Description of the vasospasm phenomena following perimesencephalic nonaneurysmal subarachnoid hemorrhage.

Abstract:

BACKGROUND:Perimesencephalic nonaneurysmal subarachnoid hemorrhage (PM-NASAH) is characterized by a benign course compared with aneurysmal SAH. While vasospasm (VS) after aneurysmal SAH is considered responsible for serious complications, VS post-PM-NASAH is not well documented. Our purpose was to characterize the incidence and course of VS among 63 patients--one of the largest databases of PM-NASAH patients with documented blood flow velocities in the literature. METHODS:Data from 63 patients that were admitted with PM-NASAH from 2000 to 2012 and underwent transcranial Doppler tests to assess cranial vessel flow velocity was analyzed. RESULTS:On average, the maximal flow velocity was measured on the 7th day after hemorrhage. Higher risk for VS was associated with younger age, female sex, and higher Hunt and Hess scores, a lower risk for patients treated with statins (P < 0.05). Using velocity thresholds for diagnosis of VS, 49.2% showed evidence of VS. This is the first description of blood flow velocities in PM-NASAH. VS average onset was on the 4th day, average cessation on day 15 after hemorrhage. No patients showed clinical manifestation of VS. CONCLUSIONS:VS post-PM-NASAH is not as rare as previously believed. However, its lack of clinical significance raises questions regarding the need for diagnosis and may suggest a less intensive treatment protocol.

journal_name

Biomed Res Int

authors

Prat D,Goren O,Bruk B,Bakon M,Hadani M,Harnof S

doi

10.1155/2013/371063

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

371063

eissn

2314-6133

issn

2314-6141

journal_volume

2013

pub_type

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