Intracranial hemorrhage in patients with polycystic kidney disease.

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Abstract
To emphasize the important association of polycystic kidney disease and hypertensive cerebral hemorrhage, a registry of 900 consecutive cases of hemorrhagic stroke was reviewed. Eleven patients (1.2%) had intracranial hemorrhage (eight had hypertensive cerebral hemorrhage and the other three had aneurysmal subarachnoid hemorrhage) found to be associated with polycystic kidney disease. These 11 patients also accounted for 11% of the 98 cases of polycystic kidney disease during the 28-month study period. As verified by computed tomography, parenchymal hemorrhage occurred mainly in the putamen and the thalamus, the usual sites for hypertensive cerebral hemorrhage. One patient with cerebral hemorrhage was autopsied and one was studied angiographically, but in neither patient was an intracranial aneurysm identified. In the patients with polycystic kidney disease and intracranial hemorrhage, hypertension had been inadequately treated or even undetected; therefore, I emphasize early detection and more effective control of hypertension in patients with polycystic kidney disease for prophylaxis against hemorrhagic cerebrovascular events.