Long-term incisional hernia rate after single-incision laparoscopic cholecystectomy is significantly higher than that after standard three-port laparoscopy: a cohort study

Robotic versus laparoscopic general surgery in the emergency setting: a systematic review

Robot-assisted general surgery, an advanced technology in minimally invasive procedures, is increasingly employed in elective general surgery, showing benefits over laparoscopy in specific cases. Although laparoscopy remains a standard approach for common acute abdominal conditions, the role of robotic surgery in emergency general surgery remains uncertain. This systematic review aims to compare outcomes in acute general surgery settings for robotic versus laparoscopic surgeries. A PRISMA-compliant systematic search across MEDLINE, EMBASE, Science Citation Index Expanded, and the Cochrane Library was conducted. The literature review focused on articles comparing perioperative outcomes of emergency general surgery managed laparoscopically versus robot-assisted. A descriptive analysis was performed, and outcome measures were recorded. Six articles, involving 1,063 patients, compared outcomes of robotic and laparoscopic procedures. Two articles covered cholecystectomies, while the others addressed ileocaecal resection, subtotal colectomy, hiatal hernia and repair of perforated gastrojejunal ulcers. The level of evidence was low. Laparoscopic bowel resection in patients with inflammatory bowel disease (IBD) had higher complications; no significant differences were found in complications for other operations. Operative time showed no differences for cholecystectomies, but robotic approaches took longer for other procedures. Robotic cases had shorter hospital length of stay, although the associated costs were significantly higher. Perioperative outcomes for emergency robotic surgery in selected general surgery conditions are comparable to laparoscopic surgery. However, recommending robotic surgery in the acute setting necessitates a well-powered large population study for stronger evidence.

Predictors of acute incisional hernia incarceration at initial hernia diagnosis on computed tomography

BACKGROUND

Acute incisional hernia incarceration is associated with high morbidity and mortality yet there is little evidence to guide which patients will benefit most from prophylactic repair. We explored baseline computed tomography (CT) characteristics associated with incarceration.

METHODS

A case-control study design was utilized to explore adults (≥18 years) diagnosed with an incisional hernia between 2010 and 2017 at a single institution with a 1-year minimum follow-up. Computed tomography imaging at the time of initial hernia diagnosis was examined. Following propensity score matching for baseline characteristics, multivariable logistic regression was performed to identify independent predictors associated with acute incarceration.

RESULTS

A total of 532 patients (27.26% male, mean 61.55 years) were examined, of whom 238 experienced an acute incarceration. Between two well-matched cohorts with and without incarceration, the presence of small bowel in the hernia sac (odds ratio [OR], 7.50; 95% confidence interval [CI], 3.35-16.38), increasing sac height (OR, 1.34; 95% CI, 1.10-1.64), more acute hernia angle (OR, 0.98 per degree; 95% CI, 0.97-0.99), decreased fascial defect width (OR, 0.68; 95% CI, 0.58-0.81), and greater outer abdominal fat (OR, 1.28; 95% CI, 1.02-1.60) were associated with acute incarceration. Using threshold analysis, a hernia angle of <91 degrees and a sac height of >3.25 cm were associated with increased incarceration risk.

CONCLUSION

Computed tomography features present at the time of hernia diagnosis provide insight into later acute incarceration risk. Improved understanding of acute incisional hernia incarceration can guide selection for prophylactic repair and thereby may mitigate the excess morbidity associated with incarceration.

LEVEL OF EVIDENCE

Prognostic and Epidemiological; Level III.

Lower abdominal approach in laparoscopic cholecystectomy: A propensity score-matching analysis and prospective cohort study

BACKGROUND

Classic laparoscopic cholecystectomy) using multiple ports is a widely used method with excellent surgical outcomes. However, the resulting wounds do not meet the cosmetic needs of patients. Therefore, this study aimed to find a new minimally invasive surgical method for invisible wounds while maintaining surgical safety through a new port site.

