Risk factors analysis of hyperbilirubinemia after off-pump coronary artery bypass grafting: a retrospective

Yingdi Gao1, Dongjie Li1, Honghong Dong2

  • 1Department of Cardiac Surgery, Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, No. 8 Gong Ti South Road, Chaoyang District, Beijing, 100020, China.

Insights

Postoperative hyperbilirubinemia occurred in 7.7% of patients after off-pump coronary artery bypass grafting (OPCAB). Elevated preoperative bilirubin, blood transfusion, and intra-aortic balloon pump (IABP) implantation were identified as independent risk factors.

Area of Science:

  • Cardiology
  • Surgical Complications
  • Hepatic Function

Background:

  • Hyperbilirubinemia is a frequent complication following off-pump coronary artery bypass grafting (OPCAB).
  • The precise incidence and contributing risk factors for this complication remain incompletely understood.
  • This study investigates the occurrence and determinants of postoperative hyperbilirubinemia in OPCAB patients.

Purpose of the Study:

  • To determine the incidence of postoperative hyperbilirubinemia in patients undergoing OPCAB.
  • To identify independent risk factors associated with the development of hyperbilirubinemia post-OPCAB.
  • To provide data for potential preventative strategies and improved patient management.

Main Methods:

  • A retrospective analysis of 416 consecutive patients undergoing OPCAB from December 2016 to March 2019.
  • Patients were categorized into normal serum total bilirubin and hyperbilirubinemia groups.
  • Univariate and multivariate logistic regression analyses were employed to identify risk factors.

Main Results:

  • The incidence of postoperative hyperbilirubinemia was 7.7% (32 out of 416 patients).
  • Significant differences between groups included gender, preoperative total bilirubin levels, and perioperative use of intra-aortic balloon pump (IABP) and blood transfusion.
  • Multivariate analysis identified elevated preoperative serum total bilirubin, perioperative blood transfusion, and perioperative IABP implantation as independent risk factors (P < 0.001).

Conclusions:

  • Postoperative hyperbilirubinemia is a notable complication after OPCAB.
  • Elevated preoperative bilirubin, perioperative blood transfusion, and IABP implantation are key independent risk factors.
  • Further research is warranted to validate these findings and explore clinical implications.
Abstract