Single-access Laparoscopic Surgery Research Articles

Comparison of Survival between Single-Access and Conventional Laparoscopic Surgery in Rectal Cancer

Introduction Innovative laparoscopic surgery for rectal cancer can be classified into 2 types: firstly, new instruments such as robotic surgery and secondly, new technique such as single-access laparoscopic surgery (SALS) and transanal total mesorectal excision (TaTME). Most reports of SALS for rectal cancer have shown pathologic outcomes comparable to those of conventional laparoscopic surgery (CLS); however, SALS is considered to be superior to CLS in terms of lower levels of discomfort and faster recovery rates. This study aimed to compare the survival outcomes of the two approaches. Methods From 2011 to 2014, 84 cases of adenocarcinoma of the rectum and anal canal were enrolled. The operations were anterior, low anterior, intersphincteric, and abdominoperineal resections. Data collected included postoperative outcomes. The oncological outcomes recorded included 3-year and 5-year survival, local recurrence, and metastasis. Results SALS was performed on 41 patients, and CLS was utilized in 43 cases. The demographic data of the two groups were similar. Intraoperative volumes of blood loss and conversion rates were similar, but operative time was longer in the SALS group. There were no significant differences in postoperative complications or pathological outcomes. The oncologic results were similar in terms of 3-year survival (100% and 97.7%; p = 1.00), 5-year survival (78.0% and 86.0%; p = 0.401), local recurrence rates (19.5% vs 11.6%, p = 0.376), and metastasis rates (19.5% vs 11.6%; p = 0.376) for SALS and CLS, respectively. Conclusion SALS and CLS for rectal and anal cancer had comparable pathological and survival results, but SALS showed some superior benefits in the early postoperative period.

A Novel System for Single-Port Laparoscopic Surgery: Preliminary Experience

Aims: To present preliminary data of single-access laparoscopic surgery with a new device for the treatment of benign adnexal pathologies. Methods: Ten women with benign adnexal pathologies underwent salpingectomy (n = 4) and ovarian/para-ovarian cyst enucleation (n = 6) using a laparo-endoscopic single-port approach with an innovative advanced multiport reusable trocar inserted transumbilically through a small wound retractor. Trocar introduction time, operative time, estimated blood loss, conversion to standard laparoscopy, peri- and postoperative complications, hospital stay and Visual Analog Scale score (as assessment of pain and cosmesis) were analyzed. Results: Port placement was successful in all patients. Mean trocar introduction time was 4.4 min (range 3.4-5.3 min) and no intra or postoperative complication occurred. The mean operating time was 50.0 ± 9.2 min and mean blood loss was 28.5 ± 8.8 ml. The mean hospital stay following surgery was 1.6 ± 0.5 days and convalescence was complete in 1 week. Neither scores for postoperative incisional pain nor cosmesis side effects have been observed in any subjects. Conclusion: We concluded that adnexal single-port surgery performed with this innovative advanced surgical instrumentation is a feasible, safe, and effective technique that drastically reduces postoperative pain and does not compromise cosmetic appearance. The isolation of the operative field by means of the drape prevents the contamination of the port site that occurs frequently, and mainly in adnexal pathologies of uncertain etiology. In addition, the ease of insertion and the conformation of the new port access also make the procedure feasible in obese patients.

Single-access laparoscopic rectal resection versus the multiport technique: a retrospective study with cost analysis.

Single-access laparoscopic surgery is not used routinely for the treatment of colorectal disease. The aim of this retrospective cohort study is to compare the results of single-access laparoscopic rectal resection (SALR) versus multiaccess laparoscopic rectal resection with a mean follow-up of 24 months. This retrospective cohort study enrolled 42 patients. Between January 2010 and June 2012, 21 SALRs were performed. These patients were compared with a group of 21 other patients who had undergone multiport laparoscopic rectal resection. This control group had the same exclusion criteria and patient demographics. Short-term outcomes were reassessed with a mean follow-up of 2 years. Statistical analysis included the Student t test and Fisher's exact test. Finally, we performed a differential cost analysis between the 2 procedures. Exclusion criteria, patient demographics, and indication for surgery were similar in both groups. The conversion rate was 0% in both groups. There were no intraoperative complications or deaths. Bowel recovery was similar in both groups. No interventions, readmissions, or deaths were recorded at 30 days' follow-up. At a mean follow-up of 24 months, all the patients with a preoperative diagnosis of cancer are still alive and disease free. Considering the selected 3 items, the mean cost per patient for single-access laparoscopic surgery and multiple-access laparoscopic surgery were estimated as 7213 and 7495 Euros, respectively. We think that SALR could be performed in selected patients by surgeons with high multiport laparoscopic skills. It is compulsory by law to evaluate outcomes and cost-effectiveness by using randomized controlled trials.

