Ángel Alonso Melgar

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BACKGROUND The prevalence of childhood overweight is rising worldwide, but in children on renal replacement therapy (RRT) a poor nutritional status is still the primary concern. We aimed to study the prevalence of, and factors associated with, underweight and overweight/obesity in the European paediatric RRT population. Moreover, we assessed the evolution(More)
OBJECTIVE To analyze the outcome of neonatal pelvic ectasia (PE) and the association between this entity and vesicoureteral reflux and/or other urinary tract abnormalities. PATIENTS AND METHODS We performed a retrospective study of 255 children (205 boys, 50 girls) with an ultrasonographic diagnosis of PE in the first month of life. The initial(More)
We report a case of pyroglutamic acidemia probably related to acetaminophen administration. A 16-month boy recovering from hemolytic uremic syndrome abruptly developed unexplained high anion gap metabolic acidosis requiring hemodialysis. Septic shock, lactic acidosis and salicylate intoxication were ruled out. Betahydroxybutyrate and acetoacetate levels(More)
OBJECTIVE Renal transplantation improves many bone abnormalities inherent to chronic renal insufficiency, but also introduces new deleterious factors, especially those related to immunosuppressive drugs. We have studied the bone mineral content of 40 pediatric renal transplant recipients; moreover, we have analyzed its possible relationships with(More)
The appearance of the K/DOQI guidelines in 2002 on the definition, evaluation and staging of chronic kidney disease (CKD) have led to a major change in how to assess renal function in adults and children. These guidelines, recently updated, recommended that the study of renal function is based, not only on measuring the serum creatinine concentration, but(More)
The outcome of renal transplantation was examined in 17 pediatric patients, whose primary renal disease was uropathy. The results indicate that the outcome of renal transplantation in patients with posterior urethral valves, reflux nephropathy, neurogenic bladder or bilateral ureterocele is similar to that the other transplant recipients. Urologic(More)
This prospective study examines 42 children in the first year after renal transplantation. They all received intravenous ganciclovir prophylaxis for cytomegalovirus in the immediate post-transplant period. Quantitative antigenemia (pp68) determinations and blood, urine and throat cultures were done on a scheduled basis to detect cytomegalovirus. Infection(More)
Weigh and age are risk factors of graft failure. The aim of the study is to review the characteristics and the outcome of cadaver renal transplant in children weighing less than 11 Kg. From 1985 to 1999 10 cadaver renal transplant were performed in 10 children (7 boys and 3 girls). Primary renal disease were renal dysplasia(3), posterior urethral valves(5)(More)
Bilateral nephrectomy prior to transplantation is indicated in some patients with end-stage renal disease. The indications for bilateral nephrectomy include persistent heavy proteinuria, refractory hypertension, and urinary tract infections. We report an eight-month-old baby with male pseudohermaphroditism and renal failure secondary to diffuse mesangial(More)