Care of infants with gastroschisis in low-resource settings

Gastroschisis: embriology, pathogenesis, risk factors, prognosis, and ultrasonographic markers for adverse neonatal outcomes

Gastroschisis is the most common congenital defect of the abdominal wall, typically located to the right of the umbilical cord, through which the intestinal loops and viscera exit without being covered by the amniotic membrane. Despite the known risk factors for gastroschisis, there is no consensus on the cause of this malformation. Prenatal ultrasound is useful for diagnosis, prognostic prediction (ultrasonographic markers) and appropriate monitoring of fetal vitality. Survival rate of children with gastroschisis is more than 95% in developed countries; however, complex gastroschisis requires multiple neonatal interventions and is associated with adverse perinatal outcomes. In this article, we conducted a narrative review including embryology, pathogenesis, risk factors, and ultrasonographic markers for adverse neonatal outcomes in fetuses with gastroschisis. Prenatal risk stratification of gastroschisis helps to better counsel parents, predict complications, and prepare the multidisciplinary team to intervene appropriately and improve postnatal outcomes.

Challenges and lessons learnt in the management of an HIV-exposed neonate with gastroschisis in a resource-limited setting: case report

Introduction and importance

The incidence of congenital abdominal wall defects is increasing, but few cases have been reported in the African population.

Case presentation

The authors report a case of gastroschisis in a term neonate who was delivered through spontaneous vaginal delivery (SVD) in a remote health facility before transfer to a tertiary hospital in Uganda. Although there was no environmental exposure to teratogens, the major risk factor of Gastroschisis, the neonate was low birth weight, HIV-exposed, and the mother had not received folic acid supplementation during the first trimester, known risk factors of gastroschisis. Physical examination revealed intrauterine growth restriction in addition to the findings of the abdominal wall defect.

Clinical discussion

There were many missed opportunities in the management of this case which was marred by delayed essential care of the newborn, delayed surgical repair, and transfer to the tertiary surgical centre. At the tertiary surgical centre, a modified silo technique with delayed secondary closure was used to repair the defect, but the neonate still met its death before completing day 7 of life.

Conclusion

This case of gastroschisis shows how the diagnosis and management of neonates born with major congenital structural abnormalities in resource-limited settings is still desirable due to lack of sophisticated medical care services to assist in early detection during pregnancy and early surgical intervention at birth to prevent associated mortality. The authors discuss the lessons learnt and provide recommendations for improvement in the care of neonates born with abdominal wall defects and other congenital birth defects.

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).

Retrospective review of antimicrobial use for gastroschisis patients in Kigali, Rwanda: can improved stewardship reduce late inpatient deaths?

Gastroschisis mortality is 75-100% in low-resource settings. In Rwanda, late deaths are often due to sepsis. We aimed to understand the effect of antimicrobial use on survival. We conducted a retrospective review of gastroschisis patients at a tertiary hospital in Kigali, Rwanda between January 2016-June 2019. Demographics, antimicrobial use, microbiology, and outcomes were abstracted. Descriptive and univariate analyses were conducted to assess factors associated with improved survival. Among 92 gastroschisis patients, mortality was 77%(n = 71); 23%(n = 21) died within 48 h. 98%(n = 90) of patients received antibiotics on arrival. Positive blood cultures were obtained in 41%(n = 38). Patients spent 86%(SD = 20%) of their hospital stay on antibiotics and 38%(n = 35) received second-line agents. There was no difference in age at arrival, birth weight, gestational age, silo complications, or antimicrobial selection between survivors and non-survivors. Late death patients spent more total hospital days and post-abdominal closure days on antibiotics (p < 0.001) compared to survivors. There was no difference in the proportion of hospital stay on second-line antibiotics (p = 0.1).

CONCLUSION

We identified frequent late deaths, prolonged antibiotic courses, and regular use of second-line antibiotic agents in this retrospective cohort of Rwandan gastroschisis patients. Future studies are needed to evaluate antimicrobial resistance in pediatric surgical patients in Rwanda.

WHAT IS KNOWN

• Global disparities in gastroschisis outcomes are extreme, with <4% mortality in high-income settings and 75-100% mortality in low-income settings. • Antimicrobial surveillance data is sparse across Africa, but existing evidence suggests high levels of resistance to first-line antibiotics in Rwanda.

WHAT IS NEW

• In-hospital survival for gastroschisis was 23% from 2016-2019 and most deaths occurred late (>48hrs after admission) due to sepsis. • Rwandan gastroschisis patients received prolonged courses of antibiotics and second-line antibiotics were frequently used without culture data, raising concern for antimicrobial resistance.

