Laparosocopic Appendectomy, Cost-Effectiveness of Three Different Techniques Used to Close the Appendix Stump

Is LigaSure Alone Sufficient for the Closure of the Appendix Stump?

PURPOSES

Closure of the appendix stump is necessary for laparoscopic appendectomy. Problems that occur during the appendix stump closure can cause severe morbidity. Several methods of stump closure have been described. This study aimed to investigate the adequacy of LigaSure alone in closing the appendix stump.

METHODS

Patients who were operated on with the diagnosis of acute appendicitis between October 2021 and January 2022 were evaluated retrospectively. The patients were divided into two groups according to the closure technique of the appendix stump hemoclip(group I) and LigaSure only(group II). In addition, demographic data (age, gender), body mass index (BMI), presence of comorbid disease, perioperative appendicitis classification, operation time, postoperative hospital stay, radiological and pathological appendix size of the patients included in the study were recorded. Clavien Dindo was used for postoperative complication assessment.

RESULT

The study included 77 patients. 48(62.3%) of the patients were in group I, and 29(37.7%) were in group II. There was no statistical difference between the groups regarding age, gender distribution, BMI, presence of comorbid disease (P > .05). The operation time of group I was longer than group II (P < .001). There was no difference between the groups in terms of both radiological and pathological appendix size. There was no statistical difference between the groups regarding postoperative complications and severity of complications (P = .76, P = .99, respectively).

CONCLUSION

Appendiceal stump closure can be performed with Ligasure, but it should be noted that this procedure can be performed on selected patients, as in the study group, not on all patients.

Safety and Cost Savings Using Polymeric Clips in Appendectomies in the Pediatric Population: Single-center Experience

INTRODUCTION

Although laparoscopic appendectomy is standard management for appendicitis, management of the appendiceal stump remains debated. Even though most surgeons can agree on the safety and effectiveness of various closure methods for the appendiceal stump, such as the surgical stapler (SS) or the Endoloop, the cost of these methods should also be considered. A relatively new alternative method, the polymeric clips (PC), has been gaining acceptance in the surgical community as it has repeatedly proven to be as safe as other methods, while being significantly cheaper.

METHODS

For the period of January 2019 to December 2021, we performed a retrospective chart review of a single surgeon's laparoscopic appendectomies in children 18 years or younger for acute, non-complicated appendicitis and grouped the cases by appendiceal stump management (SS or PC). Demographics collected included gender, age, BMI percentile, race, and ASA score. Surgical variables included length of stay, surgical time, and anesthesia time. Outcomes were number of intra- and post-operative complications, reoperations, ER visits within 30 days, and total implant cost. Mann-Whitney U tests were performed to test for differences between SS and PC groups in surgical variables. Chi-square or Fisher's exact tests were performed to test differences in demographics and outcome variables.

RESULTS

There were 107 patients identified. The PC group represented 16% (n = 17) of our study population. The PC group was significantly younger than the SS group at 10 years (2.8) vs 12 years (3.5) p = 0.04. No differences were observed in length of stay and anesthesia time between the two groups. However, a significantly longer length of surgery was observed in the PC group at 33.5 min [30.0-43.3] when compared to the SS group at 28.0 min [23.0-36.0] (p = 0.003). No significant differences were seen in post-op complications, post-op ED visits and reoperations within 30 days. The median total implant cost of the PC closure method was significantly lower than the SS method ($35.36 vs. $375.67 p = <0.001).

CONCLUSION

There were no significant differences in clinical outcomes. However, the significant difference in the implant cost between the 2 methods could favor the use of PC for selected cases. The increase in length of surgery can be attributed to the learning curve associated with a new device.

LEVEL OF EVIDENCE: 3

A randomized clinical trial of technical modifications of appendix stump closure during laparoscopic appendectomy for uncomplicated acute appendicitis

Background

Closure of the appendix stump presents the most critical part of laparoscopic appendectomy. The aim of the present study was to compare the medical outcomes and cost analysis of laparoscopic appendectomy with respect to the different methods of stump closure.

Methods

This was a prospective randomized clinical trial conducted in a single institution (University Hospital Ostrava) within a 2-year study period. All included patients were randomized into one of three trial arms (endoloop, hem-o-lok clips or endostapler).

Results

In total, 180 patients (60 patients in each arm) were enrolled into the study. The mean length of hospital stay (3.6 ± 1.7 days) was comparable in all study arms. The shortest operative time was noted in the hem-o-lok subgroup of patients (37.9 ± 12.5 min). Superficial surgical site infection was detected in 4.4% of study patients; deep surgical site infection was noted in 1.7% of the patients. The frequency of surgical site infections was comparable in all study arms (p = 0.7173). The mean direct costs of laparoscopic appendectomy were significantly the lowest in the hem-o-lok subgroup of patients. Laparoscopic appendectomy is not a profit-making procedure in our institution (mean profit of made from the study patients was—104.3 ± 579.2 Euro). Closure of the appendix stump by means of endostapler presents the most expensive and the highest loss-incurring technique (p = 0.0072).

