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首例使用 J-Valve 系统经心尖途径行经导管主动脉瓣中瓣植入术,为一位存在冠状动脉阻塞高危风险的患者,在其失败的生物型主动脉瓣假体中植入。

The first transapical transcatheter aortic valve-in-valve implantation using the J-valve system into a failed biophysio aortic prosthesis in a patient with high risk of coronary obstruction.

机构信息

Cardiac Surgery, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada.

Radiology, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada.

出版信息

Catheter Cardiovasc Interv. 2018 Nov 15;92(6):1209-1214. doi: 10.1002/ccd.27604. Epub 2018 Mar 30.

Abstract

We report the first successful valve-in-valve (ViV) implantation into a failed Edwards Biophysio surgical prosthesis (Edwards Lifesciences, Irvine, CA) and also the first use of the J-Valve system (Jie Cheng Medical Technologies, Suzhou, China) in a ViV configuration. A 77-year old male had symptomatic severe aortic stenosis secondary to failure of a 25 mm Biophysio bioprosthetic valve implanted 11 years previously, along with concomitant coronary artery bypass grafting. Transthoracic echocardiography (TTE) revealed calcified leaflets, a mean aortic gradient of 50 mm Hg, and an estimated valve area of 0.9 cm with no aortic insufficiency. The patient had low coronary ostial height with the right coronary artery arising only 8.5 mm from the valve annulus and the left main coronary artery arising only 9.4 mm from the valve annulus. Risk of coronary ostial obstruction was especially concerning in context of both the patient's extremely low coronary ostial height and the unique structure of the Biophysio valve. Under general anesthesia, transapical transcatheter aortic ViV implantation with a 25 mm J-Valve was performed in a hybrid operating room. The J-Valve prosthesis was deployed in the 25 mm Biophysio surgical valve without difficulty or complications. There were no intraoperative or postoperative complications. The patient was discharged home after 3 days. TTE at 1 year showed a mean aortic valve gradient of 14 mm Hg, and no aortic insufficiency. This case demonstrated that J-Valve implantation may be a new option for patients at high risk for coronary obstruction.

摘要

我们报告了首例成功的经导管主动脉瓣置换术中瓣中瓣(ViV)植入术,即使用 J 阀系统(苏州杰成医疗科技有限公司)在 ViV 配置中进行的首例手术。一名 77 岁男性因 11 年前植入的 25 毫米生物瓣外科假体(爱德华生命科学公司,欧文,加利福尼亚州)失效导致症状性重度主动脉瓣狭窄,同时合并冠状动脉旁路移植术。经胸超声心动图(TTE)显示瓣叶钙化,平均主动脉瓣梯度为 50mmHg,估计瓣口面积为 0.9cm²,无主动脉瓣关闭不全。患者的冠状动脉开口高度较低,右冠状动脉仅距瓣环 8.5 毫米,左主干冠状动脉仅距瓣环 9.4 毫米。考虑到患者极低的冠状动脉开口高度和生物瓣的独特结构,冠状动脉开口阻塞的风险尤其令人担忧。在全身麻醉下,在杂交手术室中经心尖经导管主动脉瓣 ViV 植入术,使用 25 毫米 J 阀。J 阀假体在 25 毫米生物瓣外科瓣膜中无困难或并发症地展开。术中及术后均无并发症。患者术后 3 天出院回家。术后 1 年的 TTE 显示平均主动脉瓣梯度为 14mmHg,无主动脉瓣关闭不全。该病例表明,J 阀植入术可能是一种高危冠状动脉阻塞患者的新选择。

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