Single-access laparoscopic rectal cancer surgery using the glove technique

Single-access laparoscopic surgery has been widely adopted in many kinds of surgery including laparoscopic cholecystectomy and laparoscopic colectomy. Performing single-access rectal surgery, however, has technical drawbacks such as instrument collision and endostaple application issues. The glove technique is likely to mitigate these problems. Fourteen patients with anal canal to mid-rectum cancers were recruited and underwent single-access laparoscopic surgery via the glove technique. An incision was made at the paraumbilicus to insert a wound protector with surgical gloves. The operation was medial to lateral and inferior mesenteric artery and inferior mesenteric vein were identified and controlled. Total mesorectal excision was performed while keeping traction and countertraction down to the pelvic floor. Average operative time was 251.66 min (range, 180-300 min). Hospital stay ranged from 5 to 8 days (median, 7 days). No serious early postoperative surgical problems related to complications were observed. The pathologic results showed good mesorectal capsule grading. The mean lymph node harvest was 14 nodes (range, 7-26 nodes), and the mean wound length was 5 cm (range, 4-6 cm). In rectal surgery, the glove technique for single-access laparoscopic surgery is feasible and is comparable to commercial single-port techniques in terms of oncologic results.

Single-Access Laparoscopic Rectal Surgery Is Technically Feasible

Introduction. Single-access laparoscopic surgery (SALS) has been successfully introduced for colectomy surgery; however, for mid to low rectum procedures such as total mesorectal excision, it can be technically complicated. In this study, we introduced a single-access technique for rectum cancer operations without the use of other instruments. Aims. To show the short-term results of single-access laparoscopic rectal surgery in terms of pathologic results and immediate complications. Settings and Design. Prospective study. Materials and Methods. We selected middle rectum to anal canal cancer patients to undergo single-access laparoscopic rectal resection for rectal cancer. All patients had total mesorectal excisions. An umbilical incision was made for the insertion of a single multichannel port, and a mesocolic window was created to identify the inferior mesenteric artery and vein. Total mesorectal excision was performed. There were no perioperative complications. The mean operative time was 269 minutes; the median hospital stay was 7 days; the mean wound size was 5.5 cm; the median number of harvested lymph nodes was 15; and all patients had intact mesorectal capsules. Statistical Analysis Used. Mean, minimum–maximum. Conclusion. Single-access laparoscopic surgery for rectal cancer is feasible while oncologic principles and patient safety are maintained.

Invited comment on Kanakala et al.: Comparative study of safety and outcomes of single-port access versus conventional laparoscopic colorectal surgery

