Related Experiment Video

Updated: Aug 19, 2026

A Chronic Cardiac Ischemia Model in Swine Using an Ameroid Constrictor
08:22

A Chronic Cardiac Ischemia Model in Swine Using an Ameroid Constrictor

Published on: October 9, 2017

Coronary artery narrowing due to extrinsic compression by myocardial abscess

C L Wickline1, V D Goli, J C Buell

  • 1Texas Tech University Health Sciences Center, Internal Medicine Department, Lubbock 79430.

Catheterization and Cardiovascular Diagnosis
|June 1, 1991
PubMed

Insights

A rare aortic valve endocarditis case complicated by a perivalvular abscess was diagnosed. Coronary angiography identified the abscess by compressing coronary arteries, a crucial finding for diagnosis.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Cardiac Surgery

Background:

  • Aortic valve endocarditis can lead to serious complications.
  • Perivalvular abscesses are rare but critical extensions of endocarditis.
  • Myocardial involvement signifies advanced disease progression.

Observation:

  • A case presented with aortic valve endocarditis and a myocardial perivalvular abscess.
  • Standard imaging like echocardiography and aortography did not detect the abscess.
  • Coronary angiography revealed the abscess through extrinsic compression of coronary arteries.

Findings:

  • The abscess caused significant extrinsic compression of the left anterior descending and diagonal arteries.
  • Morphological details of this rare coronary narrowing cause were elucidated.
  • Coronary angiography proved vital in diagnosing the perivalvular abscess.

Implications:

  • Highlights the diagnostic limitations of conventional imaging for perivalvular abscesses.
  • Emphasizes the importance of coronary angiography in complex endocarditis cases.
  • Provides insights into the rare mechanism of coronary artery compression by myocardial abscesses.

More Related Videos

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

Surgical Porcine Model of Chronic Myocardial Ischemia Treated by Exosome-laden Collagen Patch and Off-pump Coronary Artery Bypass Graft05:25

Surgical Porcine Model of Chronic Myocardial Ischemia Treated by Exosome-laden Collagen Patch and Off-pump Coronary Artery Bypass Graft

Published on: September 15, 2023

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...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
Angina I: Introduction01:30

Angina I: Introduction

Definition and Symptoms: Angina (angina pectoris) is chest pain or discomfort caused by myocardial ischemia, which occurs when the heart muscle receives insufficient oxygen-rich blood. It typically manifests as pressing, squeezing, or crushing sensations in the chest and may radiate to the shoulders, arms, neck, jaw, or back.Primary Cause: In a healthy state, the coronary arteries can dilate (widen) to increase blood flow and meet the increased oxygen demand during physical activity or...