Table 2.

Perioperative complications.

Major complication	n (%)	deaths	30-day KM mortality rate
Worsening renal insufficiency (incr. >2 mg/dL and 2x baseline creatinine)	123 (8.4%)	37	30%
Cardiac arrest requiring CPR	69 (4.7%)	35	51%
New onset ventricular arrhythmia	103 (7.1%)	31	30%
Pulmonary edema req. intubation	45 (3.1%)	18	40%
Other major complication	21 (1.4%)	9	43%
Return to OR for other reason	53 (3.6%)	9	17%
Return to OR for bleeding	56 (3.8%)	7	12%
Acute MI	12 (0.8%)	5	42%
Stroke	24 (1.6%)	4	17%
Respiratory compromise	31 (2.1%)	4	13%
GI complication	14 (1.0%)	2	14%
Mediastinitis	25 (1.7%)	2	8%
Complications not considered major
New onset atrial flutter/fibrillation	329 (22.5%)	26	8%
Other infection	132 (9.0%)	13	10%
Delirium	65 (4.5%)	7	11%