Clinical Study
Description of the Vasospasm Phenomena following Perimesencephalic Nonaneurysmal Subarachnoid Hemorrhage
Table 4
Vasospasm after PM-NASAH versus ASAH.
| | PM-NASAH VS in our series | ASAH VS in the literature |
| Incidence | 49.2% | 70% [23] | Clinical significance | None | Ischemic neurological symptoms in 50% of large artery VS [16] | Spasm onset* | 4.9 d | 3 d [23] | Day of max. velocity* | 7.03 d | 6–8 d [23] | Spasm resolution* | 15.5 d | 2-3 weeks [23] |
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Average number of days/weeks after hemorrhage.
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