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相关概念视频

Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

50
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...
50
Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

45
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...
45
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

48
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...
48
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

64
Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
64
Mitral Regurgitation II: Clinical Features and Diagnostic Tests01:23

Mitral Regurgitation II: Clinical Features and Diagnostic Tests

60
Mitral regurgitation (MR) is a valvular heart disorder in which the mitral valve fails to close tightly, allowing blood to leak backward into the heart. Understanding the clinical manifestations, assessment, diagnostic findings, and medical management of MR is crucial to effectively managing affected patients.Clinical Manifestations of Mitral RegurgitationMitral regurgitation can be acute or chronic, each presenting differently and requiring different approaches:1. Acute Mitral...
60
Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

34
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...
34

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相关实验视频

Updated: Sep 17, 2025

Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
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关关关关关障碍 关关关关关障碍

Rachel L Goldberg1, Eric Isselbacher1, Sean P Murphy2

  • 1Cardiovascular Disease Division, Corrigan Minehan Heart Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.

JACC. Case reports
|June 27, 2025
PubMed
概括
此摘要是机器生成的。

伴心环状干扰,通常是由感染或门更换引起的,难以诊断. 多模式心脏成像对于识别这些罕见但严重的心脏缺陷至关重要.

关键词:
心内膜炎是一种心内膜炎.额头门更换器 额头门更换器

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科学领域:

  • 心脏病学 心脏病学
  • 心脏成像 - - 心脏成像
  • 膜心脏疾病 膜心脏疾病

背景情况:

  • 中心环状断裂是一个新兴的临床问题.
  • 常见的原因包括传染性内心炎和 mitra 置换手术,特别是与 mitra 环状化.

研究的目的:

  • 介绍一系列关于友环状断裂的病例.
  • 突出诊断挑战和多模式成像的作用.

主要方法:

  • 一个由4名患者组成的病例系列,其中4名患者患有心肌环状断裂.
  • 利用多模式心脏成像在不同的临床场景中进行诊断.

主要成果:

  • 呈现了4例心肌环状断裂的情况.
  • 证明了诊断先进成像技术的必要性.

结论:

  • 中心环状断裂可能是感染性内心炎或中心替换中心环状结的结果.
  • 诊断往往是具有挑战性的,因为 transthoracic 成像和解释复杂性在 transesophageal 心声学中的局限性.
  • 强调高临床怀疑和综合多模式心脏成像的重要性.