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相关概念视频

Chambers of the Heart01:16

Chambers of the Heart

10.0K
The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...
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Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

1.8K
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...
1.8K
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

557
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...
557
Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

858
Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
858
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

1.2K
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
1.2K
Mitral Valve Prolapse I: Introduction01:27

Mitral 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...
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相关实验视频

Updated: May 1, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

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耳前隔膜缺陷 耳前隔膜缺陷

Tal Geva1, Jose D Martins2, Rachel M Wald3

  • 1Department of Cardiology, Boston Children's Hospital, and Department of Pediatrics, Harvard Medical School, Boston, MA, USA.

Lancet (London, England)
|April 15, 2014
PubMed
概括
此摘要是机器生成的。

前庭隔膜缺陷是一种常见的先天性心脏问题,在儿童中通常不会引起症状,但在成人中可能会导致严重的并发症. 早期关闭,手术或透导管,确保正常的预期寿命.

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Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter
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Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter

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Murine Fetal Echocardiography
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Murine Fetal Echocardiography

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相关实验视频

Last Updated: May 1, 2026

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07:41

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Published on: February 8, 2022

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Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter
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Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter

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Murine Fetal Echocardiography
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Murine Fetal Echocardiography

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科学领域:

  • 心脏病学 心脏病学
  • 遗传性心脏病是一种先天性心脏病.

背景情况:

  • 前庭隔膜缺陷 (ASD) 是第三个最常见的先天性心脏形.
  • 这些缺陷涉及心房之间的异常开口,导致系统和肺循环之间的血液分流.

研究的目的:

  • 为了回顾心房隔膜缺陷的原因,解剖学,病理生理学,治疗和结果.
  • 强调及时干预对于改善预期寿命的重要性.

主要方法:

  • 对心房隔膜缺陷的现有文献的综述.
  • 对手术和透导管闭合方法治疗结果的分析.

主要成果:

  • 大多数患有孤立自闭症的儿童无症状,但随着年龄的增长,运动不耐受,心律失常和肺高血压的风险会增加.
  • 未经治疗的缺陷,特别是在女性和老年人中,会增加潜在致命的肺血管疾病的风险.
  • 在25岁之前进行手术关闭与正常预期寿命有关;对于某些患者来说,透导管关闭是一种不那么侵入性的选择.

结论:

  • 早期诊断和治疗心房隔膜缺陷对于预防长期并发症和确保正常预期寿命至关重要.
  • 手术和透导管闭合方法都是有效的,透导管闭合提供了最少侵入性的替代方案.