Patency and Complications of Hemodialysis Arteriovenous Fistulas in a Low-Income Setting: A Cross-Sectional Analysis from Bogotá - Protocol and Data

Description

This dataset contains anonymized clinical, demographic, laboratory, and surgical data from 204 adult patients with chronic kidney disease undergoing hemodialysis who received an arteriovenous fistula (AVF) for vascular access at the Renal Unit of Hospital Occidente de Kennedy, a tertiary public care hospital in Bogotá, Colombia, between June 2019 and July 2024. The data were collected retrospectively from institutional electronic and physical medical records as part of a descriptive cross-sectional study evaluating AVF patency and complications in a low-income population. Variables include patient sociodemographic characteristics (age, sex, socioeconomic status, educational level), comorbidities, laboratory values, dialysis history, previous vascular access use, AVF anatomical and surgical characteristics, pharmacological treatment, and clinical outcomes such as one-year fistula patency and access-related complications (including thrombosis, failure to mature, infection, distal ischemia, and aneurysm formation). This dataset was created to support the analysis of factors associated with AVF durability and complications in resource-limited settings. It may be useful for researchers studying vascular access outcomes, hemodialysis care, chronic kidney disease management, health disparities, and surgical outcomes in low- and middle-income countries.

Steps to reproduce

Data were collected retrospectively from electronic and physical medical records, as well as the institutional renal unit database of Hospital Occidente de Kennedy (Bogotá, Colombia), using a standardized data extraction form developed for this study. Eligible patients included adults (≥18 years) with chronic kidney disease undergoing hemodialysis who received an arteriovenous fistula between June 2019 and July 2024. After data collection, records were anonymized and reviewed for completeness and consistency. Cases with incomplete information or inability to verify fistula status at one year were excluded. The cleaned dataset was curated and organized in Microsoft Excel prior to statistical analysis. Descriptive and exploratory statistical analyses were performed using R statistical software (R Foundation for Statistical Computing, Vienna, Austria). Quantitative variables were summarized using means and standard deviations or medians and interquartile ranges, depending on data distribution. Qualitative variables were described using absolute and relative frequencies. Exploratory bivariate analyses were conducted to assess associations between clinical and surgical variables with fistula patency and complications, using Chi-square or Fisher’s exact tests for categorical variables and Student’s t-test or non-parametric tests for continuous variables, as appropriate. Statistical significance was defined as a p-value < 0.05. This workflow allows reproducibility of the descriptive analyses and supports future secondary analyses of vascular access outcomes in similar low-resource clinical settings.

Institutions

• Universidad El Bosque

  Bogota D.C., Bogotá
• Universidad del Rosario

  Bogota D.C., Bogotá

Categories

Licence