# Mitral Valve Prolapse With Mitral Annular Disjunction Causing Ventricular Tachycardia During a Stress Test: A Case Report

## TL;DR

A 63-year-old man with mitral valve prolapse and mitral annular disjunction developed ventricular tachycardia during a stress test, highlighting a rare but serious complication.

## Contribution

This case report highlights MVP with MAD as a potential cause of ventricular arrhythmias during stress.

## Key findings

- A 63-year-old male with MVP and MAD experienced sustained ventricular tachycardia during a stress test.
- The case emphasizes the risk of ventricular arrhythmias in patients with MVP and MAD under physiological stress.
- MAD may serve as a substrate for arrhythmias in patients with MVP.

## Abstract

Mitral valve prolapse (MVP) is a relatively common valvular disorder characterized by displacement of one or both mitral valve leaflets into the left atrium (LA) during systole. Mitral annular disjunction (MAD) is an associated abnormality where a portion of the mitral valve annulus attaches superiorly in the left atrial wall. Although MVP is often considered benign, it can rarely lead to serious complications such as ventricular arrhythmias, especially when MAD is present. Herein, we present a case of a 63-year-old male with MVP and MAD who experienced sustained ventricular tachycardia (VT) during cardiac stress testing. This case underscores the importance of recognizing MVP with MAD as a potential substrate for ventricular arrhythmias, notably under heightened physiological or induced periods of stress.