What are the effects of percutaneous coronary intervention versus medical therapy on angina relief?
A meta-analysis of randomized controlled trials found that percutaneous coronary intervention (PCI) had a significantly greater effect on angina relief compared to medical therapy. Results showed that PCI was associated with a significantly greater reduction in angina symptoms compared to medical therapy alone. The meta-analysis also found that PCI had a greater effect in reducing angina symptoms compared to coronary artery bypass graft surgery (CABG). Additionally, the meta-analysis showed that PCI was associated with fewer adverse events than CABG. These results suggest that PCI is an effective treatment for angina relief and has fewer adverse events than CABG.  