|
KMID : 0368120080380030140
|
|
Korean Circulation Journal
2008 Volume.38 No. 3 p.140 ~ p.143
|
|
|
Noninvasive Pacemaker Stress Echocardiography as a Screening Test for Coronary Artery Disease in Patients With Atypical Angina and Permanent Pacemaker
|
|
Yoon Hee-Jung
Seung Ki-Bae
Kim Jae-Hyung
Youn Ho-Joong
Rho Tai-Ho
Jin Seung-Won
Lee Jong-Min
Lee Man-Young
Her Sung-Ho
Do Kyong-Rock
|
|
|
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 and Methods: 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 ≥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.
|
|
|
KEYWORD
|
|
|
Stress echocardiography, Coronary stenosis, Cardiac pacemaker, Artificial
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
   
|