Factors affecting endoscopic third ventriculostomy success in adults

Area of Science:

• Neurosurgery
• Neurology
• Medical Devices

Background:

• Endoscopic third ventriculostomy (ETV) is a standard hydrocephalus treatment.
• The ETV success score, developed for pediatric cases, is commonly used for adults.
• Adult hydrocephalus may have distinct characteristics affecting ETV outcomes.

Purpose of the Study:

• Assess the predictive accuracy of the ETV success score in adult hydrocephalus.
• Identify factors influencing ETV outcomes in adult patients.
• Evaluate the model's applicability to adult populations.

Main Methods:

• Retrospective analysis of 136 adult patients undergoing ETV (2012-2020).
• Comparison of observed 6-month outcomes with pre-operative ETV success scores.
• Multivariable Bayesian logistic regression to identify significant predictors.

Main Results:

• Overall ETV success rate was 77% at 6 months.
• The ETV success score predicted outcomes well for high scores but less accurately for low scores.
• Aqueductal obstruction was the strongest predictor of ETV success (OR 1.65); elective procedures also showed higher success.

Conclusions:

• ETV is successful in approximately 75% of adult hydrocephalus cases within 6 months.
• Obstruction at the aqueduct is a key predictor of ETV success in adults.
• Adult hydrocephalus management requires consideration of distinct factors, necessitating an adult-specific predictive tool.