Complications and 3-month outcomes of children with hydrocephalus treated with ventriculoperitoneal shunts in Malawi

The status of pediatric surgery in Malawi: a narrative mini-review

Introduction

Pediatric surgery is essential to a well-functioning health system. Unmet surgical needs contribute to 6.7% of pediatric deaths in Malawi. Understanding the current state of pediatric surgical care in Malawi is necessary to recognize gaps and opportunities in service delivery and to develop evidence-based national planning and solutions.

Methods

This narrative mini review synthesized the literature on the state of pediatric surgery in Malawi through the pillars of the World Health Organization's Health System Building Blocks. A search of PubMed, Embase, and Scopus databases was executed to identify relevant studies and a thematic analysis was performed. Further, to ensure contextual accuracy, pediatric surgeons from Malawi were consulted and involved in this review.

Results

Twenty-six papers were identified. In Malawi's central hospitals, there are six specialist pediatric surgeons for a pediatric population of more than 8 million. There is limited pediatric surgical capacity at the district hospitals. There is little to no written evidence of the national governing and finance structures in place for pediatric surgical services.

Discussion

In countries like Malawi, where a significant portion of the population comprises children, it is crucial to recognize that pediatric services are currently inadequate and fall short of the required standards. It is crucial to prioritize the enhancement of services specifically designed for this age group. This review aims to shed light on the existing gaps within pediatric surgical services in Malawi, providing valuable insights that can inform the development of comprehensive national surgical planning strategies.

Delays in care for hydrocephalus and spina bifida at a tertiary hospital in Somaliland

Background

Childhood neurosurgical conditions such as hydrocephalus and spina bifida represent a significant burden of death and disability worldwide, particularly in low and middle-income countries. However, there are limited data on the disease prevalence and delays in care for pediatric neurosurgical conditions in very low-resource settings. This study aims to characterize the delays in access to care for pediatric neurosurgical conditions in Somaliland.

Methods

We performed a retrospective review of all children with congenital hydrocephalus and spina bifida admitted to the Edna University Hospital (EAUH) in Somaliland between 2011 and 2018. Patient demographics were analyzed with descriptive statistics and χ2 test statistics. We defined delays in care for each condition based on standard care in high-income settings. Univariate and multivariate logistic regression were performed to evaluate predictors of delay in care. Statistical significance was set at p<0.05.

Results

A total of 344 children were admitted to EAUH with neurosurgical conditions from 2011 to 2018. The most common condition was congenital hydrocephalus (62%). Delays in care were found for 90% of patients and were associated with the type of diagnosis and region. The longest delay among children with spina bifida was 60 months, while the longest delay for children with congenital hydrocephalus was 36 months. Children with congenital hydrocephalus or spina bifida traveling from foreign countries had the highest waiting time to receive care, with a median delay of 8 months (IQR: 5-11 months) and 4 months (IQR: 3-7 months), respectively.

Conclusion

We found significant delays in care for children with neurosurgical conditions in Somaliland. This country has an urgent need to scale up its surgical infrastructure, workforce, and referral pathways to address the needs of children with hydrocephalus and spina bifida.

Mortality and complications 1 year after treatment of hydrocephalus with endoscopic third ventriculostomy and ventriculoperitoneal shunt in children at Queen Elizabeth Central Hospital, Malawi

BACKGROUND

Over the past two decades, the management of hydrocephalus has witnessed the addition of endoscopic third ventriculostomy with or without choroid plexus cauterization (ETV ± CPC) to the traditional methods including ventriculoperitoneal shunt insertion (VPSI). We conducted this study to assess mortality and complications with surgical implications associated with the two procedures in children with hydrocephalus.

METHODS

We reviewed our operating theater registry to identify children below 17 years old who underwent hydrocephalus surgery for the first time in 2016. The patients were followed for up to 1 year from the date of the initial operation. Their vital status was confirmed by follow-up visits by a community nurse. Descriptive analyses were used to describe the characteristics of the patients and evaluate the study outcomes (i.e., mortality and complications).

