شيوع ناقلين واژينال استرپتوكوك گروه B در زنان حامله مراجعه كننده به بخش زايمان بمارستان شهركرد (سال 1379)

A STUDY DETERMINE THE PREVALENCE OF VAGINAL GROUP B STREPTOCOCCAL CARRIERS IN PERGNANT WOMEN

Group B streptococcus (GBS) is a major cause of neonatal meningitis and septiscemia. Infection is transmitted from infected pregnant mothers to infants during delivery. This study was carried out in order to identify the rate of vaginal GBS carriers among pregnant women and also some of the factors effecting vaginal colonization of the bacteria. Vaginal cultures were done on 624 women on arrival for term delivery, preterm labour or premature rupture of membrane (PROM) , in Shahrekord Hajar hospital and were screened for GBS. In addition, a Specical form consisting of age, type of delivery, parity, intrapartum complications and use of oral contraceptive pills (OCPs) or IUDs was completed for each person. Infants born from infected mothers were monitored for the infection three months after delivery. One- hundred ten of 624 pregnant women (18%) were vaginal carriers of GBS. OCPs and IUDs have been used by 23% and 15% of them respectively. Fifty eight percent of the deliveries were by cessarian section. There was no significant difference between the rate of preterm labour and the type of delivery in GBS- positive and GBS- negative cases. But the rates of IUDs usage and PROM were significantly different. Since the rate of maternal vaginal carriage is high, it is recommended that, a vaginal culture for all of pregnant women in the terminal stapes of pregnancy be performed and a prophylactic choice therapy in culture positive mothers with PROM and high risk labours to be performed.