[The importance of comorbidity in nephrologists' assessment of acute renal failure]. / La importancia de la comorbilidad en el fracaso renal agudo valorado por los nefrólogos.

AIMS: To study the features of acute renal failure (ARF) in our hospital and to determine prognosis and mortality associated factors. METHODS: Retrospective study of ARF episodes during a two years period (2005-2007). ARF was considered when a sudden rise in serum creatinine concentration was more than 0,5 mg/dl in patients with normal renal function and more than 1 mg/dl in patients with previous mild to moderate chronic renal failure. We analyzed epidemiologic, clinical, laboratories results, therapeutics and prognosis factors. RESULTS: Two hundred and one patients were evaluated (62,7% males; Age= 67,35 16,38 years (63,68%>65 years); Comorbility Index of Charlson 3,49 2,43). 115 episodes presented in patients with previous renal failure. ARF was pre-renal in 52,7%, renal in 34,8% and post-renal in 8,5%. 35,8% of ARF patients had oliguria or anuria. The mean duration of ARF/hospitalization was 22,47 days (22,47 21,83). The percentage of resolved ARF was 70,1%. Mortality was 30,8%. The univariated analysis showed comorbility Index of Charlson, oliguria, low serum albumin and cholesterol, and anemia were significantly associated with mortality (p<0,05). The lineal regression analysis found three factors associated to the mortality rate: Comorbility Index of Charlson, oliguria and low serum cholesterol. Mortality predictive model was carried out. CONCLUSION: Highest basal comorbility of patients, oliguria and malnutrition-inflammation dates are princess prognosis and mortality factors in ARF today A new approach is needed in ARF because this new type/class of population.

La importancia de la comorbilidad en el fracaso renal agudo valorado por los nefrólogos / No disponible

Objetivo: analizar las características del fracaso renal agudo(FRA) en nuestro centro y determinar su influencia en el pronóstico del mismo y en la mortalidad. Material y métodos: estudio retrospectivo de los episodios de FRA valorados por nuestro Servicio durante un período de dos años (2005-2007). Los criterios de inclusión fueron: elevación de la creatinina sérica0,5 mg/dl en pacientes con función renal previa normal y de 1 mg/dl en aquéllos con insuficiencia renal crónica previa. Se registraron factores epidemiológicos, clínicos, analíticos, terapéuticos y pronósticos. Resultados: valoramos 201 episodios de FRA. El 62,7% 16,38 (63,68% ±) eran varones. La edad media fue de 67,35 >65 años). El índice de comorbilidad de Charlson (ICCH) mostraba unos valores de 3,49 ± 2,43. Ciento quince pacientes tenían IRC previa al ingreso. El 52,7% fueron prerrenales, el 34,8% parenquimatosos y el 8,5% obstructivos. El 35,8%cursaron con oligoanuria. El tiempo medio de ingreso fue de22,47 ± 21,3 días. El 70,1% de los pacientes recuperaron función renal al alta. La mortalidad fue del 30,8%. En el estudio univariante se asociaron significativamente con la mortalidad(p <0,05): ICCH, oliguria, hipoalbuminemia, niveles bajos de colesterol y anemia. En el análisis de regresión lineal múltiple, los factores que mejor la explicaban fueron: ICCH, oliguria y niveles bajos de colesterol. Realizamos un modelo predictivo de mortalidad con estos factores. Conclusión: la mayor complejidad clínica basal de los pacientes, el desarrollo de oliguria y la presencia de datos de malnutrición-inflamación aparecen como los principales factores pronósticos y de mortalidad en el FRA que valoramos los nefrólogos en el momento actual (AU)

Aims: To study the features of acute renal failure (ARF) in our hospital and to determine prognosis and mortality associated factors. Methods: This is a retrospective study analyzing the ARF episodes observed in our center during a two years period (2005-2007). ARF was considered when a sudden rise in serum creatinine concentration was more than0, 5 mg/dl in patients with normal renal function and more than 1 mg/dl in patients with previous mild to moderate chronic renal failure. We analyzed epidemiologic, clinical, laboratories results, therapeutics and prognosis factors. Results: Two hundred and one patients were evaluated (62,7% males; Age= 67,35 ± 16,38 years (63,68% >65 años); Comorbility Index of Charlson was 3,49 ± 2,43). 115 ARF episodes occurred in patients with previous renal failure. ARF was pre-renal in 52, 7%, renal in 34,8% and post-renal in8,5%. 35,8% of ARF patients had oliguria or anuria. The mean duration of ARF/hospitalization was 22,47 days (22,47± 21,83). The percentage of resolved ARF was 70, 1%.Mortality was 30, 8%. The univariate analysis showed that comorbility Index of Charlson, oliguria, low serum albumin, low cholesterol and anemia were significantly associated with mortality (p <0,05). However, only Charlson Index,oliguria and low serum cholesterol were independent predictors of mortality in multivariate analysis. Mortality predictive model was carried out. Conclusion: Highest basal comorbility of patients, oliguria and malnutrition inflamation dates are independent predictors of mortality in patients with acute renal failure (AU)

Peritoitis esclerosante con predominio de estado inflamatorio tras peritonitis fúngica / No disponible

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Hemolytic uremic syndrome in a patient with gastric adenocarcinoma: partial recovery of renal function after gastrectomy.

We report on a patient with gastric adenocarcinoma and severe renal failure caused by hemolytic uremic syndrome with predominantly vascular involvement. Evolution was favorable with partial recovery of renal function after tumor excision and administration of fresh plasma. Although microangiopathic hemolytic anemia is frequently associated with solid tumors, the appearance of a typical hemolytic uremic syndrome with carcinoma is exceptional.