Work

Postsurgical Pseudoaneurysm of the Mitral-Aortic Intervalvular Fibrosa in a 3-Year-Old Boy

Year: 2026

Type: article

Abstract: The mitral-aortic intervalvular fibrosa (MAIVF) is a key anatomical structure located between the aortic valve (AV) and mitral valve (MV), providing support to both valve apparatuses. A pseudoaneurysm, also known as a false aneurysm, in this region occurs when there is a breach in the AV or MV root integrity. This report describes the diagnosis and successful surgical management of an MAIVF pseudoaneurysm in a 3-year-old patient after the resection of a recurrent subaortic membrane. This case is presented to highlight the risk of iatrogenic injury during complex outflow tract surgery and the necessity of vigilant echocardiographic follow-up.

Source: CASE

DOI: 10.1016/j.case.2026.05.002

Authors: Nikita Garg, Mamdouh Al-Ahmadi, Yamuna Sanil, Deemah Mahadin

Institutions: Central Michigan University, Children's Hospital of Michigan

Language: English

Topic: Cardiac Valve Diseases and Treatments

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $950