Key result
Transesophageal Doppler of descending aortic flow correlates strongly with ascending measurements, reflecting LV performance.
Why the study?
It was unclear whether blood flow velocity signals obtained by esophageal continuous-wave Doppler from the descending aorta reflect changes in left ventricular performance.
Does transesophageal continuous-wave Doppler of the descending aorta accurately reflect left ventricular performance in patients undergoing myocardial revascularization?
Comparison
Descending aortic blood flow velocity signals vs ascending aortic signals and baseline measurements
Design
Observational study using transesophageal continuous-wave Doppler
Authors
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May support descending aortic Doppler for LV assessment; hypothesis-generating and requires validation before clinical use.
Observational (n=26)
Does transesophageal continuous-wave Doppler of the descending aorta accurately reflect left ventricular performance in patients undergoing myocardial revascularization?
Effect estimate: r = 0.91
Transesophageal continuous-wave Doppler of the descending aorta provides a minimally invasive method to assess left ventricular performance indices that correlate well with ascending aortic measurements.
Thys et al. (1988) conducted an observational in Myocardial revascularization (n=26). Transesophageal continuous-wave Doppler vs. Ascending aortic blood flow / baseline values was evaluated on Correlation of maximum blood flow volume acceleration (Accv) between ascending and descending aorta (r = 0.91). Transesophageal continuous-wave Doppler measurement of descending aortic blood flow acceleration correlated well with ascending aortic measurements (r = 0.91) and reflected left ventricular performance.
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