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. 2021 Mar;60(2):262-265.
doi: 10.1016/j.tjog.2021.01.005.

Gestational weight gain and glycemic control in GDM patients with positive genital culture

Dominika Pykało-Gawińska  1 , Julia Zaręba-Szczudlik  2 , Cieszymierz Gawiński  3 , Anna Stępień  3 , Agnieszka Dobrowolska-Redo  1 , Aneta Malinowska-Polubiec  1 , Ewa Romejko-Wolniewicz  1
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Free article

Gestational weight gain and glycemic control in GDM patients with positive genital culture

Dominika Pykało-Gawińska et al. Taiwan J Obstet Gynecol. 2021 Mar.
Free article

Abstract

Objective: Gestational diabetes mellitus (GDM) is related to many complications of pregnancy. The aim of the study was the assessment of cervical colonization in GDM patients and its correlation with inappropriate glycaemic control and gestational weight gain (GWG).

Materials and methods: The study included 483 women with GDM in a singleton pregnancy who delivered at term. Cervical smears samples were collected >35th week of gestation and cultured for aerobic and aerobic bacteria, and fungi. The patients were divided into two groups on the basis of cervical culture test results: women with negative and positive cervical culture results. Gestational weight gain was estimated in both groups as inadequate, adequate or excessive based on pre-gestational body mass index (BMI) according to the Institute of Medicine (IOM) guidelines. GWG and need of insulin therapy were used as an indicator of complying with dietary recommendations.

Results: Patients with positive cervical culture results more frequently had pre-pregnancy BMI >35kg/m2 (4.9% vs 9.5%, p = 0.0508) than patients who had negative cervical culture results. One third (32.1%) of patients had one, and 9.3% had at least two microorganisms in their genital tracts. The most frequent bacteria species isolated was Streptococcus agalactiae (20.1%). Fungi were present in 14.1% of the cervical cultures. Patients with GDM with inadequate GWG more often had genital tract's colonization with Enterococcus spp. (6.83% vs. 1.19% vs. 1.83%, in group with inadequate GWG vs. adequate GWG vs. excessive GWG respectively p = 0.007).

Conclusion: Insulin therapy in GDM patients was not correlated with the presence of microorganisms in genital tracts. Inadequate GWG in GDM may be linked to genital tract colonization with Enteroccocus spp. Genital colonization during pregnancy among patients with GDM is more often among patients' with pre-pregnancy BMI >35 kg/m2.

Keywords: Body mass index; Diabetes; Gestational; Gestational weight gain; Microbiota.

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Conflict of interest statement

Declaration of competing interest All authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

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