Prajapati, M., Yadav, N., Gandhi, H., Arora, V., Gujja, S., Sachan, P., Patel, S. (2021). Measurement of coronary sinus blood flow using transesophageal echocardiography to estimate the adequacy of revascularization in patients undergoing off-pump coronary artery bypass grafting. test, 15(2), -. doi: 10.4103/ejca.ejca_3_21
Mrugesh Prajapati; Nikhil Yadav; Hemang Gandhi; Varun Arora; Srikanth Gujja; Prahya Sachan; Sanjay Patel. "Measurement of coronary sinus blood flow using transesophageal echocardiography to estimate the adequacy of revascularization in patients undergoing off-pump coronary artery bypass grafting". test, 15, 2, 2021, -. doi: 10.4103/ejca.ejca_3_21
Prajapati, M., Yadav, N., Gandhi, H., Arora, V., Gujja, S., Sachan, P., Patel, S. (2021). 'Measurement of coronary sinus blood flow using transesophageal echocardiography to estimate the adequacy of revascularization in patients undergoing off-pump coronary artery bypass grafting', test, 15(2), pp. -. doi: 10.4103/ejca.ejca_3_21
Prajapati, M., Yadav, N., Gandhi, H., Arora, V., Gujja, S., Sachan, P., Patel, S. Measurement of coronary sinus blood flow using transesophageal echocardiography to estimate the adequacy of revascularization in patients undergoing off-pump coronary artery bypass grafting. test, 2021; 15(2): -. doi: 10.4103/ejca.ejca_3_21

Measurement of coronary sinus blood flow using transesophageal echocardiography to estimate the adequacy of revascularization in patients undergoing off-pump coronary artery bypass grafting

The Egyptian Journal of Cardiothoracic Anesthesia
Volume 15, Issue 2, August 2021    PDF (2.2 M)
DOI: 10.4103/ejca.ejca_3_21
Authors
Mrugesh Prajapati; Nikhil Yadav; Hemang Gandhi; Varun Arora; Srikanth Gujja; Prahya Sachan; Sanjay Patel
Abstract
Introduction
Revascularization of coronary artery increases the blood flow in the coronary sinus (CS) too. The study aimed to measure the CS blood flow using transesophageal echocardiography (TEE) to estimate the adequacy of revascularization in patients undergoing off-pump coronary artery bypass grafting.
Patients and methods
After ethical committee approval, 100 patients scheduled for elective coronary artery bypass grafting were included in this study. After induction of balanced anesthesia according to institutional protocol, a 5-Hz multiplane phased-array TEE probe was inserted into patients’ esophagus, and the following parameters were calculated at pre-revascularization and post-revascularization periods: velocity time integral of CS, coronary sinus diameter, coronary sinus cross-section area, and coronary sinus blood flow (CSBF) per beat and per minute.
Results
Our study showed a statistically significant increase in velocity time integral in the post-revascularization period as compared with the pre-revascularization period (<0.001). There was significant increment in mean CS diameter in the post-revascularization period as compared with the pre-revascularization period (0.79 vs.0.68 cm) (<0.001). There was a significant increase in CSBF per minute in the post-revascularization period (363.8±80.55 ml) as compared with the pre-revascularization period (218.9±46.61 ml) (<0.001).
Conclusion
TEE is a superior modality to evaluate CSBF before and after coronary artery bypass revascularization to determine the adequacy of surgical revascularization in real time during off-pump coronary artery bypass revascularization.
Keywords
Coronary artery bypass grafting; coronary sinus blood flow; Transesophageal Echocardiography
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