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Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

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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Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy

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Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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...
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
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Cardiomyopathy IV: Restrictive Cardiomyopathy

Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...

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Related Experiment Video

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Modeling and Evaluation of Murine Diabetic Cardiomyopathy Model
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Modeling and Evaluation of Murine Diabetic Cardiomyopathy Model

Published on: November 29, 2024

Abnormal glucose and lipid control in non-ischemic left ventricular dysfunction.

Danilo Neglia1, Tiziana Sampietro, Cecilia Vecoli

  • 1CNR Institute of Clinical Physiology, Pisa, Italy.

Journal of Nuclear Cardiology : Official Publication of the American Society of Nuclear Cardiology
|August 11, 2012
PubMed
Summary

Low high-density lipoprotein cholesterol (HDL-C) and non-insulin-dependent diabetes/insulin resistance (NIDD/IR) are linked to worse left ventricular (LV) dysfunction and reduced blood flow in the heart muscle. These cardiovascular risk factors highlight key areas for managing non-ischemic LV conditions.

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Reduction in Left Ventricular Wall Stress and Improvement in Function in Failing Hearts using Algisyl-LVR
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Reduction in Left Ventricular Wall Stress and Improvement in Function in Failing Hearts using Algisyl-LVR

Published on: April 8, 2013

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Last Updated: May 19, 2026

Modeling and Evaluation of Murine Diabetic Cardiomyopathy Model
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Reduction in Left Ventricular Wall Stress and Improvement in Function in Failing Hearts using Algisyl-LVR
07:24

Reduction in Left Ventricular Wall Stress and Improvement in Function in Failing Hearts using Algisyl-LVR

Published on: April 8, 2013

Area of Science:

  • Cardiology
  • Cardiovascular Imaging
  • Metabolic Syndrome

Background:

  • Cardiovascular risk factors are typically linked to coronary atherosclerosis.
  • This study investigates their association with left ventricular (LV) dysfunction, including dilatation, impaired contractility, and reduced myocardial blood flow (MBF) in patients without ischemic heart disease.

Purpose of the Study:

  • To determine if cardiovascular risk factors are associated with LV dilatation, contractile impairment, and reduced MBF in patients with non-ischemic LV dysfunction.
  • To identify specific risk factors contributing to the severity of LV impairment and reduced MBF.

Main Methods:

  • Studied 81 patients with mild-to-severe non-ischemic LV dysfunction (ejection fraction 37% ± 12%).
  • Assessed absolute myocardial blood flow (MBF) using positron emission tomography with (13)N-ammonia at rest and during hyperemia (dipyridamole).
  • Employed multivariate logistic regression to analyze associations between risk factors and LV dysfunction/MBF.

Main Results:

  • Overt LV dysfunction was present in 52% of patients; severely depressed hyperemic MBF in 51%.
  • Low high-density lipoprotein cholesterol (HDL-C) and newly diagnosed non-insulin-dependent diabetes/insulin resistance (NIDD/IR) were independently associated with overt LV dysfunction.
  • Low HDL-C and NIDD/IR were also independently associated with severely depressed hyperemic MBF.

Conclusions:

  • Low HDL-C and NIDD/IR are significant predictors of more severe LV impairment.
  • These metabolic factors are associated with reduced hyperemic MBF in patients with non-ischemic LV dysfunction.
  • Highlights the importance of managing dyslipidemia and diabetes in this patient population.