Related Experiment Video

Updated: Jun 14, 2026

Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
08:12

Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels

Published on: May 26, 2023

Mitral stenosis due to pannus overgrowth after rigid ring annuloplasty

Takeshi Oda1, Seiya Kato, Eiki Tayama

  • 1Department of Surgery, Kurume University School of Medicine, Kurume-shi, Fukuoka, Japan. oda@st-mary-med.or.jp

The Journal of Heart Valve Disease
|April 8, 2010
PubMed

Insights

Pannus overgrowth causing mitral stenosis (MS) after mitral valve repair is rare in non-rheumatic cases. This report documents the first case of MS due to pannus formation after using a rigid annuloplasty ring for non-rheumatic mitral regurgitation.

Area of Science:

  • Cardiovascular Surgery
  • Cardiac Pathology

Background:

  • Mitral stenosis (MS) from pannus overgrowth is common after mitral valve repair for rheumatic mitral regurgitation (MR).
  • Pannus formation after mitral valve repair for non-rheumatic MR is rare.
  • Previous studies suggested rigid annuloplasty rings may induce pannus, but pathological confirmation was only documented with flexible rings.

Observation:

  • A patient with non-rheumatic MR underwent mitral valve repair using a 28 mm rigid annuloplasty ring.
  • Three years post-surgery, the patient developed MS due to pannus formation over the rigid annuloplasty ring.

Findings:

  • This case represents the first documented instance of mitral stenosis caused by pannus formation following mitral valve repair with a rigid annuloplasty ring for non-rheumatic mitral regurgitation.
  • Pathological examination at reoperation confirmed pannus overgrowth.

Implications:

  • Highlights a rare complication of mitral valve repair using rigid annuloplasty rings in non-rheumatic MR.
  • Suggests rigid rings may also contribute to pannus formation, similar to flexible rings.
  • Underscores the importance of considering pannus formation in the differential diagnosis of MS after mitral valve repair, irrespective of ring type or etiology.

More Related Videos

Rat Model of Right-Sided Cardiac Remodeling and Arrhythmia Using Pulmonary Artery Banding10:39

Rat Model of Right-Sided Cardiac Remodeling and Arrhythmia Using Pulmonary Artery Banding

Published on: August 30, 2024

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair08:31

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair

Published on: October 16, 2021

Related Concept Videos

Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
Mitral Stenosis IV: Nursing Management01:27

Mitral Stenosis IV: Nursing Management

A comprehensive nursing assessment is essential for patients with valvular heart disease, which involves any dysfunction of the heart valves that could impact blood flow and overall heart function.Subjective Data Collection:Chief Complaint and Present Illness: Start with the patient's primary concerns, focusing on the onset, duration, and progression of cardiac symptoms such as dyspnea, fatigue, chest pain, and palpitations.Past Medical History: Collect detailed information on any previous...
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...