Impact of different urinary tract infection phenotypes within the first year post-transplant on renal allograft outcomes.

Brune, Jakob E; Dickenmann, Michael; Wehmeier, Caroline; Sidler, Daniel; Walti, Laura; Golshayan, Dela; Manuel, Oriol; Hadaya, Karine; Neofytos, Dionysios; Schnyder, Aurelia; Boggian, Katia; Müller, Thomas; Schachtner, Thomas; Khanna, Nina; Schaub, Stefan (2022). Impact of different urinary tract infection phenotypes within the first year post-transplant on renal allograft outcomes. American journal of transplantation, 22(7), pp. 1823-1833. Wiley 10.1111/ajt.17026

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In this study we investigated the clinical impact of different urinary tract infection (UTI) phenotypes occurring within the first year after renal transplantation. The population included 2368 transplantations having 2363 UTI events. Patients were categorized into four groups based on their compiled UTI events observed within the first year after transplantation: (i) no colonization or UTI [n=1404; 59%], (ii) colonization only [n=353; 15%], (iii) occasional UTI with 1-2 episodes [n=456; 19%], and (iv) recurrent UTI with ≥3 episodes [n=155; 7%]. One-year mortality and graft loss rate were not different among the four groups, but patients with recurrent UTI had a 7-10ml/min lower eGFR at one year (44ml/min vs 54, 53 and 51ml/min; p<0.001). UTI phenotypes had no impact on long-term patient survival (p=0.33). However, patients with recurrent UTI demonstrated a 10% lower long-term death-censored allograft survival (p<0.001). Furthermore, recurrent UTI was a strong and independent risk factor for reduced death-censored allograft survival in a multivariable analysis (HR 4.41, 95% CI 2.53-7.68, p<0.001). We conclude that colonization and occasional UTI have no impact on pertinent outcomes, but recurrent UTI are associated with lower one-year eGFR and lower long-term death-censored allograft survival. Better strategies to prevent and treat recurrent UTI are needed.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Nephrology and Hypertension
04 Faculty of Medicine > Department of Haematology, Oncology, Infectious Diseases, Laboratory Medicine and Hospital Pharmacy (DOLS) > Clinic of Infectiology

UniBE Contributor:

Sidler, Daniel (A), Walti, Laura Naëmi


600 Technology > 610 Medicine & health








Pubmed Import

Date Deposited:

15 Mar 2022 15:20

Last Modified:

29 Mar 2023 23:38

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

Allograft loss Patient survival Renal transplantation Urinary tract infection




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