There are studies that allow us to understand specific aspects related to COVID-19, but few studies have evaluated the population implications of it. Objectives: To study the relationship between case fatality rate and mortality with sociodemographic, economic and health variables during the first 90 day of the pandemic in 60 countries across four continents. Methods: A cross-sectional study was carried-out; cases were made up of 60 countries selected according to the magnitude of their affectation by Covid 19. Mortality and lethality were stratified and contrasted with the variables of the selected countries by means of comparison of means. Results: A strong correlation was found between mortality and lethality (r = 0.70). The day the disease began in a country and its growth in infected showed differences between countries: those with better economic indicators and human development in...

Objective: To study changes in body water, fat and lean body mass in healthy and sick persons (20-80 years of age) by glomerular filtration rate (GFR). Methods: A descriptive study was conducted among 198 subjects (healthy, with chronic renal disease without azotemia and with several stages of chronic renal disease by sex) using the following categories: Category 1 (GFR >140 ml/min/1.73 m2SC); Category 2 (GFR 90-140); Category 3 (GFR 60-89); Category 4 (GFR 30-59); Category 5 (GFR<30) and Category 6 (dialysis). Body weight, height, body water, body fat and lean body mass were measured using bioimpedance. Creatinine clearance (GFR), urea clearance, sodium and potassium were measured in 24-hour urine collection. ANOVA and eta square were used to contrast variables according to the proposed categories. GFR and lean body mass were correlated using bivariate regression and the rest of t...

Objective: To determine the correlation and agreement between the most frequently used formulas estimate the glomerular filtration rate (GFR) and the measured Creatinine Clearance (CrCl), in a Peruvian population. Methods: Study of correlation and agreement in a population with different stages of renal function. 175 patients were included, grouped by CrCl: Group 1: higher than 140, Group 2: between 140 and 90, Group 3: Between 90 and 60, Group 4: less than 60 ml/min/1,73 m2 . Height and weight were measured to calculate body mass index (BMI). Obese patients (BMI>29) were excluded. Using a 24-hour urine collection and a serum creatinine sample, creatinine clearance was measured (normalized for 1.73 m2  of body surface). Formulas considered for analysis were: Cockroft and Gault,MDRD, CKD-EPI and a Peruvian formula proposed by Vásquez. Correlation was analyzed by Pearson coefficie...

Antecedente: El deterioro cognitivo es un problema de salud pública presente en diversas patologías como en la enfermedad renal crónica (ERC), siendo un fenómeno frecuente y subdiagnosticado en esta población, con una alta prevalencia en los pacientes en hemodiálisis. Objetivo: Determinar la frecuencia y nivel del deterioro cognitivo y su relación con la calidad de vida en pacientes con enfermedad renal crónica en hemodiálisis en un hospital de Lima. Material y métodos: Estudio descriptivo de corte transversal realizado en las unidades de hemodiálisis del Hospital Cayetano Heredia. Participaron 78 pacientes con el diagnóstico de ERC terminal en hemodiálisis a quienes se les aplicó el Mini Mental State of Examination (MMSE) test y la escala Karnofsky. Resultados: La mayoría de los participantes fueron varones (60.26%), con una edad media de 43.69 años. El puntaje promedio ...