that it has equivalent or better short-term outcomes than conventional laparoscopic surgery. Accordingly, the authors conclude that SPLS can be an alternative to conventional laparoscopic surgery for colorectal cancer.

Single-port laparoscopic diverting sigmoid colostomy

BACKGROUND

Single-port laparoscopic surgery has been described for various colorectal conditions. Here, we report the first 4 single-port laparoscopic sigmoid colostomies for fecal diversion.

METHODS

A 1.5-cm-round incision was made on the skin at a previously marked colostomy site. A wound retractor was inserted and an access platform with four 5-mm trocars was attached to the wound retractor. The sigmoid colon was mobilized using electrocautery, laparoscopic scissors, or an advanced bipolar device. A standard Brooke colostomy was created through the initial skin incision.

RESULTS

Four elective single-port laparoscopic diverting colostomies were performed. Indications included obstructing colon and rectal cancers and intractable Crohn's proctitis. The average operative time was 73 minutes (range, 53-105), and blood loss was minimal (<50 mL). There were no intraoperative complications. Three of 4 patients received oral analgesia, and one patient received patient-controlled intravenous analgesia postoperatively. The average time to passage of flatus was 1 day. Diet was advanced either on the day of surgery or on postoperative day 1. The length of hospital stay ranged from 0 to 15 days.

CONCLUSION

Single-port laparoscopic sigmoid colostomy is an effective technique that allows full intra-abdominal visualization and colonic mobilization while eliminating the need for additional skin incisions other than the colostomy site itself.

Total abdominal colectomy for refractory ulcerative colitis. Surgical treatment in evolution

INTRODUCTION

Total abdominal colectomy is the procedure of choice for debilitated patients with acute, medical refractory ulcerative colitis in our practice. A laparoscopic approach has been previously shown to be safe and effective, and has become our preferred strategy. This study illustrates the laparoscopic evolution towards a truly minimally invasive approach comparing three phases of a single colorectal surgeon experience.

MATERIAL AND METHODS

In May 2010 single incision laparoscopy was introduced in our practice and has become our preferred approach. Ten consecutive ulcerative colitis patients were case matched and compared with 10 previous laparoscopic-assisted (Feb 2003-Jan 2007) and 10 hand-assisted (Feb 2006-Apr 2010) total abdominal colectomies. Patient, disease and surgery-related factors were analyzed and short-term outcomes were compared.

RESULTS

Given the study design, there were no differences in demographics, smoking history, disease duration and severity, nutritional and inflammatory parameters, and indication for surgery between groups. Single incision patients were more likely to have received immunosuppressive therapy within 30 days of the surgery (p = 0.016). In the single incision group we noticed significantly shorter duration of surgery (p < 0.001) and faster resumption of solid diet (p = 0.019) compared to the other groups. Other short-term outcomes did not differ between groups.

CONCLUSION

Single incision laparoscopy offers a safe alternative to other laparoscopic approaches. Despite the higher technical complexity, the duration of surgery is shorter with faster resumption of oral intake. Studies with larger sample size and longer follow-up will be required to confirm the benefits of this approach.

Single-incision laparoscopic total abdominal colectomy for refractory ulcerative colitis

BACKGROUND

A three-stage restorative proctocolectomy with ileal pouch-anal anastomosis is the treatment of choice for the particularly debilitated patient with medically refractory ulcerative colitis (UC). Laparoscopic surgery has been shown to offer several advantages over the open approach in this setting. Single-incision laparoscopic surgery is an emerging minimally invasive strategy representing a truly scarless procedure for the first surgical step, namely, the total abdominal colectomy (TAC).

METHODS

Nine consecutive patients with medically refractory UC underwent a single-incision laparoscopic TAC between May and October 2010. All patients were on aggressive medical therapy with corticosteroids or immunosuppressors and were selected for this approach on the basis of their body habitus and the absence of relevant comorbidities. The whole operation was performed through a single access to the abdominal cavity, placed at the ostomy site marked preoperatively.

RESULTS

Mean operating time was 142 ± 23 min, with an estimate blood loss of 108 ± 125 ml. No intraoperative complications or conversions to conventional laparoscopy or open surgery occurred. In all cases the postoperative course was uneventful. The return of bowel function was observed on postoperative day 1.7 ± 0.7, and patients could tolerate a solid diet on postoperative day 3 ± 0.5. The mean postoperative length of stay was 5.2 ± 1.3 days.

