Vasopressin versus dopamine for treatment of hypotension in extremely low birth weight infants: a randomized, blinded

Danielle R Rios1, Jeffrey R Kaiser2

  • 1Department of Pediatrics, Section of Neonatology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX.

The Journal of Pediatrics
|February 3, 2015
PubMed

Insights

Vasopressin is a safe initial therapy for hypotension in extremely low birth weight (ELBW) infants, showing similar blood pressure response to dopamine. ELBW infants treated with vasopressin required less surfactant and had lower PaCO2 levels.

Area of Science:

  • Neonatal Medicine
  • Pediatric Pharmacology
  • Critical Care

Background:

  • Hypotension is a common complication in extremely low birth weight (ELBW) infants.
  • Early intervention is crucial to prevent organ damage and improve outcomes in ELBW neonates.

Purpose of the Study:

  • To compare the efficacy and safety of vasopressin versus dopamine as initial therapy for hypotension in ELBW infants within the first 24 hours of life.

Main Methods:

  • A blinded, randomized trial involving ELBW infants (gestation ≤ 30 weeks) with early hypotension.
  • Infants received either vasopressin or dopamine, with normotensive infants serving as a comparison group.

Main Results:

  • Vasopressin and dopamine demonstrated similar efficacy in achieving adequate blood pressure in 90% of ELBW infants.
  • The vasopressin group required fewer surfactant doses and had lower PaCO2 levels.
  • Infants in the vasopressin group did not experience tachycardia, unlike the dopamine group.

Conclusions:

  • Vasopressin is a safe and potentially beneficial initial treatment for early hypotension in ELBW infants.
  • Results support further investigation through larger randomized controlled trials comparing vasopressin and dopamine.
Abstract

Related Concept Videos

Antihypertensive Drugs: Vasodilators01:23

Antihypertensive Drugs: Vasodilators

Vasodilators, primarily affecting the smooth muscles within arterial and venous walls, are commonly used for hypertension treatment. Medications such as minoxidil and hydralazine primarily target arteries and arterioles, while sodium nitroprusside acts on arterioles and venules. Minoxidil, functioning as a prodrug, is metabolized by hepatic sulfotransferase into its active form, minoxidil sulfate, after oral administration. This metabolite binds to the sulfonylurea receptor (SUR) component of...
2.5K
Hormonal Regulation of Blood Pressure01:17

Hormonal Regulation of Blood Pressure

Endocrinal or hormonal intervention in the cardiovascular system is predominantly exerted by the catecholamines - epinephrine and norepinephrine, as well as a slew of hormones that interact with renal function to modulate blood volume.
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction...
9.2K
Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
915
Adrenergic Antagonists: ɑ and β-Receptor Blockers01:31

Adrenergic Antagonists: ɑ and β-Receptor Blockers

Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike conventional β-blockers, which can induce peripheral vasoconstriction, third-generation drugs block α1 adrenoceptors. This promotes vasodilation through several mechanisms, such as increased nitric oxide production, inhibition of calcium ion entry, opening of potassium ion channels, and antioxidant action. Labetalol, for instance, is...
1.4K