Related Experiment Videos
Efficacy of low-dose dopamine infusion
1Department of Child Health, King's College Hospital, London, UK.
Acta Paediatrica (Oslo, Norway : 1992)
|May 1, 1993
Summary
Low-dose dopamine infusions improved urine output in very premature infants experiencing anuria. However, responses varied, suggesting individual differences in dopamine sensitivity among these vulnerable newborns.
Area of Science:
- Neonatal Physiology
- Pediatric Nephrology
- Pharmacology in Infancy
Background:
- Very immature infants often experience anuria, a critical condition requiring intervention.
- Dopamine is a vasoactive agent with potential renal effects, but its efficacy in this population is not fully established.
Purpose of the Study:
- To evaluate the effect of low-dose dopamine infusion on urine output in very immature infants with prior anuria.
- To identify factors associated with a positive renal response to dopamine in this cohort.
Main Methods:
- A prospective study involving 20 infants with a median gestational age of 27 weeks.
- Administration of a low-dose dopamine infusion after a period of anuria.
- Assessment of urine output and blood pressure changes during the infusion.
Main Results:
- Urine output significantly improved within 48 hours of dopamine initiation.
- A 'good response' (urine output > 2 ml/kg/h) was observed in 13 out of 20 infants.
- Greater blood pressure increase correlated with improved urine output, indicating a potential mechanism.
Conclusions:
- Low-dose dopamine infusion is effective in improving renal function (urine output) in very immature infants.
- Inter-individual variability in dopamine sensitivity may influence treatment outcomes in neonates.