CONCLUSIONS

In our experience, a single-incision laparoscopic approach to total abdominal colectomy for refractory ulcerative colitis has been shown to be safe and feasible. Initial results suggest that this technique can lead to improvements in short-term outcomes in selected patients.

Single-incision laparoscopic sigmoidectomy and rectopexy case series

Single-incision laparoscopic surgery has recently been investigated as a novel approach to colorectal pathology. This article describes 3 cases of single-incision laparoscopic sigmoidectomy with rectopexy for the treatment of rectal prolapse. We demonstrate our surgical approach and results from these initial patients treated with this novel technique.

Single incision laparoscopic colorectal surgery: a single surgeon experience of 102 consecutive cases

BACKGROUND

Due to the recent heightened interest in even less invasive surgery, single port laparoscopic colorectal surgery is quickly gaining acceptance. While this access technique was first described in 2007 for colorectal resective procedures, large series are lacking.

METHODS

Between January 2009 and October 2010, all patients undergoing single port colorectal surgery performed by a single surgeon were prospectively entered into an IRB-approved database and studied with regard to perioperative events, morbidity, and mortality.

RESULTS

One hundred and two consecutive patients underwent a single port colorectal procedure. Mean age was 47 years (9-93 years), and average body mass index was 26 kg/m(2) (15-39 kg/m(2)). Primary diagnoses included ulcerative colitis (51), neoplasia (23), Crohn's disease (14), diverticulitis (11), familial adenomatous polyposis (1), and other (2). Procedures included 23 total colectomies, 40 segmental colectomies, and 19 other procedures. There was 1 conversion to an open operation, and 18 (18%) patients required placement of additional ports (1 port: N = 13; 2 ports: N = 2; 3 ports: N = 3). Average operating room time was 99 min (13-245), mean length of incision was 3.7 cm (1.2-7.8 cm), and average estimated blood loss was 140 ml (0-750 ml). There was one postoperative death, and 39 (38%) patients experienced minor postoperative complications. Mean lymph node harvest for oncologic resections was 44 (14-142). The average length of hospital stay was 5.9 days (2-24 days).

CONCLUSIONS

With proper patient selection and laparoscopic experience, single port colorectal surgery can be performed for even the most complex colorectal procedures. Further studies are needed to assess the benefits that single port colorectal surgery has over a conventional laparoscopic approach.

Single-incision laparoscopic colonic surgery

AIM

SILS is an area of growing interest in colorectal surgery. We report our preliminary experience of 13 consecutively selected patients undergoing colonic surgery using SILS.

METHOD

From July 2009 to January 2010, 13 patients (five men) of median age 56 (23-82) years and a body mass index (BMI) of 23.5 (18-30) kg/m(2) underwent colonic surgery. Procedures included subtotal colectomy (1), ileocolic resection (2), right colectomy (4) and sigmoidectomy for benign disease (6). Three instruments (including camera) were introduced through a single 2.5-cm port (SILS™ Port Multiple Instrument Access Port; Covidien Inc., Norwalk, Connecticut, USA) inserted at the umbilicus.

RESULTS

The median operating time was 150 (100-240) min, and the median size of the umbilical port incision was 32 (25-50) mm. There was no postoperative mortality and morbidity, and the median hospital stay was 6 (4-10) days. The cosmetic result was judged to be excellent in 12 of 13 patients who felt it to be better than expected.

CONCLUSION

This preliminary experience shows that SILS is technically feasible and safe for colonic resection.

Single-Incision Laparoscopic Reversal of Hartmann Procedure via the Colostomy Site Only

Background: Transumbilical single-incision laparoscopic surgery (SILS) provides an alternative to traditional multiport laparoscopic surgery. The technique may also avoid some of the difficulties surrounding laparoscopic Hartmann reversal. This case represents the first SILS Hartmann reversal via the colostomy site. Methods: SILS Hartmann reversal was performed in a 56-year-old man with a history of resection for perforated diverticulitis. The procedure was performed via a single port placed into the former colostomy site. A combination of flexible and straight instruments was used. Results: The procedure was completed successfully with an operative time of 104 minutes. Recovery was uneventful, and the patient was discharged on postoperative day 5, with no complaints at follow-up. Conclusion: SILS Hartmann procedure reversal via the colostomy site is safe. The approach avoids additional incisions and allows avoidance of dense adhesions to the previous midline incision—a new benefit of SILS, apart from cosmesis.

