Background Cognitive deterioration decreases quality of life, self-care and adherence to treatment, increasing mortality risk. There is scarce information of cognitive impairment in peritoneal dialysis, and data are controversial. Objective To determine the frequency and associated factors of cognitive impairment in patients on automated peritoneal dialysis (APD). Methods Cross-sectional study; 71 patients on APD underwent clinical, biochemical and cognitive function evaluation by means of the Mini Mental State Examination (MMSE) and the Montreal Cognitive Assessment (MoCA). Cognitive function was also evaluated in healthy controls. Results Mean age was 42 ± 16 years, 79% were men and dialysis vintage was 17 (7-32) months. In APD patients, cognitive impairment was present in 7% (mild deterioration) and 68% according to the MMSE and MoCA, respectively, and in 4% and 37% in the healthy controls. Patients with cognitive impairment (according to MoCA) were older, with lower educational degree, had more frequently diabetes, and higher serum glucose, as well as lower serum creatinine, phosphorus and sodium concentrations than patients with normal cognitive function. In multiple linear regression analysis, predictors for the MoCA score (R2 0.63, p = 0.002) were schooling [B = 0.54 (0.20 to 0.89), p = 0.003], age [B=-0.11 (-0.21 to -0.01), p = 0.04], serum sodium [B = 0.58 (0.05 to 1.11), p = 0.03] and creatinine concentrations [B = 3.9 (0.03 to 0.83), p = 0.03]. Conclusion In this sample of APD patients with mean age in the early 40 s, the prevalence of cognitive impairment by MoCA test was 65%, and it was associated to older age, lower educational level and lower serum concentrations of sodium and creatinine.
Background & aims: Mexico has one of the highest mortality rates by COVID-19 worldwide. This may be partially explained by the high prevalence of overweight/obesity found in general population; however, there is limited information in this regard. Furthermore, acute kidney injury (AKI) and need for renal replacement therapy (RRT) associated to obesity in patients with COVID-19 are still topics of discussion. Aim: To explore the association of obesity, particularly morbid obesity, with mortality and kidney outcomes in a Mexican population of hospitalized patients with COVID-19. Methods: Retrospective cohort study of 773 patients with COVID-19 hospitalized in a tertiary-care teaching hospital in the Mexican state of Jalisco. Baseline body mass index was classified as: normal weight (18.5e24.9 kg/m 2 ), overweight (25e29.9 kg/m 2 ), obesity (30e39.9 kg/m 2 ), and morbid obesity (!40 kg/m 2 ). AKI was diagnosed according to KDIGO clinical practice guidelines. Results: At baseline, 35% of patients had overweight, 39% obesity and 8% morbid obesity. Patients with obesity were younger, more frequently women and with hypertension than normal weight and overweight patients. Frequency of complications in the univariate analysis were not significantly associated to obesity, however in the multivariate analysis (after adjusting for baseline clinical and biochemical differences), morbid obesity was significantly associated to an increased risk of AKI [OR ¼ 2.70 (1.01 e7.26), p ¼ 0.05], RRT [OR ¼ 14.4 (1.46e42), p ¼ 0.02], and mortality [OR ¼ 3.54 (1.46e8.55), p ¼ 0.005]. Conclusions: Almost half of the sample had obesity and morbid obesity. Morbid obesity was significantly associated to an increased risk of AKI, RRT and mortality in hospitalized patients with COVID-19.
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