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Related Concept Videos

Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

535
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...
535
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...
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Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

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Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
598
Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

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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...
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Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

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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...
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Mitral Valve Prolapse III: Nursing Management01:19

Mitral Valve Prolapse III: Nursing Management

586
The nursing management of Mitral Valve Prolapse, or MVP, centers around patient education, symptom monitoring, and lifestyle modifications.Patient Education on MVP Diagnosis and Heredity: Nurses should provide comprehensive education about MVP, a condition where the mitral valve does not close appropriately during heartbeats. This education often includes the condition's pathophysiology, symptoms, and potential complications, like arrhythmias or mitral regurgitation. Though not fully...
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Related Experiment Video

Updated: May 4, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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Supra-annular aortic valve replacement with a mechanical prosthesis.

Marko Turina1

  • 1University Hospital, Rämistrasse 100, 8091 Zurich, Switzerland.

Multimedia Manual of Cardiothoracic Surgery : MMCTS
|January 14, 2014
PubMed
Summary

Supra-annular aortic valve replacement is key for small aortic annuli to avoid patient-prosthesis mismatch. This technique ensures proper leaflet motion and prevents coronary obstruction, optimizing surgical outcomes.

Area of Science:

  • Cardiac Surgery
  • Cardiovascular Medicine
  • Prosthetic Valve Technology

Background:

  • Patient-prosthesis mismatch (PPM) is a significant concern in aortic valve replacement (AVR), especially with small aortic annuli.
  • Supra-annular placement of the aortic valve prosthesis offers a solution to mitigate PPM in such cases.

Purpose of the Study:

  • To outline the critical surgical steps for supra-annular aortic valve prosthesis implantation.
  • To emphasize techniques that prevent complications and ensure optimal prosthesis function.

Main Methods:

  • Detailed description of diseased valve removal and annular decalcification.
  • Emphasis on assessing prosthesis seating for leaflet mobility and non-obstruction of coronary ostia.
  • Technique of infra-annular suturing for supra-annular prosthesis placement.

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Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Main Results:

  • Successful supra-annular placement requires meticulous surgical technique.
  • Proper seating is crucial to avoid leaflet restriction and coronary obstruction.
  • Pre-implantation resection of septal hypertrophy may be necessary.

Conclusions:

  • Supra-annular aortic valve prosthesis implantation is an effective strategy for small aortic annuli.
  • Adherence to specific surgical steps ensures optimal prosthesis performance and patient outcomes.
  • This technique helps prevent patient-prosthesis mismatch in challenging anatomies.