Related Experiment Video
Updated: Oct 19, 2025
08:12
Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
Published on: May 26, 2023
1.8K
Loop technique for degenerative mitral regurgitation due to extended prolapse
Yosuke Takahashi1, Yukio Abe2, Hiromichi Fujii1
1Department of Cardiovascular Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
Journal of Cardiac Surgery
|September 20, 2021
Summary
The loop technique effectively repairs mitral valve prolapse, even in complex cases with extensive prolapse. Midterm outcomes show high success rates, demonstrating its utility in severe mitral regurgitation patients.
Area of Science:
- Cardiovascular Surgery
- Cardiac Valve Repair
- Mitral Valve Disease
Background:
- Severe mitral regurgitation (MR) often results from mitral valve (MV) prolapse.
- The extensiveness of MV prolapse can influence surgical outcomes.
- The loop technique is a method for MV repair.
Purpose of the Study:
- To evaluate the midterm efficacy of the loop technique for mitral valve repair in patients with extended prolapse.
- To assess the impact of prolapse extensiveness on surgical outcomes.
Main Methods:
- A cohort of 407 patients with severe MR underwent MV repair using the loop technique between October 2008 and August 2020.
- Patients were categorized into simple, intermediate, and extensive prolapse groups based on a prolapse score (p-score).
- Follow-up duration ranged from 287 to 2899 days (median, 872 days).
Main Results:
- Freedom from significant MR at 5 and 7 years was 91%.
- The extensive prolapse group showed increased incidences of Barlow disease, number of loops used, and technique score.
- Seven-year freedom from significant MR rates were 92% (simple), 87% (intermediate), and 94% (extensive), with no significant difference between groups (p=0.995).
Conclusions:
- The loop technique demonstrates utility and effectiveness in mitral valve repair, even in patients with extensive prolapse.
- The technique provides durable results for severe mitral regurgitation across different prolapse severities.
Related Concept Videos
01:27Mitral Valve Prolapse I: Introduction
73
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...
73
01:20Mitral Regurgitation I: Introduction
82
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...
82
01:25Mitral Regurgitation III: Medical Management
54
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...
54
01:28Mitral Regurgitation IV: Nursing Management
122
Mitral regurgitation (MR) is a condition where the mitral valve does not close properly, leading to the backward flow of blood from the left ventricle into the left atrium during systole. This condition can arise from various causes, including rheumatic fever, infective endocarditis, or degenerative valve disease. Effective nursing management is crucial to optimizing patient outcomes and involves comprehensive assessment and targeted interventions.Comprehensive Patient AssessmentA detailed...
122
01:22Mitral Valve Prolapse II: Assessment and Management
72
IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
72
01:26Mitral Stenosis III: Medical Management
46
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...
46