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Related Concept Videos

Esophageal Varices-II: Clinical Features and Management01:28

Esophageal Varices-II: Clinical Features and Management

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Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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

Mitral Stenosis II: Clinical features and Diagnostic Tests

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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...
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Esophageal Varices-I: Introduction01:24

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Esophageal varices are dilated, tortuous veins which are found mainly in the submucosa of the lower esophagus but which may also appear higher up or extend into the stomach. They develop due to increased pressure in the portal venous system, often as a result of liver cirrhosis. This condition scars and damages the liver, impeding normal blood flow through the portal vein. To compensate, blood seeks alternative pathways, forming fragile new vessels (varices) in the esophagus and stomach. These...
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Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

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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...
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Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

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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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Updated: Jul 31, 2025

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
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Left-Sided Prosthetic Valve Dysfunction and Gastrointestinal Bleeding.

Kifah Hussain1, Ajoe J Kattoor2, Bolun Liu3

  • 1Department of Cardiology, University of Chicago (NorthShore University Health System), Chicago, USA.

Cureus
|May 5, 2023
PubMed
Summary
This summary is machine-generated.

Moderate to severe prosthetic valve regurgitation in left-sided heart valves is linked to gastrointestinal (GI) bleeding. This finding is crucial for understanding bleeding risks in patients with prosthetic valves.

Keywords:
gastrointestinal tract bleedingprosthetic heart valveprosthetic valve dysfunctionprosthetic valve regurgitationprosthetic valve stenosis

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Area of Science:

  • Cardiology
  • Gastroenterology
  • Medical Devices

Background:

  • Gastrointestinal (GI) bleeding is a significant complication in patients with prosthetic heart valves.
  • The association between left-sided prosthetic valve dysfunction and GI bleeding requires further investigation.

Purpose of the Study:

  • To investigate the association between left-sided prosthetic valve dysfunction and gastrointestinal (GI) bleeding.
  • To identify specific types of prosthetic valve dysfunction linked to GI bleeding events.

Main Methods:

  • Retrospective cohort study of 334 patients with left-sided prosthetic valves.
  • Analysis of echocardiograms by a blinded investigator to assess prosthetic valve dysfunction.
  • Comparison of prosthetic valve characteristics between patients with and without GI bleeding.

Main Results:

  • Moderate or severe prosthetic valve regurgitation was independently associated with GI bleeding (OR, 6.18; P=0.024).
  • Paravalvular regurgitation showed a higher incidence of GI bleeding compared to transvalvular regurgitation (35.7% vs. 11.9%; P=0.044).
  • No significant difference in prosthetic valve stenosis prevalence between groups (P=0.761).

Conclusions:

  • Moderate to severe left-sided prosthetic valve regurgitation is an independent risk factor for GI bleeding.
  • Paravalvular regurgitation may contribute more significantly to GI bleeding than transvalvular regurgitation.
  • Findings emphasize the importance of evaluating prosthetic valve function in patients experiencing GI bleeding.