Antibiotic prophylaxis prior to urodynamic study in patients with traumatic spinal cord injury. Is there an indication?

Vol. 45 (x): 2019 January 1.[Ahead of print]

doi: 10.1590/S1677-5538.IBJU.2018.0574


ORIGINAL ARTICLE

Marcello Torres da Silva 1, André Luis Barboza 2, Maria Malen Pijoán 3, Paulo Sergio Siebra Beraldo 4
1 Serviço de Urologia, Rede Sarah de Hospitais de Reabilitação, São Luís, MA, Brasil; 2 Serviço de Urologia, Rede Sarah de Hospitais de Reabilitação, Brasília, DF, Brasil 3 Instituto Universitario Italiano de Rosario – Ciências Biomédicas, Rosario, Santa Fe, Argentina; 4 Serviço de Lesão Medular, Rede Sarah de Hospitais de Reabilitação, Brasília, DF, Brasil

ABSTRACT

Study design: Retrospective cohort of patients with traumatic spinal cord injury (SCI) that have been hospitalized for physical-functional rehabilitation purposes.
Objectives: To compare the incidence of urinary tract infection (UTI) after urodynamic study (UDS) in three hospitals that adopted different protocols with regard to the preparation of patients.
Setting: Sarah Network of Rehabilitation Hospitals, Brazil.
Materials and Methods: Between 2014 and 2015, 661 patients from three units of the same hospital network, one of which does not use antimicrobial prophylaxis independently of urine culture results, were evaluated after having undergone UDS. The results were compared in both univariate and multivariate analyses (logistic regression).
Results: The global rate of UTI after UDS was that of 3.18% (IC 95% 2.1-4.8), with no differences between the units. In the univariate analysis the only variable that was associated with UTI after UDS was that of T6 injuries or above (P = 0.029). The logistic regression has confi rmed this result, with an adjusted odds ratio of 3.06 (IC 95% 1.01 to 9.26; P = 0.0476). The use of antimicrobial prophylaxis did not alter that risk.
Conclusions: This study has demonstrated that the use of antimicrobials does not prevent UTI after UDS. Patients with T6 traumatic SCI or above have got three times more chance of developing UTI after UDS if compared to those with a T7 injury or below, independently of the use of antimicrobials. Even in these patients the use of antimicrobials would not be justifi ed.

Keywords: Urinary Tract Infections; prevention and control [Subheading]; Spinal Cord Injuries

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