Nichanun ChantarapiromWoradej HongsakornYada TingthanatikulSrithean LertvikoolSakda Arj Ong VallibhakaraSangchai PruttipanFaculty of Medicine, Ramathibodi Hospital, Mahidol University2019-08-282019-08-282018-05-01Journal of the Medical Association of Thailand. Vol.101, No.5 (2018), 581-586012522082-s2.0-85049129806https://repository.li.mahidol.ac.th/handle/20.500.14594/46694© 2018, Medical Association of Thailand. All rights reserved. Objective: To study the prevalence of intrauterine adhesion [IUA] in women who underwent vacuum aspiration [VA] for treatment of first trimester abortion and associated factors that correlated with the occurrence of IUA. Materials and Methods: This prospective study was performed in 81 women who were diagnosed with incomplete abortion, inevitable abortion, embryonic death, blighted ovum, or death fetus in utero at Ramathibodi Hospital between May 2016 and April 2017. All patients underwent VA and office hysteroscopy was performed 12 weeks post-procedure to identify the occurrence of IUA. Results: IUA were found in 14 women, which accounted for 17.3% of the participants. Most of the patients who had IUA were found to be in stage I (9/14, 64.3%), followed by patients in stage II (3/14, 21.4%) and stage III (2/14, 14.3%). Abnormal menstrual pattern after VA was found to be a statistically significant factor associated with IUA (odds ratio 6, 95% CI 2.95 to 12.55). Conclusion: IUA occurred in women who underwent VA after first trimester abortion and in those who had a history of abnormal menstrual pattern after VA. Therefore, before performing VA for first trimester abortion treatment, the patients should be informed about the risks of developing IUA.Mahidol UniversityMedicineArticleSCOPUS