Initial experience of transcatheter aortic valve implantation
10.3760/cma.j.issn.0253-3758.2011.11.004
- VernacularTitle:经导管主动脉瓣置入术的初步经验
- Author:
Jun-Bo GE
1
;
Da-Xin ZHOU
;
Wen-Zhi PAN
;
Li-Hua GUAN
;
Kang YAO
Author Information
1. 复旦大学附属中山医院
- Keywords:
Aortic valve stenosis;
Heart catheterization;
Treatment outcome
- From:
Chinese Journal of Cardiology
2011;39(11):989-992
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the safety and efficacy and summarize the initial experience of transcatheter aortic valve implantation (TAVI) for treating patients with severe aortic stenosis.Methods From October 2010 to May 2011,TAVI using 18 F Corevalve system was applied in 3 patients with severe calcified aortic valve stenosis at high risk for surgery.The efficacy and complications of the procedure were analyzed and the procedure experiences were summarized.Results TAVI procedure was successful in all 3cases.The mean operation time was ( 109.0 ± 22.6) minutes and X-ray exposure time was (24.0 ± 9.5 )minutes.The peak pressure gradients after surgery were significantly reduced [ from ( 84 ± 15 ) mm Hg (1 mm Hg=0.133 kPa) to (6 ± 3) mm Hg].A trivial to mild paravalvular leak was observed in all patients post procedure.Case 1 was free from perioperative complications.Case 2 experienced a transient complete left bundle branch block.Case 3 developed 3 degree atrioventricular block and implanted with a permanent cardiac pacemaker,cardiac tamponade which was relieved through conservative treatment,including pericardial puncture and drainage and acute kidney injury.Conclusions Our initial experience showed that TAVI using the 18 F Corevalve system is safe and effective for patients with severe calcified aortic valve stenosis at high-risk for surgery,though the procedure may cause some complications.Strict patient selection and proficient surgical techniques may reduce the incidence of complications.
