转导管心脏门的变形与中枢-在-门
Miho Fukui1, Atsushi Okada2, Marcus R Burns3
1Cardiovascular Imaging Research Center and Core Lab, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA.
概括
在中枢内 (MViV) 程序中过度超大通常会导致跨导管心脏 (THV) 变形,导致沙表形状. 优化THV扩张可以防止低衰减叶片加厚 (HALT).
科学领域:
- 心血管医学 心血管医学
- 干预心脏病学 干预心脏病学
- 生物医学工程 生物医学工程
背景情况:
- 中心内 (MViV) 程序涉及跨导管心脏 (THV).
- 在MViV中超大尺寸的THV可以导致不均的膨胀和冲击的耐用性.
- 了解THV变形对于改善MViV结果至关重要.
研究的目的:
- 在MViV程序后评估THV变形的程度.
- 为了确定MViV患者THV变形的预测因素.
- 为了评估THV变形和低衰减叶片加厚 (HALT) 之间的关系.
主要方法:
- 心脏计算机断层扫描 (CT) 用于评估33名MViV患者的THV变形.
- 关键指标包括变形指数,离心率和neosinus体积.
- 在手术后30天,评估了低衰减的叶片加厚 (HALT).
主要成果:
- 不均的THV不扩张和沙时钟形状 (变形指数>1.00) 是MViV后常见的.
- 过度超大尺寸显著与较大的不扩张和变形有关.
- HALT发生在27.3%的患者中,特别是具有高变形指数和低PT-INR的患者.
结论:
- THV变形,特点是不充分膨胀和沙钟形状,是MViV的常见并发症.
- 过度超大尺寸是MViV中THV变形的主要驱动因素.
- 在MViV植入期间优化THV扩张可能会减少HALT的发生率.
相关概念视频
Mitral Stenosis III: Medical Management
12
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...
12
Mitral Valve Prolapse I: Introduction
21
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...
21
Mitral Stenosis I: Introduction
15
Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
15
Mitral Stenosis II: Clinical features and Diagnostic Tests
22
Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
22
Mitral Regurgitation III: Medical Management
18
Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
18
Mitral Valve Prolapse II: Assessment and Management
19
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...
19


