Abstract
A 65-year-old man had an embolic stroke of both posterior cerebral arteries in 2002. Two years later he noted rapid improvement of the residual bilateral inferior quadrant anopia whenever he took 25 mg sildenafil. The improvement of scotomas was verified by visual field examinations and persisted reproducibly for 3–7 days. An overlay of a subtraction of functional magnetic resonance imaging (MRI) during visual stimulation before and after medication onto a T1-weighted MRI of the patient revealed additional activations along the margins of the old cerebral infarctions. These findings and the additional results of a perfusion MRI suggest that phosphodiesterase 5 inhibitors may prove beneficial in the rehabilitative course after ischemic strokes.
Abbreviations
- BA:
-
Brodman area
- FDG:
-
18F-Fluorodeoxyglucose
- fMRI:
-
Functional magnetic resonance imaging
- MTT:
-
Mean transit time
- PET:
-
Positron emission tomography
- rCBF:
-
Regional cerebral blood flow
- ROI:
-
Region of interest
References
Bense S, Janusch B, Schlindwein P, Bauermann T, Vucurevic G, Brandt T, Stoeter P, Dieterich M (2006) Direction-dependent visual cortex activation during horizontal optokinetic stimulation (fMRI study). Hum Brain Mapp 27:296–305
Jackson G, Gillies H, Osterloh I (2005) Past, present, and future: a 7-year update of Viagra (sildenafil citrate). Int J Clin Pract 59:680–691
Jagle H, Jagle C, Serey L, Yu A, Rilk A, Sadowski B, Besch D, Zrenner E, Sharpe LT (2004) Visual short-term effects of Viagra: double-blind study in healthy young subjects. Am J Ophthalmol 137:842–849
Koksal M, Ozdemir H, Kargi S, Yesilli C, Tomac S, Mahmutyazicioglu K, Mungan A (2005) The effects of sildenafil on ocular blood flow. Acta Ophthalmol Scand 83:355–359
Laties A, Sharlip I (2006) Ocular safety in patients using sildenafil citrate therapy for erectile dysfunction. J Sex Med 3:12–27
Rosengarten B, Schermuly RT, Voswinckel R, Kohstall MG, Olschewski H, Weissmann N, Seeger W, Kaps M, Grimminger F, Ghofrani HA (2005) Sildenafil improves dynamic vascular function in the brain: studies in patients with pulmonary hypertension. Cerebrovasc Dis 21:194–200
Stefanovic B, Warnking JM, Rylander KM, Pike GB (2005) The effect of global cerebral vasodilation on focal activation hemodynamics. Neuroimage 28:205–215
Zhang L, Zhang RL, Wang Y, Zhang C, Zhang ZG, Meng H, Chopp M (2005) Functional recovery in aged and young rats after embolic stroke: treatment with a phosphodiesterase type 5 inhibitor. Stroke 36:847–852
Zhang R, Wang Y, Zhang L, Zhang Z, Tsang W, Lu M, Chopp M (2002) Sildenafil (Viagra) induces neurogenesis and promotes functional recovery after stroke in rats. Stroke 33:2675–2680
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Schlindwein, P., Eicke, B.M., Stoeter, P. et al. Sildenafil improves scotoma after posterior cerebral infarctions: a case report. J Neurol 257, 674–677 (2010). https://doi.org/10.1007/s00415-009-5434-6
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DOI: https://doi.org/10.1007/s00415-009-5434-6