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A case control study on the effect of threatened miscarriage on selected pregnancy outcomes

Sri Lanka college of Obstetricians & Gynaecologists
  • Obstetrics And Gynaecology
  • Threatened Miscarriage


Objective: To describe and ascertain adverse pregnancy outcomes in mothers with threatened miscarriage. Methods: A case control study involving 110 mothers with threatened miscarriage during the first 14 weeks of pregnancy with 220 age and parity matched controls The study period was one year from November 2006 and conducted at Sri Jayewardenepura General Hospital (SJGH), Nugegoda. Results: The mean maternal age of the study group was 28.8 (SD - 4.6) years and 69 (62.7%) of the mothers were nulli parous while 34 (30.9%) were multi parous women. The complications seen in the study group were preterm delivery 12 (10.9%), preterm premature rupture of membranes 7 (6.4%), placental abruption 6 (5.5%), small for gestation 20 (18.2%) and manual removal of placenta 2 (1.8%). When compared with age and parity matched controls there was a significant increase in pregnancy induced hypertension and its complications (Pearson's Χ2 = 8.224, P < 0.05) and fetal growth restriction (Pearson's Χ2 = 5.029, P < 0.025). There was no statistically significant difference between the two groups with regard to pre term pre labour rupture of membranes, caesarean section, delivery of babies small for gestational age and manual removal of the placenta. Conclusion: Threatened miscarriage is associated with placental abruption, pregnancy induced hypertension and fetal growth restriction. Key words: Threatened miscarriage. DOI: 10.4038/sljog.v31i1.1736 Sri Lanka Journal of Obstetrics and Gynaecology 2009; 31: 34-38

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