Abstract
To clarify the impact of blood pressure (BP) management ranges on pregnancy outcomes, we conducted a multicenter retrospective analysis of 215 women with singleton pregnancies diagnosed with essential hypertension either before or within 14 weeks of gestation. Patients were classified according to systolic BP (sBP; <130, 130–139, 140–159, and ≥160 mmHg) or diastolic BP (dBP; <80, 80–89, 90–109, and ≥110 mmHg) at 8–11, 12–15, and 16–19 weeks of gestation. The risk of early-onset superimposed preeclampsia and small-for-gestational-age neonates was assessed in each BP group. Moreover, a subgroup analysis was performed in 144 eligible patients whose BP was measured at both 12–13 and 14–15 weeks of gestation. At 16–19 weeks of gestation, higher sBP significantly increased the incidence of early-onset superimposed preeclampsia (13.3%, 24.6%, 32.2% and 75.0%, respectively) and small-for-gestational-age neonates (6.0%, 13.1%, 16.9% and 50.0%, respectively). Multivariate logistic regression analyses showed that women with sBP < 130 mmHg at 16–19 weeks of gestation had a significantly lower risk of early-onset superimposed preeclampsia than women with sBP of 140–159 mmHg. Subgroup analyses also showed that even at 14–15 weeks of gestation, sBP < 130 mmHg was associated with a significantly lower risk of early-onset superimposed preeclampsia than an sBP of 140–159 mmHg. In conclusion, sBP < 130 mmHg within 14 weeks of gestation reduced the risk of developing early-onset superimposed preeclampsia in women with chronic hypertension.
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Acknowledgements
The facilities participating in this study were as follows: Kyoto University Hospital, Kurashiki Central Hospital, Kindai University Hospital, Hyogo Prefectural Amagasaki General Medical Center, Shizuoka General Hospital, National Hospital Organization Kyoto Medical Center, Kobe City Medical Center General Hospital, Japanese Red Cross Wakayama Medical Center, National Hospital Organization Osaka National Hospital, Kitano Hospital, Japanese Red Cross Otsu Hospital, Mitsubishi Kyoto Hospital, Takamatsu Red Cross Hospital, Japan Baptist Hospital and Rakuwakai Otowa Hospital.
We would like to thank Tetsuro HONDA, Takashi NAKAHORI, Ken FUKUHARA, Tomoyuki KUSUMOTO, Hikaru KIYOKAWA, Masahiro KUROIWA, Akihiro SHOJI, Yu TANAKA, Tomoki NISHIMURA, Rie HARA, Kazushi KOJIMA, Ryosuke KURODA, Shihori NAKAMURA and Hiroyuki TERABAYASHI at Kurashiki Central Hospital; Kosuke MURAKAMI and Yoshie YO at Kindai University Hospital; Masaya HIROSE at Hyogo Prefectural Amagasaki General Medical Center; Hirohiko TANI, Naoki HORIKAWA, Rei GO, Yoshihide INAYAMA, Maki UMEMIYA, Ryosuke KURODA, Sae YU, Suguru FUJITSUKA and Teruki YOSHIDA at Shizuoka General Hospital; Ikuko EMOTO and Koichi WATANABE at National Hospital Organization Kyoto Medical Center; Saeko TANABE and Ayami KOIKE at Kobe City Medical Center General Hospital; Mayo HINO at Japanese Red Cross Wakayama Medical Center; Yuichiro KOSHIDA at National Hospital Organization Osaka National Hospital; Atsuko TAGA and Kohei HAMADA at Kitano Hospital; Takanao ONJI and Ryoko OTANI at Japanese Red Cross Otsu Hospital; Koji SEO at Rakuwakai Otowa Hospital; Mariko FUJIMOTO and Hironao KOBAYASHI at Mitsubishi Kyoto Hospital; Ayaka NAKAMURA, Masumi YANAGAWA, Yukiko MIKAMI, and Hanako TAMAI at Japan Baptist Hospital; and Baku NAKAKITA at Kyoto University for management of cohort data in this manuscript. This study was performed under the research grant from the Japan Society for the Study of Hypertension in Pregnancy.
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Members of the Kyoto Academy Members of Obstetrics and Gynecology Aiming for Women’s Aid (KAMOGAWA) study are listed in the Acknowledgment section.
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Ueda, A., Hasegawa, M., Matsumura, N. et al. Lower systolic blood pressure levels in early pregnancy are associated with a decreased risk of early-onset superimposed preeclampsia in women with chronic hypertension: a multicenter retrospective study. Hypertens Res 45, 135–145 (2022). https://doi.org/10.1038/s41440-021-00763-6
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DOI: https://doi.org/10.1038/s41440-021-00763-6
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