PURPOSE:

This study was conducted to assess the clinical efficacy of a single dose of fosfomycin trometamol for the treatment of both asymptomatic and symptomatic bacteriuria in the third trimester of pregnancy compared with a 7-day regimen of amoxicillin-clavulanic acid

MATERIAL – METHODS:

In this study clinical efficiency of single dose of 3 g fosfomycin trometamol and 7 day 675 mg amoxicillin-clavulanic acid were compared on 85 pregnant women in 3rd trimester with symptomatic and asymptomatic bacteriauria. Patients divided into four groups and single dose of fosfomycin trometamol applied on group 1 (asymptomatic bacteriauria patients) and group 3 (symptomatic bacteriauria patients) while 7 day 675 mg amoxicillin-clavulanic acid applied on group 2 (asymptomatic bacteriauria patients) and group 4 (symptomatic bacteriauria patients). Microbiological assessments ( urine analyses and culture ) and rutine biochemical tests were performed before and at 7 days after the administration. No serious side effects have been reported related with both drugs. Negative urine cultures performed 7 days after the initial positive cultures were considered as bacteriological eradication and the absence of the initial urinary symptoms were considered as clinical success.

RESULTS:

Escherichia coli was the most frequently observed microorganism in urine culture of all four groups with clinical success and bacterial eradication of 95-100% of the patients treated with fosfomycin trometamol in groups 1 and 3, respectively and 95-90% of the patients treated with amoxicillin-clavulanic acid in groups 2 and 4, respectively. Both treatments were well tolerated in all groups without any serious side effects. No significant difference was detected between the success rates of both drugs.

CONCLUSION:

A single dose of fosfomycin trometamol is a safe and effective alternative in the treatment of both asymptomatic and symptomatic urinary tract infections in the third trimester of pregnancy.

Keywords: urinary tract infection, pregnancy, fosfomycin trometamol, amoxicillin-clavulanic acid