Influence of Age, Heart Failure and ACE Inhibitor Treatment on Plasma Renin Activity in Children: Insights from a

Melina Steichert1, Willi Cawello1, Milica Bajcetic2

  • 1Institute of Clinical Pharmacy and Pharmacotherapy, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany.

Insights

Plasma renin activity (PRA) is influenced by age, heart failure, and ACE inhibitors in children. Understanding these factors is crucial for using PRA as a prognostic marker in pediatric heart failure.

Area of Science:

  • Pediatric Cardiology
  • Renal Physiology
  • Pharmacology

Background:

  • Plasma renin activity (PRA) is a prognostic marker in adult heart failure.
  • Assessing PRA in pediatric heart failure requires understanding influencing factors like age and treatment.
  • This study evaluates the impact of age, heart failure, and ACE inhibitors on pediatric PRA levels.

Approach:

  • Systematic literature search for PRA levels in healthy children and those with heart failure.
  • Analysis of PRA data from the LENA project in children with heart failure, measuring levels before and during enalapril treatment.
  • Statistical analysis to determine the influence of age, heart failure severity, and ACE inhibitor use on PRA.

Key Points:

  • PRA levels are significantly higher in neonates compared to older children.
  • Children with heart failure exhibit 3-4 times higher PRA than healthy peers.
  • Angiotensin-converting enzyme inhibitor (ACEi) enalapril significantly increased PRA in pediatric heart failure patients.

Conclusions:

  • Age, heart failure status, and ACEi treatment notably influence PRA in children.
  • Accurate assessment of PRA as a clinical parameter in pediatric heart failure necessitates considering these factors.
  • Findings provide critical insights for the clinical application of PRA in pediatric cardiology.
Abstract

Related Concept Videos

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...
433
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors01:30

Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors

Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
645
Antihypertensive Drugs: Direct Renin Inhibitors01:25

Antihypertensive Drugs: Direct Renin Inhibitors

The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
632
Hormonal Regulation01:33

Hormonal Regulation

The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
33.2K
Factors Affecting Renal Clearance: Renal Impairment01:17

Factors Affecting Renal Clearance: Renal Impairment

Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
95
Antihypertensive Drugs: Angiotensin II Receptor Blockers01:30

Antihypertensive Drugs: Angiotensin II Receptor Blockers

In the renin-angiotensin-aldosterone system, a hormone called angiotensin II plays a crucial role. It binds to the AT1 receptors in vascular smooth muscles coupled with Gq proteins. The activation of these receptors activates an enzyme called phospholipase C, which releases two molecules: inositol trisphosphate and diacylglycerol. These molecules cause a chain reaction that leads to the phosphorylation of myosin light chains and promotes interaction between actin and myosin, leading to smooth...
735