Improved Mortality of Patients with Gastroschisis: A Historical Literature Review of Advances in Surgery and Critical Care from 1960-2020

The improved survival of gastroschisis patients is a notable pediatric success story. Over the past 60 years, gastroschisis evolved from uniformly fatal to a treatable condition with over 95% survival. We explored the historical effect of four specific clinical innovations—mechanical ventilation, preformed silos, parenteral nutrition, and pulmonary surfactant—that contributed to mortality decline among gastroschisis infants. A literature review was performed to extract mortality rates from six decades of contemporary literature from 1960 to 2020. A total of 2417 publications were screened, and 162 published studies (98,090 patients with gastroschisis) were included. Mortality decreased over time and has largely been <10% since 1993. Mechanical ventilation was introduced in 1965, preformed silo implementation in 1967, parenteral nutrition in 1968, and pulmonary surfactant therapy in 1980. Gastroschisis infants now carry a mortality rate of <5% as a result of these interventions. Other factors, such as timing of delivery, complex gastroschisis, and management in low- and middle-income countries were also explored in relation to gastroschisis mortality. Overall, improved gastroschisis outcomes serve as an illustration of the benefits of clinical advances and multidisciplinary care, leading to a drastic decline in infant mortality among these patients.

Predicting Factors of Protracted Intestinal Failure in Children with Gastroschisis

OBJECTIVE

To identify prenatal and neonatal predictors of short bowel syndrome-related intestinal failure (SBS-IF) in gastroschisis.

STUDY DESIGN

This retrospective study included all patients with gastroschisis born between 2000 and 2017 who were enrolled in our home parenteral nutrition program, and all patients with gastroschisis born in our institution who survived 2 weeks, during the same time period. Prenatal ultrasound features, neonatal status, anatomic features, oral feeding, and parenteral nutrition dependency were analyzed.

RESULTS

Among 180 patients, 35 required long-term parenteral nutrition (SBS-IF group) and 145 acquired full oral feeding within 6 months (oral feeding group). The mean follow-up was 7.9 years (IQR, 1.6-17.5 years) and 5.0 years (IQR, 0.1-18.2 years), respectively. Both bowel matting (OR, 14.23; 1.07-16.7; P = .039) and secondarily diagnosed atresia or stenosis (OR, 17.78; 3.13-100.98; P = .001) were independent postnatal predictors of SBS-IF. Eighteen children (51% of the SBS-IF group) were still dependent on artificial nutrition at the last follow-up. patients with SBS-IF who achieved full oral feeding had a median residual small-bowel length of 74 cm (IQR, 51-160 cm) vs 44 cm (IQR, 10-105 cm) for those still dependent on artificial nutrition (P = .02). An initial residual small bowel length of more than 50 cm was the best predictive cut-off for nutritional autonomy, with a sensitivity of 67% and a specificity of 100%.

CONCLUSIONS

Bowel matting, complex gastroschisis, and secondary intestinal obstruction were associated with SBS-IF in gastroschisis. For patients with SBS-IF, a small bowel length of more than 50 cm was predictive of secondary nutritional autonomy.

Influence of birthplace on gastroschisis outcomes in a state in the southeastern region of Brazil

OBJECTIVE

To characterize the influence of birthplace on outcomes of patients with gastroschisis admitted to three hospitals in a state in Brazil's southeastern region, according to condition inborn (born in a reference center) or outborn (born outside the reference center).

METHODS

Retrospective multicenter cohort study of patients with gastroschisis. The sample size utilized was of patients admitted in three hospitals with a diagnosis of gastroschisis ICD 10 Q79.3 between January 2000 to December 2018. Patients were divided into two groups, inborn and outborn. Characteristics of prenatal, perinatal and postoperative were compared using statistical tests. The level of significance adopted was P-value < 0.05.

RESULTS

In total, 144 cases of gastroschisis were investigated. The outborn patients group had higher rates of absence of antenatal diagnosis (p = 0.001), vaginal delivery (p = 0.001), longer time between birth and abdominal wall closure surgery (p = 0.001), to silo removal (p = 0.001), to first enteral feeding (p = 0.008), for weaning from mechanical ventilation (p = 0.034), used less peripherally inserted central catheter (PICC) and required more venous dissections (p = 0.001), and lower mean of serum sodium (p = 0.015). There were no differences in mortality rates and length of hospital stay between the inborn and outborn groups.

CONCLUSION

Although outborn patients with gastroschisis were less likely to have an antenatal diagnosis and were more prone to a longer time to undergo surgical and feeding procedures, and to spend more time in mechanical ventilation, these disadvantages seemed not to reflect on the death rate and the length of hospital stay of patients from this group.

Gastroschisis: A Successful, Prospectively Evaluated Treatment Model in a Middle-Income Country

BACKGROUND

This research adopted a care protocol from high-income countries in a level II/III hospital in a middle-income country to decrease morbidity and mortality associated with gastroschisis.