METHODS

In this prospective cohort study, we used propensity score matching analysis to evaluate the perioperative outcomes of multiport laparoscopic cholecystectomy using articulating devices with the lower abdominal approach. We performed a propensity score matching analysis of prospectively maintained data from 228 patients who underwent classic laparoscopic cholecystectomy using straight instruments and laparoscopic cholecystectomy with a lower abdominal approach using articulating devices between January and October 2022. A single surgeon performed all operations included in the study. We evaluated several perioperative outcomes.

RESULTS

No differences were found in potential confounding factors, such as sex, age, admission type, previous abdominal surgery, and medical comorbidities, between the 2 groups after propensity score matching. In the classic laparoscopic cholecystectomy group, the mean operation time was shorter (43.73 ± 23.71 vs 50.60 ± 9.75 min; P < .04). No significant difference was noted in the 2 groups' numerical rating scale scores for pain, body mass index, and incidence of postoperative complications. The mean length of hospital stay was longer for patients who underwent classic laparoscopic cholecystectomy (4.27 vs 2.07 days; P = .064). The lower abdominal laparoscopic cholecystectomy group had delayed defecation after surgery.

CONCLUSION

Regarding surgical outcomes and minimal invasiveness, lower abdominal laparoscopic cholecystectomy is a feasible cholecystectomy method.

Cost-effective scarless cholecystectomy using a modified endoscopic minimally invasive reduced appliance technique (Emirate)

Abstract

The current gold-standard surgical treatment for symptomatic gallstone disease is the conventional four-port laparoscopic cholecystectomy (CLC). In recent years, however, celebrities and social media have altered people's attitudes regarding surgery. Consequently, CLC has undergone several changes to reduce scarring and improve patient satisfaction. In this case-matched control study, the cost-effectiveness of a modified endoscopic minimally invasive reduced appliance technique (Emirate) that uses less equipment and three 5 mm reusable ports only at precisely specified anatomical sites was compared to CLC.

Methods

Single-center retrospective matched cohort analysis including 140 consecutive patients treated with Emirate laparoscopic cholecystectomy ("ELC-group"), matched 1:1 by sex, indications for surgery, surgeon expertise, and preop bile duct imaging, with 140 patients receiving CLC in the same period of time ("CLC group").

Results

We performed a retrospective case-matched review of 140 patients who had Emirate laparoscopic cholecystectomy for gallstones between January 2019 and December 2022. The groups included 108 females and 32 males with an equal ratio of surgical expertise-115 procedures were performed by consultants and 25 by trainees. In each group, 18 patients had preoperative MRCP or ERCP and 20 had acute cholecystitis as indications for surgery. Preoperative characteristics such as age (39 years in the Emirates group and 38.6 years in the CLC group), BMI (29.3 years in the Emirates group and 30 years in the CLC group), stone size, or liver enzymes showed no statistical difference between the two groups. In both groups, the average hospital stay was 1.5 days, and there was no conversion to open surgery, nor was there any bleeding requiring blood transfusion, bile leakage, stone slippage, bile duct injury, or invasive intervention postoperatively. When compared to the CLC group, the ELC group had significantly faster surgery times (t-test, p = 0.001), lower levels of the bile duct enzyme ALP (p = 0.003), and much lower costs (t-test, p = 0.0001).

Conclusion

The Emirate laparoscopic cholecystectomy method is a safe alternative to the traditional four-port laparoscopic cholecystectomy that is also much faster and less expensive.

Laparoscopic Single-Incision Triangulated Umbilical Surgery Adrenalectomy for Large (>5 cm) Tumors of the Adrenal Gland: Initial Experience with 16 Cases

Background and ObjectivesLaparoscopic single-incision triangulated umbilical surgery (SITUS), which enables the extraction of intraabdominal specimens through a single umbilical incision, has yet to be used to perform adrenalectomy. We have modified SITUS to enable extraction of large (>5 cm) adrenal masses with optimal cosmetic outcomes and investigated efficacy and safety. Methods. In this retrospective study, we analyzed data of 16 patients with adrenal tumors >5 cm who had undergone adrenalectomy by SITUS between October 2015 and April 2018. Two C-shaped incisions were made around the umbilicus and sutured centripetally. After extracting the specimen, we evaluated these patients' operative/postoperative data. Results. SITUS was performed in all 16 patients without conversion to laparoscopic or open surgery. The mean operation time was 75.31 ± 21.54 min (intraperitoneal time 41.94 ± 17.57 min; incision suturing time 33.38 ± 6.34 min). The estimated median blood loss was 57.5 mL (range 30–610 mL). Drainage time and duration of hospital stay were 55.69 ± 12.92 h and 3.94 ± 0.90 d, respectively. After surgery, all incisions were hidden under the umbilicus. Three patients developed keloid diathesis, resulting in enlargement of their scars. Conclusions. SITUS is a safe and feasible procedure for removing large adrenal tumors. In addition to its cosmetic advantages, SITUS facilitates functional recovery, particularly in patients with large adrenal tumors.

