Posterior pericardiotomy: An effective strategy for reducing post-coronary artery bypass grafting complications, with

Muneeb Khawar1, Syed Abdullah Shah1, Ayesha Khan2

  • 1Department of Medicine, King Edward Medical University, Lahore 54000, Punjab, Pakistan.

PubMed

Insights

Posterior pericardiotomy (PP) significantly reduces postoperative atrial fibrillation, effusions, and tamponade after coronary artery bypass grafting (CABG). While it shortens hospital stays, PP also increases the risk of pleural effusion.

Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Critical Care Medicine

Background:

  • Coronary artery bypass grafting (CABG) is frequently complicated by postoperative atrial fibrillation (POAF) and pericardial effusion.
  • Posterior pericardiotomy (PP) is a surgical technique that involves incising the posterior pericardium to facilitate drainage.
  • The efficacy and safety of PP in preventing post-CABG complications require thorough evaluation.

Purpose of the Study:

  • To systematically review and meta-analyze randomized controlled trials (RCTs) evaluating the efficacy of posterior pericardiotomy (PP) in reducing postoperative complications following coronary artery bypass grafting (CABG).

Main Methods:

  • A systematic review and meta-analysis of 20 RCTs involving 5331 adult CABG patients comparing intraoperative PP versus no PP.
  • Data were extracted from PubMed, Cochrane, ClinicalTrials.gov, and Ovid.
  • Primary outcome was POAF; secondary outcomes included effusions, tamponade, length of stay, and bleeding revisions. Random-effects models were used for analysis.

Main Results:

  • PP significantly reduced the incidence of POAF (RR=0.48), cardiac tamponade (RR=0.16), and both early (RR=0.31) and late (RR=0.11) pericardial effusions.
  • Hospital stay was reduced by an average of 1.23 days (MD=-1.23).
  • However, PP increased the risk of pleural effusion (RR=1.46) with no significant impact on mortality, ICU stay, or bleeding revisions.

Conclusions:

  • Posterior pericardiotomy is an effective strategy for reducing POAF, pericardial effusions, and cardiac tamponade after CABG, leading to shorter hospitalizations.
  • The increased risk of pleural effusion associated with PP warrants consideration.
  • Heterogeneity was observed in certain outcomes, highlighting the need for careful interpretation.
Abstract