Conclusions

The present study indicates that all technical modifications of appendix stump closure are comparable with regards to postoperative complications. The stapler technique is significantly the most expensive. We concluded that hem-o-lok clips have the potential for becoming the preferred method of securing the appendix base during laparoscopic appendectomy. Trial registration NCT03750032 (http://www.clinicaltrials.gov).

Comparison of stump closure techniques during laparoscopic appendectomies for complicated appendicitis - results from Pol-LA (Polish laparoscopic appendectomy) multicenter large cohort study

Background: In general, the three main options for stump closure in laparoscopic appendectomy are clips, endoscopic staplers and endoloops. However, there is no gold standard, especially regarding complicated acute appendicitis which is generally associated with worse outcomes.Objectives: We aimed to assess the outcomes of different stump closure techniques during laparoscopic appendectomies for complicated appendicitisMethods: Our multicenter observational study of 18 surgical units assessed the outcomes of 1269 laparoscopic appendectomies for complicated appendicitis that used the three main stump closure techniques: clips, staplers and endoloops. Groups were compared in terms of peri- and postoperative outcomes.Results: Staplers were superior in terms of overall morbidity (9.79 vs. 3.29% vs. 7.41%, p = .017) and length of stay (4 vs. 3 vs. 4 days, p < .001) respectively for clips, staplers and endoloops. However, no differences in major complication rates, postoperative intraabdominal abscess formation, reintervention rates and readmission rates were found.Conclusion: Although our results show some clinical benefits of staplers for appendix stump closure, they are based on a non-randomized group of patients and are therefore prone to selection bias. Further well-designed trials taking into consideration not only the clinical benefits, but also, the economic aspects of the surgical treatment of complicated acute appendicitis are needed to confirm our results.

Cost Effectiveness of Different Methods of Appendiceal Stump Closure during Laparoscopic Appendectomy

There is no standard method for closure of an appendiceal stump during laparoscopic appendectomy. This study compares stump closure using a stapler with closure using an Endoloop ligature. The charts of all patients who underwent laparoscopic appendectomy at a single tertiary care center over a two-year period were reviewed for demographics, comobidities, operative details and costs, and outcomes. There were 325 patients who underwent a laparoscopic appendectomy. The majority, 250 (77%), underwent stump closure with a stapler. They were equivalent in demographics and postoperative complication rates. Cases using an Endoloop were slightly faster in terms of procedure time and room time, and less expensive in terms of operative supply cost. The price difference is not explained by time saved in the operating room and more likely by the equipment price.

Endoloop versus endostapler: what is the best option for appendiceal stump closure in children with complicated appendicitis? Results of a multicentric international survey

BACKGROUND

There is a limited and conflicting evidence about the most appropriate method for appendiceal stump closure during laparoscopic appendectomy (LA). We aimed to compare endoloop (EL) versus endostapler (ES) for stump closure during LA for complicated perforated appendicitis in children.

METHODS

We retrospectively reviewed the records of 708 patients (463 boys and 245 girls with an average age of 9.8 years) who underwent LA for complicated appendicitis in 5 international centers of Pediatric Surgery over a 5-years period (January 2011-December 2016). The appendix was perforated with localized peritonitis in 470 cases and diffuse peritonitis in 238 patients. EL was used in 374 cases (G1), whereas ES was adopted in 334 cases (G2).

RESULTS

No intra-operative complication occurred in both groups but 5 conversions to open surgery were reported in G1 (1.3%) and 4 in G2 (1.1%) (OR 1.1; 95% CI 0.30-4.19). Use of EL was significantly associated with higher incidence of intra-abdominal abscess (OR 1.36; 95% CI 0.84-2.18), postoperative ileus (OR 3.61; 95% CI 0.76-17.11), and re-operations/readmissions (OR 6.46; 95% CI 1.46-28.62) compared to ES. The average cost of supplies for LA was significantly higher in G2 (€ 915.60) compared to G1 (€ 578.36) (p = 0.0001). The average cost of re-operations/readmissions was significantly higher in G1 (€ 4.091,39) compared to G2 (€ 2.127,88) (p = 0.0001) (OR 1.72; 95% CI 1.47-2.01).

CONCLUSIONS

Our study is the first in the pediatric population to demonstrate that the method used for appendiceal stump closure may influence the outcome of LA in complicated appendicitis. Although ES is more expensive compared to EL, our results demonstrated that appendix stump closure should be performed using ES rather than EL in complicated perforated appendicitis since its use was associated with a lower incidence of postoperative intra-abdominal abscess and postoperative ileus and lower re-operations and readmissions rates and costs.

Incidental appendectomy during robotic laparoscopic prostatectomy-safe and worth to perform?

PURPOSE

The purpose of this study is to investigate the safety and patients' benefit of incidental appendectomy during robot-assisted laparoscopic radical prostatectomy (RALRP).