Long-term mortality and intestinal obstruction after laparoscopic cholecystectomy: A systematic review and meta-analysis

BACKGROUND

Long-term outcomes of cholecystectomy are largely unknown though it is a common procedure in general surgery. We aimed to investigate the long-term mortality rate and incidence of intestinal obstruction after laparoscopic cholecystectomy.

MATERIALS AND METHODS

This systematic review and meta-analysis was reported according to the PRISMA 2020 and AMSTAR guidelines. A protocol was registered on PROSPERO (CRD42020178906). The databases PubMed, EMBASE, and Cochrane CENTRAL were last searched on February 9, 2022 for original studies on long-term complications with n > 40 and follow-up ≥ 6 months. Outcomes were long-term mortality and incidence of intestinal obstruction, and meta-analyses were conducted. Risk of bias was assessed with Newcastle-Ottawa Scale and Cochrane "Risk of bias"-tool according to study design.

RESULTS

We included 41 studies that reported long-term follow-up on 1,000,534 patients. Of these, 38 studies reported on mortality (514,242 patients) that ranged from 0 to 32%. Meta-analysis estimated a long-term mortality rate of 2.0% (95% CI 1.7-2.3%) after laparoscopic cholecystectomy. Five studies including 486,292 patients reported on intestinal obstruction that ranged from 0 to 6%. Meta-analysis estimated a long-term rate of intestinal obstruction of 1.3% (95% CI 0.8-1.8%).

CONCLUSION

Long-term mortality after laparoscopic cholecystectomy was 2%. The incidence of long-term intestinal obstruction after laparoscopic cholecystectomy was 1.3%.

Single-Incision Pediatric Laparoscopic Surgery: Surgical Outcomes, Feasibility Indication, and the Systematic Review

Background: Single-incision laparoscopic surgery (SILs) has reported the evidence in basic and advanced pediatric laparoscopy. The objective was to review the feasibility and outcomes between basic and advanced procedures of the conventional laparoscopic surgery (CLs) and the SILs at our institute, and to compare the results with the published studies in a systematic review and meta-analysis. Patients and Methods: A retrospective study was conducted from January 2017 to March 2020. Demographic data, operations, conversion rate, and complications were collected and analyzed. The MEDLINE and PubMed were searched in relation to the pediatric SILs and the pediatric CLs in the published series from 1985 to 2021. We combined our retrospective study with a systematic review for meta-analysis. Results: Two hundred twenty-seven patients underwent pediatric laparoscopic surgery during the study period. The procedures included 199 (87.7%) for basic laparoscopy (appendectomy, cholecystectomy, testicular vessel ligation, closure of indirect inguinal hernia, and hydrocele) and 28 (13.3%) for advanced laparoscopy (Meckel diverticulectomy, pull-through operation for Hirschsprung's disease, choledochal cyst excision, and Nissen fundoplication). There was no statistical significance in operative time, length of stay (LOS), conversion rate, recurrence, and complication. The systematic review demonstrated 19 studies and, combined with our present study, produced 2865 patients for analysis. The meta-analysis reported increased LOS in the SILs group in cholecystectomy (mean difference [MD] 0.23 day, 95% confidence intervals [CI] 0.02-0.43 day, P = .03 and I² = 0%) and choledochal cyst excision (MD 0.18 day, 95% CI 0.02-0.33 day, P = .03 and I² = 0%). There was no statistical difference in operative time, LOS, conversion, and complication in other procedures. Conclusion: The SILs is a feasible indication and safe for surgical pediatric laparoscopy including basic to advanced procedure laparoscopy. It is demonstrated that there were no statistical differences in the operative time, LOS, and the complication. However, LOS in some procedures seems to be different due to the complexity and guideline.