RESULTS

One hundred fifty-three patients were eligible for the study; 56% were males and 73.2% had primary ETV ± CPC. Complete 1-year follow-up data was available for 79 patients, and 73.4% of these had ETV ± CPC. One-year success (event-free) rates for ETV and VPSI were similar at 67.4% and 66.7%, respectively. ETVs in infants under 6 months performed poorly; failing in half the infants, who were subsequently converted to VPS. Shunt sepsis was very high, 21.4% (95% CI 10.3-36.8). The majority of surgical complications (81.8%) occurred within 3 months of surgery.

CONCLUSION

ETV ± CPC and VPSI carry a similar frequency of mortality and complications in our setting, and therefore, both should be considered as a treatment option for patients with hydrocephalus. As VP shunt is still used for managing most of the patients, there is still a need to prioritize measures to reduce shunt infections.

Pediatric Hydrocephalus in Northwest Tanzania: a descriptive cross-sectional study of clinical characteristics and early surgical outcomes from the Bugando Medical Centre

OBJECTIVES

In this study, we present data from a neurosurgical training program in Tanzania for the treatment of pediatric hydrocephalus. The objectives of the study were to identify the demographics and clinical characteristics of pediatric patients with hydrocephalus who were admitted to Bugando Medical Centre in Mwanza, Tanzania, as well as to describe their surgical treatment and early clinical outcomes.

METHODS

This cross-sectional study included 38 pediatric patients. Physical examinations were conducted pre- and postoperatively, and their mothers completed a questionnaire providing demographic and clinical characteristics.

RESULTS

There was a slight preponderance of male sex (21/38; 55.3%) with median age at the time of admission of 98.5 days. The majority of patients were surgically treated (33/38; 86.8%). Among those surgically treated, most received a ventriculoperitoneal shunt (23/33; 69.7%), whereas 7 were treated with an endoscopic third ventriculostomy (7/33; 21.2%). At the time of admission, the majority of patients (86%) had head circumferences that met criteria for macrocephaly. The median time between admission and surgery was 23 days (2-49 days). Overall, 5 patients (13.2%) died, including 2 who did not receive surgical intervention.

CONCLUSIONS

We found that in our population, pediatric patients with hydrocephalus often present late for treatment with additional significant delays prior to receiving any surgical intervention. Five patients died, of whom 2 had not undergone surgery. Our study reinforces that targeted investments in clinical services are needed to enable access to care, improve surgical capacity, and alleviate the burden of neurosurgical disease from pediatric hydrocephalus in sub-Saharan Africa.

Assessing neurodevelopmental outcome in children with hydrocephalus in Malawi. A pilot study

INTRODUCTION

Congenital and infantile hydrocephalus are assumed to be major contributors to pediatric morbidity, mortality and functional disability in low-income countries. Despite this, epidemiologic data and the overview of neurodevelopmental outcomes in these regions is very limited. We aimed to pilot the use of a wide range of more locally suitable tools to assess neurodevelopment to understand whether they were feasible for use and could provide estimates of developmental delay and poor functioning in a population of children with hydrocephalus in Malawi.

METHODS

We conducted a prospective observational cohort study, at the tertiary neurosurgery clinic in Blantyre, Malawi in 2018, recruiting consecutive children with congenital and infantile hydrocephalus who were previously treated with ventriculoperitoneal shunts and endoscopic third ventriculostomy (ETV) in the neurosurgery unit of the hospital. We assessed demographic details, and gained information on children's functioning using the Liverpool Outcome Score (LOS), and the Eating and Drinking Ability Classification System as well as full anthropometric assessment and child development with the Malawi Developmental Assessment Tool (MDAT).

