Related Experiment Video
Updated: Oct 26, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
Quadravalvular Noninfectious Endocarditis
Peter P Vlismas1, Jonas J Heymann2, Charles C Marboe3
1Division of Cardiology, Montefiore Medical Center, Bronx, New York.
Abstract:
Nonbacterial thrombotic endocarditis is characterized by sterile thrombi on cardiac valves. This report describes the case of nonbacterial endocarditis without pathologic findings of fibrin or platelet deposition. Quadrivalvular endocarditis was found to be due to immunoglobulin M heavy chain deposition. This was a case of nonbacterial, nonthrombotic quadrivalvular endocarditis, which was termed noninfective endocarditis. (Level of Difficulty: Intermediate.).
Related Concept Videos
Endocarditis I: Introduction
Endocarditis II: Clinical Features of Infective Endocarditis
Endocarditis IV: Nursing Management
Endocarditis III: Medical Management
Mitral Regurgitation I: Introduction
Rheumatic Heart Disease I: Introduction

