Neurology Medical News about perimesencephalic nonaneurysmal hemorrhage;anosmia

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Anosmia after perimesencephalic nonaneurysmal hemorrhage
Stroke, 06/16/09

Greebe P et al. – Anosmia occurs in 1 of every 16 pts with perimesencephalic hemorrhage, which is lower than previously reported rates after coiling in pts with subarachnoid hemorrhage but higher than rates after coiling for unruptured aneurysms. These data suggest that blood in the vicinity of the olfactory nerves plays a role in development of anosmia.

Methods

Study of the prevalence of anosmia in pts with nonaneurysmal perimesencephalic hemorrhage
Assessment of all pts admitted with perimesencephalic hemorrhage between 1983-2005
Structured questionnaire for pt interview
Calculation of proportion of pts with anosmia with corresponding 95% CIs

Results

Of 148 pts, 9 (6.1%) reported anosmia shortly after perimesencephalic hemorrhage
Anosmia disappeared in 2 pts after 8-12 wks
Anosmia persisted after mean follow-up of 9 yrs in 7 pts

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