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Neurology. 2002 Jul 9;59(1):134-6.

Female gender as a risk factor for hypokalemia and QT prolongation after subarachnoid hemorrhage.

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Department of Neurosurgery, National Defense Medical College, Tokorozawa, Saitama, Japan.


Subarachnoid hemorrhage (SAH) often causes hypokalemia and QT prolongation. The sex disparities among 73 patients with SAH and 96 control subjects were examined. On the first day of SAH, the mean serum potassium level was significantly lower and the mean corrected QT interval was significantly longer in the female SAH group compared with either the female control or male SAH group. These findings suggest female susceptibility to hypokalemia and QT prolongation after SAH.

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