In the past 2 years, a total of 34 articles and two systematic reviews on single-access laparoscopic colorectal surgery have been published [1]. The article by Kanakala et al. [2] adds to the existing literature a series of 40 single-port colorectal resections with results that compare favourably with those of multiport laparoscopic surgery at the same institution. Its main clinical messages are single-port laparoscopy is safe in selected cases and cosmesis is the advantage of this technique compared with standard laparoscopic colorectal surgery. Although this might seem a minimalist message, it is important in the sense that it emphasizes that in colorectal surgery we are approaching the optimal outcome. If we exclude rectal surgery, morbidity and mortality of elective colon resections are minimal, long-term results are good or excellent, and as a consequence, the surgeons can concentrate on reducing abdominal wall trauma and improving cosmesis. Nevertheless, in the mind of the average surgeon, two questions arise: is it wise to propose a more complex and manually demanding surgical technique only to achieve a cosmetic improvement? Are 40 non-randomized, retrospective, selected cases sufficient to define the safety of a technique? Furthermore, is it logical to propose a consistent change in the laparoscopic approach when laparoscopic surgery for colorectal diseases represents at present less than 30 % of colorectal surgery in the Western countries and its role in colorectal cancer, the most common indication, has only recently been proven to be efficacious in the long term? At present, is it not more crucial to improve the clinical application and encourage the use of standard colorectal laparoscopic surgery rather than modifying this recently established technique? There is hardly any field of surgery where technical improvements are pushed forward so forcefully as in the field of endoscopic surgery. This progressive modification of established practice may even appear initially to be an undesirable change when addressing a problem or clinical condition and may only later and retrospectively prove to be an improvement [3]. Although numberless concerns may rise, I believe that single-port colorectal surgery should be carefully tested in clinical practice and that the concepts underlying this technique will undoubtedly be of help in reducing trauma to the body while maintaining the excellence of clinical outcome. Without any doubt, prospectively designed randomized clinical trials showing that there is indeed a difference without a significant compromise of safety should be awaited before there is a wide diffusion of these techniques, but in discussing pros and cons of single-port colorectal surgery, we agree with Margo’s statement that ‘innovation through deviation from standard practice is an important means of improving surgical care and needs to be encouraged even if results may not always turn out as expected’ [4].

Implementation and usefulness of single‐access laparoscopic segmental and total colectomy

Single-access laparoscopic surgery is a recent vogue in the field of minimally invasive colorectal surgery. While selected series have indicated feasibility, we prospectively examined its usefulness for resectional surgery in routine practice. All patients undergoing laparoscopic colorectal resection over a 12-month period were considered for a single-access approach by a single surgical team in a university hospital. This utilized a 'glove' port via a 3-5 cm periumbilical or stomal site incision, with standard rigid laparoscopic instruments then being used. Of 76 planned laparoscopic colorectal resections, 35 (47%) were performed by this single-incision laparoscopic modality without disruption of theatre list efficiency or surgical training obligations. The mean (range) age and body mass index of these 25 consecutive right-sided resections, eight total colectomies (seven urgent operations) and two anterior resections was 58 (22-82) years and 23.9 (18.6-36.2) kg/m(2) , respectively. The modal postoperative day of discharge was 4. For right-sided resections, the mean (range) postoperative stay in those undergoing surgery for benign disease was 4.0 days, while for those undergoing operation for neoplasia (n=18, mean age 71 years) it was 5.8 days and the average lymph node harvest was 13. Use of the glove port reduced trocar cost by 58% (€60/£53) by allowing the use of trocar sleeves alone without obturators. Single-incision laparoscopic surgery is an effective option for abdominal surgery and seems especially suited for laparoscopic-assisted right-sided colonic resections. The glove port technique facilitates procedural frequency and familiarity and proves economically favourable.

Single-Access Laparoscopic Surgery for Ileal Disease

Aim. Single-access laparoscopic surgery (SALS) can be effective for benign and malignant diseases of the ileum in both the elective and urgent setting. Methods. Ten consecutive, nonselected patients with ileal disease requiring surgery over a twelve month period were included. All had a preoperative abdominopelvic computerized tomogram. Peritoneal access was achieved via a single transumbilical incision and a “surgical glove port” utilized as our preferred access device. With the pneumoperitoneum established, the relevant ileal loop was located using standard rigid instruments. For ileal resection, anastomosis, or enterotomy, the site of pathology was delivered and addressed extracorporeally. Result. The median (range) age of the patients was 42.5 (22–78) years, and the median body mass index was 22 (20.2–28) kg/m2. Procedures included tru-cut biopsy of an ileal mesenteric mass, loop ileostomy and ileotomy for impacted gallstone extraction as well as ileal (n = 3) and ileocaecal resection (n = 4). Mean (range) incision length was 2.5 (2–5) cm. All convalescences were uncomplicated. Conclusions. These preliminary results show that SALS is an efficient and safe modality for the surgical management of ileal disease with all the advantages of minimal access surgery and without requiring a significant increase in theatre resource or cost or incurring extra patient morbidity.

