Pull-Through for Hirschsprung's Disease: Insights for Limited-Resource Settings From Mbarara.

INTRODUCTION: In many resource-limited settings, patients with Hirschsprung's Disease (HD) undergo initial diverting colostomy, followed by pull-through, and finally, colostomy closure. This approach allows for decompression of dilated and thickened bowel and improved patient nutritional status. However, this three-stage approach prolongs treatment duration, with significant stoma morbidity, costs, and impact on quality of life. Our aim was to determine whether pull-through for HD can safely be performed with simultaneous stoma closure, reducing treatment approach from three to two stages. METHODS: Children with HD and diverting colostomy were prospectively followed as they underwent pull-through with simultaneous stoma closure. Their in-hospital course and 3-mo outpatient course were assessed for postoperative complications. Patients with total colonic HD, redo pull-through, and residual dilated colon were excluded from the study. RESULTS: Of the 20 children, 17 were male (n = 17, 85%). All patients had rectosigmoid HD. The median weight, age at colostomy formation, and age at pull-through were 11.05 kg (interquartile range [IQR] 10-12.75), 0.9 y (IQR 0.25-2.8), and 2.08 y (IQR 1.28-2.75), respectively. Mean duration with colostomy before pull-through was 1.1 y (standard deviation 1.51). Median hospital length of stay was 6 d (IQR 5-7). Early complications included anastomotic leak (n = 1), perianal skin excoriation (n = 2), surgical site skin infection (n = 3), and fascial dehiscence (n = 1). Longer-term complications included stricture (n = 1, 5%) and enterocolitis (n = 2, 10%). CONCLUSIONS: In this small case series, we have demonstrated that pull-through with simultaneous stoma closure can be safely performed in resource-constrained settings. Further studies are needed to understand the quality of life and economic impact of this change in management for HD patients.

Efforts to improve outcomes among neonates with complex intestinal atresia: a single-center low-income country experience.

PURPOSE: Intestinal obstruction caused by intestinal atresia is a surgical emergency in newborns. Outcomes for the jejunal ileal atresia (JIA), the most common subtype of atresia in low-income countries (LIC), are poor. We sought to assess the impact of utilizing the Bishop-Koop (BK) approach to JIA in improving outcomes. METHODS: A retrospective cohort study was performed on children with complex JIA (Type 2-4) treated at our national referral hospital from 1/2018 to 12/2022. BK was regularly used starting 1/1/2021, and outcomes between 1/2021 and 12/2022 were compared to those between 1/2018 and 12/2020. Statistical significance was set at p < 0.05. RESULTS: A total of 122 neonates presented with JIA in 1/2018-12/2022, 83 of whom were treated for complex JIA. A significant decrease (p = 0.03) was noted in patient mortality in 2021 and 2022 (n = 33, 45.5% mortality) compared to 2018-2020 (n = 35, 71.4% mortality). This translated to a risk reduction of 0.64 (95% CI 0.41-0.98) with the increased use of BK. CONCLUSION: Increased use of BK anastomoses with early enteral nutrition and decreased use of primary anastomosis improves outcomes for neonates with severe JIA in LIC settings. Implementing this surgical approach in LICs may help address the disparities in outcomes for children with JIA.

Low Cost Gastroschisis Silo for Sub-Saharan Africa: Testing in a Porcine Model.

BACKGROUND: Gastroschisis mortality in sub-Saharan Africa (SSA) remains high at 59-100%. Silo inaccessibility contributes to this disparity. Standard of care (SOC) silos cost $240, while median monthly incomes in SSA are < $200. Our multidisciplinary American and Ugandan team designed and bench-tested a low-cost (LC) silo that costs < $2 and is constructed from locally available materials. Here we describe in vivo LC silo testing. METHODS: A piglet gastroschisis model was achieved by eviscerating intestines through a midline incision. Eight piglets were randomized to LC or SOC silos. Bowel was placed into the LC or SOC silo, maintained for 1-h, and reduced. Procedure times for placement, intestinal reduction, and silo removal were recorded. Tissue injury of the abdominal wall and intestine was assessed. Bacterial and fungal growth on silos was also compared. RESULTS: There were no gross injuries to abdominal wall or intestine in either group or difference in minor bleeding. Times for silo application, bowel reduction, and silo removal between groups were not statistically or clinically different, indicating similar ease of use. Microbiologic analysis revealed growth on all samples, but density was below the standard peritoneal inoculum of 105 CFU/g for both silos. There was no significant difference in bacterial or fungal growth between LC and SOC silos. CONCLUSION: LC silos designed for manufacturing and clinical use in SSA demonstrated similar ease of use, absence of tissue injury, and acceptable microbiology profile, similar to SOC silos. The findings will allow our team to proceed with a pilot study in Uganda.

