Effects of Nutritional Protocol Changes on Hemodialysis Adequacy and Patient Health During the COVID-19 Pandemic

Background: During the COVID-19 pandemic, strict feeding restrictions were implemented in many dialysis centers to minimize transmission between patients. This study aims to evaluate the effects of these feeding restrictions on dry weight, intradialytic hypotension (IDH), and dialysis adequacy in hemodialysis patients. Material/Methods: In this retrospective single-center study involving 76 hemodialysis patients, data from 2 consecutive 6-month periods were analyzed: the first before the COVID-19 pandemic when intradialytic nutrition was supported, and the second during the pandemic when intradialytic nutrition was restricted. Data from the patients' monthly visits during both periods were evaluated, averages were recorded, and a comparison was made between the Results: The frequency of IDH was significantly higher during the feeding period compared with the no-feeding period (1.4 +/- 1.2/month vs 0.81 +/- 0.86/month, P=0.01). Conversely, the urea reduction ratio was greater in the no-feeding period [72.5% (69-76) vs 71% (68-75), P=0.01], as were the single-pool Kt/V values (1.59 +/- 0.23 vs 1.52 +/- 0.26, P=0.004) and ultrafiltration rates (mL/h/kg) (11.4 +/- 3.0 vs 10.4 +/- 3.2, P=0.01). However, the dry weight of the patients was similar in the 2 periods (65.4 +/- 13.7 kg vs 65.7 +/- 14.2 kg, P=0.62). Conclusions: During the COVID-19 pandemic, mandatory feeding restrictions for hemodialysis patients, aimed at reducing transmission, were linked to a decrease in IDH frequency and improved dialysis adequacy. However, no significant reduction in patients' dry weights was observed.