Methodist Journal

IN THIS ISSUE

Diabetes and the Heart

Vol 14, Issue 4 (2019)


FEATURED GUEST EDITOR

ISSUE INTRO

The Intersection of Diabetes and Cardiovascular Disease

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RECOGNITIONS

Guest Editors Steven Petak and Archana Sadhu Guide Issue on Diabetes and the Heart

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REVIEW ARTICLES See More

Cardiac Autonomic Neuropathy in Diabetes Mellitus

Stage-Based Management of Type 2 Diabetes Mellitus with Heart Failure

Imaging to Stratify Coronary Artery Disease Risk in Asymptomatic Patients with Diabetes

Update on Management of Type 2 Diabetes for Cardiologists

New Therapeutic Strategies for Type 2 Diabetes

Prediabetes: Why Should We Care?

Central Venous Pathologies: Treatments and Economic Impact

Venous Thrombosis and Post-Thrombotic Syndrome: From Novel Biomarkers to Biology

CASE REPORTS See More

Loperamide Mimicking Brugada Pattern

Reversed Pulsus Paradoxus in Right Ventricular Failure

Mycobacterium Chimaera Mimicking Sarcoidosis

Immune Checkpoint Inhibitor Related Cardiotoxicity

MUSEUM OF HMH MULTIMODALITY IMAGING CENTER See More

A Right Ventricular Mass

CLINICAL PERSPECTIVES See More

POINTS TO REMEMBER

The Kidney as an Endocrine Organ

EXCERPTA

The Other Side of the Prescription

EXCERPTA

Telemedicine Shakes Up the ICU Experience

POINTS TO REMEMBER

Venous Thrombosis in Nephrotic Syndrome

EDITORIALS

Letter to the Editor in response to “Role of Subcutaneous Leadless Implantable Cardioverter Defibrillator in Young Patients

Vol 14, Issue 2 (2018)

Article Full Text

MUSEUM OF HMH MULTIMODALITY IMAGING CENTER

A Case of Infected Mitral-Aortic Intervalvular Fibrosa Pseudoaneurysm

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Article Citation:

Malahfji M, Chamsi-Pasha M, Chang SM. A Case of Infected Mitral-Aortic Intervalvular Fibrosa Pseudoaneurysm. Methodist DeBakey Cardiovasc J. 2018;14(2):151-152.

doi: 10.14797/mdcj-14-2-151

Keywords
intervalvular fibrosa pseudoaneurysm , prosthetic valve infection

An 81-year-old woman presented with fever and shortness of breath. She had an aortic valve replacement in 2012 (a 19-mm St. Jude Trifecta bioprosthetic valve) as well as coronary artery bypass grafting. Blood cultures were positive for vancomycin-intermediate Staphylococcus aureus. Transthoracic echocardiography showed degeneration of the aortic valve prosthesis with severe aortic insufficiency and a tricuspid valve vegetation.

Transesophageal echocardiography demonstrated pseudoaneurysm formation in the mitral-aortic intervalvular fibrosa (MAIVF) (Figures 1, 3). Color Doppler showed systolic and diastolic flow into the pseudoaneurysm (Figure 2). Cardiac computed tomography showed that the ruptured abscess cavity extended from the aortic root to the proximal ascending aorta (Figure 4, red arrow).

The patient underwent debridement of the aortic annulus as well as aortic root and ascending aorta replacement using a CryoLife allograft (CryoLife, Inc.). The tricuspid valve vegetation was removed, and intravenous antibiotic therapy was continued for 8 weeks with daptomycin and ceftaroline followed by lifelong doxycycline therapy. She was discharged to rehabilitation 2 weeks later.

The MAIVF is a fibrous structure located at the junction of the anterior mitral leaflet and the noncoronary cusp of the aortic valve. It is relatively avascular, which makes it prone to infection and injury resulting in pseudoaneurysm formation. When making the diagnosis, it is important to visualize the echo-free space with systolic expansion and diastolic collapse of the pseudoaneurysm.1 Patients with ring abscesses in the MAIVF region, prosthetic aortic valves, or histories of endocarditis are at higher risk for developing pseudoaneurysm of the MAIVF. Transesophageal echocardiography is critical to make the diagnosis.2

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References
  1. Afridi I, Apostolidou MA, Saad RM, Zoghbi WA. Pseudoaneurysms of the mitral-aortic intervalvular fibrosa: dynamic characterization using transesophageal echocardiographic and Doppler techniques. J Am Coll Cardiol 1995 Jan;25(1):137-45.
  2. Sudhakar S, Sewani A, Agrawal M, Uretsky BF. Pseudoaneurysm of the mitral-aortic intervalvular fibrosa (MAIVF): A comprehensive review. J Am Soc Echocardiogr. 2010 Oct;23(10):1009-18.

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