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Related Concept Videos

Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

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...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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...
Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...

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Updated: Jun 29, 2026

Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement
08:50

Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement

Published on: March 26, 2018

Coronary ostial stenosis.

C L Pritchard, J G Mudd, H B Barner

    Circulation
    |July 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Symptomatic acquired coronary ostial stenosis is a rare finding in coronary angiograms. Early recognition is crucial for safe procedures and managing this serious condition.

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    Precision Ultrasound-guided Stem Cell Delivery for Vascular Repair in Aortic Diseases

    Published on: June 20, 2025

    Area of Science:

    • Cardiology
    • Interventional Cardiology
    • Vascular Medicine

    Background:

    • Acquired coronary ostial stenosis is a rare angiographic finding.
    • It was identified in 0.13% of 3000 coronary angiograms.
    • Symptomatic cases are uncommon, with only three surgically treated females reported.

    Purpose of the Study:

    • To highlight the significance of symptomatic, nonsyphilitic, acquired coronary ostial stenosis.
    • To emphasize the importance of recognizing this entity during coronary angiography.
    • To discuss the implications of left coronary ostial involvement.

    Main Methods:

    • Review of coronary angiogram findings.
    • Analysis of surgical case treatments.
    • Correlation of angiographic findings with clinical presentation and prognosis.

    Main Results:

    • Acquired coronary ostial stenosis was found in 0.13% of 3000 coronary angiograms.
    • Three female patients with this lesion underwent surgical treatment.
    • Two of these patients had left coronary ostial involvement.

    Conclusions:

    • Recognition of acquired coronary ostial stenosis is essential for the safety of coronary angiography.
    • Left coronary ostial involvement carries a serious prognosis, similar to left main coronary disease.
    • Prompt diagnosis and management are critical for patients with this rare condition.