Obstetrics and Perinatal Outcomes with Isolated Oligohydramnios at Term Pregnancy

Kumsa H and Yimer NB

School of Midwifery, College of Health Sciences, Woldia University, Ethiopia

^*Correspondance to: Henok Kumsa 

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Abstract:

Isolated oligohydramnios refers to the presence of oligohydramnios without any fetal and maternal complications. Effects of this condition on perinatal outcomes were inconclusive across a broad range of studies. We reviewed the literature on isolated oligohydramnios with perinatal outcomes. Electronic databases like PubMed, CINAHL, Web of Science, EMBASE, and Medline were searched from inception to 2022 using keywords and MeSH terms for perinatal outcomes and isolated oligohydramnios. Observational studies (Cohort, case-control) and systematic review & metaanalysis studies published in English were included. Whereas, letters of personal communications, case reports, and case series were excluded. Studies with singleton and low-risk pregnancy, cephalic presentation, and oligohydramnios (amniotic fluid index ≤ 5 cm) were included. Exclusion criteria were studies that include pregnancies with fetal malformation, chromosomal anomaly; growth restriction, and interventional drugs. We obtained 557 full texts from electronic databases but only 35 articles met the inclusion criteria. The narrative review revealed that an association does not exist between isolated oligohydramnios and low Apgar score, non-reassuring fetal heartbeat pattern, fetal distress, and umbilical artery/vein pH less than 7.1/7.2. However, isolated oligohydramnios is significantly associated with higher rates of labor induction and cesarean sections. Nevertheless, the impact of isolated oligohydramnios on meconium-stained amniotic fluid and neonatal intensive care unit were inconclusive across the finding. Further large-scale follow-up studies are needed to better elucidate the available evidence

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Cite the Article:

Kumsa H, Yimer NB. Obstetrics and Perinatal Outcomes with Isolated Oligohydramnios at Term Pregnancy. Clin Case Rep Int. 2023; 7: 1562..