Evaluation of Closure Technique on Incidence of Incisional Hernia Following Single Port Laparoscopy in Gynecologic Oncology Surgery

STUDY OBJECTIVE

To evaluate incidence and risk factors for incisional hernia in women undergoing single-port laparoscopy (SPL) for gynecologic oncology indications with a standardized fascia closure (SC) technique versus historical controls (HC).

DESIGN

Retrospective cohort study.

SETTING

Single academic institution.

PATIENTS

Women who underwent SPL from 6/1/2017-12/31/2019 for gynecologic oncology indications with SC were compared to HC who underwent SPL from 1/1/2009-12/31/2015.

INTERVENTIONS

Data was collected for patient demographics, postoperative outcomes, and incisional hernia development. Univariate analysis and multivariable regression models were built for predictors of incisional hernia.

MEASUREMENTS AND MAIN RESULTS

Of 1,163 patients, 242 (20.8%) patients had SC and 921 (79.2%) patients had HC. SC cohort had lower rates of diabetes versus HC (10.3% vs. 15.3%; p = .049) but no differences in hypertension (36.8% vs. 43.0% p = .081) and obesity (42.6% vs. 36.9%, p = .11). 1,123 (96.6%) patients did not undergo conversion to multi-port laparoscopy or laparotomy, of whom 7.2% (n=81) of patients developed an incisional hernia; there was no difference in incisional hernia development for SC with SPL (n= 237) versus HC with SPL (n= 886) (9.7% vs. 6.5%, p = .095). On multivariable analysis, increased BMI (OR 1.06; 95% CI 1.03-1.09, p < .001) and diabetes (OR 2.41; CI 1.34-4.32, p = .003) were associated with incisional hernia, but age (OR 1.00; CI .98-1.02, p = .92), length of surgery (OR 1.00; CI 1.00-1.01, p = .62), and hypertension (OR .89; CI .52-1.53, p = .68) were not. Patients with prior abdominal surgeries (OR 1.92; CI 1.14-3.26, p = .015) and hand-assist surgery (OR 3.17; CI 1.48-6.80, p = .003) were significantly associated with incisional hernia.

CONCLUSION

Implementation of a SC protocol did not decrease rate of incisional hernia versus HC during SPL. Risk of incisional hernia must be considered for SPL planning in patients with complex medical comorbidities and prior abdominal surgery.

Long-Term Outcomes of Single-Incision Distal Gastrectomy Compared with Conventional Laparoscopic Distal Gastrectomy: A Propensity Score-Matched Analysis

BACKGROUND

Single-incision laparoscopic surgery is gaining more attention due to advancements in surgical devices and techniques. Ten years have passed since the first report of single-incision distal gastrectomy. This study aims to analyze the long-term oncological safety of single-incision distal gastrectomy by comparing it with multiport distal gastrectomy.

STUDY DESIGN

Patients diagnosed with gastric cancer who underwent laparoscopic distal gastrectomy from January 2010 to December 2017 were enrolled. Palliative surgery, history of other malignancy, preoperative chemotherapy, and distant metastasis were excluded. The 5-year overall survival and 5-year disease-free survival were set as coprimary endpoints. Operative time, blood loss, postoperative outcome, and risk factors for survival were secondary endpoints. Propensity score matching of 1:1 ratio was performed to adjust for age, sex, body mass index, comorbidities, tumor size, operation history, and clinical stage.

RESULTS

A total of 3,097 patients were enrolled. After propensity score matching, 378 patients were allocated to each group. There was no difference in patient demographics after matching. Operation time was faster (170.8 ± 65.3 minutes vs 147.2 ± 44.1 minutes, p < 0.001), with less blood loss in the single-port group (84.1 ± 87.6 mL vs 34.9 ± 49.9 mL, p < 0.001). Administration of additional intravenous analgesics was less frequent in the single-port group (p = 0.043). There was no difference in long-term survival (5-year overall survival: multiport 94.2%, single-port 95.8%, p = 0.43; 5-year disease-free survival: multiport 94.1%, single-port 95.8%, p = 0.32).