RESULTS

All tools were feasible for use, easy to train on, could be used for assessing children with hydrocephalus and were suitable to adapt for our environment. We evaluated 41 children, aged 2-60 months with a mean age of 22.6 months (interquartile range [IQR] = 8.3 months -36.5 months). Functional assessment using the Liverpool Outcome Score showed the majority of children 92.7% (CI 80.1-98.5, n = 38) had severe sequelae from the hydrocephalus and were dependent on their parents or caregivers. Only 27 children (65.9%, CI 49.4, 80.0) had full or expected control of their bowel and bladder and 6 children (14.6%, CI 5.6, 29.2), had a recent history of seizures. About two thirds (63.4% CI 45.0-77.9, n = 26/41) of children were able to eat and to drink safely and efficiently. Over two thirds of the children (70.7%, CI 56.8, 84.6, n = 29) were stunted and almost half of the cohort underweight (43.9%,(CI 28.5, 60.3, n = 18). Almost half 48.8% (CI 32.9, 64.9, n = 20/41) had developmental delay on MDAT with 41.5% (CI 26.4, 56.6, n = 17/41) graded as severely delayed (-<2sd on developmental age z score). We found significant associations between dependence identified by the LOS and developmental delay according to the MDAT (p = 0.014, Pearson's chi-squared test).

CONCLUSION

This pilot study demonstrates that the assessment tools we used identified a high proportion of children with hydrocephalus as having functional difficulties, stunted growth and developmental delay, in Malawi. Use of these tools can now be scaled up and will be helpful to support research in understanding what factors contribute to poor functioning, growth and development in these cohorts and help us to investigate what strategies may prevent and support children with hydrocephalus in African settings.

Pediatric hydrocephalus outcomes in Lusaka, Zambia

OBJECTIVE

Hydrocephalus is a global disease that disproportionally impacts low- and middle-income countries. Limited data are available from sub-Saharan Africa. This study aims to be the first to describe pediatric hydrocephalus epidemiology and outcomes in Lusaka, Zambia.

METHODS

This retrospective cohort study included patients < 18 years of age who underwent surgical treatment for hydrocephalus at Beit-CURE Hospital and the University Teaching Hospital in Lusaka, Zambia, from August 2017 to May 2019. Surgeries included ventriculoperitoneal shunt insertions, revisions, and endoscopic third ventriculostomies (ETVs) with or without choroid plexus cauterization (CPC). A descriptive analysis of patient demographics, clinical presentation, and etiologies was summarized, followed by a multivariable analysis of mortality and 90-day complications.

RESULTS

A total of 378 patients met the inclusion criteria. The median age at first surgery was 5.5 (IQR 3.1, 12.7) months, and 51% of patients were female (n = 193). The most common presenting symptom was irritability (65%, n = 247), followed by oculomotor abnormalities (54%, n = 204). Postinfectious hydrocephalus was the predominant etiology (65%, n = 226/347), and 9% had a myelomeningocele (n = 32/347). It was the first hydrocephalus surgery for 87% (n = 309) and, of that group, 15% underwent ETV/CPC (n = 45). Severe hydrocephalus was common, with 42% of head circumferences more than 6 cm above the 97th percentile (n = 111). The median follow-up duration was 33 (IQR 4, 117) days. The complication rate was 20% (n = 76), with infection being most common (n = 29). Overall, 7% of the patients died (n = 26). Postoperative complication was significantly associated with mortality (χ2 = 81.2, p < 0.001) with infections and CSF leaks showing the strongest association (χ2 = 14.6 and 15.2, respectively, p < 0.001). On adjusted multivariable analysis, shunt revisions were more likely to have a complication than ETV/CPC or primary shunt insertions (OR 2.45 [95% CI 1.26-4.76], p = 0.008), and the presence of any postoperative complication was the only significant predictor of mortality (OR 42.9 [95% CI 12.3-149.1], p < 0.001).

CONCLUSIONS

Pediatric postinfectious hydrocephalus is the most common etiology of hydrocephalus in Lusaka, Zambia, which is similar to other countries in sub-Saharan Africa. Most children present late with neglected hydrocephalus. Shunt revision procedures are more prone to complication than ETV/CPC or primary shunt insertion, and postoperative complications represent a significant predictor of mortality in this population.