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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

47
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

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Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
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Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

38
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
38
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

39
Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

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Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
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Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

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Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
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Updated: Sep 10, 2025

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
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心房細動および高縮性心筋病における血栓塞栓リスク

You-Jung Choi1,2, Neal K Lakdawala3

  • 1Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea. flyiing48@gmail.com.

Journal of cardiovascular imaging
|August 26, 2025
PubMed
まとめ

心筋縮症 (HCM) の心房細動 (AF) は脳卒中のリスクを高めます. 先進的なイメージングと個別化された治療は,これらの患者の血栓塞栓症の管理に不可欠です.

キーワード:
アリスミア心臓病について心筋病発血性脳卒中

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科学分野:

  • 心臓病科
  • 医療用イメージング
  • 遺伝学

背景:

  • 心房細動 (AF) は,多動性心筋病 (HCM) の一般的な不律である.
  • HCMとAFの患者は血栓塞栓症のリスクが著しく高い.
  • 伝統的なリスクスコアは,疾患特有の要因により,HCMにおける脳卒中リスクを不十分に予測します.

研究 の 目的:

  • HCMにおけるAFと血栓塞栓症の疫学,病理生理学,および臨床的影響をレビューする.
  • 心房の改造と血栓塞栓のリスクを評価するための高度なイメージング技術を探求する.
  • 抗凝固剤と脳卒中予防のための現在のおよび新興の管理戦略について議論する.

主な方法:

  • 文献のレビュー 現在の証拠を統合する
  • 先進的なイメージング方法の議論:ストレスエコー,心臓MRI,心臓CT.
  • 抗凝固剤の戦略,直接の経口抗凝固剤,および補助的な治療法の分析

主要な成果:

  • HCMにおける血栓塞栓リスクは,独特の構造的,機能的,および前血栓性基板によって影響を受けます.
  • 先進的なイメージングは,心房の変化とリスクの特性を強化します.
  • 現在のガイドラインと 進化する治療法は 脳卒中予防の選択肢を提供します

結論:

  • 先進的なイメージングと分子プロファイリングを統合した多分野アプローチは不可欠です.
  • 個別化された管理戦略は,HCMのAF患者での結果を最適化するための鍵です.
  • この高リスク集団における脳卒中の負担を減らすには 総合的なケアが必要です