Single-port access laparoscopic reversal of Hartmann operation

BACKGROUND

Single-port access offers cosmetic advantages in addition to the well-recognized benefits of standard multiport laparoscopic surgery, and can be performed with the use of standard straight instruments. We describe a technique of single-port access reversal of Hartmann colostomy by use of the colostomy site for access.

METHODS

After routine skin preparation and laparoscopic setup, the colostomy is mobilized from its mucocutaneous border, and the anvil of a circular stapler is secured to the distal lumen. By the use of a GelPoint system with 3 or 4 trocars, the intra-abdominal adhesions are divided and the splenic flexure is mobilized to achieve sufficient access to the abdominal and pelvic cavities and proximal colonic mobility. The rectal stump is mobilized to the mid rectum, starting from the posterior mesorectal fascia around to the anterior rectal wall. A tension-free colorectal anastomosis is secured with a standard circular stapling device inserted transanally, and leak tested. The colostomy wound is closed in standard fashion.

RESULTS

Five patients underwent single-port access reversal of Hartmann resection (4 diverticular perforations and 1 pT3N0 colon cancer), with a mean operating time of 155 (range, 137-187) minutes and a median length of stay of 3 (range, 2-11) days. There were no conversions, major surgical morbidity, or deaths.

CONCLUSION

Single-port access reversal of Hartmann colostomy through the stoma site is safe, and it offers additional cosmetic advantages with no apparent additional morbidity in comparison with standard multiport surgery.

Single-incision versus conventional laparoscopic sigmoid colectomy: a case-matched series

BACKGROUND

Single-incision laparoscopic surgery is an emerging modality that has proven to be safe and feasible for colon resection in multiple case reports and series. Nonetheless, comparative analyses with established techniques are limited in the published literature. We evaluated the efficacy of single-incision laparoscopic colectomy (SILC) for the treatment of sigmoid disease through a matched-case comparison with conventional laparoscopic colectomy (CLC).

METHODS

Twenty patients who underwent single-incision laparoscopic sigmoid resection for benign or malignant disease between July 2009 and September 2010 were matched to patients who underwent conventional laparoscopic sigmoid colectomy. Demographic, intraoperative, and postoperative data were assessed.

RESULTS

Twenty SILC and CLC cases each were paired based on gender (p < 1.0), age (p < 0.47), pathology (p < 1.0), and surgical procedure (p < 1.0). Ten patients (50%) in the SILC group and eight patients (40%) in the CLC group had a history of prior abdominal surgery (p < 0.53). There were no conversions to open surgery; however, one SILC procedure (5%) required conversion to CLC (p < 0.31). There was no significant difference in mean operating time between groups (p < 0.80). Mean estimated blood loss was significantly lower for SILC compared to CLC (p < 0.007). Mean lymph node extraction was comparable between groups in the subset of patients with malignant disease (p < 0.68). Two postoperative complications were encountered in each group. The mean length of hospital stay for SILC and CLC was 3.2 ± 1.0 and 3.8 ± 2.1 days, respectively (p < 0.25). There were no readmissions or reoperative interventions in either group.

CONCLUSION

Compared with conventional laparoscopic technique, single-incision laparoscopic surgery results in similar intraoperative and postoperative outcomes. The technique avoids use of multiple trocar sites and may safely be performed in patients with a history of previous abdominal surgery while maintaining a short length of hospital stay and low complication rate.

Single incision ("scarless") laparoscopic total abdominal colectomy with end ileostomy for ulcerative colitis

INTRODUCTION

Total abdominal colectomy with ileal pouch-anal anastomosis is the intervention of choice for patients with medically uncontrolled ulcerative colitis. A three-stage approach is preferred in particularly debilitated patients. In this setting, laparoscopic surgery has shown to be safe, offering several advantages over the open approach. Single incision laparoscopic surgery is a new minimally invasive approach which represents a true scarless procedure for the first step of the restorative proctocolectomy. In this article, we describe our technique in performing the single-incision total abdominal colectomy.