Pediatric surgery backlog at a Ugandan tertiary care facility: COVID-19 makes a chronic problem acutely worse.

BACKGROUND: 1.7 billion of the world's 2.2 billion children do not have access to surgical care. COVID-19 acutely exacerbated this problem; delaying or preventing presentation and access to surgical care globally. We sought to quantify the effect of COVID-19 on children requiring surgery in Uganda. METHODS: Average monthly incident, elective pediatric surgical patient volume was calculated by sampling clinic logs before and during the pandemic, and case volume was quantified by reviewing operative logbooks for all surgeries in 2020 at Mulago Hospital, Kampala. Disability-Adjusted Life Years (DALYs) resulting from untreated disease were calculated and used to estimate economic impact using three different models. RESULTS: Expected elective pediatric surgery cases were 956. In 2020, pediatric surgery at Mulago was limited to 46 elective cases, approximately 5% of the expected incident cases, leading to a backlog of 910 patients and a loss of 10,620.12 DALYs. The economic impact of more than 10,000 disability years in Uganda is conservatively estimated at $23 million USD with other measures estimating ~ $120 million USD. CONCLUSION: The COVID-19 pandemic limited access to pediatric surgery in Uganda, making a chronic problem acutely worse, with costly consequences for the children and health system.

Training low-middle-income (LMIC) pediatric surgeons in a high-income country (HIC) program.

BACKGROUND: A popular paradigm to support surgical education for low- and middle-income countries (LMICs) is partnering with high-income country (HIC) surgeons. These relationships may, however, be asymmetric and fail to optimally address the most pressing curricular needs. We explored the effectiveness of our LMIC-HIC educational partnership. METHODS: Through a partnership between a HIC (Canada) and a LMIC (Uganda), three candidate surgeons were commissioned for a custom designed 1-year training experience at our HIC accredited pediatric surgical training centre as part of their overall formal education. The training curriculum was developed in collaboration with the LMIC pediatric surgeon and utilized competency-based medical education principles. A Likert and short-answer survey tool was administered to these trainees upon completion of their training. RESULTS: All prescribed milestones as well as specialty certification by examination of the College of Surgeons of East, Central and Southern Africa was achieved by participating fellows, each of whom have begun clinical practice, leadership and teaching roles in their home country. Although several obstacles were identified by fellows, all agreed that the experience boosted their clinical and teaching abilities, and was worth the effort. CONCLUSION: This endeavour in global pediatric surgical training represents a significant innovation in surgical education partnerships and would be reproducible across different surgical subspecialties and contexts. Such collaborative efforts represent a feasible upskilling opportunity towards addressing global surgical service capacity. LEVEL OF EVIDENCE: V.

Impact of Bowel Coverage and Resuscitation Protocol on Gastroschisis Mortality in Low-Income Countries: Experience and Lessons From Uganda.

BACKGROUND: Gastroschisis causes near complete mortality in low-income countries (LICs). This study seeks to understand the impact of bedside bowel reduction and silo placement, and protocolized resuscitation on gastroschisis outcomes in LICs. METHODS: We conducted a retrospective cohort study of gastroschisis patients at a tertiary referral center in Kampala, Uganda. Multiple approaches for bedside application of bowel coverage devices and delayed closure were used: sutured urine bags (2017-2018), improvised silos using wound protectors (2020-2021), and spring-loaded silos (2022). Total parental nutrition (TPN) was not available; however, with the use of improvised silos, a protocol was implemented to include protocolized resuscitation and early enteral feeding. Risk ratios (RR) for mortality were calculated in comparison to historic controls from 2014. RESULTS: 368 patients were included: 42 historic controls, 7 primary closures, 81 sutured urine bags, 133 improvised silos and 105 spring-loaded silos. No differences were found in sex (p = 0.31), days to presentation (p = 0.84), and distance traveled to the tertiary hospital (p = 0.16). Following the introduction of bowel coverage methods, the proportion of infants that survived to discharge increased from 2% to 16-29%. In comparison to historic controls, the risk of mortality significantly decreased: sutured urine bags 0.65 (95%CI: 0.52-0.80), improvised silo 0.76 (0.66-0.87), and spring-loaded silo 0.65 (0.56-0.76). CONCLUSION: Bedside application of bowel coverage and protocolization decreases the risk of death for infants with gastroschisis, even in the absence of TPN. Further efforts to expand supply of low-cost silos in LICs would significantly decrease the mortality associated with gastroschisis in this setting. TYPE OF STUDY: Treatment Study. LEVEL OF EVIDENCE: III (Retrospective Comparative Study).

