Calcium and Heart Failure: How Did We Get Here and Where Are We Going?

Natthaphat Siri-Angkul1,2,3, Behzad Dadfar4, Riya Jaleel5

  • 1Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, NJ 07103, USA.

Insights

Heart failure remains a significant global health issue, with high mortality rates despite extensive research. New therapeutic strategies are urgently needed to address the complex pathophysiology of heart failure beyond viewing the heart as a simple pump.

Area of Science:

  • Cardiology
  • Biomedical Research
  • Public Health

Background:

  • Heart failure (HF) presents a substantial and persistent global health challenge, contributing to high mortality rates.
  • Despite decades of research and numerous clinical trials, effective cures for end-stage heart failure remain elusive.
  • The persistent burden of HF underscores limitations in current therapeutic paradigms and highlights the need for innovative approaches.

Purpose of the Study:

  • To underscore the critical need for novel therapeutic strategies in managing heart failure.
  • To emphasize the complexity of heart failure pathophysiology beyond the "heart as a pump" model.
  • To advocate for continued research into advanced treatments for heart failure.

Main Methods:

  • Review of existing literature on heart failure prevalence and therapeutic outcomes.
  • Analysis of trends in clinical trial successes and failures for heart failure treatments.
  • Conceptual exploration of heart failure pathophysiology.

Main Results:

  • High global occurrence and prevalence of heart failure persist.
  • Numerous clinical trials testing pharmaceutical drugs and gene therapy for heart failure have yielded limited success.
  • Existing therapeutic approaches have not adequately addressed the complexity of heart failure.

Conclusions:

  • The heart's function in heart failure is more complex than a simple mechanical pump.
  • Current therapeutic strategies are insufficient, necessitating the discovery of new approaches.
  • Further research is crucial to unravel the intricate pathophysiology of heart failure and develop effective treatments.

Related Concept Videos

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...
55
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...
603
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...
113
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.
63
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...
852
Heart Failure Drugs: Diuretics01:22

Heart Failure Drugs: Diuretics

Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
555