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Related Concept Videos

Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

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...
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 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 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...
Mitral Regurgitation IV: Nursing Management01:28

Mitral Regurgitation IV: Nursing Management

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...
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...

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A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
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[Beating mitral valve surgery in patients with poor left ventricular function].

Hiroshi Kiyama1, Nobuaki Kaki, Daisuke Shiomi

  • 1Department of Cardiovascular Surgery, Sayama Hospital, Sayama, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|August 30, 2013
PubMed
Summary

Beating-heart mitral valve surgery may reduce cardiac events in patients with poor left ventricular function. This technique, compared to conventional cardiac arrest surgery, showed promising results without compromising surgical accuracy.

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Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery
  • Minimally Invasive Cardiac Surgery

Background:

  • Mitral valve surgery typically involves cardiac arrest using cardioplegia, which can cause reperfusion injury.
  • Patients with impaired left ventricular function (ejection fraction ≤35%) are particularly vulnerable to such injuries.

Purpose of the Study:

  • To compare the outcomes of on-pump beating-heart mitral valve surgery versus conventional mitral valve surgery with cardiac arrest.
  • To evaluate the efficacy of the beating-heart technique in mitigating reperfusion injury in patients with compromised left ventricular function.

Main Methods:

  • A retrospective study involving 36 patients with ejection fraction ≤35% undergoing mitral valve surgery.
  • 21 patients underwent on-pump beating-heart surgery, while 15 patients had conventional surgery with cardiac arrest using blood cardioplegia.

Main Results:

  • The beating-heart group experienced fewer postoperative cardiac events than the arrest group, though this difference was not statistically significant.
  • Visual field and technical accuracy were comparable between the beating-heart and conventional surgery groups.

Conclusions:

  • Beating-heart mitral valve surgery may be a viable option for patients with poor left ventricular function.
  • This technique shows potential for decreasing postoperative cardiac events without compromising surgical precision.