Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/15/2025

Timing of Noncardiac Surgery After Percutaneous Coronary Intervention (PCI)

  • The American College of Cardiology recommends delaying elective noncardiac surgery for at least 6 months after drug-eluting stent (DES) PCI for chronic coronary disease and 12 months after DES-PCI for acute coronary syndrome to minimize perioperative major adverse cardiac events 1, 2
  • Delay elective noncardiac surgery for a minimum of 14 days after balloon angioplasty to reduce the risk of major adverse cardiac events 1, 2
  • For bare-metal stent (BMS) implantation, delay elective noncardiac surgery for at least 30 days to minimize the risk of stent thrombosis and ischemic complications 1, 2, 4
  • For drug-eluting stent (DES) placed for chronic coronary disease, delay elective surgery for at least 6 months, and for DES placed for acute coronary syndrome, delay elective surgery for at least 12 months 1, 2, 4

Perioperative Antiplatelet Management

  • Continue aspirin (75-100 mg) during the perioperative period if possible to reduce cardiac events, as recommended by the American Heart Association 2, 4
  • For time-sensitive surgery within 30 days of BMS or within 3 months of DES, dual antiplatelet therapy (DAPT) should be continued unless bleeding risk outweighs stent thrombosis risk 2

Risk Considerations and Decision-Making

  • The risk of perioperative stent thrombosis is highest in the first 4-6 weeks post-PCI, with declining but persistent risk up to 6 months, according to the American College of Cardiology 2
  • Prior PCI remains a risk factor for perioperative major adverse cardiac events and bleeding for up to 1 year, as reported by the American Heart Association 1
  • For patients who underwent PCI for myocardial infarction, perioperative risks are nearly 3 times higher compared to those with stable CAD as the indication for PCI, according to the American College of Cardiology 2

Algorithm for Decision-Making

  • Identify PCI type and timing: