Key result
Electrical velocimetry demonstrated limited accuracy and precision for measuring cardiac output during cesarean delivery compared to transthoracic echocardiography, with a percentage error of 62% and a correlation coefficient of 0.397.
Why the study?
The accuracy and interchangeability of stroke volume and cardiac output measured by electrical velocimetry compared with transthoracic echocardiography during cesarean delivery required evaluation.
Does electrical velocimetry accurately measure cardiac output and stroke volume compared to transthoracic echocardiography in parturients during cesarean delivery?
Population
20 parturients
Comparison
Electrical velocimetry vs transthoracic echocardiography
Design
Prospective observational study
Authors
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Agreement between methods for cardiac output in cesarean delivery is uncertain; leaves open need for validation before clinical interchangeability.
Observational (n=20)
No
Does electrical velocimetry accurately measure cardiac output and stroke volume compared to transthoracic echocardiography in parturients during cesarean delivery?
Effect estimate: Pearson's r 0.397
p-value: p=<0.001
Electrical velocimetry has limited accuracy and precision compared to transthoracic echocardiography for measuring cardiac output during cesarean delivery, though it offers moderate trending ability.
Feng et al. (2020) conducted an observational in Elective cesarean delivery (n=20). Electrical velocimetry vs. Transthoracic echocardiography was evaluated on Correlation of cardiac output measured by electrical velocimetry and transthoracic echocardiography (Pearson's r 0.397, p=<0.001). Electrical velocimetry demonstrated limited accuracy and precision for measuring cardiac output during cesarean delivery compared to transthoracic echocardiography, with a percentage error of 62% and a correlation coefficient of 0.397.
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