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Postresuscitation encephalopathy. Current views, management, and prognostication
Boby Varkey Maramattom1, Eelco F M Wijdicks
1Division of Critical Care Neurology and Neurology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.
The Neurologist
|July 2, 2005
Summary
Predicting neurologic outcome after cardiac arrest is crucial. Key indicators include pupillary reflexes, motor responses, somatosensory evoked potentials, and MRI findings, aiding in patient prognostication.
Area of Science:
- Neurology
- Critical Care Medicine
Background:
- Cardiac arrest leads to high mortality and significant morbidity from postresuscitation encephalopathy.
- Over half of patients achieving return of spontaneous circulation die during hospitalization, with few survivors avoiding neurologic disability.
Purpose of the Study:
- To review parameters for predicting neurologic outcome in patients following cardiac arrest.
- To discuss the combination of clinical examination and ancillary investigations for accurate prognostication.
Main Methods:
- Review of clinical examination findings.
- Evaluation of ancillary investigations for predictive value.
- Discussion of combined prognostic parameters.
Main Results:
- Few parameters strongly predict outcome in post-cardiac arrest coma.
- Key predictors include pupillary light reflexes and motor responses at 3 days.
- Absent somatosensory evoked potentials and diffuse MRI changes are also significant indicators.
Conclusions:
- Understanding the central nervous system impact of cardiac arrest is vital for prognostication.
- Induced hypothermia represents a novel therapeutic advancement in managing these patients.