Key result
Intraoperative transgastric Doppler identifies severe residual LVOT obstruction and correlates with postoperative TTE gradients.
Why the study?
Standard TEE views of the LVOT are limited by poor Doppler beam alignment with peak flow velocity, necessitating evaluation of transgastric imaging during intraoperative TEE.
Does intraoperative transgastric Doppler echocardiography accurately assess residual obstruction during LVOT surgery in children?
Observational (n=38)
No
Does intraoperative transgastric Doppler echocardiography accurately assess residual obstruction during LVOT surgery in children?
Intraoperative transgastric Doppler echocardiography is a reliable tool for predicting residual obstruction during pediatric LVOT surgery, correlating well with postoperative transthoracic echo.
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Transgastric TEE may improve LVOT Doppler alignment in children; leaves open need for validation against standard views.
Frommelt et al. (1998) conducted an observational in Left ventricular outflow tract (LVOT) obstruction/disease requiring surgery (n=38). Intraoperative transgastric echo assessment vs. Early postoperative transthoracic echo was evaluated on Identification of severe residual obstruction and correlation with postoperative transthoracic echo gradient. Intraoperative transgastric Doppler assessment of the LVOT identified severe residual obstruction in 7 patients and correlated well with early postoperative transthoracic echo gradients.
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