Key result
Doppler echocardiography accurately evaluates LIMA graft patency, detecting critical stenosis in ~90% of patients.
Why the study?
The feasibility of assessing internal mammary artery graft patency by Doppler echocardiography compared to angiography was studied.
Does Doppler echocardiography accurately assess the patency of grafted internal mammary artery compared to angiography in patients undergoing LIMA-to-LAD anastomosis?
Population
49 patients undergoing left internal mammary artery-to-left anterior descending coronary artery anastomosis
Comparison
Doppler echocardiography vs angiography
Design
Prospective observational study
Follow-up
Postoperative
Authors
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May support Doppler echocardiography as noninvasive LIMA graft screen; leaves open prospective validation versus angiography.
Observational (n=49)
Does Doppler echocardiography accurately assess the patency of grafted internal mammary artery compared to angiography in patients undergoing LIMA-to-LAD anastomosis?
Doppler echocardiography is a sensitive noninvasive screening modality for diagnosing critical narrowing of internal mammary artery grafts, potentially reserving angiography for cases with failed visualization or abnormal flow.
Dubey et al. (2000) conducted an observational in Left internal mammary artery-to-left anterior descending coronary artery anastomosis (n=49). Doppler echocardiography vs. Angiography was evaluated on Patency of grafted internal mammary artery. Doppler echocardiography visualized the left internal mammary artery in 44 of 49 patients, serving as a sensitive noninvasive screening modality to diagnose critical narrowing of grafts.
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