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Related Concept Videos

Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

117
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...
117
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

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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...
180
Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

126
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...
126
Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

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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...
165
Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

168
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...
168

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Updated: Nov 23, 2025

Donor Posterior Atrial Flap Rotation for Left Atrial Cuff Reconstruction in Lung Transplantation
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Triangular resection versus folding repair for simple posterior mitral leaflet lesions: case-control study.

Ken Nakamura1, Kouan Orii1, Takayuki Abe1

  • 1Department of Cardiac Surgery, Saitama Cardiovascular and Respiratory Center, Kumagaya-shi, Saitama, Japan.

Cardiovascular Diagnosis and Therapy
|December 31, 2020
PubMed
Summary

Folding repair (FR) offers a larger mitral valve area post-surgery compared to triangular resection (TR) for mitral regurgitation. FR may also be simpler for surgeons, potentially improving outcomes in mitral valve repair.

Keywords:
Triangular resection (TR)folding repair (FR)mitral valve repair

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Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery
  • Minimally Invasive Cardiac Surgery

Background:

  • Triangular resection (TR) is a common mitral valve repair technique, but can restrict posterior leaflet motion.
  • Limited comparative data exists between TR and folding repair (FR) for mitral valve repair.

Purpose of the Study:

  • To compare the effectiveness and short-term impact of TR versus non-resection-based FR in mitral valve repair.

Main Methods:

  • 36 patients with moderate to severe mitral regurgitation (MR) underwent either TR (n=18) or FR (n=18).
  • Pre- and post-operative echocardiographic data were collected and analyzed.
  • Statistical analysis included t-test, Mann-Whitney U-test, chi-squared, and Fisher's exact tests (P<0.05 significant).

Main Results:

  • No significant differences in operative time or ICU/hospital stay between TR and FR.
  • FR resulted in a significantly larger post-operative mitral valve area (P=0.029).
  • Regurgitation regression rates were 94% (FR) and 88.8% (TR).

Conclusions:

  • Both TR and FR demonstrate comparable outcomes and durability in mitral valve repair.
  • FR is a simpler technique, potentially suitable for less experienced surgeons.
  • FR offers a larger mitral valve area, suggesting potential benefits for leaflet function.