title: Daily serial hemodynamic data during pregnancy and seasonal variation: the BOSHI study.
abstract: Although there are some reports that low plasma volume or increased cardiac output is associated with developing preeclampsia, there are few reports of daily serial hemodynamic data during pregnancy. A total of 37,092 home blood pressure (BP) and heart rate (HR) measurements were obtained from 425 normal pregnant women. Heart rate and shock index (SI) gradually increased by gestational week 32 and then decreased, whereas double product (DP) increased linearly during pregnancy. Although systolic BP and DP were consistently and negatively correlated with daily minimum outside temperature, HR and SI were positively correlated with minimum outside temperature in summer.
authors.affiliation: Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai, Japan. hmetoki@med.tohoku.ac.jp
authors.forename: Hirohito
authors.initials: H
authors.lastname: Metoki
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Ohkubo
authors.forename: Taku
authors.initials: T
authors.lastname: Obara
authors.forename: Konomi
authors.initials: K
authors.lastname: Akutsu
authors.forename: Mami
authors.initials: M
authors.lastname: Yamamoto
authors.forename: Mami
authors.initials: M
authors.lastname: Ishikuro
authors.forename: Kasumi
authors.initials: K
authors.lastname: Sakurai
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Iwama
authors.forename: Mikiko
authors.initials: M
authors.lastname: Katagiri
authors.forename: Junichi
authors.initials: J
authors.lastname: Sugawara
authors.forename: Takuo
authors.initials: T
authors.lastname: Hirose
authors.forename: Michihiro
authors.initials: M
authors.lastname: Sato
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kikuya
authors.forename: Katsuyo
authors.initials: K
authors.lastname: Yagihashi
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Matsubara
authors.forename: Nobuo
authors.initials: N
authors.lastname: Yaegashi
authors.forename: Shigeru
authors.initials: S
authors.lastname: Mori
authors.forename: Masakuni
authors.initials: M
authors.lastname: Suzuki
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Imai
mesh_terms: D000328:Adult; D001794:Blood Pressure; D018660:Blood Pressure Monitoring, Ambulatory; D005260:Female; D006339:Heart Rate; D006801:Humans; D008137:Longitudinal Studies; D010953:Plasma Volume; D011225:Pre-Eclampsia / Q000503:physiopathology; D011237:Predictive Value of Tests; D011247:Pregnancy / Q000502:physiology*; D012016:Reference Values; D012621:Seasons; D014887:Weather