METHODS

The single-access device is inserted through a circular incision made at the ileostomy site, which was marked preoperatively. The procedure is performed with conventional laparoscopic instruments through one 12-mm and three 5-mm trocars introduced in the single-access device gel platform. Good exposure of the operating field is obtained by changing the Trendelenburg position and the lateral tilting of the table. We start the operation by mobilizing the right colon, then proceeding clockwise to the rectosigmoid junction. The ileocolic pedicle is divided after the visualization of the right ureter and duodenum. The right colon is mobilized in the medial-to-lateral fashion. The hepatocolic ligament is taken down, and the transverse mesocolon and the greater omentum are divided to mobilize the transverse colon. Subsequently, the lateral attachments of descending colon are taken sharply, and the avascular line of Toldt is bluntly dissected. Under direct visualization of the left ureter, the inferior mesenteric vein and the branches of the sigmoid arteries are identified, dissected, and divided. After switching to a 5-mm laparoscope, the rectosigmoid junction is divided with an endoscopic stapler. The specimen is exteriorized, and the terminal ileum is divided extracorporeally. Finally, the ileostomy is matured in the standard Brooke fashion.

CONCLUSION

Between May and November 2010, we performed ten single-incision total abdominal colectomies, all completed successfully without complications or need of conversion, with a mean operative time of 139±24 min and an estimated blood loss of 100±120 ml. The postoperative course was unremarkable in all cases, with prompt return of bowel activity and short postoperative stay. In our experience, single-incision total abdominal colectomy has shown to be a safe alternative to standard laparoscopy in selected patients and appears to be a promising technique with the potential to improve short-term outcomes.

Single-port access laparoscopic surgery for rectal cancer: initial experience with 10 cases

BACKGROUND

Single-port access laparoscopic surgery is emerging as a method to improve the morbidity and cosmetic benefits of conventional laparoscopic surgery and minimize the surgical trauma. However, the feasibility of this procedure in rectal surgery has not yet been determined.

OBJECTIVE

This study aimed to evaluate our initial experience using single-port access in laparoscopic rectal surgery.

DESIGN

This investigation was designed as a prospective clinical study.

SETTINGS

The study took place in a university hospital.

PATIENTS

Ten patients with nonmetastatic rectal cancer underwent rectal resections.

MAIN OUTCOME MEASURES

The main outcome measures are perioperative data including intraoperative and postoperative complications, pathological outcome, length of stay, and short-term follow-up.

RESULTS

The median age of the patients was 67 (range, 49-83) and the median body mass index was 23.5 kg/m (range, 20-25 kg/m). Six patients had previously had abdominal surgery. The operations were 6 low anterior resections (4 receiving diverting ileostomy), 2 anterior resections, 1 Hartmann procedure, and 1 abdominoperineal resection. The median operative time was 229 minutes (range, 185-318), and blood loss ranged from 0 to 100 mL. In 2 cases, it was necessary to add an extra 5-mm port to deal with intraoperative complications. The median hospital stay was 7 days (range, 4-14). There were no anastomotic leaks and no mortality. All of the resection margins were clear, and the circumferential resection margin was a median of 11 mm (range, 2.5-25). The median number of lymph nodes examined was 14 (range, 3-20).

LIMITATIONS

This study's limitations include the lack of registration of postoperative pain, immunological parameters, and long-term clinical and oncological outcome. The small sample size makes it difficult to ascertain complication and conversion rates.

CONCLUSIONS

Single-port access laparoscopic surgery for rectal cancer can be performed safely in slim patients with a small tumor. This technique can be an alternative option for selected patients in the hands of skilled laparoscopic surgeons. Prospective comparative studies are needed to determine the role for this technique approach in the future.

A simple and safe technique for performing single-port laparoscopic resection of appendiceal mucocele

We report a new method of performing single-port laparoscopic surgery for appendiceal mucocele. The key points of our technique are placing a 3/4 circumferential skin incision with multiple radial splits on the confine of the umbilicus, use of a "home-made" multichannel port system, and trimming the skin incision straight through the confine of the umbilicus at the time of wound closure. A 65-year-old woman with appendiceal mucocele, 80 mm in diameter, successfully underwent ileocecal resection by this procedure. She remains in good health without any wound complications 8 months postoperatively.

Single-incision laparoscopic colectomy: outcomes of an emerging minimally invasive technique

PURPOSE

Single-incision laparoscopic colectomy (SILC) is an emerging procedure in the field of minimally invasive colon and rectal surgery. The purpose of this study was to evaluate the safety and feasibility of this procedure.

METHODS

Between July 2009 and April 2010, SILC was performed for 35 patients presenting with pathology of the colon. Surgical procedures included right hemicolectomy, sigmoid resection, and total colectomy. Demographic data, intraoperative parameters, and short-term postoperative outcomes were assessed.

