Short Efficacy Evaluation of External Ventricular Drains Versus Ventriculosubgaleal Shunt in the Management of Neonatal Posthemorrhagic Hydrocephalus: A Retrospective Single-Center Cohort Study

Background: Different temporizing neurosurgical procedures are available for the management of posthemorrhagic hydrocephalus in preterm newborns. Objective: To evaluate the short efficacy of the external ventricular drains (EVDs) and the ventriculosubgaleal (VSG) shunt. Methods: This is a Strengthening the Reporting of Observational Studies in Epidemiology-conformed retrospective cohort study. The inclusion criteria were (1) gestational age <37 weeks, (2) birth weight <1500 g, (3) posthemorrhagic hydrocephalus because of intraventricular hemorrhage grade II/III, and (4) EVD or VSG shunt procedure before ventriculoperitoneal (VP)-definite shunt. Twenty-four newborns were collected from 2006 to 2022. The end points considered were infectious events, proteinorrachia, reintervention rate, and time to conversion to definite VP shunt. Results: Overall, 12/24 newborns underwent EVD, and the remnant had a VSG shunt. The results showed a statistically significant difference (P = .02) concerning cerebrospinal fluid infections between the EVD group (50%) and VSG shunt 1 (8.33%). The reintervention rate of EVD was significantly higher (66.67%) compared with that of the VSG shunt group (8.33%). A statistically significant difference was stated between the 2 groups (t[13] = -8.250; P < .001) (mean difference ± standard error; 10.5 ± 1.273) in the mean number of days elapsed from the achievement of the ideal weight (2000 g) to the definitive VP drainage. Conclusion: The increased infectious risk and the higher reintervention rate in EVD were confirmed in this study. In addition, a significant delay in the time to -conversion from EVD to VP shunt was demonstrated. Despite these optimal results, the VSG shunt remains a low practiced intervention, probably because of the limited operator experience.