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A very high prevalence of hepatitis C virus infection among patients undergoing hemodialysis in Kosovo: a nationwide study

Authors
  • Jakupi, Xhevat1
  • Mlakar, Jana2
  • Lunar, Maja M.2
  • Seme, Katja2
  • Rudhani, Ibrahim3
  • Raka, Lul4
  • Vince, Adriana5
  • Poljak, Mario2
  • 1 Kosovo National Institute of Public Health, Department of Microbiology, Rrethi i Spitalit, p.n, Prishtina, 10000, Kosovo , Prishtina (Kosovo)
  • 2 University of Ljubljana, Institute of Microbiology and Immunology, Faculty of Medicine, Zaloška 4, Ljubljana, 1000, Slovenia , Ljubljana (Slovenia)
  • 3 Clinic for Nephrology, University Medical Center of Kosovo, Bulevardi i Dëshmorëve, p.n, Prishtina, 10000, Kosovo , Prishtina (Kosovo)
  • 4 Faculty of Medicine, Hasan Prishtina University of Prishtina, Bulevardi i Dëshmorëve, p.n, Prishtina, 10000, Kosovo , Prishtina (Kosovo)
  • 5 Dr Fran Mihaljević University Hospital for Infectious Diseases, Mirogojska 8, Zagreb, 10000, Croatia , Zagreb (Croatia)
Type
Published Article
Journal
BMC Nephrology
Publisher
Springer (Biomed Central Ltd.)
Publication Date
Nov 03, 2018
Volume
19
Issue
1
Identifiers
DOI: 10.1186/s12882-018-1100-5
Source
Springer Nature
Keywords
License
Green

Abstract

BackgroundPatients on hemodialysis are at high risk for hepatitis C virus (HCV) infection if measures for effective control of HCV infection in the hemodialysis environment are not implemented. Whereas in developed countries isolated small-scale outbreaks of HCV in hemodialysis units are occasionally reported, HCV transmission in the hemodialysis environment still represents a substantial problem in low-resource countries. This study systematically assessed the prevalence of HCV infection among all patients at all hemodialysis centers in Kosovo, determined the HCV genotype distribution, and reviewed the main risk factors associated with HCV infection in this group of patients.MethodsFrom January to March 2013, blood samples from all patients undergoing hemodialysis at all seven hemodialysis centers in Kosovo were collected. The samples were screened for the presence of anti-HCV antibodies, and seropositive samples were also tested for HCV RNA. Genotyping was performed by sequencing the core region of the HCV genome. Subsequently, face-to-face interviews were conducted with consented patients attending hemodialysis in December 2015 and with the management of all hemodialysis centers in Kosovo.ResultsThe overall seroprevalence of HCV infection among hemodialysis patients in Kosovo was 53.0% (354/668), ranging from 22.3 to 91.1% at different centers. HCV RNA was detected in 323/354 (91.2%) seropositive patients. The most frequent HCV genotype was genotype 1a (62.2%), followed by genotypes 4d (33.1%), 1b (4.0%), and 2c (0.7%). The duration of hemodialysis and receiving dialysis at more than one center were identified as independent significant predictors of anti-HCV positivity. Shortage of staff, lack of resources, and inconsistent use of hygienic precautions and/or isolation strategies were observed.ConclusionsThe prevalence of HCV infection among hemodialysis patients in Kosovo is extremely high. The relatively low prevalence of HCV infection in the general population, predominance of two otherwise rare HCV genotypes among hemodialysis patients, and longer history of hemodialysis as a predictor of HCV infection all indicate nosocomial transmission due to inappropriate infection control practices as the main transmission route.

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