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Table 4 Postoperative adverse events

From: Lessons learned from the use of 1,977 in-situ bilateral internal mammary arteries: a retrospective study

Outcome (% unless otherwise indicated) BIMA Single IMA  
n = 1,977 n = 14,387 pvalue
Mortality 1.0 1.8 0.009
De-novo atrial fibrillation 15.6 23.3 <0.0001
Re-exploration for bleeding 3.7 3.7 0.96
De-novo renal failure* 3.9 7.0 <0.0001
Stroke 0.8 1.7 0.003
Deep sternal wound infection 2.4 1.2 <0.0001
Mechanical ventilation > 48 hours 1.8 2.8 0.01
Blood product transfusion 42.2 48.5 <0.0001
Mean hospital length of stay (days) 5 6 0.01
  1. *Defined as a 50-μmol/L absolute rise in baseline serum creatinine or a new need for dialysis.
  2. BIMA bilateral internal mammary arteries.