Echocardiographic (TEE) Measurements
Mitral valve images from the intraoperative, pre-bypass TEE of 200 patients were retrospectively reviewed (Figure 1), and each patient’s mitral valve was scored using the same anatomic variables from the surgical complexity score (Table 1). All images were 2D TEE images, given that the study population consisted of patients undergoing surgery from 2009 to 2011, before the updated ASE guidelines were released in 2013, which newly incorporated 3D imaging. Fifty of the 200 TEE exams were analyzed by both echocardiographer/cardiac anesthesiologists to determine inter-rater reliability.