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Is the ICH score a valid predictor of mortality in intracerebral hemorrhage?
Dawn M Meyer1, Kamilla Begtrup2, James C Grotta3
1Department of Neurosciences, University of California San Diego, La Jolla, California.
Insights
The intracerebral hemorrhage (ICH) score effectively predicts mortality in patients. Both baseline and 72-hour ICH scores are valid predictors, with the 72-hour score offering improved sensitivity for mortality prediction.
Area of Science:
- Neurology
- Clinical Medicine
Background:
- Intracerebral hemorrhage (ICH) is a critical condition with significant mortality.
- The ICH score is a validated tool for predicting 30-day mortality in ICH patients.
Purpose of the Study:
- To validate the ICH score in a diverse international patient cohort.
- To evaluate the utility of a 72-hour ICH score for mortality prediction.
Main Methods:
- Analysis of data from 399 patients in the Novo Nordisk trial F7ICH-1371.
- Calculation of sensitivity, specificity, and positive predictive value (PPV) to assess predictive accuracy.
Main Results:
- Both baseline and 72-hour ICH scores demonstrated high specificity but low sensitivity.
- The positive predictive value (PPV) ranged from 57% to 76%.
- Baseline ICH score showed higher specificity (95%) than the 72-hour score (89%), while the 72-hour score had higher sensitivity (75%) than the baseline score (36%).
Conclusions:
- The baseline ICH score offers a reasonable PPV for predicting mortality.
- The 72-hour ICH score enhances sensitivity in mortality prediction.
- ICH scores, whether at baseline or 72 hours, are valid tools for practitioners to improve 30-day mortality prediction in ICH patients.
Purpose:
The intracerebral hemorrhage (ICH) score utilizes a 0- to 6-point scoring system to predict 30-day mortality in ICH patients. The purpose of this analysis was to (a) validate the ICH score in an international, heterogeneous population of ICH patients; and (b) assess the usefulness of a 72-h ICH score.
Data Sources:
Analyses were based on data from 399 patients in the Novo Nordisk trial F7ICH-1371. The ICH score's ability to predict mortality was determined by calculating the sensitivity, specificity, and positive predictive value (PPV).
Conclusions:
Both the baseline and 72-h ICH score had high specificity but low sensitivity resulting in an overall PPV of 57%-76%. Specificity of the ICH score was higher in the baseline ICH score (95%) as compared to the 72-h score (89%). Sensitivity of the ICH score was higher in the 72-h ICH score (75%) as compared to the baseline score (36%).
Implications For Practice:
The baseline ICH score provides reasonable PPV while the 72-h score provides higher sensitivity. ICH scores obtained at baseline and/or 72 h are valid and may help practitioners to more accurately predict 30-day mortality in ICH patients.
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