妊婦の高齢化に伴い,重篤な周産期合併症の一つである妊娠高血圧症候群(hypertensive disorder of pregnancy :
HDP)の発症リスクが高まっている。本研究では,妊娠22 週以降に分娩した単胎妊娠の初産婦を対象に,加齢や肥満, 生殖補助医療(assisted reproductive technology : ART)が,HDP の適応で帝王切開分娩に至ったHDP帝切のリスク因子として,どの程度関与するか検討した。 ART による妊娠(ART 妊娠群)は,ART によらない妊娠(非ART 妊娠群)と比べて,平均年齢・平均BMI・HDP 帝切率が有意に高かった。加齢・肥満・ART妊娠は,いずれも独立したHDP 帝切のリスク因子であり,その調整オッズ比は年齢1.08,BMI 1.12,ART 妊娠 2.81 であった。このように,ART による妊娠はHDP 帝切のハイリスクであり,特に慎重な周産期管理を要することが明らかになった。As pregnant women age, the risk of developing hypertensive disorder of pregnancy (HDP), one of the serious perinatal complications, increases. In this study, we analyzed the database of 14,088 births at our hospital and examined the extent to which age, obesity, and assisted reproductive technology (ART) are risk factors for cesarean section delivery due to HDP (HDP-CS). Pregnancies established with ART (ART pregnancy) had significantly higher mean age, mean BMI, and HDPCS
rates than pregnancies established without ART (non-ART pregnancy). Age, obesity, and ART pregnancy were all
independent risk factors for HDP-CS, with adjusted odds ratios of 1.08 for age, 1.12 for BMI, and 2.81 for ART pregnancy. This study demonstrated that ART pregnancy has the highest risk of HDP-CS and requires particularly careful perinatal management.departmental bulletin pape
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