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Related Concept Videos

Endocarditis I: Introduction01:25

Endocarditis I: Introduction

Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...
Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
Aortic Regurgitation I: Introduction01:15

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

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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...
Aneurysm I: Introduction01:30

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...

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Related Experiment Video

Updated: May 26, 2026

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
13:10

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)

Published on: April 24, 2017

Concealed infective endocarditis associated with subaortic left ventricular aneurysm.

Akihiko Ikeda1, Shonosuke Matsushita, Yuzuru Sakakibara

  • 1Department of Cardiovascular Surgery, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.

The Thoracic and Cardiovascular Surgeon
|January 5, 2012
PubMed
Summary

This case highlights concealed infective endocarditis in a subaortic left ventricular aneurysm. Prompt diagnosis and surgical intervention are crucial for managing this rare cardiovascular complication.

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Novel and Innovative Hybrid Technique for Type A Aortic Dissection
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Last Updated: May 26, 2026

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
13:10

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)

Published on: April 24, 2017

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
06:26

Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

Area of Science:

  • Cardiovascular Surgery
  • Infectious Diseases
  • Pathology

Background:

  • Subaortic left ventricular aneurysm is a rare condition often associated with aortic regurgitation.
  • Concealed infective endocarditis presents diagnostic challenges, especially preoperatively.
  • Surgical management of complex aortic pathologies requires careful consideration of potential underlying infections.

Observation:

  • A patient with diagnosed aortic regurgitation and subaortic left ventricular aneurysm showed no preoperative signs of infection.
  • Post-aortic valve replacement, histopathology of the resected aneurysm revealed neutrophil infiltration, indicating infection.
  • The patient experienced a recurrence of infection one year after the initial surgery.

Findings:

  • Histopathological evidence confirmed neutrophil infiltration in the subaortic aneurysm, suggesting concealed infective endocarditis.
  • Despite initial surgical repair, the infection recurred, necessitating further intervention.
  • This case underscores the difficulty in diagnosing infective endocarditis when it is not clinically apparent.

Implications:

  • Early recognition and aggressive treatment of infective endocarditis are vital in patients with subaortic aneurysms.
  • Recurrence of infection highlights the need for long-term monitoring and potentially staged surgical approaches.
  • This case contributes to understanding the complex interplay between structural heart disease and infection.