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KMID : 1143220220650020166
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Obstetrics & Gynecology Science
2022 Volume.65 No. 2 p.166 ~ p.175
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Pregnancy and neonatal outcomes after periconceptional exposure to isotretinoin in Koreans
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Cha Eun-Hwan
Kim Nae-Ry
Kwak Ho-Seok
Han Hae-Ji
Joo Sung-Hong
Choi June-Seek
Chun Kyoung-Chul
Kim Young-Ah
Koh Jae-Whoan
Han Jung-Yeol
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Abstract
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Objective: Isotretinoin should not be used during pregnancy because of the risk of birth defects. Most pregnant women exposed to isotretinoin choose voluntary pregnancy termination due to concerns about birth defects. However, birth outcome data supporting the termination of pregnancy are lacking. This study aimed to evaluate pregnancy and neonatal outcomes after periconception exposure to isotretinoin.
Methods: This was a prospective cohort study. We evaluated pregnancy and neonatal outcomes after exposure to isotretinoin in 151 pregnant women. Among 1,026 callers at the Korean Teratology Information Service from 2001 to 2017 exposed to isotretinoin during the periconception period, 151 pregnant women who received counseling on teratogenic risk after visiting the clinic were included.
Results: Among the 151 participants who visited the clinic, only 42 were evaluated using ultrasonography until approximately 20 weeks of gestation. Ultimately, 23 patients were included in the study. The average gestation period during the last exposure to the drug was 2 weeks, and the average daily exposure dose was 12 mg. There were two cases of major birth defects in the exposure group. Spontaneous abortion rates were 17.7% and 8.7% in the exposure and nonexposure groups, respectively (P=0.035). There was no significant difference between the exposure and non-exposure groups in terms of pregnancy and neonatal outcomes.
Conclusion: There was no significant difference in pregnancy and neonatal outcomes, including birth defects, between the exposure and non-exposure groups. Further studies with larger sample sizes are required to validate our findings.
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KEYWORD
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Isotretinoin, Congenital abnormalities, Teratogens, Pregnancy, Maternal exposure
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