Objective: The study evaluated the clinical course of a low-lying placenta, the outcome of a placenta previa with or without morbidly adherent placenta, and the association with previously reported risk factors.
Materials and methods: A prospective descriptive study was conducted from December 2016 to May 2018 at a tertiary care hospital and medical institute on 66 cases of a sonographically diagnosed abnormal placental attachment at 20 or more than 20 weeks of gestation. We analyzed the potential risk factors and the respective outcomes of pregnancies with an abnormal placental attachment.
Results: Of the 66 patients in the study, most of the patients (60.6%) were above the age of 30 years; the mean maternal age in the present study was 29.03 years. In this study, the rate of placental migration was 85% in patients without any history of a prior uterine surgery compared to 19.6% in patients with a history of a prior uterine surgery. The major outcome in our study was operative delivery (in 45 patients). A live birth was observed in 64 cases and 2 cases presented with an Intrauterine fetal demise. Of the 64 live born babies in the study, 14 (21.2%) were small for the gestational age and 50 (75.8%) were appropriate for the gestational age.
Conclusion: Our study concluded that the most consistent risk factor of an abnormal placental attachment in pregnancy is scarred uterus. Abnormal placental attachment was associated with a higher operative delivery, hysterectomy, and blood transfusions.
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