Related Experiment Videos

Effect of beta-blocker therapy in elderly patients with dilated cardiomyopathy

Yuji Hara1, Mareomi Hamada, Yuji Shigematsu

  • 1The Second Department of Internal Medicine, Ehime University School of Medicine, Japan. yujihara@m.ehime-u.ac.jp

Insights

Beta-blocker therapy is safe and effective for elderly patients with dilated cardiomyopathy (DCM), improving cardiac function similarly to younger patients. This heart condition treatment benefits all age groups.

Area of Science:

  • Cardiology
  • Geriatric Medicine

Background:

  • Dilated cardiomyopathy (DCM) is a significant cause of heart failure.
  • The efficacy and safety of beta-blocker therapy in elderly DCM patients require further evaluation.

Purpose of the Study:

  • To assess the safety and cardiac benefits of beta-blocker therapy in elderly patients with DCM.
  • To compare treatment effects between older (>/=65 years) and younger (<65 years) DCM patient groups.

Main Methods:

  • 67 DCM patients received beta-blocker therapy for 6 months.
  • Echocardiography and natriuretic peptide levels were measured pre- and post-treatment.
  • Patients were stratified into older (n=20) and younger (n=47) age groups.

Main Results:

  • Beta-blocker therapy was well-tolerated in all patients, with no significant dose difference between groups.
  • Both groups showed reduced left ventricular dimensions and increased ejection fraction.
  • Significant decreases in natriuretic peptide concentrations were observed in both older and younger patients.

Conclusions:

  • Beta-blocker therapy is safe and well-tolerated in elderly patients with DCM.
  • The cardiac benefits of beta-blockers are comparable between older and younger DCM patients.
  • This therapy offers a consistent treatment approach across different age demographics for DCM.

Related Concept Videos

Heart Failure Drugs: &#946;-Blockers01:22

Heart Failure Drugs: β-Blockers

β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation, vasodilation, and...
Adrenergic Antagonists: Pharmacological Actions of &#946;-Receptor Blockers01:27

Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers

β-receptor blockers significantly impact the cardiovascular system by counteracting catecholamine-induced sympathetic responses. These medications decrease heart rate, contractility, and cardiac output, potentially leading to cardiac depression, life-threatening bradycardia, and death. Therapeutically, β-blockers function as mild antihypertensives and are utilized in treating angina pectoris and cardiac arrhythmias. However, nonselective β-blockers inhibit β2-receptors in bronchial smooth...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

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,...
Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
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...