Value of dobutamine stress echocardiography for diagnosis of coronary artery disease in patients with left bundle branch blockage

Abstract

We concluded that DSE is a very sensitive, specific and accurate non-invasive test for identification of CAD, both in left anterior descending and in left circumflex and right coronary artery territories of patients with LBBB.

Transthoracic Doppler Echocardiographic Coronary Flow Imaging in Identification of Left Anterior Descending Coronary Artery Stenosis in Patients with Left Bundle Branch Block

“…To our knowledge, only a few studies 37,38 have compared echocardiography with MPS during dobutamine infusion in patients with LBBB, and so far, only one has compared them during dipyridamole infusion. Vigna et al 39 compared dipyridamole stress echocardiography (DSE) for predicting CADs in patients with complete LBBB and found that DSE is, at least, as accurate as dipyridamole sestamibi scintigraphy for predicting CAD in patients with complete LBBB and tends to be more specific in those patients with underlying LV dilatation.…”

Which test for CAD should be used in patients with left bundle branch block?

“…Yanik et al 16 studied 30 patients with left bundle branch block undergoing both dobutamine stress echocardiography and coronary angiography. The sensitivity of dobutamine stress echocardiography for identifying ischemia in the left anterior descending territory was 82%, the specifi city was 95%, and the diagnostic accuracy was 90%.…”

Non-invasive assessment of coronary artery disease in patients with left bundle branch block

“…Yanik et al studied 30 patients with LBBB and left ventricular dysfunction and found that dobutamine stress echocardiography had a sensitivity of 82%, specificity 95% and an overall diagnostic accuracy of 90% [36]. One of the largest studies employing stress echocardiography was a prospective evaluation of 64 patients in a multi-centre study by Geleijnse et al [40,37].…”