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Habitual snoring as a risk factor for brain infarction

J P Neau¹, J C Meurice, J Paquereau

¹Institut Universitaire Veille-Sommeil, France.

Acta Neurologica Scandinavica

|July 1, 1995

Summary

Habitual snoring significantly increases the risk of ischemic stroke, even after accounting for other risk factors. Early identification and prevention are crucial, particularly for older males with hypertension.

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Area of Science:

Neurology
Cardiovascular Health
Sleep Medicine

Background:

Cerebral ischemia, or stroke, is a major cause of disability and mortality.
Habitual snoring is a common condition, often associated with sleep apnea, but its independent association with stroke requires further investigation.

Purpose of the Study:

To investigate the association between habitual snoring and the risk of ischemic stroke.
To determine if habitual snoring is an independent risk factor for stroke, even after adjusting for known confounding factors.

Main Methods:

A case-control study was conducted with 133 patients diagnosed with ischemic stroke and 133 matched controls.
Data on snoring habits, sleep patterns, and traditional stroke risk factors (hypertension, arrhythmia, obesity) were collected via structured interviews and questionnaires.

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Stroke diagnosis was confirmed using brain computed tomography or magnetic resonance imaging.

Main Results:

The prevalence of habitual snoring was significantly higher in stroke patients (23.3%) compared to controls (8.3%), yielding an odds ratio of 3.4.
After adjusting for matching variables and confounding factors, habitual snoring remained a significant risk factor for stroke (adjusted odds ratio: 2.9).
The risk of ischemic stroke was notably higher in older male patients with arterial hypertension who habitually snored.

Conclusions:

Habitual snoring is an independent risk factor for ischemic stroke.
Healthcare providers should routinely inquire about snoring, especially in older male patients with hypertension.
Early intervention and preventive measures for habitual snoring may help reduce stroke incidence.