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Long-term treatment with captopril in pediatric patients with severe hypertension and chronic renal failure

Insights

Captopril effectively lowered blood pressure in pediatric patients with hypertension undergoing regular hemodialysis. This angiotensin-converting enzyme inhibitor treatment improved blood pressure control in this vulnerable population.

Area of Science:

  • Pediatric Nephrology
  • Cardiovascular Pharmacology
  • Renal Medicine

Background:

  • Hypertension is a common complication in children with end-stage renal disease requiring hemodialysis.
  • Existing antihypertensive treatments often fail to adequately control blood pressure in this patient group.

Purpose of the Study:

  • To evaluate the efficacy and safety of captopril in hypertensive pediatric patients undergoing regular hemodialysis.
  • To assess the impact of captopril on blood pressure, plasma renin activity, and plasma aldosterone levels.

Main Methods:

  • A cohort of 42 hypertensive pediatric patients (1-17 years) on regular hemodialysis received captopril.
  • Patients initially had insufficient blood pressure control despite existing antihypertensive therapy.
  • Dosage ranged from 0.3 to 3 mg/kg/day, with a maximum effective dose of 3 mg/kg/day.

Main Results:

  • Captopril significantly reduced both systolic (162 to 114 mmHg) and diastolic (106 to 86 mmHg) blood pressures.
  • Plasma renin activity increased significantly, while plasma aldosterone levels decreased to normal for age.
  • Treatment was sustained for a mean of over 3 years.

Conclusions:

  • Captopril is an effective antihypertensive agent for pediatric patients with end-stage renal disease on hemodialysis.
  • The drug normalizes aldosterone levels and demonstrates long-term efficacy and safety in this population.

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