CONCLUSIONS

Single-incision distal gastrectomy is safe and feasible with good long-term outcomes and less use of additional analgesics for patients diagnosed with early gastric cancer.

Incidence and risk factors for umbilical incisional hernia after reduced port colorectal surgery (SIL + 1 additional port)-is an umbilical midline approach really a problem?

PURPOSE

Umbilical midline incisions for single incision- or reduced port laparoscopic surgery are still discussed controversially because of a higher rate of incisional hernia compared to conventional laparoscopic techniques. The aim of this study was to evaluate incidence and risk factors for incisional hernia after reduced port colorectal surgery.

METHODS

A total 241 patients underwent elective reduced port colorectal surgery between 2014 and 2020. Follow-up was achieved through telephone interview or clinical examination. The study collective was examined using univariate and multivariate analysis.

RESULTS

A total of 150 patients with complete follow-up were included into this study. Mean follow-up time was 36 (IQR 24-50) months. The study collective consists of 77 (51.3%) female and 73 (48.7%) male patients with an average BMI of 26 kg/m² (IQR 23-28) and an average age of 61 (± 14). Indication for surgery was diverticulitis in 55 (36.6%) cases, colorectal cancer in 65 (43.3%) patients, and other benign reasons in 30 (20.0%) cases. An incisional hernia was observed 9 times (6.0%). Obesity (OR 5.8, 95% CI 1.5-23.1, p = 0.02) and pre-existent umbilical hernia (OR 161.0, 95% CI 23.1-1124.5, p < 0.01) were significant risk factors for incisional hernia in the univariate analysis. Furthermore, pre-existent hernia is shown to be a risk factor also in multivariate analysis.

CONCLUSION

We could demonstrate that reduced port colorectal surgery using an umbilical single port access is feasible and safe with a low rate of incisional hernia. Obesity and pre-existing umbilical hernia are significant risk factors for incisional hernia.

Trocar-site hernia following laparoscopic salpingo-oophorectomy in a middle-aged Japanese woman: an initial case report after 40 years of experience at a single center and a brief literature review

Background

In gynecology, the number of laparoscopic surgeries performed has increased annually because laparoscopic surgery presents a greater number of advantages from a cosmetic perspective and allows for a less invasive approach than laparotomy. Trocar site hernia (TSH) is a unique complication that causes severe small bowel obstruction and requires emergency surgery. Its use has mainly been reported with respect to gastrointestinal laparoscopy, such as for cholecystectomy. Contrastingly, there have been few reports on gynecologic laparoscopy because common laparoscopic surgeries, such as laparoscopic salpingo-oophorectomy, are considered low risk due to shorter operative times. In this study, we report on a case of a woman who developed a TSH 5 days postoperatively following a minimally invasive laparoscopic surgery that was completed in 34 min.

Case presentation

A 41-year-old woman who had undergone laparoscopic salpingo-oophorectomy 5 days previously presented with the following features of intestinal obstruction: persistent abdominal pain, vomiting, and inability to pass stool or flatus. A computed tomography scan of her abdomen demonstrated a collapsed small bowel loop that was protruding through the lateral 12-mm port. Emergency surgery confirmed the diagnosis of TSH. The herniated bowel loop was gently replaced onto the pelvic floor and the patient did not require bowel resection. After the surgical procedure, the fascial defect at the lateral port site was closed using 2-0 Vicryl sutures. On the tenth postoperative day, the patient was discharged with no symptom recurrence.

Conclusions

The TSH initially presented following laparoscopic salpingo-oophorectomy; however, the patient did not have common risk factors such as obesity, older age, wound infection, diabetes, and prolonged operative time. There was a possibility that the TSH was caused by excessive manipulation during the tissue removal through the lateral 12-mm port. Thereafter, the peritoneum around the lateral 12-mm port was closed to prevent the hernia, although a consensus around the approach to closure of the port site fascia had not yet been reached. This case demonstrated that significant attention should be paid to the possibility of patients developing TSH. This will ensure the prevention of severe problems through early detection and treatment.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12905-021-01528-6.

