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Related Concept Videos

Mitral Regurgitation II: Clinical Features and Diagnostic Tests01:23

Mitral Regurgitation II: Clinical Features and Diagnostic Tests

247
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...
247
Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

206
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...
206
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

300
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...
300
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

308
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...
308
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

365
The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
365
Mitral Regurgitation IV: Nursing Management01:28

Mitral Regurgitation IV: Nursing Management

256
Mitral regurgitation (MR) is a condition where the mitral valve does not close properly, leading to the backward flow of blood from the left ventricle into the left atrium during systole. This condition can arise from various causes, including rheumatic fever, infective endocarditis, or degenerative valve disease. Effective nursing management is crucial to optimizing patient outcomes and involves comprehensive assessment and targeted interventions.Comprehensive Patient AssessmentA detailed...
256

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A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
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Artificial intelligence for detecting mitral regurgitation using electrocardiography.

Joon-Myoung Kwon1, Kyung-Hee Kim2, Zeynettin Akkus3

  • 1Department of Emergency Medicine, Mediplex Sejong Hospital, Incheon, Republic of Korea; Artificial Intelligence and Big Data Center, Sejong Medical Research Center, Bucheon, Republic of Korea.

Journal of Electrocardiology
|March 9, 2020
PubMed
Summary
This summary is machine-generated.

An artificial intelligence (AI) algorithm effectively detects mitral regurgitation (MR) using electrocardiography (ECG). This AI tool shows promise for early MR diagnosis and risk stratification, aiding in preventing disease progression.

Keywords:
Artificial intelligenceDeep learningEchocardiographyElectrocardiographyMitral valve insufficiency

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Area of Science:

  • Cardiology
  • Artificial Intelligence
  • Medical Diagnostics

Background:

  • Early detection of mitral regurgitation (MR) is vital to prevent irreversible progression.
  • Artificial intelligence (AI) offers a novel approach for MR screening and diagnosis.

Purpose of the Study:

  • To develop and validate an AI algorithm for detecting MR using electrocardiography (ECG).
  • To assess the AI algorithm's performance in identifying significant MR using both 12-lead and single-lead ECGs.

Main Methods:

  • A retrospective cohort study utilized 56,670 ECGs from 24,202 patients for AI training.
  • Internal and external validation were performed on 3,174 and 10,865 ECGs, respectively.
  • The AI algorithm analyzed 500 Hz ECG raw data, with sensitivity maps highlighting key ECG regions.

Main Results:

  • The AI algorithm achieved an area under the receiver operating characteristic curve of 0.816 (12-lead) and 0.758 (single-lead) for internal validation.
  • External validation showed AUCs of 0.877 (12-lead) and 0.850 (single-lead).
  • High-risk patients identified by AI had a significantly higher incidence of developing MR (13.9% vs. 2.6%).

Conclusions:

  • The AI algorithm shows significant promise for detecting mitral regurgitation using both 12-lead and single-lead ECGs.
  • The AI's ability to identify high-risk individuals suggests its utility in proactive patient management.