Related Experiment Video
Updated: May 11, 2026

12:03
Myocardial Infarction and Functional Outcome Assessment in Pigs
Published on: April 25, 2014
Post-infarction communication between a left ventricular aneurysm and the right atrium.
1Regional Cardiothoracic Centre, Freeman Hospital, Newcastle upon Tyne, U.K.
European Heart Journal
|July 1, 1992
Summary
A rare case of silent myocardial infarction led to a left ventricular-right atrial communication, causing heart failure. Surgical repair was successful, highlighting diagnostic imaging
Area of Science:
- Cardiology
- Cardiac Surgery
- Medical Imaging
Background:
- Ischaemic heart disease can lead to complex cardiac complications.
- Ventricular tachycardia and heart failure indicate severe cardiac dysfunction.
- Silent myocardial infarction poses diagnostic challenges.
Observation:
- A 70-year-old male presented with ventricular tachycardia and left ventricular failure.
- A communication was identified between a posterior left ventricular aneurysm and the right atrium.
- The underlying myocardial infarction was asymptomatic.
Findings:
- The left ventricular-right atrial communication was diagnosed using transoesophageal echocardiography.
- Surgical intervention successfully closed the defect.
- The patient experienced an uneventful recovery post-operation.
Implications:
- This case represents the first reported instance of a left ventricular-right atrial communication secondary to ischaemic heart disease.
- Transoesophageal echocardiography is crucial for diagnosing and managing such rare cardiac defects.
- Early diagnosis and surgical repair can lead to favorable patient outcomes.
Related Concept Videos
Chambers of the Heart
The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...
Deoxygenated blood from the body is received in the right...
Coronary Circulation
The heart, an organ critical to survival, gets nourishment not from the blood it pumps but from a separate circulation system known as coronary circulation. This is the shortest circulation in the body and is responsible for supplying the heart with the nutrients it needs to function effectively.
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
Cardiac Catheterization II: Right Heart Catheterization
Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
Aortic Regurgitation I: Introduction
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
Aneurysm I: Introduction
An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
Aneurysm III: Interprofessional Care
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...

