Noninvasive Pacemaker Stress Echocardiography as a Screening Test for Coronary Artery Disease in Patients With Atypical Angina and Permanent Pacemaker
Korean Circulation Journal
;
: 140-143, 2008.
Article
in English
| WPRIM
| ID: wpr-7158
ABSTRACT
BACKGROUND AND OBJECTIVES:
Making the noninvasive diagnosis of coronary artery disease in patients with a permanent pacemaker is difficult because of the inability to interpret electrocardiograms and the low specificity of perfusion scintigraphy. We evaluated the diagnostic accuracy of noninvasive pacemaker stress echocardiography (PASE) as a screening test for coronary artery disease in patients with atypical angina and a permanent pacemaker. SUBJECTS ANDMETHODS:
This a prospective study, and transthoracic stress-pacing echocardiography was performed on 15 patients (9 men and 6 women; age, mean age 71.1+/-11.0 years) with atypical angina and a permanent pacemaker. All the patients underwent noninvasive pacemaker-stress echocardiography by external programming (pacing the heart rate up to 150 beats per minute). Coronary angiography was performed on the 8 patients with positive PASE results. Significant coronary artery disease was defined as > or =70% stenosis in at least one major coronary artery.RESULTS:
The echocardiographic images were interpretable for all the patients. No significant side effects were observed. The left ventricular systolic function was preserved in all the patients (left ventricular ejection fraction; 63.5+/-8%). Only 5 (62.5%) of 8 patients showed significant coronary artery disease, as documented by coronary angiography.CONCLUSION:
Noninvasive PASE is a simple, rapid, safe and diagnostically efficient test for detecting coronary artery disease in patients with atypical angina and a permanent pacemaker. Larger studies are necessary to validate our findings.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pacemaker, Artificial
/
Coronary Artery Disease
/
Echocardiography
/
Mass Screening
/
Prospective Studies
/
Sensitivity and Specificity
/
Coronary Angiography
/
Constriction, Pathologic
/
Coronary Vessels
/
Coronary Stenosis
Type of study:
Diagnostic study
/
Observational study
/
Prognostic study
/
Screening study
Limits:
Humans
/
Male
Language:
English
Journal:
Korean Circulation Journal
Year:
2008
Type:
Article
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