Effects of Qishen Yiqi Dripping Pills (芪参益气滴丸) in Reducing Myocardial Injury and Preserving Microvascular Function in Patients Undergoing Elective Percutaneous Coronary Intervention: A Pilot Randomized Study

Objectives To evaluate the effect of treatment with Qishen Yiqi Dripping Pills (芪参益气滴丸, QSYQ) on myocardial injury and myocardial microvascular function in patients undergoing elective percutaneous coronary intervention (PCI).