Key result
Intraoperative transesophageal echocardiography successfully detected a rare atrioventricular groove separation during weaning from cardiopulmonary bypass after aortic valve replacement.
Case Report (n=1)
Intraoperative TEE is valuable for the early detection of rare but severe complications like atrioventricular groove separation during aortic valve surgery.
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May enable intraoperative TEE detection of rare atrioventricular groove separation; leaves open prospective validation before routine adoption.
Atrioventricular groove separation is a rare complication of mitral valve surgery. We present a case occurring during aortic valve surgery that was detected by the anesthesiologist using transesophageal echocardiography (TEE). During weaning from cardiopulmonary bypass after uneventful replacement of a severely calcified aortic valve, blood flow was seen on TEE leaving the left ventricular outflow tract just below the annulus of the aortic valve. This blood flow expanded into the aorto-mitral curtain during systole, consistent with atrioventricular groove separation. We review the pathophysiology behind groove separations and discuss diagnosis of these rare conditions using TEE.
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Sreeram et al. (2018) conducted a case report in Atrioventricular groove separation after aortic valve surgery (n=1). Transesophageal echocardiography (TEE) was evaluated on Detection of atrioventricular groove separation. Intraoperative transesophageal echocardiography successfully detected a rare atrioventricular groove separation during weaning from cardiopulmonary bypass after aortic valve replacement.
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