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Intravenous nicardipine for treatment of severe hypertension in children
J T Flynn1, T A Mottes, P D Brophy
1Division of Pediatric Nephrology, Department of Pediatrics and Communicable Diseases, C. S. Mott Children's Hospital, University of Michigan, Ann Arbor, USA.
Insights
Intravenous nicardipine effectively lowered blood pressure in children with severe hypertension. This study found nicardipine achieved significant blood pressure reduction, with most patients responding well.
Area of Science:
- Pediatric critical care medicine
- Cardiovascular pharmacology
Background:
- Severe hypertension in children is a critical condition requiring prompt management.
- Intravenous antihypertensive agents are often necessary for rapid blood pressure control in pediatric intensive care units.
Purpose of the Study:
- To evaluate the efficacy and safety of intravenous nicardipine for treating severe hypertension in pediatric patients.
- To determine the effectiveness of nicardipine as a single agent versus adjunctive therapy.
Main Methods:
- Retrospective review of medical records for 29 children with severe hypertension treated with intravenous nicardipine.
- Analysis of nicardipine dosage, blood pressure response, time to control, and adverse events.
- Assessment of concurrent antihypertensive medications.
Main Results:
- Intravenous nicardipine achieved a 16% reduction in systolic and a 23% reduction in diastolic blood pressure.
- Blood pressure control was reached within an average of 2.7 hours.
- Nicardipine was effective as a monotherapy in 84% of treatment instances.
Conclusions:
- Intravenous nicardipine is an effective agent for lowering blood pressure in children with severe hypertension in an intensive care setting.
- Close patient monitoring is crucial during nicardipine administration.
- Further prospective studies are warranted to validate these findings.
Objective:
To examine the effect of intravenous nicardipine in the treatment of children with severe hypertension.
Methods:
The medical records of 29 children (mean age 94 months) treated with intravenous nicardipine were retrospectively reviewed. The mean duration of severe hypertension before nicardipine use was 12.5 hours. Most (74%) patients were receiving other antihypertensive agents before nicardipine.
Results:
The initial nicardipine dose was 0.8 +/- 0.3 microg/kg/min (mean +/- SD). The mean effective dose was 1.8 +/- 1.0 microg/kg/min (range, 0.3 to 4.0). Blood pressure control was achieved within 2.7 +/- 2.1 hours after nicardipine was started. Nicardipine treatment produced a 16% reduction in systolic blood pressure, a 23% reduction in diastolic blood pressure, and a 7% increase in heart rate. Nicardipine was effective as a single agent on 26 (84%) of 31 occasions. Adverse effects included tachycardia, flushing, palpitations, and hypotension.
Conclusions:
When administered in the intensive care unit setting with close patient monitoring, intravenous nicardipine effectively lowered blood pressure in children with severe hypertension. Larger prospective studies should be conducted to confirm these findings.
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