Impact of Medium Cut-Off Dialysis Membranes on Outcomes in COVID-19 Patients With Acute Kidney Injury


AKÇAY Ö. F., Kanik H. K., Kanik A. B., ÇETİN T. E., Yildirim S., YETER H. H., ...Daha Fazla

Therapeutic Apheresis and Dialysis, cilt.30, sa.1, ss.30-38, 2026 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 1
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1111/1744-9987.70088
  • Dergi Adı: Therapeutic Apheresis and Dialysis
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, MEDLINE
  • Sayfa Sayıları: ss.30-38
  • Anahtar Kelimeler: acute kidney injury, COVID-19, dialysis membrane, hemodialysis, mortality
  • Gazi Üniversitesi Adresli: Evet

Özet

Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has led to significant morbidity and mortality worldwide, with acute kidney injury (AKI) emerging as a significant non-pulmonary complication of COVID-19. This study aimed to evaluate the effect of hemodialysis (HD) membrane type on the outcomes of COVID-19 patients with AKI requiring dialysis. Methods: A retrospective analysis was conducted on 82 COVID-19 patients with AKI who required HD between January 2020 and January 2022. Patients were categorized based on the type of dialysis membrane used as medium cut-off (MCO) versus low-flux (LF). Demographic data, clinical characteristics, laboratory findings, and hospital outcomes, including 28-day mortality, were analyzed. Results: The mean age of the study population was 69.7 ± 11.6 years, with 45% being female. The median time to HD initiation was shorter in the LF group (p < 0.001). Although ICU admission rates were similar between the groups, the 28-day mortality rate was significantly lower in the MCO group (p = 0.03). Multivariate analysis identified ICU admission as an independent risk factor for mortality while using MCO membranes, associated with a reduced mortality risk (OR: 0.344, p = 0.03). MCO membrane was significantly associated with a higher 28-day survival rate by Kaplan–Meier curve analysis with log-rank test (56.8% vs. 33.3%, p = 0.001). Conclusions: The findings suggest that using MCO membranes in HD may improve survival outcomes in COVID-19 patients with AKI. Further prospective studies are needed to validate these results and elucidate the potential anti-inflammatory benefits of MCO membranes in this patient population.