ABSTRACT
El propósito de este estudio fue evaluar la prevalencia de litiasis renal en la población de la Ciudad de Buenos Aires. Se obtuvo una muestra probabilística de viviendas, y en cada vivienda se encuestó a todos los habitantes de ambos sexos y todas las edades, por medio de un Formulario Epidemiológico estructurado anónimo autoadministrado, averiguando sexo, edad, y si tenían o habían tenido antes una evidencia de padecer litiasis renal; para afirmar la existencia de litiasis se incluyeron otros datos confirmatorios. De 1086 encuestados 43 contestaron tener o haber tenido cálculos, todos ellos por haber recibido diagnóstico médico y además algunos por ver el cálculo al ser eliminado. Hubo diferencia en la tasa de prevalencia según sexo, con valores mayores en los varones, pero la diferencia no fue estadísticamente significativa. No se encontraron personas con litiasis en edades inferiores a los 20 años.
Subject(s)
Humans , Female , Male , Urinary Calculi/epidemiology , Directory , Urban Population/statistics & numerical data , PrevalenceABSTRACT
El propósito de este estudio fue evaluar la prevalencia de litiasis renal en la población de la Ciudad de Buenos Aires. Se obtuvo una muestra probabilística de viviendas, y en cada vivienda se encuestó a todos los habitantes de ambos sexos y todas las edades, por medio de un Formulario Epidemiológico estructurado anónimo autoadministrado, averiguando sexo, edad, y si tenían o habían tenido antes una evidencia de padecer litiasis renal; para afirmar la existencia de litiasis se incluyeron otros datos confirmatorios. De 1086 encuestados 43 contestaron tener o haber tenido cálculos, todos ellos por haber recibido diagnóstico médico y además algunos por ver el cálculo al ser eliminado. Hubo diferencia en la tasa de prevalencia según sexo, con valores mayores en los varones, pero la diferencia no fue estadísticamente significativa. No se encontraron personas con litiasis en edades inferiores a los 20 años. (AU)
Subject(s)
Humans , Female , Male , Urinary Calculi/epidemiology , Prevalence , Urban Population/statistics & numerical data , RecordsABSTRACT
Bone mineral density was studied in 50 adult patients with renal lithiasis and metabolic diagnosis of idiopathic hypercalciuria. Thirty were premenopausal women and 20 were men under 55 years of age, Bone density at the lumbar spine (LSBD) was 0.940 +/- 0.106 g/cm2 in the hypercalciuric patients compared to 1.112 +/- 0.037 g/cm2 in a cohort of age- and sex-matched controls (p < 0.001). LSBD was independent of age and was negatively correlated with the duration of stone disease (r = -0.52, p < 0.001). Thus we conclude that patients with idiopathic hypercalciuria have a decrease in their LSBD that is probably related to a negative calcium balance sustained over time.
Subject(s)
Bone Density/physiology , Nephrocalcinosis/pathology , Adult , Calcium/metabolism , Female , Humans , Male , Middle Aged , Nephrocalcinosis/metabolism , Spine/metabolism , Spine/pathologyABSTRACT
There are little doubts about the need of studying thoroughly every patient with recurrent renal lithiasis. However, the behavior to be followed after the first renal calculi remains controversial. For that reason, we decided to answer a series of questions after which, we formulate our own criteria: Which is the recurrence rate after the first calculi? Has a patient with recurrent lithiasis, the same metabolic disarrangement as a patient who has his first episode? Is the family history of both kidney stone patients the same? Which is the morbility of both groups? We answered these questions with data drawn from 200 of our patients (100 with first episode and 100 with recurrent lithiasis) and a review of the medical literature. The patients with their first episode of lithiasis correspond to the same population of patients with recurrent episodes, but they are detected at different moments of their stone disease. This was concluded since both groups of patients had the same metabolic disarrangement with predominance of hypercalciuria and alteration in uric acid metabolism. Furthermore, the family history was practically the same in both groups (39% in first episode, 41% in recurrent lithiasis) and so was the morbility. Therefore, we propose the following conduct: 1. every patient with renal lithiasis should be studied starting at the first episode, from the urological and metabolic point of view; 2. the initial metabolic studies have to be as extensive as possible in order to aim for specific treatment from the start in order to prevent a recurrence, and in the case of hypercalciuric patients to prevent secondary osteopenia.
Subject(s)
Kidney Calculi/metabolism , Female , Humans , Kidney Calculi/complications , Kidney Calculi/genetics , Kidney Calculi/prevention & control , Male , Recurrence , Time FactorsABSTRACT
There are little doubts about the need of studying thoroughly every patient with recurrent renal lithiasis. However, the behavior to be followed after the first renal calculi remains controversial. For that reason, we decided to answer a series of questions after which, we formulate our own criteria: Which is the recurrence rate after the first calculi? Has a patient with recurrent lithiasis, the same metabolic disarrangement as a patient who has his first episode? Is the family history of both kidney stone patients the same? Which is the morbility of both groups? We answered these questions with data drawn from 200 of our patients (100 with first episode and 100 with recurrent lithiasis) and a review of the medical literature. The patients with their first episode of lithiasis correspond to the same population of patients with recurrent episodes, but they are detected at different moments of their stone disease. This was concluded since both groups of patients had the same metabolic disarrangement with predominance of hypercalciuria and alteration in uric acid metabolism. Furthermore, the family history was practically the same in both groups (39
in first episode, 41
in recurrent lithiasis) and so was the morbility. Therefore, we propose the following conduct: 1. every patient with renal lithiasis should be studied starting at the first episode, from the urological and metabolic point of view; 2. the initial metabolic studies have to be as extensive as possible in order to aim for specific treatment from the start in order to prevent a recurrence, and in the case of hypercalciuric patients to prevent secondary osteopenia.