Long-term follow-up of the incisional hernia rate after single-incision laparoscopic cholecystectomy: a prospective observational study

PURPOSE

To evaluate the long-term occurrence rate of incisional hernias following single-incision laparoscopic cholecystectomy (SILC).

BACKGROUND

Since the 90 s, SILC has emerged as a less invasive alternative to standard laparoscopic cholecystectomy in selected patients. But concerns over port-incisional hernias have not been addressed.

METHODS

Between February 2009 and February 2011, 142 patients referred for gallstones who agreed to undergo SILC were included in a monocenter prospective observational study. All of the procedures were carried out using a single-port access technique. The occurrence rates of incisional hernias were analyzed with the Kaplan-Meier actuarial method. Statistical significance was set at p < .05.

RESULTS

A total of 142 patients with gallbladder pathology were included in the study; 138 of them underwent SILC and 4 were converted to standard multiport cholecystectomy. Twelve patients (8%) were found to have developed a port-site incisional hernia (PSH) by physical examination or by imaging. The Kaplan-Meier curve showed that the rate of PSH development was 83% in the first 2 years after surgery. After 2 years, this risk becomes quite low.

CONCLUSIONS

Our results indicate that the SILC procedure is a safe option for treatment of benign gallbladder diseases for selected patients, albeit with a high incisional hernia rate.

Left paraduodenal hernia treated by single-incision laparoscopic surgery: a case report

Background

Paraduodenal hernia is a rare internal hernia which accounts for only 1% of all intestinal hernias. There have been limited reported cases of paraduodenal hernia treated by laparoscopic surgery. We report a case of left paraduodenal hernia that was successfully treated by single-incision laparoscopic surgery (SILS).

Case presentation

A 17-year-old woman presented with left upper abdominal pain. An abdominal enhanced multi-detector computed tomography demonstrated encapsulated cluster of small bowel loops in the left upper quadrant which passed through the dorsal side of the inferior mesenteric vein, and showed that blood flow of the prolapsed small bowel was preserved. We preoperatively diagnosed left paraduodenal hernia without ischemia or necrosis. We performed elective SILS because she was a young actress training school student and cosmetic benefit was thought to be important. We pulled out the protruded small bowel and closed a defect with a running suture by SILS. The patient was discharged 3 days after the surgery with no complications.

Conclusions

We reported the case of left paraduodenal hernia successfully diagnosed and treated by SILS.

Management of Postcholecystectomy Complications

Cholecystectomy is one of the most common general surgery procedures performed worldwide. Complications include bile duct injury, strictures, bleeding, infection/abscess, retained gallstones, hernias, and postcholecystectomy syndrome. Obtaining a critical view of safety and following the other tenets of the Safe Cholecystectomy Task Force will aid in the prevention of bile duct injury and other morbidity associated with cholecystectomy.

Laparoscopic cholecystectomy with two incisions: an improved, feasible and safe technique with superior cosmetic outcomes

OBJECTIVE

Conventional laparoscopic cholecystectomy (CLC) is usually performed with four incisions. Minimally invasive surgery for gallbladder disease with less pain and smaller scars has become increasingly popular. This study reported a new, two-incision laparoscopic cholecystectomy (TILC) using conventional instruments.

METHODS

In this prospective study, 43 patients were recruited to undergo TILC and were compared with 43 historical cases undergoing CLC. We evaluated operative time, postoperative pain, cosmesis and complications.

RESULTS

There was no significant difference in gender, age, body mass index, bile duct damage, blood loss and postoperative hospital stay between the two groups. The mean operation time was longer with TILC than with CLC, but the difference was not statistically different. Postoperative pain scores were significantly lower with TILC than with CLC. The mean cosmetic satisfaction score was significantly higher with TILC than that with CLC. There was no significant difference in the incidence of complications between the two groups.

CONCLUSION

Our work demonstrates that TILC generates less postoperative pain and significantly improved cosmesis for patients. TILC is a safe and feasible alternative to CLC.

