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The predictive accuracy of the carotid bruit as a acreening tool for significant extracranial carotid stenosis.

Author

Ma. Teresa  B. Abola

Related Institution

Adult Cardiology - Philippine Heart Center

Publication Information

Publication Type
Research Project
Date
January 1-December 1, 1993

Abstract

The  objectives of the study are (1) to describe a standard method for the clinical detection of a carotid bruit among adult Filipino patients with or without symptoms of cerebrovascular disease. (2) to determine the accuracy of this method in terms of sensitivity, specificity, and likelihood ratios in the detection of significant ipsilateral extracranial carotid stenosis. There were 100 patients, and hence, 200 arteries. The population was equally distributed according to sex and age. Of the 200 cases examined, forty-two percent had lateralizing symptoms, 38% had non-lateralizing symptoms, and the rest were symptomatic. Sixty-four cases were with carotid bruits (Group I) and 136 were without bruits (Group II) Eighty-four percent of Group I had diffuse bruits (Group lA) and Group I B had localized bruits. Group I and II differed because hypertension was noted higher in Group I. The following observations were made. (l) The standardized method of clinical detection of a carotid bruit results in high clinical agreement of the observers and may therefore be, reproduced by other physicians. (2) The absence of a carotid bruit is highly specific for the absence of significant carotid disease (moderate and severe stenosis) regardless of symptomatology. (3) The presence of a carotid bruit is not a good screening test for both moderate and severe grades of stenosis.

Physical Location

LocationLocation CodeAvailable FormatAvailability
Philippine Heart Center Medical Library PHC.R.010.93 Fulltext Print Format

 
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