RESULTS

Thirty two of the 35 patients (91.4%) underwent successful completion of SILC while 3 patients required laparoscopic modifications. The mean incision length was 3.4 cm with a range of 2-6 cm. The mean total operative time (OT) for right, left, and total colectomies was 158.8 ± 31.8 min, 127.0 ± 37.1 min, and 216.3 ± 72.6 min, respectively. Overall, the OT was not significantly different between patients with a body mass index (BMI) ≥ 25 kg/m(2) (147.9 ± 47.9 min) compared to those with a BMI <25 kg/m(2) (123.1 ± 40.9 min). In the subset of patients with malignant disease, the mean lymph node extraction was 23.5 ± 12.0 and all margins were negative. There were no intraoperative complications, and the overall mean length of hospital stay was 2.9 ± 1.0 days (range 2-6 days). The postoperative morbidity rate was 11.4%.

CONCLUSIONS

Single-incision laparoscopic colectomy is a safe and feasible procedure for benign and malignant diseases of the colon. This modality can be successfully applied for various colorectal procedures without conversion to open surgery, resulting in a short length of hospital stay and a minimal short-term complication rate.

Step-wise integration of single-port laparoscopic surgery into routine colorectal surgical practice by use of a surgical glove port

INTRODUCTION

The cost associated with single-port laparoscopic access devices may limit utilisation of single-port laparoscopic surgery by colorectal surgeons. This paper describes a simple and cheap access modality that has facilitated the widespread adoption of single-port technology in our practice both as a stand-alone procedure and as a useful adjunct to traditional multiport techniques.

METHODS

A surgical glove port is constructed by applying a standard glove onto the rim of the wound protector/retractor used during laparoscopic resectional colorectal surgery. To illustrate its usefulness, we present our total experience to date and highlight a selection of patients presenting for a range of elective colorectal surgery procedures.

RESULTS

The surgical glove port allowed successful completion of 25 single-port laparoscopic procedures (including laparoscopic adhesiolysis, ileo-rectal anastomosis, right hemicolectomy, total colectomy and low anterior resection) and has been used as an adjunct in over 80 additional multiport procedures (including refashioning of a colorectal anastomosis made after specimen extraction during a standard multiport laparoscopic anterior resection).

CONCLUSIONS

This simple, efficient device can allow use of single-port laparoscopy in a broader spectrum of patients either in isolation or in combination with multiport surgery than may be otherwise possible for economic reasons. By separating issues of cost from utility, the usefulness of the technical advance inherent within single-port laparoscopy for colorectal surgery can be better appreciated. We endorse the creative innovation inherent in this approach as surgical practice continues to evolve for ever greater patient benefit.

Single Incision Laparoscopic Right Hemicolectomy for Colon Cancer

Single incision laparoscopic colectomy has been reported to be safe and feasible using several techniques and devices. The authors’ report their experience with a single incision laparoscopic colectomy performed in a lateral to medical fashion using a commercially developed access device with standard laparoscopic instruments.

Single-port laparoscopic total proctocolectomy with ileal pouch-anal anastomosis: initial operative experience

BACKGROUND

Single-port laparoscopic surgery (SPLS) has been used in urologic, gynecologic, general, and colorectal surgery. We herein report our experience with the use of SPLS for total proctocolectomy with ileal pouch-anal anastomosis (RP/IPAA).

METHODS

All patients who underwent a RP/IPAA using SPLS between June and September 2009 were identified from a prospectively maintained laparoscopic database. All procedures were performed with the use of a 5-mm Olympus EndoEye™ and traditional laparoscopic instruments via a SILS™ port placed at the planned ileostomy site.

RESULTS

There were five patients (3 male) included in the study. Median age was 43 years (range=13-47 years). Median body mass index was 20.66 kg/m2 (range=14.63-25.97 kg/m2). Diagnoses included ulcerative colitis (n=4) and familial adenomatous polyposis (n=1). Median ASA score was 2 (range=1-3). Median operative time was 153 min (range=132-278 min). Median estimated blood loss was 100 ml (range=50-200 ml). There were no conversions to either a conventional laparoscopic or an open procedure. Median time to return of bowel function was 2 days. Median length of stay was 4 days (range=3-6 days). Postoperative complications included two patients with partial small-bowel obstructions. Both resolved with conservative management. All patients had their ileostomies closed.

CONCLUSION

RP/IPAA using SPLS is a safe technique. Additional studies are needed to compare SPLS to conventional laparoscopy and open surgery with respect to operative times, convalescence, and outcomes.