The efficacy and safety of ACEI in adult patients with hypertension and proteinuria after renal transplantation is proven however data on the effectiveness of ACEI in transplanted children are rare. The aim of the present study was to investigate the effect of ramipril on proteinuria and BP in children after R-Tx. Twelve transplanted children (median age 15.3 yr, median time after R-Tx 4.5 yr) with proteinuria with or without hypertension were prospectively treated with ramipril for six months. Proteinuria was assessed as protein/creatinine ratio. Office BP was evaluated and hypertension defined as BP > or =95th centile. Graft function was assessed (Schwartz formula). The starting dose of ramipril was 1.5 mg/m(2)/24-h. Proteinuria declined in 92% of children from a median 39 to 22 mg/mmol creatinine (p < 0.01). The median decline of proteinuria was 9 mg/mmol creatinine, it reached 23% of the initial values. The prevalence of hypertension did not change significantly (50% initially vs. 33% after six months). Graft function and serum potassium level did not change significantly, two children developed mild hyperkalemia. Ramipril can reduce proteinuria in most transplanted children; its antiproteinuric effect is exhibited even without BP lowering effect.

Department of Pediatrics and Transplantation Center 2nd Faculty of Medicine University Hospital Motol Charles University Prague Prague Czech Republic

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