Single access laparoscopic colorectal surgery: Lights and shadows

To minimize the complications related to conventional multiport laparoscopic surgery, the single access laparoscopic surgery has been developed. Some results of case series and case-controlled studies are supporting the feasibility and safety of Single Access Laparoscopic Colectomy (SALC). Since January 2009 we performed all kind of colorectal procedure by a single access laparoscopic approach. We began with right colectomy that represent the only procedure in which we did not reproduce the same surgical steps of multiport laparoscopic surgery. In contrast, we reproduce the same surgical technique of multiport colorectal resection during a left or rectal single access laparoscopic procedure as well as total colectomy. About the transferability of SALC, programs of training need to focus on safety and techniques. We believe that only high laparoscopic skills surgeon can perform SALC. It's mandatory to evaluate outcomes and cost-effectiveness of SALC respect to multiport laparoscopic colectomy using randomized trials.

Single-Access Laparoscopic Low Anterior Resection With Vertical Suspension of the Rectum

Single-access laparoscopic surgery was first introduced for colectomy and later adapted for anterior resection. During single-access laparoscopic pelvic procedures, such as total mesorectal excision, it is often difficult to obtain an adequate operative field. By suspending the rectum vertically, we were able to execute a total mesorectal excision with single-access laparoscopy. We describe here the use of this new procedure to treat rectal cancer. The selected 7 patients (1 male and 6 female) with stage II or III rectal cancer underwent the procedure. Single-port access to the abdomen was provided by a 3.0-cm incision at the right iliac fossa. The descending mesocolon was dissected by use of a medial approach, and a columnar magnet was placed on the surface of the abdominal wall to restore triangulation. The inferior mesenteric artery was skeletonized and the superior rectal artery divided during lymph node dissection. The total mesorectal excision extended to the pelvic floor and the rectum was vertically retracted with a suspending bar in collaboration with an extracorporeal magnet tool. The rectum was then transected below the reflection of the peritoneum. Intracorporeal anastomosis was performed with the double-stapling technique. Two pelvic drains were inserted through the single incision and the anus, respectively, for all patients. A defunctioning ileostomy was not created in any patient. Median total surgical time was 205 minutes (range, 175-245 min). Intraoperative blood loss was minimal in all patients (range, 1-20 mL). None of the cases required conversion to open surgery or addition of a second port. The only preoperative or postoperative complication occurred in one patient with clinical anastomotic leakage. Low anterior single-access laparoscopic resection seems safe and feasible when the rectum is suspended like a swing to ensure an adequate operative field.

Single-incision total laparoscopic hysterectomy

Single-incision laparoscopic surgery is an alternative to conventional multiport laparoscopy. Single-access laparoscopy using a transumbilical port affords maximum cosmetic benefits because the surgical incision is hidden in the umbilicus. The advantages of single-access laparoscopic surgery may include less bleeding, infection, and hernia formation and better cosmetic outcome and less pain. The disadvantages and limitations include longer surgery time, difficulty in learning the technique, and the need for specialized instruments. Ongoing refinement of the surgical technique and instrumentation is likely to expand its role in gynecologic surgery in the future. We perform single-incision total laparoscopic hysterectomy using three ports in the single transumbilical incision.

Single-port access laparoscopic hysterectomy: A new dimension of minimally invasive surgery

The fundamental idea is to have all of the laparoscopic working ports entering the abdominal wall through the same incision. Single-incision laparoscopic surgery is an alternative to conventional multiport laparoscopy. Single-access laparoscopy using a transumbilical port affords maximum cosmetic benefits because the surgical incision is hidden in the umbilicus and reduces morbidity of minimally invasive surgery. The advantages of single-access laparoscopic surgery may include less bleeding, infection, and hernia formation and better cosmetic outcome and less pain. The disadvantages and limitations include longer surgery time, difficulty in learning the technique, and the need for specialized instruments. This review summarizes the history of SPAL hysterectomy (single-port access laparoscopy), and emphasizes nomenclature, surgical technique, instrumentation, and perioperative outcomes. Specific gynecological applications of single-port hysterectomy to date are summarized. Using the PubMed database, the English-language literature was reviewed for the past 40 years. Keyword searches included scarless, scar free, single-port/trocar/incision, single-port access laparoscopic hysterectomy. Within the bibliography of selected references, additional sources were retrieved. The purpose of the present article was to review the development and current status of SPAL hysterectomy and highlight important advances associated with this innovative approach.

