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Published on: October 20, 2017
Hemicraniectomy and durotomy for malignant middle cerebral artery infarction
Michael J Schneck1, Thomas C Origitano
1Department of Neurology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL 60153, USA. mschneck@lumc.edu
Insights
Decompressive hemicraniectomy for malignant MCA infarction is a salvage procedure with potential benefits in selected patients. Patient selection, timing, and hemispheric dominance are crucial factors influencing outcomes.
Area of Science:
- Neurosurgery
- Neurology
- Critical Care Medicine
Background:
- Malignant middle cerebral artery (MCA) infarction poses a significant threat, often necessitating aggressive interventions.
- Decompressive hemicraniectomy and durotomy serve as a salvage procedure for severe MCA infarction.
- Optimal patient selection and timing for hemicraniectomy remain critical but undefined.
Purpose of the Study:
- To review the clinical outcomes and decision-making process for decompressive hemicraniectomy in malignant MCA infarction.
- To highlight the importance of patient selection criteria, including age and comorbidities.
- To discuss the implications of hemispheric dominance and the timing of intervention.
Main Methods:
- Review of current literature and clinical practice regarding hemicraniectomy for malignant MCA infarction.
- Analysis of factors influencing patient selection and surgical outcomes.
- Discussion of the syndrome of the trephined and cranial reconstruction.
Main Results:
- Hemicraniectomy can lead to reasonable outcomes in carefully selected patients.
- Older age and comorbidities may predict poorer long-term benefits.
- Data on dominant versus nondominant hemispheric infarction are limited, but some independence is achievable.
- The optimal timing for intervention is not clearly defined.
- Syndrome of the trephined requires awareness for potential cranial reconstruction.
Conclusions:
- Decompressive hemicraniectomy for malignant MCA infarction is an individualized, case-by-case decision.
- Patient and family preferences, along with clinician judgment, are paramount.
- Further research is needed to refine selection criteria and optimize timing.
Abstract:
Decompressive surgery with hemicraniectomy and durotomy for malignant MCA infarction remains a salvage procedure but can be associated with reasonable clinical outcomes in highly selected patients. This selection of patients appropriate for intervention is of the utmost importance, but exact criteria remain to be defined; older age and increased numbers of associated medical comorbidities seem to define a group of patients who would not derive long term benefit, however. The determination as to whether or not surgery is equally beneficial for dominant or nondominant hemispheric infarction is hampered by lack of good comparative data, but selected case series suggest that some patients who have dominant hemispheric infarction achieve a reasonable degree of independence. Although a well-defined principle of stroke practice is that "time is brain," there are no clear data as to when intervention should be done, as there are some patients who have large MCA infarction and who may not progress to cerebral herniation. Clinicians managing the growing population of patient status post hemicraniectomy should also be aware of this process of the syndrome of the trephined and the potential for resolution that may prompt earlier cranial reconstruction. At present, the decision to proceed with this aggressive intervention of hemicraniectomy and durotomy for large ischemic infarction remains a case-by-case individualized approach, based on patient and family preferences and clinicians' subjective perspective as to patients' potential for clinical recovery.
