Key result
Transthoracic Doppler echocardiography accurately detected significant graft stenosis, with a coronary flow reserve <1.9 yielding 100% sensitivity and 98% specificity for mammary artery grafts.
Why the study?
Does transthoracic Doppler echocardiography accurately assess coronary artery bypass graft patency compared to angiography in patients with previous CABG?
Population
129 patients with previous CABG undergoing elective cardiac catheterisation for recurrent ischaemia.
Comparison
Transthoracic Doppler echocardiography recording… vs Angiography (reference standard).
Design
Cross-sectional
Authors
Loading...
Supports noninvasive Doppler assessment of CABG grafts; leaves open the need for prospective validation versus angiography.
Observational (n=129)
Yes
Does transthoracic Doppler echocardiography accurately assess coronary artery bypass graft patency compared to angiography in patients with previous CABG?
Transthoracic Doppler echocardiography with dipyridamole is a highly sensitive and specific non-invasive method for assessing CABG patency and detecting significant graft stenosis.
Fabio Chirillo (2001) conducted an observational in Previous CABG with recurrent ischaemia (n=129). Transthoracic Doppler echocardiography vs. Angiography was evaluated on Feasibility of identifying open grafts by Doppler and diagnostic accuracy for Doppler detection of significant (>= 70%) graft stenosis. Transthoracic Doppler echocardiography accurately detected significant graft stenosis, with a coronary flow reserve <1.9 yielding 100% sensitivity and 98% specificity for mammary artery grafts.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: