Related Experiment Video
Updated: May 2, 2026
09:31
Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography
Published on: January 27, 2023
2.0K
Folded Melody valve technique for complex right ventricular outflow tract.
Sophie Malekzadeh-Milani1, Mehul Patel, Younes Boudjemline
1Centre de Référence Malformations Cardiaques Congénitales Complexes - M3C, Necker Hospital for Sick Children, Assistance Publique des Hôpitaux de Paris, Paediatric Cardiology, Paris, France.
Summary
A novel "folded Melody valve" technique addresses challenges in implanting the Melody valve in patients with dysfunctional right ventricle to pulmonary artery conduits due to unfavorable landing zone dimensions.
Area of Science:
- Cardiovascular medicine
- Interventional cardiology
- Medical device technology
Background:
- Percutaneous implantation of the Melody valve is standard for managing dysfunctional right ventricle (RV) to pulmonary artery (PA) conduits.
- Variations in right ventricular outflow tract (RVOT) dimensions can create unfavorable landing zones for Melody valve implantation.
Observation:
- A patient presented with a complex, dysfunctional RV to PA conduit.
- The RVOT landing zone dimensions were deemed unfavorable for standard Melody valve implantation.
Findings:
- A novel technique involving a "folded Melody valve" was successfully employed.
- This technique allowed for the implantation of the Melody valve in a challenging anatomical configuration.
Implications:
- The "folded Melody valve" technique offers a potential solution for patients with unfavorable RVOT anatomy.
- This approach may expand the applicability of percutaneous Melody valve implantation in complex RV-PA conduit cases.
- Further research is warranted to evaluate the long-term efficacy and safety of this novel technique.
Related Concept Videos
01:20Mitral Regurgitation I: Introduction
1.3K
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...
1.3K
01:16Heart Valves
14.9K
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
14.9K
01:15Aortic Regurgitation I: Introduction
1.6K
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
1.6K
01:22Mitral Stenosis I: Introduction
1.8K
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...
1.8K
01:25Mitral Regurgitation III: Medical Management
686
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...
686
01:27Mitral Valve Prolapse I: Introduction
1.1K
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...
1.1K