METHODS

We established a multidisciplinary protocol to treat patients with gastroschisis prospectively from November 2012 to November 2018. This included prenatal diagnosis, presence of a neonatologist and pediatric surgeon at birth, and either performing primary closure on the patients with an Apgar score of 8/9, mild serositis, and no breathing difficulty or placing a preformed silo, when unable to fulfill these criteria, under sedation and analgesia (no intubation) in the operating room or at the patients' bedside. The subsequent management took place in the neonatal intensive care unit. The data were analyzed through the Mann-Whitney and Student's t-distribution for the two independent samples; the categorical variables were analyzed through a chi-square distribution or Fisher's exact test.

RESULTS

In total, 55 patients were included in the study: 33 patients (60%) were managed with a preformed silo, whereas 22 patients (40%) underwent primary closure. Prenatal diagnosis (P = 0.02), birth at the main hospital (P = 0.02), and the presence of a pediatric surgeon at birth (P = 0.04) were associated with successful primary closure. The primary closure group had fewer fasting days (P < 0.001) and a shorter neonatal intensive care unit length of stay (P = 0.025). The survival rate was 92.7% (51 patients).

CONCLUSION

The treatment model modified to fit the means of our hospital proved successful.

Paediatric surgical outcomes in sub-Saharan Africa: a multicentre, international, prospective cohort study

INTRODUCTION

As childhood mortality from infectious diseases falls across sub-Saharan Africa (SSA), the burden of disease attributed to surgical conditions is increasing. However, limited data exist on paediatric surgical outcomes in SSA. We compared the outcomes of five common paediatric surgical conditions in SSA with published benchmark data from high-income countries (HICs).

METHODS

A multicentre, international, prospective cohort study was undertaken in hospitals providing paediatric surgical care across SSA. Data were collected on consecutive children (birth to 16 years), presenting with gastroschisis, anorectal malformation, intussusception, appendicitis or inguinal hernia, over a minimum of 1 month, between October 2016 and April 2017. Participating hospitals completed a survey on their resources available for paediatric surgery.The primary outcome was all-cause in-hospital mortality. Mortality in SSA was compared with published benchmark mortality in HICs using χ² analysis. Generalised linear mixed models were used to identify patient-level and hospital-level factors affecting mortality. A p<0.05 was deemed significant.

RESULTS

1407 children from 51 hospitals in 19 countries across SSA were studied: 111 with gastroschisis, 188 anorectal malformation, 225 intussusception, 250 appendicitis and 633 inguinal hernia. Mortality was significantly higher in SSA compared with HICs for all conditions: gastroschisis (75.5% vs 2.0%), anorectal malformation (11.2% vs 2.9%), intussusception (9.4% vs 0.2%), appendicitis (0.4% vs 0.0%) and inguinal hernia (0.2% vs 0.0%), respectively. Mortality was 41.9% (112/267) among neonates, 5.0% (20/403) in infants and 1.0% (7/720) in children. Paediatric surgical condition, higher American Society of Anesthesiologists score at primary intervention, and needing/receiving a blood transfusion were significantly associated with mortality on multivariable analysis.

CONCLUSION

Mortality from common paediatric surgical conditions is unacceptably high in SSA compared with HICs, particularly for neonates. Interventions to reduce mortality should focus on improving resuscitation and timely transfer at the district level, and preoperative resuscitation and perioperative care at paediatric surgical centres.

A retrospective review of gastroschisis epidemiology and referral patterns in northern Ghana

PURPOSE

To describe the epidemiology and referral patterns of gastroschisis patients in northern Ghana.

METHODS

A hospital-based retrospective review was undertaken at Tamale Teaching Hospital (TTH) Neonatal Intensive Care Unit (NICU) between 2014 and 2019. Data from gastroschisis patients were compared to patients with other surgical diagnoses. Descriptive and inferential statistics were performed with SAS. Referral flow maps were made with ArcGIS.

RESULTS

From a total of 360 neonates admitted with surgical conditions, 12 (3%) were diagnosed with gastroschisis. Around 91% (n = 10) of gastroschisis patients were referred from other hospitals, traveling 4 h, on average. Referral patterns showed gastroschisis patients were admitted from three regions, whereas patients with other surgical diagnoses were admitted from eight regions. Only 6% (12/201) of expected gastroschisis cases were reported during the 6-year period in all regions. All gastroschisis deaths occurred within the first week of life.

CONCLUSIONS

Improving access to surgical care and reducing neonatal mortality related to gastroschisis in northern Ghana is critical. This study provides a baseline to inform future gastroschisis interventions at TTH. Priority areas may include special management of low birth weight newborns, better referral systems, empowerment of community health workers, and increasing access to timely, affordable, and safe neonatal transport.

