Recurrence of Bleeding in Patients With Primary Intracerebral Hemorrhage

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Abstract
Background and Purpose Rebleeding in patients with primary intracerebral hemorrhage is considered uncommon, but there are no precise data to support this opinion. The purpose of this study was to assess the incidence and predictors of recurrent bleeding in survivors of primary intracerebral hemorrhage. Methods As part of a prospective study, 112 survivors of a first primary intracerebral hemorrhage were followed up for a mean period of 84.1 months after their discharge. To ascertain risk factors that may influence rebleeding, several demographic, medical history, clinical, and laboratory variables were collected and analyzed. Results Twenty-four percent (27/112) of survivors experienced one or more rebleedings during the follow-up period, in 8 cases (30%) in the first year of follow-up; in the others recurrence occurred later, up to 11.5 years. Rebleeding had a high mortality rate: 70% of patients died as a consequence of their second or third hemorrhage. Univariate and multivariate analyses showed that lobar location of the first hemorrhage was the only significant predictor of rebleeding. Patients with rebleeding were more frequently older, more often had a history of previous transient ischemic attack or ischemic stroke, and less often had hyperlipidemia than patients without rebleeding, although these correlations did not reach statistical significance. During follow-up, poor control of arterial hypertension was found in 7% of hypertensive patients without rebleeding and in 47% of hypertensive patients with rebleeding. Conclusions Our study showed that rebleeding after a first primary intracerebral hemorrhage is not as uncommon as is usually believed. The risk of rebleeding seems to be particularly high after hemorrhage at the junction of the gray and white matter, a site regarded as typical of hemorrhages due to amyloid angiopathy, and when arterial hypertension is poorly controlled.

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