Related Experiment Videos
Catastrophic outcomes of noncardiac surgery soon after coronary stenting
G L Kałuza1, J Joseph, J R Lee
1Methodist Hospital, Baylor College of Medicine, Houston, Texas 77030, USA.
Insights
Patients undergoing noncardiac surgery soon after coronary stent placement face high risks of myocardial infarction, bleeding, and death. Delaying surgery for at least two to four weeks after stenting significantly reduces these adverse events.
Area of Science:
- Cardiology
- Cardiovascular Surgery
- Anesthesiology
Background:
- Noncardiac surgery after coronary interventions aims to reduce perioperative cardiac events.
- Limited data exists on complications in patients with recent coronary stenting undergoing noncardiac surgery.
Observation:
- Forty patients underwent noncardiac surgery within six weeks of coronary stent placement (average 13 days).
- Adverse events included myocardial infarction, stent thrombosis, bleeding, and death.
Findings:
- Seven myocardial infarctions, 11 major bleeding episodes, and eight deaths occurred.
- All fatal events and most bleeding occurred in patients operated on within 14 days of stenting.
- Stent thrombosis was a primary cause of mortality, with surgery timing being critical.
Implications:
- Postponing elective noncardiac surgery for 2-4 weeks post-stenting is recommended.
- This delay allows completion of antiplatelet therapy, reducing stent thrombosis and bleeding risks.
Objectives:
To assess the clinical course of patients who have undergone coronary stent placement less than six weeks before noncardiac surgery.
Background:
Surgical and percutaneous transluminal coronary angioplasty revascularization performed before high-risk noncardiac surgery is expected to reduce perioperative cardiac morbidity and mortality. Perioperative and postoperative complications in patients who have undergone coronary stenting before a noncardiac surgery have not been studied.
Methods:
Forty patients who underwent coronary stent placement less than six weeks before noncardiac surgery requiring a general anesthesia were included in the study (1-39 days, average: 13 days). The records were screened for the occurrence of adverse clinical events, including myocardial infarction, stent thrombosis, peri- and postoperative bleeding and death.
Results:
In 40 consecutive patients meeting the study criteria, there were seven myocardial infarctions (MIs), 11 major bleeding episodes and eight deaths. All deaths and MIs, as well as 8/11 bleeding episodes, occurred in patients subjected to surgery fewer than 14 days from stenting. Four patients expired after undergoing surgery one day after stenting. Based on electrocardiogram, enzymatic and angiographic evidence, stent thrombosis accounted for most of the fatal events. The time between stenting and surgery appeared to be the main determinant of outcome.
Conclusions:
Postponing elective noncardiac surgery for two to four weeks after coronary stenting should permit completion of the mandatory antiplatelet regimen, thereby reducing the risk of stent thrombosis and bleeding complications.