title: Acute Cardiac Failure in a Pregnant Woman due to Thyrotoxic Crisis.
abstract: Introduction. Cardiac failure during pregnancy is usually related to preeclampsia/eclampsia, rarely to hyperthyroidism. While hyperthyroidism can easily lead to hypertensive cardiac failure and may harm the fetus, it is sometimes difficult to distinguish hyperthyroidism from normal pregnancy. Case Presentation. We encountered a case of 41-year-old pregnant woman with hypertensive cardiac failure. Because we initially diagnosed as pre-eclampsia/eclampsia, Caesarian section was performed. However, her symptoms still persisted after delivery. After thyroid function test results taken on the day of admission were obtained on the fourth day, we could diagnose that her cardiac failure was caused by thyrotoxic crisis. Conclusions. Hypertensive cardiac failure due to hyperthyroidism during pregnancy is rare and difficult to diagnose because of similar presentation of normal pregnancy. However, physicians should be aware of the risks posed by hyperthyroidism during pregnancy.
authors.affiliation: Emergency and Critical Care Medicine, Tokushima University Hospital, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
authors.forename: Nao
authors.initials: N
authors.lastname: Okuda
authors.affiliation: Emergency and Critical Care Medicine, Tokushima University Hospital, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
authors.forename: Mutsuo
authors.initials: M
authors.lastname: Onodera
authors.affiliation: Emergency and Critical Care Medicine, Tokushima University Hospital, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Tsunano
authors.affiliation: Emergency and Critical Care Medicine, Tokushima University Hospital, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
authors.forename: Emiko
authors.initials: E
authors.lastname: Nakataki
authors.affiliation: Emergency and Critical Care Medicine, Tokushima University Hospital, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
authors.forename: Jun
authors.initials: J
authors.lastname: Oto
authors.affiliation: Emergency and Critical Care Medicine, Tokushima University Hospital, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
authors.forename: Hideaki
authors.initials: H
authors.lastname: Imanaka
authors.affiliation: Emergency and Critical Care Medicine, Tokushima University Hospital, 3-18-15 Kuramoto, Tokushima 770-8503, Japan.
authors.forename: Masaji
authors.initials: M
authors.lastname: Nishimura