Table 2. Intraoperative Variables by PAC Type

* Any use of IABP (pre-, intra-, or postoperative).

PAC = pulmonary artery catheter; %Miss = percent of missing observations for respective variable; IQR = intraquartile range; CPB = cardiopulmonary bypass; IABP = intra-aortic balloon pump; TEE = transesophageal echocardiography.