Hydrocephalus in patients with encephalocele: introduction of a scoring system for estimating the likelihood of hydrocephalus based on an 11-year experience from a tertiary center

Author:

Kankam Samuel B.1,Nejat Amirhosein2,Tavallaii Amin3,Tayebi Meybodi Keyvan1,Habibi Zohreh1,Nejat Farideh1

Affiliation:

1. Department of Pediatric Neurosurgery, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran;

2. Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran; and

3. Department of Pediatric Neurosurgery, Akbar Children’s Hospital, Mashhad University of Medical Sciences, Mashhad, Iran

Abstract

OBJECTIVE The goal of this study was to investigate and identify the predictors associated with the incidence of hydrocephalus requiring shunt insertion in patients with encephalocele (EC), and to develop a scoring system to estimate the probability of hydrocephalus occurrence over time in these patients. METHODS A retrospective analysis was undertaken on data from patients treated for EC at a tertiary medical center between 2010 and 2021. Data including patient age at presentation, sex, sac location, sac size, contents, presence of ventriculomegaly/hydrocephalus, CSF leakage, and other associated intracranial/extracranial anomalies were among the variables evaluated for their predictive value. In addition, logistic regression analyses were performed to identify the independent predictors. A predictive scoring system was developed based on regression coefficients. RESULTS A total of 102 cases of EC were identified. The patient group consisted of 52 boys and 50 girls. Seventy-one patients (69.6%) had posterior ECs. Forty-three (42.2%) of the ECs contained neural tissue. Thirty-three patients presented with ventriculomegaly (32.4%), 30 of whom (90.9%) underwent ventriculoperitoneal shunt placement for hydrocephalus. Multivariate analysis revealed that the presence of other associated anomalies (OR 2.8, 95% CI 1.1–7.4, p = 0.027), larger EC sac size (OR 1.3, 95% CI 1.01–1.6, p = 0.042), and infections (OR 6.8, 95% CI 1.3–34.8, p = 0.034) were associated with ventriculomegaly. The logistic regression model consisted of 5 variables including the patients’ history of meningitis, their sex, sac location, sac size, and presence of other other associated anomalies; analysis resulted in the maximum accuracy of 86% for the prediction of hydrocephalus occurrence. CONCLUSIONS According to the findings, the presence of other associated anomalies, a larger sac, and infections are significant independent predictors of hydrocephalus. By considering these 3 predictors as well as sac location and the patient’s sex, it will be possible to predict hydrocephalus occurrence in patients with EC with significant accuracy.

Publisher

Journal of Neurosurgery Publishing Group (JNSPG)

Subject

General Medicine

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