Prevalence of Cardiac Risk Factors in Ischemic Stroke in a University Medical Center in Tehran
Author(s):
Abstract:
Background
The relative importance of different risk factors of stroke may vary between various etiologies and countries. We sought to describe the cardiac risk factors of ischemic cerebral infarction in a university hospital in Tehran, Iran.Methods
This prospective, observational study was carried out on 58 consecutive patients admitted to the neurology ward of Baharloo Hospital in Tehran, Iran, with a diagnosis of established ischemic stroke or transient ischemic attack. Data regarding each patients demographic profile, clinical presentation, medical history (emphasis on risk factors), results of brain imaging, biochemical profile, and other diagnostic tests were recorded in a structured form. Diagnostic neurological studies comprised computed tomography scan of the head and brain, brain magnetic resonance imaging in ed patients, and Doppler ultrasonography of carotid arteries. Cardiologic studies consisted of standard 12-lead ECG, 24-hour Holter monitoring, and 2D transesophageal echocardiography (TEE) obtained over a 7-day period after the onset of symptoms. The recorded data were statistically analyzed for the percent¬- age, mean, and standard deviation of all the variables. SPSS, ver¬sion 22.0, for Windows was used for all the statistical analyses.Results
Atrial fibrillation was evident in respectively 6.9% and 15.5% of the ECGs and Holter monitoring cardiograms. The echocardiographic findings of our studied subjects are depicted in detail in Table 2. The most prevalent finding was aortic valve stenosis or calcification in 70.7% of the subjects, followed by aortic arch wall calcification in 55.2%. Patent foramen ovale was observed on the TEE of 14 (24.1%) patients, and 3 patients had mitral annulus calcification. Three patients had rheumatic heart disease. Echocardiography demonstrated simple and severe aortic arch atheroma in 30 (51.7%) and 11 (19.0%) subjects, respectively. Mean left ventricular ejection fraction was 52.67 (SD=5.63) among our participants; 9 (15.5%) of them had impaired left ventricular function (ejection fraction Conclusions
Different cardiac abnormalities were seen among stroke cases of unidentified causes. Because relatively high abnormalities were detected in these patients, the role of immediate cardiologic studiesespecially echocardiography and Holter monitoringin first-time stroke patients should be emphasized. Keywords:
Language:
English
Published:
Iranian Heart Journal, Volume:17 Issue: 1, Spring 2016
Pages:
57 to 63
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