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Related Experiment Video

Updated: Aug 5, 2025

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ZJUSAH Classification: A New Classification for Primary Brainstem Hemorrhage.

Jingyi Zhou1, An Ping1, Jizhong Mao1

  • 1Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China.

Life (Basel, Switzerland)
|March 29, 2023
PubMed
Summary

This study optimized the ZJUSAH classification for primary brainstem hematoma, improving prognostic predictions for survival and consciousness recovery. The refined system aids in selecting treatments for brainstem hemorrhage patients.

Keywords:
multiple logistic regressionpredictive factorsprimary brainstem hemorrhagestate of consciousness

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Area of Science:

  • Neurology
  • Neurosurgery
  • Radiology

Background:

  • Primary brainstem hematoma is a severe neurological condition with significant mortality.
  • Accurate classification systems are crucial for predicting outcomes and guiding treatment strategies.
  • The existing ZJUSAH classification requires refinement for better prognostic accuracy.

Purpose of the Study:

  • To analyze and enhance the ZJUSAH classification system for primary brainstem hematoma.
  • To evaluate the system's effectiveness in predicting 30-day survival and 90-day consciousness recovery.
  • To establish an optimized CT-based classification for improved treatment selection and prognostic prediction.

Main Methods:

  • Retrospective review of 211 patients with primary brainstem hemorrhage (January 2014 - October 2020).
  • Evaluation of 30-day survival and 90-day consciousness recovery using the National Institutes of Health Stroke Scale score.
  • Application of univariate logistic regression and multivariate Cox regression analyses for prognostic modeling.

Main Results:

  • Overall 30-day survival rate was 69.7%.
  • Survival rates varied by ZJUSAH type: Type 1 (95%), Type 2 (77.8%), Type 3 (63.2%).
  • Consciousness recovery rates also differed: Type 1 (63.2%), Type 2 (61.9%), Type 3 (30.2%).
  • Hematoma volume >12.4 mL in Type 3 patients correlated with worse consciousness outcomes.
  • ZJUSAH classification effectively predicted 30-day survival in conservatively treated patients.

Conclusions:

  • The ZJUSAH classification can be optimized by incorporating hematoma volume, particularly for Type 3 cases.
  • The optimized CT-based classification system improves prognostic prediction for primary brainstem hematoma.
  • This refined system aids in clinical decision-making for treatment selection and outcome forecasting.