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Anales de la Facultad de Ciencias Médicas (Asunción)

Print version ISSN 1816-8949


FRETES, MARTIN, Sebastián et al. Urinary Infection in Pregnant Women who attend the Outpatient Office of the Maternal Infant Hospital of Santísima Trinidad. Asunción, Paraguay. An. Fac. Cienc. Méd. (Asunción) [online]. 2020, vol.53, n.1, pp.31-40. ISSN 1816-8949.


The most common type of infection in pregnant women affects the urinary tract (UTI), due to several factors that may contribute to its development. This can cause different complications in the fetus and mother.


To determine the prevalence of UTI in pregnant women who attend the Maternal Infant Hospital of Santísima Trinidad.

Materials and Methods:

Observational, descriptive, prospective cross-sectional study in pregnant women who attended prenatal controls at the Maternal Infant Hospital of Santísima Trinidad, in Asunción, Paraguay, from May to November of the year 2018. Demographic, clinical and laboratory variables were determined.


We analyzed samples of 202 patients, the mean age was 24 ± 6 years. 83% of them showed symptoms that suggested UTI but the prevalence was 2%. The most common etiological agents isolated were: Escherichia coli and Staphylococcus saprophyticus. All patients with UTI showed clinical manifestations, mostly nocturia, urinary frequency, flank pain and dark urine.


UTI manifestations may be unreliable during pregnancy due to the large percentage of pregnant women who presented suggestive symptoms but negative urine culture. The definitive diagnostic test of UTI is the presence in the urine culture of a single germ in an amount equal to or greater than 105 CFU/mL.

Keywords : Urinary tract infections; bacteriuria; pregnancy complications; pregnancy.

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