Early outcomes of peritoneal dialysis in a middle-income country: A retrospective cohort study of a large dialysis network in Colombia.

Background: The first year of dialysis is critical given the significant risk for complications following dialysis initiation. We analysed complications during the first year among incident peritoneal dialysis (PD) patients.

Methods: This retrospective cohort study comprised adult kidney failure patients starting PD in Baxter Renal Care Services in Colombia, receiving their first PD catheter between 1 January 2017 and 31 December 2020 and were followed up for up to 1 year.

Performance of Advanced Practice Providers compared with that of Physicians in Ultrasound-Guided Fine-Needle Aspiration of Thyroid Nodules and Superficial Neck Masses.

Advanced practice providers (APPs) perform ultrasound (US)-guided fine-needle aspiration (FNA) procedures for superficial neck lesions after appropriate training in some interventional radiology practices. This allows physicians additional time to be involved in more complex procedures. This report compared the performance between physicians and APPs.

Chronic Kidney Disease Progression and Transition Probabilities in a Large Preventive Cohort in Colombia.

Background: Variability in chronic kidney disease (CKD) progression is a well-known phenomenon that underlines the importance of characterizing the said outcome in specific populations. Our objectives were to evaluate changes in the estimated glomerular filtration rate (eGFR) over time and determine the frequency of dialysis admission and factors associated with this outcome, to estimate the rate of program's loss-to-follow-up and the probability of transition between CKD stages over time.

Methods: The study type was an observational analytic retrospective cohort in patients treated in a CKD prevention program in Bogota, Colombia, between January 1, 2009, and December 31, 2013, with follow-up until December 31, 2018.

Modelling biological invasions: species traits, species interactions, and habitat heterogeneity.

In this paper we explore the integration of different factors to understand, predict and control ecological invasions, through a general cellular automaton model especially developed. The model includes life history traits of several species in a modular structure interacting multiple cellular automata. We performed simulations using field values corresponding to the exotic Gleditsia triacanthos and native co-dominant trees in a montane area.