Volume 2, Issue 4 (2017)                   SJRM 2017, 2(4): 9-12 | Back to browse issues page

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Alijani L, Mosadegh H, Saremi A, Mashhadi khan M. Maternal Risk Factors of Premature Rupture of Membrane (PROM) after 37 Weeks of Pregnancy. SJRM. 2017; 2 (4) :9-12
URL: http://saremjrm.com/article-1-51-en.html
1- Sarem Fertility & Infertility Research Center (SAFIR), Sarem Women’s Hospital, Tehran, Iran
2- Sarem Fertility & Infertility Research Center (SAFIR)” and “Sarem Cell Research Center (SCRC)”, Sarem Women’s Hospital, Tehran, Iran , Saremiat@yahoo.com
3- Sarem Cell Research Center (SCRC), Sarem Women’s Hospital, Tehran, Iran
Abstract:   (5548 Views)

Aims: Different risk factors are known to be contributed to premature rupture of membrane (PROM). However, its certain cause has always been discussed. Therefore, the present study was aimed to investigate the maternal risk factors of PROM after 37 weeks of pregnancy.
Materials & Methods: This case-control study was conducted on 242 pregnant women referred to Sarem women’s hospital (Tehran, Iran) in 2011-2013. The women in case group (n=121) had PROM at least one hour before delivery. The women in control group (n=121) were matched in terms of maternal age with case group. The effects of factors including vaginal culture, abortion history, gravids, history of cervical surgery and cervical length were investigated on PROM. Data were analyzed using Chi-square, Fischer exact and Mann-Whitney tests by SPSS software.
Findings: There was no significant difference in age distribution between case and control groups. There were no significance associations between gravids, vaginal culture and history of cerclage with PROM (p>0.05). However, significant associations were found between the numbers of previous abortions and cervix length less than 35mm with PROM (p<0.05).
Conclusion: The factors including cervical length less than 35mm and the number of previous abortions (both of which are related in some way) are the maternal risk factors affecting PROM after 37 weeks of pregnancy.  

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Article Type: Original Research | Subject: Sterility
Received: 2016/07/26 | Accepted: 2017/01/11 | Published: 2018/02/20

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