Pathogens associated with hemodialysis catheter infections in patients with chronic kidney disease treated at the ’nephrology and dialysis’ clinic in querétaro; january 2022 - june 2023

Abstract

In Mexico, the number of patients with kidney disease is increasing due to the fact that chronic degenerative diseases such as arterial hypertension and diabetes mellitus are common. In the long term, and when not adequately controlled, they condition the onset of Chronic Kidney Disease (CKD). End-stage CKD requires renal replacement therapy (RRT) either in peritoneal dialysis (PD) or hemodialysis (HD). Central venous catheter (CVC) placement is necessary for RRT with HD as it allows rapid access to the bloodstream. The main complication and cause of morbidity and mortality documented in HD patients is bacteremia (CRB). The objective of the present study was to review blood culture results in CVC for HD documented in the internal registry created by CODECIN (Committee for the Detection and Control of Nosocomial Infections) in a clinic in Querétaro. The methodology was analytical, cross-sectional, retrolective, and descriptive. A total of 337 catheters were analyzed and 207 blood cultures were obtained with suspected CRB associated with tunneled (permanent) and temporary catheters. The predominant microorganisms isolated were Gram positive: S. aureus 34.8% (72), S. epidermidis 17.9% (37), S. lugdunensis 2.9% (6). The type of catheter most affected by CRB (according to site of placement) was the right jugular temporal catheter with a total of 49.3% (102), the most affected sex was male, the month with the highest incidence was June 2023, and the most frequent age was 49-58 years.