[Effect of two crystalloid fluids schemes on glucose serum levels in patients with severe preeclampsia]. / Líquidos cristaloides sobre la glucemia en preeclampsia severa.

BACKGROUND: treatment of severe preeclampsia (SP) includes administration of crystalloid solutions to expand plasma circulating volume. Our objective was to compare the effects of two schemes of crystalloid solutions on glycemia in patients with SP. METHODS: cross-sectional study with two groups of patients: group A (123 patients) received a 10 % glucose solution and group B (146 patients) received Ringer lactate solution. We compared glycemia, endogenous creatinine clearance (ECrCl), frequency of urinary tract infection (UTI) and length of hospital stay. Student t-test and Pearson correlation coefficient were used. RESULTS: final glycemia of group A was higher than group B (168.27 ± 70.85 adversus 94.20 ± 26.63, p = 0.009). No differences were shown in ECrCl (group A 99.26 ± 30.67 adversus group B, p = 0.14) or in UTI [group A 21.95 % (27 cases) adversus group B 18.48 % (27 cases) (p = 0.43)]. Length of hospital stay was different (group A 2.2 ± 1.79 adversus group B 2.67 ± 1.78 days, p = 0.03). CONCLUSIONS: patients receiving a 10 % glucose solution presented significant hyperglycemia but not in the group receiving Ringer lactate solution.

Longitudinal study of kidney water management in patients diagnosed with idiopathic hypercalciuria in childhood. / Estudio longitudinal del manejo renal del agua en pacientes diagnosticados de hipercalciuria idiopática en la infancia.

INTRODUCTION: There is much debate about whether idiopathic hypercalciuria (IH) affects kidney water management. For the first time in the literature, we carried out a longitudinal study of kidney water management (KWM) in patients diagnosed with IH in childhood and followed-up until adulthood (mean follow-up 17.7±1.4 years). METHODS: Twenty-nine patients (7 M, 22 F) over the age of 24 years (mean 28.2±2.9 years, range: 24.1-35.9) who were diagnosed with IH in childhood (mean 7.6±3.2 years, range: 1-14) were included. Maximum urine osmolality (UO) and/or urine volume adjusted for 100ml of glomerular filtration rate (V/GFR) in both age groups (paediatric and adult) were determined. Moreover, whenever possible, in both age groups plasma creatinine levels, plasma sodium levels, uric acid levels, the citrate/creatinine ratio and the calcium/citrate ratio were recorded and a renal and bladder ultrasound was performed. RESULTS: In the paediatric age group, KWM was altered in 9/29 cases (31%) (4 with reduced maximum UO and 5 with elevated V/GFR). In adulthood, KWM was found to be affected in 7/29 cases (24.1%) (6 with reduced UO and one with elevated V/GFR). Compared to the paediatric age group, adult patients had lower V/GFR, calcium/creatinine and citrate/creatinine values, as well as higher plasma creatinine, uric acid and calcium/citrate. There were no differences in the maximum UO in both age groups. However, UO in adulthood was significantly lower in subjects who had renal colic compared to those who did not (P=.04). CONCLUSIONS: KWM was affected in approximately one third of patients with IH, which persisted 20 years after diagnosis. We think that these results may be due to adherence to the recommended protective diet and to the pharmacological treatment administered at the diagnosis of IH during childhood.