[跨导管大动脉替换后结构的恶化:研究更新]
Mengyun Yan1, Zhengang Zhao2, Mao Chen3
1Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China. ymy18770086706@163.com.
概括
结构性膜恶化 (SVD) 涉及假体心脏膜的不可逆转变化,导致狭窄或反. 跨导管大动脉置换 (TAVR) 后SVD的管理策略包括重复TAVR和外科大动脉置换 (SAVR).
科学领域:
- 心血管医学 心血管医学
- 生物材料科学 生物材料科学
- 手术创新 在外科创新.
背景情况:
- 结构性膜恶化 (SVD) 包含假心膜的不可逆转的病理变化,包括纤维化,化和机械故障,导致膜功能障碍.
- SVD的危险因素是多因素的,涉及患者的特征,假体门的特性和手术技术.
- 精确的临床评估SVD依赖于补充成像模式,如心声学,CT和MRI.
研究的目的:
- 审查了解和管理跨导管大动脉替换 (TAVR) 后结构恶化 (SVD) 的最新进展.
- 为生物假体门的耐用性提供见解,并指导SVD的临床干预.
- 讨论TAVR后SVD的当前和新兴治疗策略.
主要方法:
- 综述当前关于跨导管大动脉置换 (TAVR) 后结构恶化的文献.
- 风险因素,机制的分析和SVD的临床评估.
- 管理策略的评估,包括重复TAVR,手术性大动脉置换 (SAVR) 和SURPLUS技术.
主要成果:
- SVD的特点是内在的病理变化导致门狭窄或吐.
- 多种因素导致SVD,包括患者,门和手术元素.
- 重复TAVR是一种常见的,SVD的最小侵入性方法,尽管指示需要进一步澄清. 根据患者的风险和适应性,SAVR和SURPLUS提供了替代策略.
结论:
- 结构性门恶化 (SVD) 仍然是TAVR后生物假体心脏门长期耐用性的关键问题.
- 优化患者选择和手术技巧进行重复TAVR,SAVR和SURPLUS对于有效的SVD管理至关重要.
- 对SVD机制和新干预措施的持续研究对于改善患者的治疗结果至关重要.
更多相关视频
09:57Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement
Published on: January 20, 2022
2.5K
05:31Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model
Published on: June 8, 2022
2.7K
相关概念视频
01:27Mitral Valve Prolapse I: Introduction
1.1K
IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
1.1K
01:22Mitral Valve Prolapse II: Assessment and Management
1.4K
IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
1.4K
01:26Mitral Stenosis III: Medical Management
535
Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
535
01:15Aortic Regurgitation I: Introduction
1.6K
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
1.6K
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
1.2K
Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
1.2K
01:25Aortic Regurgitation III: Medical Management
598
Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
598