共查询到20条相似文献,搜索用时 31 毫秒
1.
2.
3.
Christopher J. Petit MD Henri Justino MD Frank F. Ing MD 《Catheterization and cardiovascular interventions》2013,82(7):E944-E946
Percutaneous implantation of valved stents is now routinely performed to treat pulmonary valve regurgitation and stenosis. In addition, there are isolated reports of implantation of valved stents in the tricuspid position to treat prosthetic tricuspid stenosis or regurgitation when a prosthetic valve ring exists. We present a case in which a patient with combined severe tricuspid valve and pulmonary valve disease was successfully treated with sequential implantation of percutaneous valved stents in a single procedure. The procedure was straightforward, of short duration, and dramatically improved the patient's functional status. © 2012 Wiley Periodicals, Inc. 相似文献
4.
5.
6.
7.
8.
9.
10.
11.
12.
A study was conducted into the development of a mitral and aortic heart valve replacement that caters for patients having suffered valve damage due to stenosis or rheumatic fever. The appeal of the valve is that it is constituted from a solid frame housing pericardial tissue leaflets, and allows the patient freedom from post-operative blood-thinning medication. The valve is designed to appeal to patients in developing areas of the world, as it features a clip-in mechanism to secure the valve assembly into the sewing ring, which is stitched in independently of the frame and leaflets. Re-operative valve replacement would then be made possible when the pericardial leaflets began to calcify. Novel aspects of the design added value to the science of heart valve replacements, through the use of sintered chrome cobalt in the valve components, the insights gained into mechanical testing of pericardium, and the patient benefits offered by the complete design. Further work is planned to fatigue test the assembly, undergo animal trials and make the valve available for commercial use. 相似文献
13.
Unicuspid aortic valve is a rare congenital cardiac abnormality, leading to aortic stenosis or regurgitation. We report the
case of a 55-year-old man with severe aortic regurgitation caused by a unicuspid valve mimicking quadricuspid valve. 相似文献
14.
15.
Objective To analyze the mortality in people aged 70 years and over who had undergone aortic valve replacement (AVR) for aortic stenosis.Methods The clinical data of 246consecutive cases aged 70 years and over,who had received AVR,were retrospectively analyzed.The 144 cases (58.5 % ) had hypertension,42 cases ( 17.1 %) had atrial fibrillation,27 cases ( 11.0 % )were obeses,and 18 cases (7.3%) had undergone previous heart surgery.Results The 29 cases (11.8%) were dead within 30 days after operation.Among them,15 cases (8.8%) were with isolated AVR and the other 14 cases (18.7%) were with an associate procedure,the difference was significant (P < 0.05).The rate of postoperative complication was 24 .4%.The commoncomplications were:48 cases (19.5%) with low cardiac output,24 cases (9.8%) with renal dysfunction,52 cases (21.1% ) with prolonged ventilatory support and 12 cases (4.9%) with sepsis.In the Poisson regression analysis,the main predictors of mortality were low cardiac output,renal failure,sepsis and associate procedure.The main predictors of morbidity were CBP time > 120 min,atrial fibrillation and chronic obstructive pulmonary disease.Conclusions The balance between the benefits and risks of the surgery should be well evaluated before deciding to perform AVR. 相似文献
16.
Objective To analyze the mortality in people aged 70 years and over who had undergone aortic valve replacement (AVR) for aortic stenosis.Methods The clinical data of 246consecutive cases aged 70 years and over,who had received AVR,were retrospectively analyzed.The 144 cases (58.5 % ) had hypertension,42 cases ( 17.1 %) had atrial fibrillation,27 cases ( 11.0 % )were obeses,and 18 cases (7.3%) had undergone previous heart surgery.Results The 29 cases (11.8%) were dead within 30 days after operation.Among them,15 cases (8.8%) were with isolated AVR and the other 14 cases (18.7%) were with an associate procedure,the difference was significant (P < 0.05).The rate of postoperative complication was 24 .4%.The commoncomplications were:48 cases (19.5%) with low cardiac output,24 cases (9.8%) with renal dysfunction,52 cases (21.1% ) with prolonged ventilatory support and 12 cases (4.9%) with sepsis.In the Poisson regression analysis,the main predictors of mortality were low cardiac output,renal failure,sepsis and associate procedure.The main predictors of morbidity were CBP time > 120 min,atrial fibrillation and chronic obstructive pulmonary disease.Conclusions The balance between the benefits and risks of the surgery should be well evaluated before deciding to perform AVR. 相似文献
17.
经导管主动脉瓣置换术(TAVR)经过最近几年快速发展已经取得巨大进步。迄今为止全球接受TAVR的患者数已近3万例,已成为无法耐受传统手术患者的标准备选治疗措施。从目前已临床应用的介入瓣膜到正在实验研究的新型介入瓣膜可以看出,未来介入瓣膜的发展目标是尺寸更小、长期有效、安全性高、并发症少、操作简单及定位精准。随着TAVR的推广,新型介入瓣的研发,操作者经验的积累,以及长期随访的开展,将给TAVR提供更科学的病例选择标准,减少介入手术的相关并发症,提高更安全有效的治疗效果。未来此项技术还会逐渐扩大适用人群的范围,成为代替传统的主动脉瓣置换术举足轻重的治疗措施。 相似文献
18.
19.
Marian Urban Jan Pirk Ondrej Szarszoi Ivo Skalsky Jiri Maly Ivan Netuka 《Experimental & Clinical Cardiology》2013,18(1):22-26