Tratamiento con hidroclorotiazida y alendronato en pacientes con litiasis y pérdida de densidad mineral ósea. Evolución de la calciuria y metabolismo óseo en el tratamiento médico / Treatment with hydrochlorothiazide and alendronate in patients with stones and bone mineral density loss. Evolution of bone metabolism and calciuria with medical treatment

OBJETIVO: El tratamiento de la litiasis cálcica está basado en dieta y medidas farmacológicas como el uso de tiazidas y otros fármacos. El objetivo de este estudio es valorar el efecto de hidroclorotiazida y alendronato sobre la calciuria y densidad mineral ósea en pacientes con litiasis cálcica. MÉTODOS: Estudio observacional prospectivo que incluye 77 pacientes con litiasis cálcica recidivante divididos en 2 Grupos según tratamiento recibido. Grupo 1: 36 pacientes tratados con alendronato 70 mg/semanal; Grupo 2: 41 pacientes tratados con hidroclorotiazida 50 mg/día. Todos los pacientes reciben recomendaciones de dieta e ingesta de líquidos. Se estudia y analiza entre otras variables la densidad mineral ósea, marcadores de remodelado óseo y calciuria antes y después de 2 años de tratamiento. Estudio estadístico con programa SPSS 17.0, significación estadística p < 0.05. RESULTADOS: No existen diferencias estadísticamente significativas en la distribución por sexo ni en la edad de los pacientes entre Grupos. En el Grupo 1 se observa descenso estadísticamente significativo en el b-crosslaps y mejoría en la densidad mineral ósea, junto con disminución de la calciuria tras 2 años de tratamiento. En el Grupo 2 se aprecia disminución estadísticamente significativa de calciuria y calcio/creatinina en ayunas, además de mejoría en la densidad mineral ósea tras 2 años de tratamiento médico. En el Grupo 1 existe una mejoría más evidente y significativa de la densidad mineral ósea respecto al 2, así como descenso del b-crosslaps. Sin embargo, en el Grupo 2 el descenso de la calciuria y calcio/creatinina es más significativo que en el Grupo 1. CONCLUSION: El tratamiento con hidroclorotiazida además de descender la calciuria produce una mejoría de la densidad mineral ósea, aunque no en el mismo rango que el tratamiento con alendronato

OBJECTIVES: Treatment of calcium stones is based on diet and pharmacological measures such as the use of thiazides and other drugs. The aim of this study is to assess the effect of alendronate on hydrochlorothiazide on urinary calcium and bone mineral density in patients with calcium stones. METHODS: Prospective observational study involving 77 patients with relapsing calcium stones divided into 2 groups according to treatment received. Group 1: 36 patients treated with alendronate 70 mg/week; Group 2: 41 patients treated with hydrochlorothiazide 50 mg/day. All patients receive diet recommendations and fluid intake. Studied and analyzed among other variables were bone mineral density, bone turnover markers and calciuria before and after 2 years of treatment. Statistical study with SPSS 17.0, statistical significance p < 0.05. RESULTS: No statistically significant differences in the distribution by sex or age of the patients between groups. In group 1 statistically a significant decrease was observed in the b-crosslaps and improvement in bone mineral density, along with decreased urinary calcium after 2 years of treatment. In Group 2 statistically significant decrease in urinary calcium and fasting calcium/creatinine was seen, along with improvement in bone mineral density after 2 years of treatment. In group 1, there is a more obvious and significant improvement in bone mineral density compared to 2 and b-crosslaps decrease. However, in group 2 the decrease in urinary calcium and calcium/creatinine was more significant than in group 1. CONCLUSION: Treatment with thiazide decrease calciuria and produces an improvement in bone mineral density, although not in the same range as treatment with alendronate

Urine Calcium and Bone Mineral Density in Calcium Stone-Forming Patients Treated with Alendronate and Hydrochlorothiazide.

INTRODUCTION: The objective was to evaluate the effect of hydrochlorothiazide and alendronate on urine calcium and bone mineral density in calcium stone-forming patients. MATERIAL AND METHODS: A prospective, non-randomized, non-observational comparative study was performed; this study included 111 patients with recurrent calcium stones, divided into 3 groups according to the treatment received. Group 1: 36 patients were treated with alendronate, 70 mg/week; Group 2: 34 patients were treated with alendronate, 70 mg/week + hydrochlorothiazide, 50 mg/day; Group 3: 41 patients were treated with hydrochlorothiazide, 50 mg/day. All patients received recommendations on diet and fluid intake. Other variables of bone mineral density were studied and analyzed, including bone remodeling markers and urinary calcium before and after 2 years of treatment. The statistical analysis was performed using the SPSS 17.0 program, with a statistical significance of p < 0.05. RESULTS: After 2 years of treatment, a significant difference was observed in the ß-crosslaps and a bone mineral density improvement in Group 1, along with a decrease in urinary calcium. In Group 3, a statistically significant difference was found in urinary calcium and fasting calcium/creatinine ratio, as well as an improvement in bone mineral density after 2 years of medical treatment. In Group 2 patients treated with the combination, there was an improvement in bone mineral density and a decrease in the ß-crosslaps marker similar to patients in Group 1, and a decrease in urinary calcium similar to those in Group 3. CONCLUSION: Combined alendronate + hydrochlorothiazide treatment offers the best results along with the improvement in bone mineral density and decrease in urine calcium in patients with recurrent calcium stones.

Effects of aminobisphosphonates and thiazides in patients with osteopenia/osteoporosis, hypercalciuria, and recurring renal calcium lithiasis.

OBJECTIVE: To analyze the effects of aminobisphosphonates and thiazides on renal lithogenic activity and bone mineral density in patients with recurring renal calcium lithiasis. MATERIALS AND METHODS: A prospective cohort study with 3 years of clinical follow-up data was performed. The study included 2 groups of patients with recurring calcium lithiasis, hypercalciuria, and bone mineral density loss. Group 1 included 35 patients who underwent treatment with 70 mg/wk alendronate. Group 2 included 35 patients who underwent treatment with 50 mg/d hydrochlothiazide and 70 mg/wk alendronate. Biochemical analysis was performed at baseline, 6 months, and 2 years, bone densitometry at baseline and 2 years, and clinical follow-up during the 3 years of treatment. The biochemical variables from the blood and urine samples, recurrent lithiasis, and bone mineral density were analyzed. RESULTS: Age, sex, baseline biochemical markers, and bone density showed no differences between the 2 treatment groups at the onset of treatment. After 2 years of treatment, group 1 showed a significant decrease in bone turnover markers and calciuria and significant improvement in bone mineral density. After 2 years of treatment, group 2 showed a decrease in calciuria and bone markers. At 2 years, the decrease in calciuria and the improvement in bone mineral density were greater in group 2 than in group 1, and the difference was statistically significant. CONCLUSION: Aminobisphosphonates improve bone mineral density and slow lithogenic activity; however, administration of aminobisphosphonates in association with thiazides produced the same clinical effects and also reduced calciuria and improved bone mineral density.