Short-term versus continuous antimicrobial therapy for asymptomatic bacteriuria in pregnancy

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Abstract

Asymptomatic bacteriuria was identified in 300 pregnant women prior to the 28th week of gestation. In one group of 200 women short-term treatment with either nitrofurantoin or sulfamethizole was given for 14 days, and in another group of 100 women continuous therapy with one of these drugs was given for the remainder of gestation. Weekly urine cultures were obtained from all the women. Of the women treated with short-term therapy, 65% were abacteriuric for the remainder of pregnancy following one course of therapy, 24% became abacteriuric but subsequently relapsed, 2% had reinfection after becoming abacteriuric, and 9% demonstrated no response. Following treatment with a second course of short-term therapy, another 19% of these women were cured for the remainder of their pregnancy, and 3.5% responded to a third course. In the continuous therapy group, 88% of the women became abacteriuric for the remainder of the gestation, 3% demonstrated relapse, 2% developed reinfection, and 7% had no response to the first drug given. These data demonstrate that short-term administration of antimicrobials, when combined with surveillance for recurrent bacteriuria, is effective for the management of the pregnant woman with asymptomatic bacteriuria.

Original languageEnglish (US)
Pages (from-to)262-263
Number of pages2
JournalObstetrics and gynecology
Volume49
Issue number3
StatePublished - Mar 1977

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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