Congenital malformations in neonates admitted to a neonatal intensive care unit in a low-resource setting

INTRODUCTION

Congenital malformations (CMs) are among the major causes of infant mortality in middle- and low-resource countries. This is the first study describing CMs in neonates admitted to the Neonatal Intensive Care Unit (NICU) of a referral hospital in Mozambique.

METHODS

We included all neonates with CMs admitted to the NICU of Beira Central Hospital from January 2015 to December 2016. CMs were classified according to the International Classification of Disease (ICD-10). All data were retrieved from medical charts.

RESULTS

CMs were found in 143/4767 (3%) neonates admitted to the NICU. The most frequent CMs were musculoskeletal (31%), neurological (18%), multiple congenital anomalies (12%), chromosomopathies (11%), cardiovascular (10%), and gastrointestinal (8%). Forty-three patients (30%) underwent corrective surgery. Overall mortality rate was 50%.

CONCLUSIONS

The prevalence of CMs was 3%, with a mortality rate of 50%. Alongside implementation of antenatal screening programs, improvement on expertise and postnatal care of CMs are warranted.

Challenges and Outcome of Management of Gastroschisis at a Tertiary Institution in North-Eastern Nigeria

Introduction: Gastroschisis is a congenital anterior abdominal wall defect characterized by herniation of abdominal contents through a defect usually located to the right side of the umbilical cord. It occurs in about 1 in 2,000-4,000 live births and is slightly commoner in males. Management has remained challenging in the low and middle-income countries (LMICS), with high mortality rates. This study highlights the clinical presentation, treatment, outcomes, and challenges in the management of gastroschisis at a tertiary healthcare center in a resource-limited setting. Methods: This was a retrospective review of the records of all patients with gastroschisis managed over a period of 30 months (January 2016-June 2018). Data on patients' demographics, age, birth weight, clinical presentation, method of gastroschisis reduction and closure, complications, and outcomes were collated. Statistical analysis was performed using SPSS version 20. A p-value of >0.05 was considered significant. Results: Twenty-four patients with gastroschisis were managed. Of these, 18 patients had data available for analysis. There were 14 males, with a male-female ratio of 3.5:1. The median age at presentation was 11.0 h (range 1-36 h). Ten patients (55.6%) were delivered in a medical facility. One patient had type II jejunal atresia and transverse colonic atresia as associated anomalies. Improvised silos were applied by the bedside in 15 (83.3%) patients, while two patients (11.1%) had primary closure under general anesthesia. One patient died before definitive treatment could be done. Sterile urobags and female condoms were used for constructing improvised silos in 9 (60%) and 6 (40%) patients, respectively. Eight patients who had initial silo application had complete bowel reduction over a median time of 8.0 days (mean 10.0 ± 6.5 days, range 2-23 days). Total parenteral nutrition (TPN) was not available. The average time to commencement of feeding was 8.0 days ± 6.6 (median 6.0 days, range 2-22 days). Full feeding was achieved in five patients (two patients in the primary closure group and three from the silo group) over a mean time of 16.8 days ± 10.4 (median 14.0 days). Sepsis was the commonest complication. Four patients (22.2%) survived. Conclusion: Management of gastroschisis remains challenging in resource-limited regions.

Burden and Outcomes of Neonatal Surgery in Uganda: Results of a Five-Year Prospective Study

BACKGROUND

Ninety-four percent of congenital anomalies occur in low- and middle-income countries. In Uganda, only three pediatric surgeons and three pediatric anesthesiologists serve more than 20 million children. This study estimates burden, outcomes, coverage, and economic benefit of neonatal surgical conditions in Uganda.

METHODS

A prospectively collected database was reviewed for neonatal surgical admissions from January 1, 2012, to December 31, 2017, at the only two sites with specialist pediatric surgical coverage. Outcomes were compared with high-income countries. Met and unmet need were estimated using disability-adjusted life years. Economic benefit was estimated using a value of statistical life-year approach.

RESULTS

For 1313 neonatal admissions, the median age of presentation was 3 d, overall mortality was 36%, and median distance traveled was 40 km. Anorectal malformations were most common (18%). Postoperative mortality was 24%. Mortality was significantly associated with surgical intervention (P < 0.0001). Met need was 4181 disability-adjusted life years per year, which corresponds to a $3.5 million net economic benefit to Uganda, with a potential additional benefit of $153 million if unmet need were fully addressed. Approximately 2% of the total need is met by the health care system.

CONCLUSIONS

Neonatal surgery is associated with improved survival for most conditions. Despite increases in workforce and infrastructure, a limited proportion of the need for neonatal surgery is currently being met. This is multifactorial, including lack of access to surgical care and severe shortages of workforce and infrastructure. Current and potential economic benefit to Uganda appears substantial.