Comparison of Ugandan and North American Pediatric Surgery Fellows' Operative Experience: Opportunities for Global Training Exchange.

OBJECTIVE: North American pediatric surgery training programs vary in exposure to index cases, while controversy exists regarding fellow participation in global surgery rotations. We aimed to compare the case logs of graduating North American pediatric surgery fellows with graduating Ugandan pediatric surgery fellows. DESIGN: The pediatric surgery training program at a regional Ugandan hospital hosts a collaboration between Ugandan and North American attending pediatric surgeons. Fellow case logs were compared to the Accreditation Council for Graduate Medical Education Pediatric Surgery Case Log 2018 to 19 National Data Report. SETTING: Mulago National Referral Hospital in Kampala, Uganda; and pediatric surgery training programs in the United States and Canada. RESULTS: Three Ugandan fellows completed training and submitted case logs between 2011 and 2019 with a mean of 782.3 index cases, compared to the mean 753 cases in North America. Ugandan fellows performed more procedures for biliary atresia (6.7 versus 4), Wilm's tumor (23.7 versus 5.7), anorectal malformation (45 versus 15.7), and inguinal hernia (158.7 versus 76.8). North American fellows performed more central line procedures (73.7 versus 30.7), cholecystectomies (27.3 versus 3), extracorporeal membrane oxygenation cannulations (16 versus 1), and congenital diaphragmatic hernia repairs (16.5 versus 5.3). All cases in Uganda were performed without laparoscopy. CONCLUSIONS: Ugandan fellows have access to many index cases. In contrast, North American trainees have more training in laparoscopy and cases requiring critical care. Properly orchestrated exchange rotations may improve education for all trainees, and subsequently improve patient care.

Gastroschisis in Uganda: Opportunities for improved survival.

PURPOSE: Neonatal mortality from gastroschisis in sub-Saharan Africa is high, while in high-income countries, mortality is less than 5%. The purpose of this study was to describe the maternal and neonatal characteristics of gastroschisis in Uganda, estimate the mortality and elucidate opportunities for intervention. METHODS: An ethics-approved, prospective cohort study was conducted over a one-year period. All babies presenting with gastroschisis in Mulago Hospital in Kampala, Uganda were enrolled and followed up to 30days. Univariate and descriptive statistical analyses were performed on demographic, maternal, perinatal, and clinical outcome data. RESULTS: 42 babies with gastroschisis presented during the study period. Mortality was 98% (n=41). Maternal characteristics demonstrate a mean maternal age of 21.8 (±3.9) years, 40% (n=15) were primiparous, and fewer than 10% (n=4) of mothers reported a history of alcohol use, and all denied cigarette smoking and NSAID use. Despite 93% (n=39) of mothers receiving prenatal care and 24% (n=10) a prenatal ultrasound, correct prenatal diagnosis was 2% (n=1). Perinatal data show that 81% of deliveries occurred in a health facility. The majority of babies (58%) arrived at Mulago Hospital within 12h of birth, however 52% were breastfeeding, 53% did not have intravenous access and only 19% had adequate bowel protection in place. Four patients (9%) arrived with gangrenous bowel. One patient, the only survivor, had primary closure. Average time to death was 4.8days [range<1 to 14days]. CONCLUSION: The mortality of gastroschisis in Uganda is alarmingly high. Improving prenatal diagnosis and postnatal care of babies in a tertiary center may improve outcome.