Document Detail

Trapping and revascularization for a dissecting aneurysm of the proximal posteroinferior cerebellar artery: technical case report and review of the literature.
MedLine Citation:
PMID:  12182429     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE AND IMPORTANCE: Subarachnoid hemorrhage caused by an isolated dissection of the proximal portion of the posteroinferior cerebellar artery (PICA) is a rare problem. The optimal treatment to use for patients presenting with this clinical scenario varies and therefore is controversial in the literature. We report a patient in whom this problem was treated effectively with trapping of the diseased segment and revascularization of the PICA. We report this case to review this rare topic and to present our perspective on the indications for and the effectiveness of trapping and revascularization for proximal PICA dissections that cause hemorrhage. CLINICAL PRESENTATION: A 55-year-old man was transferred to our institution and admitted for Hunt and Hess Grade IV subarachnoid hemorrhage, which improved to Hunt and Hess Grade III after ventricular drainage. Imaging revealed the source of the hemorrhage to be a pseudoaneurysm related to the dissection of the proximal portion of the PICA. INTERVENTION: Three days after the initial bleeding episode, we operated on the patient. After the occipital artery was prepared for bypass, the diseased segment was trapped. The occipital artery-to-PICA anastomosis was then immediately performed distal to the trapped segment. CONCLUSION: On the basis of our experience, the literature regarding this topic, and the anatomy of the perforators of the PICA, we think that the best treatment for a pseudoaneurysm located within the first three segments of the PICA is trapping of the diseased segment followed by revascularization distal to the trapped segment. This approach should prevent rehemorrhage and should avoid iatrogenic ischemic complications of the brainstem.
Mir Jafer Ali; Bernard R Bendok; Rabih G Tawk; Christopher C Getch; H Hunt Batjer
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Neurosurgery     Volume:  51     ISSN:  0148-396X     ISO Abbreviation:  Neurosurgery     Publication Date:  2002 Jul 
Date Detail:
Created Date:  2002-08-16     Completed Date:  2003-01-30     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  United States    
Other Details:
Languages:  eng     Pagination:  258-62; discussion 262-3     Citation Subset:  IM    
Department of Neurological Surgery, Northwestern University Medical School, Chicago, Illinois 60611, USA.
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MeSH Terms
Anastomosis, Surgical
Aneurysm, Dissecting / radiography,  surgery*
Aneurysm, False / radiography,  surgery*
Cerebellum / blood supply*
Cerebral Angiography
Cerebral Arteries / radiography,  surgery
Cerebral Revascularization / methods*
Follow-Up Studies
Intracranial Aneurysm / radiography,  surgery*
Middle Aged
Neurologic Examination
Subarachnoid Hemorrhage / radiography,  surgery*
Tomography, X-Ray Computed

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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