Risk factors and clinical relevance of positive urine cultures in cats with subcutaneous ureteral bypass

Julie Deprey , Arnaud Baldinger , Véronique Livet , Margaux Blondel , Mathieu Taroni , Cynthia Lefebvre , Isabelle Goy-Thollot (1) , Pierre Moissonnier (2) , Éric Viguier (2) , Céline Pouzot Pouzot-Névoret (3, 1, 4) , Claude Carozzo (2) , Thibaut Cachon (2)

1 APCSé - Agressions Pulmonaires et Circulatoires dans le Sepsis - UR
2 ICE - Interactions Cellules Environnement - UR
3 VAS - VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement
4 Urgences animaux compagnie SIAMU

Abstract Background The objective of the study was to report the incidence and risk factors associated with positive urine bacterial cultures as well as long-term outcome in cats with subcutaneous ureteral bypass (SUB) devices. Results Medical records of cats that underwent SUB device placement were retrospectively reviewed. Signalment of the cat, laterality of the ureteral obstruction, surgery, anesthesia and hospitalization duration, bacterial culture results and follow-up data were retrieved. Thirty-two cats met the inclusion criteria. Four cats (12.5%) had a positive intraoperative culture, with two of them being treated successfully. Ten cats out of 28 (35.7%) were documented with a positive urine culture during follow-up period, with a median time between discharge and identification of the first positive urine culture of 159 days (range 8–703 days). Bacteriuria resolved in 60% of cats (6/10). Escherichia coli was the most common organism, isolated in 4 out of 10 postoperative urine cultures. Overall, subclinical bacteriura was documented for 6 of 32 (18.8%) cats and 5 of 32 (15.6%) cats displayed clinicals signs suggestive of persistent UTI. One cat had subclinical bacteriuria. Three cats died during the follow-up period. There was a significant difference between negative and positive urine bacterial culture groups in median hospitalization duration (5 days versus 6 days, P = 0.022) and in median body condition score (5/9 versus 4/9, P = 0.03). Cats with a longer hospital stay and with a lower body condition score were more likely to have a positive urine culture during follow-up period. Conclusions SUB device placement surgery is associated with complications such as chronic bacteriuria. Bacteriuria in our study resolved with appropriate antibiotic treatment in more than half of cats. Risk factors identified for positive urine culture were a longer hospitalization duration and a decreased body condition score.

Domaines: Sciences du Vivant [q-bio]

Julie Deprey, Arnaud Baldinger, Véronique Livet, Margaux Blondel, Mathieu Taroni, et al.. Risk factors and clinical relevance of positive urine cultures in cats with subcutaneous ureteral bypass. BMC Veterinary Research, 2021, 17 (1), pp.199. ⟨10.1186/s12917-021-02898-7⟩. ⟨hal-03722130⟩