Effect of Enhanced External Counterpulsation

patients in the control group received antiplatelet agents (100 mg of aspirin and 75 mg of clopidogrel, once a day), β-blocker (25-100 mg of metoprolol, twice a day, with the dose adjusted based on the patient's heart rate) and statins (10-20 mg of rosuvastatin, every night). In addition, the patients received exercise rehabilitation (e.g. aerobic, resistance and flexibility training) for 30-60 min, 3-5 times/week.

Patients in the rehabilitation group received the same medication and exercise rehabilitation as the control group during the trial period after undergoing DCB-based PCI DCBs; in addition, they were provided with EECP treatment after 7 days of medication. The treatment adopted a P-ECP/TI EECP device with a pressure setting of 0.020-0.035 MPa. Based on patients' actual tolerance, the treatment pressure and inflation and exhaust times were adjusted to a diastolic/systolic blood pressure ratio of \>1.2 and a diastolic/systolic pressure area of 1.5-2.0. The treatment was applied daily for 1 hour, 6 days a week, for a total of 36 hours.