Surgical therapy for Prinzmetal's variant angina

Area of Science:

• Cardiology
• Cardiac Surgery
• Vascular Medicine

Background:

• Variant angina, characterized by rest pain and S-T elevation, often coexists with fixed coronary artery disease.
• Previous treatments for variant angina were limited, especially in severe cases.

Purpose of the Study:

• To evaluate the efficacy of myocardial revascularization in patients with variant angina and fixed coronary artery disease.
• To assess the role of intraaortic balloon pumping in unstable variant angina cases.

Main Methods:

• Retrospective analysis of 52 patients undergoing coronary artery bypass grafting (CABG) between 1973 and 1979.
• Inclusion criteria: variant angina with >70% fixed coronary artery stenosis.
• Preoperative intraaortic balloon pumping used for medically refractory unstable patients.

Main Results:

• Myocardial revascularization proved effective for variant angina across stable, unstable, and postinfarction presentations.
• Intraaortic balloon pumping served as a beneficial adjunct for unstable patients.
• Outcomes in patients with Prinzmetal's variant angina and fixed disease mirrored those with classic angina pectoris.

Conclusions:

• CABG is an effective treatment for variant angina when associated with significant fixed coronary artery stenosis.
• Surgical revascularization offers comparable results to classic angina pectoris in similar clinical scenarios.
• Intraaortic balloon pumping is a valuable tool for managing unstable variant angina refractory to medical management.