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Abstract
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Introduction:
Subchorionic hematomas occur when there is bleeding between the chorionic membrane and uterine wall. The incidence is approximately 1.3-3.1%. Multiple studies have evaluated subchorionic hematomas and demonstrate inconsistent findings regarding their association with adverse pregnancy outcomes. Our aim in this project was to evaluate whether vaginal bleeding in the presence of a subchorionic hematoma increases adverse pregnancy outcomes.
Methods:
This was a retrospective chart review of all pregnant patients who had a first trimester sonogram at our MFM center from 8/2015-5/2020. Inclusion criteria included patients with diagnosis of subchorionic hematoma in the first trimester. Exclusion criteria included multiple gestation, vanishing twin, pregnancies complicated by fetal anomalies or chromosomal abnormalitiesResults: 100 patients with diagnoses of 1st trimester hematomas were analyzed. Approximately 37% presented with 1st trimester bleeding. There was no significant difference between those who presented with vaginal bleeding and those who did not, in the following categories: spontaneous abortion (2.7% vs 0, p=0.74), IUFD (0% vs 3.1%, p=0.67), gestational HTN (5.4% vs 6.3%, p=0.81), pre-eclampsia (10.8% vs 7.9%, p = 0.79), IUGR (0 vs 4.7%, p=0.97), oligohydramnios (2.7% vs 6.3%, p=0.73) and preterm delivery (5.4% vs 3.1%, p=0.98).
Conclusion/Implications:
No significant association was found with adverse pregnancy outcomes, in patients with or without bleeding. There was a trend towards an increased rate of spontaneous abortion, pre-eclampsia and preterm delivery in those with bleeding. Further research would investigate a broader subset of patients, including age-matched controls and investigating the impact of hematoma size on pregnancy outcomes
Subchorionic hematomas occur when there is bleeding between the chorionic membrane and uterine wall. The incidence is approximately 1.3-3.1%. Multiple studies have evaluated subchorionic hematomas and demonstrate inconsistent findings regarding their association with adverse pregnancy outcomes. Our aim in this project was to evaluate whether vaginal bleeding in the presence of a subchorionic hematoma increases adverse pregnancy outcomes.
Methods:
This was a retrospective chart review of all pregnant patients who had a first trimester sonogram at our MFM center from 8/2015-5/2020. Inclusion criteria included patients with diagnosis of subchorionic hematoma in the first trimester. Exclusion criteria included multiple gestation, vanishing twin, pregnancies complicated by fetal anomalies or chromosomal abnormalitiesResults: 100 patients with diagnoses of 1st trimester hematomas were analyzed. Approximately 37% presented with 1st trimester bleeding. There was no significant difference between those who presented with vaginal bleeding and those who did not, in the following categories: spontaneous abortion (2.7% vs 0, p=0.74), IUFD (0% vs 3.1%, p=0.67), gestational HTN (5.4% vs 6.3%, p=0.81), pre-eclampsia (10.8% vs 7.9%, p = 0.79), IUGR (0 vs 4.7%, p=0.97), oligohydramnios (2.7% vs 6.3%, p=0.73) and preterm delivery (5.4% vs 3.1%, p=0.98).
Conclusion/Implications:
No significant association was found with adverse pregnancy outcomes, in patients with or without bleeding. There was a trend towards an increased rate of spontaneous abortion, pre-eclampsia and preterm delivery in those with bleeding. Further research would investigate a broader subset of patients, including age-matched controls and investigating the impact of hematoma size on pregnancy outcomes
Introduction:
Subchorionic hematomas occur when there is bleeding between the chorionic membrane and uterine wall. The incidence is approximately 1.3-3.1%. Multiple studies have evaluated subchorionic hematomas and demonstrate inconsistent findings regarding their association with adverse pregnancy outcomes. Our aim in this project was to evaluate whether vaginal bleeding in the presence of a subchorionic hematoma increases adverse pregnancy outcomes.
Methods:
This was a retrospective chart review of all pregnant patients who had a first trimester sonogram at our MFM center from 8/2015-5/2020. Inclusion criteria included patients with diagnosis of subchorionic hematoma in the first trimester. Exclusion criteria included multiple gestation, vanishing twin, pregnancies complicated by fetal anomalies or chromosomal abnormalitiesResults: 100 patients with diagnoses of 1st trimester hematomas were analyzed. Approximately 37% presented with 1st trimester bleeding. There was no significant difference between those who presented with vaginal bleeding and those who did not, in the following categories: spontaneous abortion (2.7% vs 0, p=0.74), IUFD (0% vs 3.1%, p=0.67), gestational HTN (5.4% vs 6.3%, p=0.81), pre-eclampsia (10.8% vs 7.9%, p = 0.79), IUGR (0 vs 4.7%, p=0.97), oligohydramnios (2.7% vs 6.3%, p=0.73) and preterm delivery (5.4% vs 3.1%, p=0.98).
Conclusion/Implications:
No significant association was found with adverse pregnancy outcomes, in patients with or without bleeding. There was a trend towards an increased rate of spontaneous abortion, pre-eclampsia and preterm delivery in those with bleeding. Further research would investigate a broader subset of patients, including age-matched controls and investigating the impact of hematoma size on pregnancy outcomes
Subchorionic hematomas occur when there is bleeding between the chorionic membrane and uterine wall. The incidence is approximately 1.3-3.1%. Multiple studies have evaluated subchorionic hematomas and demonstrate inconsistent findings regarding their association with adverse pregnancy outcomes. Our aim in this project was to evaluate whether vaginal bleeding in the presence of a subchorionic hematoma increases adverse pregnancy outcomes.
Methods:
This was a retrospective chart review of all pregnant patients who had a first trimester sonogram at our MFM center from 8/2015-5/2020. Inclusion criteria included patients with diagnosis of subchorionic hematoma in the first trimester. Exclusion criteria included multiple gestation, vanishing twin, pregnancies complicated by fetal anomalies or chromosomal abnormalitiesResults: 100 patients with diagnoses of 1st trimester hematomas were analyzed. Approximately 37% presented with 1st trimester bleeding. There was no significant difference between those who presented with vaginal bleeding and those who did not, in the following categories: spontaneous abortion (2.7% vs 0, p=0.74), IUFD (0% vs 3.1%, p=0.67), gestational HTN (5.4% vs 6.3%, p=0.81), pre-eclampsia (10.8% vs 7.9%, p = 0.79), IUGR (0 vs 4.7%, p=0.97), oligohydramnios (2.7% vs 6.3%, p=0.73) and preterm delivery (5.4% vs 3.1%, p=0.98).
Conclusion/Implications:
No significant association was found with adverse pregnancy outcomes, in patients with or without bleeding. There was a trend towards an increased rate of spontaneous abortion, pre-eclampsia and preterm delivery in those with bleeding. Further research would investigate a broader subset of patients, including age-matched controls and investigating the impact of hematoma size on pregnancy outcomes
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