Learning curve of laparoscopic appendectomy in a low-resource setting: a cumulative sum analysis of operative length.

BACKGROUND: Cumulative sum (CUSUM) analysis is a valuable tool for quantifying the learning curve of surgical teams by detecting significant changes in operative length. However, there is limited research evaluating the learning curve of laparoscopic techniques in low-resource settings. The objective of this study is to evaluate the learning curve for laparoscopic appendectomy within a single surgical team in Senegal. METHODS: This was a single-center prospective study conducted from May 1, 2018, to August 31, 2023 of patients who underwent laparoscopic appendectomy at a tertiary care institution in West Africa. The AAST classification was used to describe the severity of appendicitis. Parameters studied included age, sex, operative length, conversion rate, and postoperative outcomes. To quantify the learning curve, CUSUM analysis of operative length was performed. RESULTS: A total of 81 patients were included. The mean age was 26.7 years (range 11-70 years) with a sex ratio of 1.9. Pre-operative severity according to AAST was Grade I in 75.4% (n = 61), Grade III in 7.4% (n = 6), Grade IV in 6.1% (n = 5), and Grade V in 11.1% (n = 9). Conversion occurred in 5 cases (6.1%). The average operative length was 76.8 min (range 30-180 min) and the average length of hospitalization was 2.7 days (range 1-13 days). Morbidity was observed in 3.7% (n = 3) and there were no deaths. The CUSUM analysis showed that a steady operative length was achieved after 28 procedures, with decreasing operative lengths thereafter. CONCLUSION: Surgeons in our setting overcame the learning curve for laparoscopic appendectomy after performing 28 procedures. Moreover, laparoscopic appendectomy is safe and feasible throughout the learning curve. CUSUM analysis should be applied to other laparoscopic procedures and individualized by surgical teams to improve surgical performance and patient outcomes in low-resource settings.

Factors associated with conversion in laparoscopic surgery in a low-resource setting: a single-center prospective study.

INTRODUCTION: Laparoscopy has a clear patient benefit related to postoperative morbidity but may not be as commonly performed in low-and middle-income countries. The decision to convert to laparotomy can be complex and involve factors related to the surgeon, patient, and procedure. The objective of this work is to analyze the factors associated with conversion in laparoscopic surgery in a low-resource setting. METHODS: This is a single-center prospective study of patients who underwent laparoscopic surgery between May 1, 2018 and October 31, 2021. The parameters studied were age, sex, body mass index (BMI), intraoperative complication (e.g., accidental enterotomy, hemorrhage), equipment malfunction (e.g., technical failure of the equipment, break in CO2 supply line), operating time, and conversion rate. RESULTS: A total of 123 laparoscopic surgeries were performed. The average age of patients was 31.2 years (range 11-75). The procedures performed included appendix procedures (48%), followed by gynecological (18.7%), gallbladder (14.6%), digestive (10.56%), and abdominal procedures (4%). The average length of hospitalization was 3 days (range 1-16). Conversion to laparotomy was reported in 8.9% (n = 11) cases. Equipment malfunction was encountered in 9.8% (n = 12) cases. Surgical complications were noted in 11 cases (8.9%). Risk factors for conversion were shown to be BMI > 25 kg/m2 (OR 4.6; p = 0.034), intraoperative complications (OR 12.6; p = 0.028), and equipment malfunction (OR 9.4; p = 0.002). CONCLUSION: A better understanding of the underlying factors associated with high conversion rates, such as overweight/obesity, intraoperative complications, and equipment failure, is the first step toward surgical planning to reduce postoperative morbidity in low-resource settings.

Evolution of laparoscopic surgery in a sub-Saharan African country: a 30-year literature review in Senegal.

INTRODUCTION: The advent of laparoscopy has significantly reduced the morbidity associated with the majority of abdominal surgeries. In Senegal, the first studies evaluating this technique were published in the 1980s. The objective of this systematic review is to assess the evolution of laparoscopy research in Senegal. METHODS: A search of PubMed and Google Scholar was carried out without limit of publication date. The keywords used were "senegal" AND "laparoscop*". Duplicates were removed, and remaining articles were assessed for selection criteria. We included all articles about laparoscopy published in Senegal. The parameters studied in each included article were the place and year of study, average age, sex ratio, assessed indications and results. RESULTS: 41 Studies published between 1984 and 2021 met selection criteria. The average age of patients was 33 years (range 4.7-63). The sex ratio was 0.33. The main indications for laparoscopy according to the studies were: benign gastrointestinal disorders in 11 studies (26.8%), abdominal emergencies in 9 studies (22%), gallbladder surgery in 5 studies (12.2%), benign gynecological pathology in 6 studies (14.6%), malignant gynecological pathology in 2 studies (4.9%), diagnostic laparoscopy in 2 studies (4.9%), groin hernia repair in 2 studies (4.9%) and testicular pathology in 1 study (2.4%). Overall mortality was estimated at 0.9% (95% CI 0.6-1.3) and overall morbidity for all complications was estimated at 5% (95% CI 3.4-6.9). CONCLUSIONS: This systematic review showed a predominance of the laparoscopy publications from the capital in Dakar with favorable outcomes. This technique should be popularized in the different regions of the country and its indications expanded.

[The surgical treatment results of ulcerous pyloro-duodenal stenosis: about 160 cases]. / Resultats du traitement chirurgical de la stenose ulcereuse pyloroduodenale: a propos de 160 cas.

OBJECTIVE: To evaluate the outcomes of the surgical treatment of ulcerous pyloro duodenal stenosis at Dakar. PATIENTS AND METHODS: We carried out a retrospective study including 160 medical records of patients presenting an ulcerous pyloroduodenal stenosis from January 2000 to December 2006. After a mean follow up of 16 months, surgical outcomes were evaluated including mortality and morbidity. The functional results were evaluated using Visick Classification. RESULTS: The mean age of our patients was 42 years and 6 months (range: 17-20 years). Our population included 126 men (78,7%) and 34 women (21,3%). Oeso-gastro-duodenal fibroscopy was performed in 136 patients (85%) whereas barium meal was carried out in 82 patients (51,25%). Surgical approach was laparoscopy in 132 cases (82%) and laparotomy in 28 cases (18%). All patients underwent a troncular vagotomy. In addition a gastroentero anastomosis was performed in 89,2% of cases, a pyloroplasty in 10% of cases and an antrectomy in 0,6% of cases. Mortality rate was 0%. The morbidity rate was 10% including parietal suppuration, diarrhoea and hiccups. Functional outcomes were as follows: Visick I in 91% of cases, Visick II in 6,3% of cases and Visick III in 2,7%. CONCLUSION: Ulcerous pyloro duodenal stenosis is a frequent complication of ulcer disease. Its treatment is surgical based on a vagotomy with gastric discharge. The outcomes are satisfactory in our context.