METHODS

Fifty-three patients, who had incidental appendectomy during RALRP between January 2012 and March 2014, were enrolled to this study. To evaluate the safety of the procedure, following parameters were evaluated: patient age, duration of surgery, perioperative complications (classified by Clavien-Dindo), time to bowel movement, and length of hospital stay. Furthermore, intraoperative visual appearance, location, and histopathological evaluation of the appendix were evaluated. Data was analyzed by descriptive statistics.

RESULTS

Mean age of patients was 61 years, the average hospital stay 5 days. No perioperative complications occurred. The appendix was unsuspicious in 39 patients (73.6%); 14 patients (26.4%) had macroscopically signs of inflammation. Of the 53 resected appendixes, the histopathological evaluation showed 33 (62.2%) inconspicuous appendices, 11 (20.8%) post-inflammatory changes, 4 (7.5%) with chronical signs of inflammation and 3 (5.7%) with signs of acute inflammation. In 2 patients (3.8%), low-grade mucinous neoplasms were found in the specimens.

CONCLUSIONS

Incidental appendectomy during RALRP is a feasible procedure. With regard to inflammation and neoplastic changes, incidental appendectomy can be considered for patients scheduled for robot-assisted prostate surgery.

Optimal stump management in laparoscopic appendectomy: A network meta-analysis by the Minimally Invasive Surgery Synthesis of Interventions and Outcomes Network

BACKGROUND

Laparoscopic appendectomy is the predominant method of treatment of acute appendicitis. There is insufficient evidence on the most effective management of the appendix stump. The aim of this study was to investigate the relative effectiveness and provide a treatment ranking of different options for securing the appendix stump.

METHODS

Electronic databases were searched to identify randomized controlled trials comparing ligation methods of the appendix. The primary outcomes were organ/space infection and superficial operative site infection. We performed a network meta-analysis and estimated the pairwise relative treatment effects of the competing interventions using the odds ratio and its 95% confidence interval. We obtained a hierarchy of the competing interventions using rankograms and the surface under the cumulative ranking curve.

RESULTS

Forty-three randomized controlled trials were eligible and provided data for >5,000 patients. Suture ligation seemed to be the most effective treatment strategy, in terms of both organ/space infection and superficial operative site infection. Statistical significance was reached for the comparisons of clip versus endoloop (odds ratio 0.56, 95% confidence interval, 0.32-0.96) for organ/space infection; and suture versus clip (odds ratio 0.20, 95% confidence interval 0.08-0.55) and clip versus endoloop (odds ratio 2.22, 95% confidence interval 1.56-3.13) for superficial operative site infection. The network was informed primarily by indirect treatment comparisons.

CONCLUSION

The use of suture ligation of the appendix in laparoscopic appendectomy seems to be superior to other methods for the composite parameters of organ/space and superficial operative site infection.

Laparoscopic appendectomy for acute appendicitis: How to discourage surgeons using inadequate therapy

Acute appendicitis (AA) develops in a progressive and irreversible manner, even if the clinical course of AA can be temporarily modified by intentional medications. Reliable and real-time diagnosis of AA can be made based on findings of the white blood cell count and enhanced computed tomography. Emergent laparoscopic appendectomy (LA) is considered as the first therapeutic choice for AA. Interval/delayed appendectomy at 6-12 wk after disease onset is considered as unsafe with a high recurrent rate during the waiting time. However, this technique may have some advantages for avoiding unnecessary extended resection in patients with an appendiceal mass. Non-operative management of AA may be tolerated only in children. Postoperative complications increase according to the patient’s factors, and temporal avoidance of emergent general anesthesia may be beneficial for high-risk patients. The surgeon’s skill and cooperation of the hospital are important for successful LA. Delaying appendectomy for less than 24 h from diagnosis is safe. Additionally, a semi-elective manner (i.e., LA within 24 h after onset of symptoms) may be paradoxically acceptable, according to the factors of the patient, physician, and institution. Prompt LA is mandatory for AA. Fortunately, the Japanese government uses a universal health insurance system, which covers LA.

Laparoscopic appendectomy: Hem-o-lok versus Endoloop in stump closure

There are several techniques described to close the appendicular stump during laparoscopic appendectomy. The aim of this study was to investigate the safety and usefulness of the Hem-o-lok clip for the closure of appendicular stump, comparing these data with those concerning the endo-loop. We conducted a retrospective study that compared two groups of patients who underwent laparoscopic appendectomy from 2010 to 2015 at our institution. We used the Endoloop to close the stump in the first group (group I) and the Hem-o-lok in the second group (group II). We reviewed patient's data including: complications, operative time, length of stay, costs. There were 121 patients in group I and 138 patients in group II. The mean operative times were 40.5 min in group I and 36.4 min in the group II. No intraoperative complications and no mortality were observed in either group. The mean postoperative length of hospital stay was similar for both groups. There was no rehospitalization after discharge. The complication rate did not reach statistical significance between the groups. The cost of the procedure using the Hem-o-lok has been lower than using the Endoloop. Both the Endoloop and Hem-o-lok are safe for the closure of the appendicular stump. Hem-o-lok appears to be superior than Endoloop in terms of easeness of use and cheapness, maintaining the same safety.