Related Experiment Video
Updated: Aug 9, 2025
05:03
Brain Death Induction in Mice Using Intra-Arterial Blood Pressure Monitoring and Ventilation via Tracheostomy
Published on: April 17, 2020
5.6K
Variability across countries for brain death determination in adults.
Fang Yuan1, Huiping Li1, Tao Pan1
1Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
Brain Injury
|February 21, 2023
Summary
Brain death determination guidelines differ globally. This study found Chinese and French criteria stricter than those in the USA, UK, and Germany, with minimal discrepancies between clinical and ancillary tests.
Area of Science:
- Neurology
- Critical Care Medicine
- Forensic Medicine
Background:
- Brain death determination protocols exhibit significant international variability.
- Standardizing diagnostic procedures is crucial for consistent clinical practice and legal recognition.
Purpose of the Study:
- To compare the diagnostic procedures for determining brain death in adult patients across five distinct countries.
- To evaluate the concordance and accuracy of various ancillary tests used in brain death diagnosis.
Main Methods:
- A comparative analysis of consecutive comatose patients undergoing brain death determination between June 2018 and June 2020.
- Assessment of technical specifications, completion rates, and positive rates of diagnostic criteria from France, China, USA, UK, and Germany.
- Investigation of the accuracy, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of ancillary tests.
Main Results:
- 199 patients were included; brain death was diagnosed in 65.8% (France), 66.3% (China), and 67.7% (USA, UK, Germany).
- Electroencephalogram (EEG) and somatosensory evoked potentials (SSEPs) demonstrated higher sensitivity and PPV compared to transcranial Doppler (TCD).
- EEG: 92.2%-92.3% sensitivity/PPV; SSEPs: 95.5%-98.5% sensitivity/PPV; TCD: 84.3%-86.0% sensitivity/PPV.
Conclusions:
- Chinese and French brain death determination criteria are notably stricter than those in the USA, UK, and Germany.
- The study found a small discrepancy between clinical assessments and ancillary tests in confirming brain death.
- Harmonizing international guidelines for brain death determination warrants further consideration.
