Intermittent dobutamine therapy in patients with advanced congestive heart failure

C Ferroni1, A Fraticelli, E Paciaroni

  • 1Cardiology Department, I.N.R.C.A.-I.R.C.S.S., Via della Montagnola, 164, I-60131 Ancona, Italy.

Insights

Intermittent dobutamine infusions may improve quality of life for elderly patients with advanced congestive heart failure (CHF). This treatment reduced hospitalizations and improved functional class, despite high mortality rates in the study group.

Area of Science:

  • Cardiology
  • Pharmacology
  • Geriatrics

Background:

  • Congestive heart failure (CHF) is a growing public health concern with significant morbidity and mortality.
  • Current treatments for advanced CHF, especially in the elderly, are limited, with heart transplantation being rarely feasible.
  • Improved pharmacological strategies are needed to manage CHF patients and enhance their quality of life.

Purpose of the Study:

  • To evaluate the efficacy and safety of intermittent dobutamine infusions in elderly patients with advanced, ischemic congestive heart failure (NYHA Class IV).
  • To assess the impact of dobutamine treatment on mortality, cardiovascular events, and functional status.

Main Methods:

  • A randomized study involving 24 elderly patients (mean age 75.9 years) with advanced CHF.
  • Intermittent infusions of dobutamine (2, 4, or 6 microg/kg/min for 36 hours every 2-4 weeks) were administered.
  • Patients were followed for an average of ten months, with data collected on mortality, cardiovascular events, and NYHA functional classification.

Main Results:

  • While 12-month mortality remained high at 50%, patients showed improvement in NYHA functional classification during follow-up.
  • A significant decrease in the need for hospitalization was observed in the treated group.
  • Side effects were infrequent, with only two patients discontinuing treatment due to adverse events.

Conclusions:

  • Intermittent dobutamine infusion appears to be a viable treatment option for elderly patients suffering from advanced congestive heart failure refractory to conventional therapies.
  • The treatment demonstrated benefits in functional status and reduced hospitalizations, suggesting a potential role in palliative care for this population.

Related Concept Videos

Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
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,...
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
Heart Failure Drugs: β-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...
Heart Failure Drugs: Inotropic Agents01:26

Heart Failure Drugs: Inotropic Agents

Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
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...