Related Experiment Video
Updated: Mar 13, 2026
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
11.9K
Acquired discrete subaortic stenosis late after mitral valve replacement
Jagdish C Mohan1, Madhu Shukla1, Vishwas Mohan1
1Fortis Institute of Cardiac Sciences, Fortis Hospital, Shalimar Bagh, New Delhi 88, India.
Indian Heart Journal
|October 19, 2016
Summary
Acquired left ventricular outflow obstruction is rare after mitral valve replacement (MVR). This study highlights two cases of severe subaortic stenosis developing five years post-MVR, emphasizing the need for vigilance in symptomatic patients.
Area of Science:
- Cardiology
- Cardiac Surgery
- Biomedical Engineering
Background:
- Acquired left ventricular outflow obstruction (LVOTO) is uncommon after mitral valve replacement (MVR).
- Previous reports on LVOTO post-MVR are limited.
- Bioprosthetic valves are frequently used in MVR procedures.
Observation:
- Two female patients developed severe discrete subaortic stenosis (DSS) five years after MVR.
- Both patients received a 27-mm porcine Carpentier-Edwards bioprosthesis.
- Mitral valve leaflets were preserved in both cases during MVR.
Findings:
- Preservation of the subvalvular apparatus during bioprosthetic MVR may pose a risk for late-onset LVOTO.
- Discrete subaortic stenosis can manifest years after mitral valve surgery.
- The specific type of bioprosthesis (porcine Carpentier-Edwards) and valve size (27-mm) were noted.
Implications:
- Clinicians should consider the potential for very late LVOTO in patients with bioprosthetic MVR, especially with subvalvular apparatus preservation.
- Symptomatic patients with a history of MVR require thorough evaluation for outflow tract obstruction.
- Further research is warranted to elucidate the mechanisms and incidence of late LVOTO after MVR with leaflet preservation.
Keywords:
Acquired discrete subaortic stenosisCarpentier-Edwards bioprosthesisMitral stenosisMitral valve replacementMore Related Videos
14:14Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
14.8K
08:42Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
Published on: February 11, 2022
4.4K
Related Concept Videos
01:22Mitral Stenosis I: Introduction
1.1K
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...
1.1K
01:23Mitral Stenosis II: Clinical features and Diagnostic Tests
383
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...
383
01:26Mitral Stenosis III: Medical Management
413
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...
413
01:27Mitral Stenosis IV: Nursing Management
339
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...
339
01:25Mitral Regurgitation III: Medical Management
493
Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
493
01:20Mitral Regurgitation I: Introduction
833
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...
833