Instrumentation in single-access laparoscopic surgery

Single-access laparoscopic surgery is gaining wide acceptance from surgeons. Multiple instruments and the scope are inserted in a restricted area, specifically a small incision. However, the ports, instrument handles, light guide, and camera head tend to clash outside the abdomen. The rule of triangular formation is violated, causing problems that do not occur in standard laparoscopic surgery. To cope with these issues, progress has been made in the design of scopes, instruments and access devices. The aim of this article is to provide an overview of these new methods and tools, so that single-access laparoscopic surgery becomes safer for patients and less demanding for surgeons.

Single Access Laparoscopic Ileocecal Resection in Complicated Crohn’s Disease

Laparoscopic approach to Crohn’s disease has gained good acceptance in selected, high-volume centers. Natural orifice transluminal endoscopic surgery and single access laparoscopic surgery are, at the moment, the latest frontier of minimally invasive surgery. The single laparoscopic access offers excellent cosmetic results (the umbilicus will hide a surgical scar) and may be associated with decreased postoperative pain, shortened postoperative hospitalization, and retains the ability to be converted to standard multiport laparoscopic surgery if needed. It allows to perform surgical procedure with standard surgical instruments although the complexity of the procedure may increase because of the reduced possibility of triangulation. We hereby report the first case of complicated Crohn’s disease approached with this new technique at our institution last September 2009.

Single access laparoscopic surgery: Complementary or alternative to NOTES?

In recent years, single access laparoscopic surgery (SALS) and natural orifice translumenal endoscopic surgery (NOTES) have gained interest from both clinical and industrial point of view, with the increased development of different laparoscopic instruments, production of various access ports, and improvement of operative endoscopes. The main advantages stimulating these two approaches are the cosmetic result, the rapid recovery of the patient, and the reduced need for pain killers. SALS and NOTES are in part complementary and in part alternative techniques. Currently, SALS is much simpler and technically easier than NOTES.

Single-Access Laparoscopic Sigmoidectomy as Definitive Surgical Management of Prior Diverticulitis in a Human Patient

Single-access laparoscopic surgery should offer minimal scarring without compromising surgical outcome. It is enhanced by both innovative port technology and technical expertise learned by developing natural orifice transluminal endoscopic surgery (NOTES). Sigmoidectomy in a human via a single laparoscopic port. University hospital. Patient A 40-year-old woman with previously documented diverticular abscess. The multichannel single port (Triport; Advanced Surgical Concepts, Wicklow, Ireland) was placed at the umbilicus. The sigmoid was retracted by both intraluminal sigmoidoscopy and magnetic anchoring. Mesenteric dissection between the mid-descending colon and the colorectal junction was carried out close to the colon using a Ligasure Advance (Covidien, Valley lab, Norwalk Connecticut). The stapler anvil was passed retrogradely per ano to lie within the descending colon. A linear stapler effected proximal and distal sigmoidal transection. Magnetic attraction then delivered the in situ anvil pike into a colotomy placed adjacent to the proximal staple line. After its position was secured with an endoloop, the pike was mated with its stapler head positioned in the rectal stump. This allowed creation of a double-stapled colorectal anastomosis 10 cm from the anal verge. Specimen retrieval was performed via the umbilical port site. Extent of scarring, occurrence of surgical complications, technical adequacy, and clinical outcome. No intraoperative complications occurred during the 90-minute procedure. A total of 40 cm of sigmoid was resected. The patient convalesced without complication and went home 4 days after surgery. At the 1-month review, she was fully recovered and her single umbilical scar was well healed. With advancing surgical technology and technique, truly minimally invasive surgical procedures are feasible. Understanding of NOTES can therefore extend beyond its experimental application into contemporary surgical practice.