Low long-term incidence of incisional hernia after cholecystectomy: A systematic review with meta-analysis

BACKGROUND

Various surgical approaches are available for cholecystectomy, but their long-term outcomes, such as incidence of incisional hernia, are largely unknown. Our aim was to investigate the long-term incidence of incisional hernia after cholecystectomy for different surgical approaches.

METHODS

This systematic review and meta-analysis was reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A protocol was registered on PROSPERO (CRD42020178906). Three databases were searched for original studies on long-term complications of cholecystectomy with n > 40 and follow-up ≥6 months for incisional hernia. Risk of bias within the studies was assessed using the Newcastle-Ottawa Scale and the Cochrane "risk of bias" tool. Meta-analysis of the incidence of incisional hernia after 6 and 12 months was conducted when possible.

RESULTS

We included 89 studies. Of these, 77 reported on multiport or single-incision laparoscopic cholecystectomy. Twelve studies reported on open cholecystectomy and 4 studies on robotic cholecystectomy. Weighted mean incidence proportion of incisional hernia after multi-port laparoscopic cholecystectomy was 0.3% (95% confidence interval 0-0.6) after 6 months and 0.2% after 12 months (95% confidence interval 0.1-0.3). Weighted mean incidence of incisional hernia 12 months postoperatively was 1.5% (95% confidence interval 0.4-2.6) after open cholecystectomy and 4.5% (95% confidence interval 0.4-8.6) after single-incision laparoscopic cholecystectomy. No meta-analysis could be conducted for robotic cholecystectomy, but incidences ranged from 0% to 16.7%.

CONCLUSION

We found low 1-year incidences of incisional hernia after multiport laparoscopic and open cholecystectomy, whereas risks of incisional hernia were considerably higher after single-incision laparoscopic and robotic cholecystectomy.

The chronological change of indications and outcomes for single-incision laparoscopic cholecystectomy: a Korean multicenter study

BACKGROUND

Although single-incision laparoscopic cholecystectomy (SILC) is a common procedure, the change in its surgical indications and perioperative outcomes has not been analyzed.

METHODS

We collected the clinical data of patients who underwent pure SILC in 9 centers between 2009 and 2018 and compared the perioperative outcomes.

RESULTS

In this period, 6497 patients underwent SILC. Of these, 2583 were for gallbladder (GB) stone (39.7%), 774 were for GB polyp (11.9%), 994 were for chronic cholecystitis (15.3%), and 1492 were for acute cholecystitis (AC) (23%). 162 patients (2.5%) experienced complication, including 20 patients (0.2%) suffering from biliary leakage. The number of patients who underwent SILC for AC increased over time (p = 0.028), leading to an accumulation of experience (27.4 vs 23.7%, p = 0.002). The patients in late period were more likely to have undergone a previous laparotomy (29.5 vs 20.2%, p = 0.006), and to have a shorter operation time (47.0 vs 58.8 min, p < 0.001). Male (odds ratio [OR]; 1.673, 95% confidence interval [CI] 1.090-2.569, p = 0.019) and moderate or severe acute cholecystitis (OR; 2.602, 95% CI 1.677-4.037, p < 0.001) were independent predictive factors for gallbladder perforation during surgery, and open conversion (OR; 5.793, 95% CI 3.130-10.721, p < 0.001) and pathologically proven acute cholecystitis or empyema (OR; 4.107, 95% CI 2.461-6.854, p < 0.001) were related with intraoperative gallbladder perforation CONCLUSION: SILC has expanded indication in late period. In this period, the patients had shorter operation times and a similar rate of severe complications, despite there being more numerous patients with AC.

The First Additional Port During Single-Incision Laparoscopic Cholecystectomy

Background and Objectives:

Single-incision laparoscopic cholecystectomy (SILC) has become increasingly popular. Regarding the difficulties of SILC in acute cholecystitis, additional port insertion is sometimes required. However, appropriate locations for additional port insertion have not been well studied. In the present study, the safety and effectiveness of the first additional port insertion in the epigastric region during SILC was assessed.

Methods:

Additional port insertions were needed in 52 of 113 patients who underwent SILC for acute cholecystitis. The first port was inserted in the epigastric region and the second (if required) was inserted in the right lateral subcostal area. A drainage catheter was positioned through the epigastric port.

