Related Experiment Video
Updated: Apr 25, 2026

Author Spotlight: A Single-Entry Point Endoscopic Intraventricular Approach for Third Ventriculostomy and Pineal Biopsy
Published on: June 28, 2024
[Therapeutic effect of endoscopic third ventriculostomy for pediatric hydrocephalus]
Feng Guan1, Zhiqiang Hu1, Hui Huang1
1Department of Neurosurgery, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China.
Insights
The Endoscopic Third Ventriculostomy Success Score (ETVSS) accurately predicts long-term outcomes for pediatric hydrocephalus treated with endoscopic third ventriculostomy (ETV). This score aids clinicians in predicting therapeutic effects for low, moderate, and high-risk patient groups.
Area of Science:
- Neurosurgery
- Pediatric Neurology
- Medical Informatics
Background:
- Hydrocephalus is a common neurological condition in children.
- Endoscopic third ventriculostomy (ETV) is a surgical procedure to treat hydrocephalus.
- Predicting ETV success is crucial for patient management.
Purpose of the Study:
- To validate the Endoscopic Third Ventriculostomy Success Score (ETVSS).
- To assess ETVSS's ability to predict successful ETV outcomes in pediatric hydrocephalus based on individual characteristics.
Main Methods:
- A retrospective study of 121 pediatric hydrocephalus cases.
- Comparison of actual success rates with ETVSS-predicted probabilities at 6 and 24 months.
- Statistical analysis using Chi-square test, 95% confidence intervals, and Kaplan-Meier methods.
Main Results:
- ETVSS showed accurate prediction of outcomes at 24 months.
- Actual success rates for low, medium, and high-risk strata were 74%, 62%, and 41%, respectively.
- Predicted probabilities closely aligned with actual outcomes, particularly for moderate and low-risk groups.
Conclusions:
- The ETVSS is a reliable tool for predicting long-term ETV success rates in pediatric hydrocephalus.
- The score effectively stratifies patients into low, moderate, and high-risk groups.
- ETVSS can significantly aid clinical decision-making regarding ETV therapy.
Objective:
To validate the proposed endoscopic third ventriculostomy success score (ETVSS) for predicting successful ETV outcomes for pediatric hydrocephalus on the basis of individual characteristics.
Methods:
For 121 cases at our department from June 2007 to June 2010 at both 6 and 24 months, Actual successful rates were compared with Chi-square test and 95% confidence interval for low, moderate and high chance of success strata based on the ETVSS. Long-term successful probability was calculated with Kaplan-Meier methods.
Results:
The 6-month ETV successful rate was higher than the mean predicted probabilities of success for both moderate and low success strata, but slightly lower for the high chance of success strata. The ETVSS accurately predicted the outcomes at 24 months; the low, medium and high chance of success strata had actual success rates of 74% (37/50), 62% (28/45) and 41% (11/26) and mean predicted successful probabilities of 81.3%, 61.4% and 34.4% respectively.
Conclusion:
ETVSS may accurately predict the overall long-term successful rates in high, moderate and low-risk groups. Thus it will aid clinical decision-making through predicting the therapeutic effect of ETV.

