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Pseudoaneurysm of the mitral-aortic intervalvular fibrosa on a native aortic valve following infective endocarditis
Kayo Takimoto1, Fumio Arai, Takashi Kita
1Department of Anesthesiology, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka, Osaka, 543-8502, Japan. kayota1219@yahoo.co.jp
Abstract:
Pseudoaneurysm of the mitral-aortic intervalvular fibrosa (MAIVF) rarely forms on native aortic valve after infective endocarditis (IE). It is often fatal because of its rapid progress, high rates of rupture and recurrence, and worsening effects on the systemic condition. Echocardiography, especially transesophageal echocardiography, plays an important role in the diagnosis and assessment of this condition. We experienced a rare case of a patient with an unfortunate course following native aortic valve IE. After the patient had undergone surgical evacuation of a blood clot due to the rupturing of an embolomycotic cerebral aneurysm, a pseudoaneurysm of the MAIVF was found. Aortic valve replacement and pseudoaneurysm repair were performed 3 months after the neurosurgery. Echocardiographic still images were obtained during these two operations.
Insights
Pseudoaneurysm of the mitral-aortic intervalvular fibrosa (MAIVF) is a rare, often fatal complication of infective endocarditis (IE). Early diagnosis via echocardiography is crucial for managing this severe aortic valve condition.
Area of Science:
- Cardiology
- Infectious Diseases
- Medical Imaging
Background:
- Infective endocarditis (IE) can lead to rare but severe complications affecting the native aortic valve.
- Pseudoaneurysm of the mitral-aortic intervalvular fibrosa (MAIVF) is a life-threatening condition with high rupture and recurrence rates.
Observation:
- A patient with native aortic valve IE developed a pseudoaneurysm of the MAIVF after cerebral aneurysm rupture and evacuation.
- Echocardiography, including transesophageal echocardiography, was vital for diagnosing and assessing the MAIVF pseudoaneurysm.
Findings:
- The patient underwent successful aortic valve replacement and pseudoaneurysm repair three months post-neurosurgery.
- Echocardiographic images were captured during both neurosurgery and cardiac repair procedures.
Implications:
- This case highlights the critical role of echocardiography in diagnosing MAIVF pseudoaneurysms post-IE.
- Prompt surgical intervention is essential for improving outcomes in patients with this rare cardiac complication.
Related Concept Videos
Mitral Stenosis I: Introduction
Endocarditis I: Introduction
Aneurysm I: Introduction
Aortic Regurgitation I: Introduction
Endocarditis II: Clinical Features of Infective Endocarditis
Mitral Stenosis III: Medical Management