Results:

One additional port was inserted in 43 patients and two additional ports were inserted in 9 patients. Mean operation time was 45.0 minutes in the Pure SILC group and 83.3 minutes in Additional Port group. Mean hospital stay was 3.7 days in the Pure SILC group and 5.9 days in Additional Port group. There was no open conversion. Intra-operative (n = 5) and postoperative bile leakages (n = 2) were identified in six patients. Timing of operation after onset of symptoms was significantly greater in the group with bile duct injury than in those without bile duct injury in patients who required additional ports.

Conclusions:

The first additional port in the epigastric area during SILC for acute cholecystitis helps to complete the operation without open conversion. However, the procedure can be performed safely in selective patients with relatively short duration of symptoms.

Trocar-site hernia after gynecological laparoscopic surgery: a 20-year, single-center experience

Background:

Trocar-site hernia (TSH) is a serious complication after laparoscopic procedures. Although it is a rare entity, it can have life-threatening consequences. This study aimed to retrospectively analyze the potential associated factors for TSH following gynecologic laparoscopy and summarize prevention strategies based on our experience.

Methods:

We searched for gynecological laparoscopic surgeries in the medical records system of Peking Union Medical College Hospital (PUMCH) from August 1998 to July 2018 and further sifted through the results for cases involving TSH. All included patients were divided into different groups according to patient characteristics, and the rate of TSH was compared among groups. Moreover, the detailed information of all patients with TSH was recorded and analyzed. Statistical analyses were performed with GraphPad Prism 6.

Results:

The approximate total rate of post-operative TSH among gynecologic laparoscopy procedures performed at PUMCH in the last 20 years was 0.016% (9/55,244). The rate of TSH was significant higher in elder patients (≥60 years old; 3/2686, 0.112%) than in younger patients (<60 years old, 6/52,558; 0.011%, P = 0.008). Moreover, the approximate rate of TSH was significantly higher after single-incision laparoscopic surgery (SILS, 2/534, 0.357%) than conventional laparoscopic surgery (7/54,710, 0.013%, P = 0.003). The average age of patients with TSH was 53.4 years (range, 35.0–79.0 years). Two of the nine patients had late-onset TSH following SILS; the other seven had early-onset TSH following conventional laparoscopy. Five TSH cases occurred at right lateral port sites, and the remaining three occurred at the umbilical port site. All patients underwent repair surgery, and one required small bowel resection.

Conclusion:

Older age and SILS are potential associated factors for TSH development, while reducing excessive manipulation and improving suturing skills, especially at the umbilical trocar site following SILS and the right lateral trocar site, can avoid herniation.

Incidence and Risk Factors of Incisional Hernia After Single-Incision Endoscopic Surgery

Introduction: Abdominal wall complications are one of the most controversial issues regarding single-incision endoscopic surgery. The aim of this study was to analyze the incidence and risk factors of incisional hernia after single-incision endoscopic cholecystectomy. Materials and Methods: An observational retrospective study was performed, on a cohort of patients cholecystectomized laparoscopically through a transumbilical single incision due to gallbladder lithiasis or polyps. Postoperative complications were analyzed, with special interest in the incisional hernia rate, whose results were assessed in the long-term follow-up. Univariate and multivariate analyses were also performed to evaluate possible variables associated with the appearance of incisional hernia. Cumulative sum charts (CUSUM) were used to identify trends in the incisional hernia risk. Results: Some 109 patients were included in the study. With a mean follow-up of nearly 38 months, an incisional hernia incidence of 5.5% was found, with 67% being diagnosed during the first year of follow-up. In the Cox regression analysis, two variables showed an independent association with the emergence of incisional hernia, body mass index (hazard ratio [HR] 1.30; 95% confidence interval [CI 1.053-1.606]; P .015), and wound infection (HR 26.32; [3.186-217.40]; P .002]. CUSUM charts showed a decrease in the risk of incisional hernia after the first 10 cases. Conclusions: Single-incision endoscopic cholecystectomy is associated with a substantially high risk of postoperative incisional hernia (5.5%).