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Neurological recovery after decompressive craniectomy for massive ischemic stroke
Arnold Cheung1, Christopher K Telaghani, Jianli Wang
1Department of Neurological Surgery, Pennsylvania State University College of Medicine, M. S. Hershey Medical Center, Hershey, PA 17033, USA.
Neurocritical Care
|December 27, 2005
Summary
Decompressive craniectomy aids functional recovery after massive stroke. Brain imaging reveals neural activity in both hemispheres, suggesting decompression alone may be preferable to infarct resection.
Area of Science:
- Neuroscience
- Neurosurgery
- Radiology
Background:
- Decompressive craniectomy is effective for reducing mortality in massive hemispheric cerebral infarction.
- The patterns of functional recovery post-decompressive craniectomy remain unclear.
- The appropriateness of infarct resection (strokectomy) versus decompression alone is debated.
Observation:
- Functional magnetic resonance imaging (f-MRI) assessed functional recovery in three patients 13-26 months after decompressive craniectomy for massive ischemic stroke.
- Brain activation was studied during hand-gripping and foot-movement tasks.
- Clinical follow-up was integrated with f-MRI results.
Findings:
- f-MRI showed sensorimotor cortex activation in the contralateral hemisphere.
- Lesser activation was observed in the infarcted hemisphere, with peri-infarct activity in two patients.
- No activation occurred within the initial infarction area; all patients showed neurological improvement.
Implications:
- Patients can achieve functional recovery through activation in both hemispheres after decompressive craniectomy.
- Peri-infarct recovery suggests decompressive craniectomy alone may be superior to strokectomy.
- This supports decompression as a potentially safer approach, minimizing damage to adjacent brain tissue.