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Updated: May 12, 2026

Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation
Published on: October 15, 2021
A 7-Point Risk Stratification Tool for EVD Placement in Acute Intracerebral Hemorrhage: A Multivariable Analysis and
Mohsin Fayaz1, Farhaan Parvaiz Bhat1, Sarabjit Singh Chibber1
1Department of Neurosurgery, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India.
Insights
A new EVD-ICH score helps predict the need for external ventricular drain (EVD) insertion in patients with intracerebral hemorrhage (ICH). This bedside tool uses clinical and radiological factors to stratify risk, aiding treatment decisions.
Area of Science:
- Neurosurgery
- Neurology
- Critical Care Medicine
Background:
- Intracerebral hemorrhage (ICH) presents significant morbidity and mortality risks.
- Intraventricular extension (IVE) and hydrocephalus (HCP) often necessitate external ventricular drain (EVD) placement.
- Current guidelines lack objective criteria for EVD use in ICH patients.
Purpose of the Study:
- To identify clinical and radiological predictors of EVD insertion in spontaneous ICH.
- To develop a simple bedside scoring system, the EVD-ICH score, for decision support.
- To improve objective criteria for EVD management in ICH.
Main Methods:
- Prospective observational study of 100 adult spontaneous ICH patients.
- Collection of clinical and CT scan variables.
- Multivariable logistic regression and ROC analysis for predictor identification and score validation.
Main Results:
- Key predictors for EVD insertion included IVE, HCP, Glasgow Coma Scale (GCS) ≤ 8, hematoma volume ≥30 mL, and hypertension history.
- The 7-point EVD-ICH score demonstrated an AUC of 0.85 (95% CI: 0.78-0.92).
- An optimal cutoff of ≥3 provided 80% sensitivity and 77% specificity for predicting EVD need.
Conclusions:
- The EVD-ICH score offers a practical bedside tool for risk stratification in spontaneous ICH.
- The score predicts EVD probability from 8% to 92% based on score values.
- Further external validation and outcome assessment are recommended before widespread adoption.
Background:
Intracerebral hemorrhage (ICH) is associated with high morbidity and mortality. Intraventricular extension (IVE) and hydrocephalus (HCP) frequently prompt external ventricular drain (EVD) insertion, but objective criteria to guide EVD use are lacking.
Aims:
This article aims to identify clinical and radiological predictors of EVD insertion in spontaneous ICH and to develop a simple bedside scoring system (EVD-ICH score) to support decision-making.
Materials And Methods:
This is a prospective observational study of 100 consecutive adults with spontaneous nontraumatic ICH admitted to a tertiary-care center (March 2023 to February 2024). Clinical and CT variables were recorded. Multivariable logistic regression identified independent predictors of EVD insertion. A points-based score was created from adjusted odds ratios and internally validated using receiver operating characteristic (ROC) analysis.
Results:
Of 100 patients, predictors independently associated with EVD insertion were IVE, HCP, Glasgow coma scale (GCS) ≤ 8, hematoma volume ≥30 mL, and history of hypertension (HTN). The 7-point EVD-ICH score (IVE 2 pts, HCP 2 pts, GCS ≤8 1 pt, ICH ≥30 mL 1 pt, HTN 1 pt) achieved an area under the ROC curve (AUC) of 0.85 (95% CI: 0.78-0.92). Optimal cut-off ≥3 yielded a sensitivity of 80% and a specificity of 77%. Predicted EVD probability ranged from 8% (score 0) to 92% (score 7).
Conclusion:
The EVD-ICH score provides a concise bedside tool to stratify risk of requiring EVD in spontaneous ICH. External multicenter validation and assessment of impact on patient-centered outcomes are recommended before routine adoption.
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