A prospective, multi-center, single-group target value method was used in this study. According to the inclusion criteria stipulated in this trial protocol, \> 3 medical device clinical trial institutions with the record of the State Food and Drug Administration were selected as clinical centers, and 190 cases were selected (the first case of each center was taken as the imported case. Follow-up was carried out according to the program process, but the results were analyzed separately. Moderate-to-severe calcified stenosis patients who met all the inclusion criteria and did not meet any exclusion criteria were enrolled into the study. Lumen pretreatment was performed using the coronary shock catheter system and drug-eluting stents were implanted. Subjects were followed up immediately after surgery, before discharge, 30±3 days after surgery, and 6 months ±14 days after surgery to evaluate the safety and effectiveness of coronary lithotripsy catheter system for preconditioning patients with moderate and severe coronary artery calcification stenosis. In this study, the success rate of postoperative surgery was used as the primary endpoint, and major cardiovascular and cerebrovascular adverse events within 30 days after surgery were used as the secondary endpoint. After the completion of the primary endpoint evaluation of the project, it shall be submitted together with other data to the competent department of medical device approval for initial registration. At the same time, continue to complete the follow-up of the subjects.
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Success rate of operation
Timeframe: Immediately after the procedure