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Related Concept Videos

Cardiomyopathy VII: Pre and Post Operative Nursing Management01:28

Cardiomyopathy VII: Pre and Post Operative Nursing Management

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Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...
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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
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Related Experiment Video

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Long-Term Changes in Cardiac Structure and Function Following Bariatric Surgery.

Hidemi Sorimachi1, Masaru Obokata1, Kazunori Omote1

  • 1Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA.

Journal of the American College of Cardiology
|October 13, 2022
PubMed
Summary

Long-term weight loss after bariatric surgery improves cardiac structure and function, particularly with visceral fat reduction. However, left atrial issues may still progress, indicating a need for targeted interventions.

Keywords:
bariatric surgerycardiac functioncardiac structureheart failureobesity

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Area of Science:

  • Cardiology
  • Bariatric Surgery
  • Obesity Medicine

Background:

  • Short-term weight loss (WL) shows heart benefits, but long-term effects and visceral fat reduction impacts are less understood.
  • Obesity significantly affects cardiac health, necessitating research into effective long-term weight management strategies.

Purpose of the Study:

  • To assess long-term effects of bariatric surgery-induced WL on cardiac structure and function.
  • To evaluate changes in body composition, including epicardial adipose thickness and visceral adipose tissue (VAT).
  • To understand the relationship between visceral fat reduction and cardiac remodeling.

Main Methods:

  • 213 obese patients underwent echocardiography pre- and post-bariatric surgery (>180 days).
  • Abdominal VAT measured via CT scan in 52 patients.
  • Long-term follow-up averaged 5.3 years.

Main Results:

  • Significant decrease in BMI (22%), blood pressure, and fasting glucose.
  • Reduced epicardial adipose thickness (14%) and VAT (30%).
  • Improved left and right ventricular longitudinal strain, but deteriorated left atrial strain and increased atrial volume/pressure.

Conclusions:

  • Long-term WL post-bariatric surgery promotes cardiac reverse remodeling and improves biventricular mechanics.
  • Visceral fat reduction is strongly linked to positive cardiac outcomes, highlighting its importance in WL interventions.
  • Despite improvements, left atrial myopathy and congestion may persist, suggesting further research is needed.