Intrauterine hematomas in the second and third trimesters associated with adverse pregnancy outcomes: a retrospective study.
OBJECTIVE
To carry out a retrospective study of the clinical features of patients with intrauterine hematoma in the second and third trimesters, and discuss the risk factors for poor pregnancy outcomes.


METHODS
A total of 398 patients who underwent routine examination in our hospital from January 2011 to December 2015 were classified into normal pregnancy (NP) group (N = 265) and adverse pregnancy (AP) group (N = 133), according to their pregnancy outcomes. Maternal clinical demographics, gestational age, location of hematoma, volume of hematoma, and accompanying contraction and vaginal bleeding were recorded.


RESULTS
The average age of pregnant women in the NP and AP groups was 28.25 ± 4.06 and 29.5 ± 5.06 years, respectively (p = 0.007). Gestational age at first detection of hematoma was 15.11 ± 5.13 weeks in the NP group compared with 21.22 ± 8.25 weeks in the AP group (p < 0.001). In the AP group, the incidence of retroplacental hematoma (54.1%) and palpable contractions (62.8%) was significantly higher than in the NP group (25.7% and 12.1%, respectively; p < 0.01). However, similar maternal parity or history of delivery, volume of hematoma and incidence of vaginal bleeding were found.


CONCLUSION
Intrauterine hematoma in the second and third trimesters is a sign of pathological pregnancy, resulting in adverse outcomes. Maternal age, gestational age at first diagnosis, location of hematoma and accompanying contraction are risk factors for poor pregnancy outcomes.
['Ji|Wanqing|W|', 'Li|Weidong|W|', 'Mei|Shanshan|S|', 'He|Ping|P|']
D000328:Adult D016022:Case-Control Studies D005260:Female D006406:Hematoma D006801:Humans D011247:Pregnancy D011249:Pregnancy Complications, Cardiovascular D011256:Pregnancy Outcome D011262:Pregnancy Trimester, Second D011263:Pregnancy Trimester, Third D012189:Retrospective Studies D012307:Risk Factors D014463:Ultrasonography D014592:Uterine Hemorrhage
Intrauterine hematoma second and third trimester pregnancy complications