Obstructive Sleep Apnea Is Frequent in Patients with Hypertensive Intracerebral Hemorrhage and Is Related to Perihematoma Edema

Department of Neuroscience and Behavior, Ribeirão Preto School of Medicine, University of São Paulo, São Paulo, Brazil.
Cerebrovascular Diseases (Impact Factor: 3.75). 11/2009; 29(1):36-42. DOI: 10.1159/000255972
Source: PubMed


Obstructive sleep apnea (OSA) is related to increased systemic inflammation and arterial hypertension. We hypothesize that OSA is frequent in patients with acute hypertensive intracerebral hemorrhage (ICH) and is related to the perihematoma edema.
Thirty-two non-comatose patients with a hypertensive ICH underwent polysomnography in the acute phase. Perihematoma edema volume was measured on CT scans at admission, after 24 h (early control) and after 4-5 days (late control). The Spearman coefficient (r(s)) was used for correlations.
OSA occurred in 19 (59.4%) patients. The apnea-hypopnea index was correlated with relative edema at admission CT (r(s) = 0.40; p = 0.031), early CT (r(s) = 0.46; p = 0.011) and at late CT (r(s) = 0.59; p = 0.006).
OSA is highly frequent during the acute phase of hypertensive ICH and is related to perihematoma edema.

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    • "The apnea-hypopnea index (AHI), which measures apnea severity, is an independent predictor of mortality in these patients (5). We recently reported a relationship between OSA and perihematoma edema in patients with hypertensive ICH (2). "
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