title: Resumption of sinus rhythm from fetal complete atrioventricular block after maternally administered ritodrine.
abstract: Reports have indicated that maternal administration of ritodrine increased the ventricular rate and thus ameliorated signs of heart failure in a fetus with complete atrioventricular block (CAVB). A fetus from a mother without the anti-SS-A/SS-B antibody had CAVB, with atrial rate 148-154 bpm and ventricular rate 53-57 bpm. After maternal administration of ritodrine, the ventricular rate increased to 60-65 bpm, and then sinus rhythm resumed. Ritodrine may not only increase the ventricular rate but also induce sinus rhythm in a fetus with CAVB.
authors.forename: Shigeki
authors.initials: S
authors.lastname: Matsubara
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Takamura
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Kuwata
authors.forename: Hirohiko
authors.initials: H
authors.lastname: Shiraishi
authors.forename: Satsuki
authors.initials: S
authors.lastname: Okuno
authors.forename: Mitsuaki
authors.initials: M
authors.lastname: Suzuki
mesh_terms: D000328:Adult; D001146:Arrhythmia, Sinus / Q000175:diagnosis / Q000188:drug therapy*; D054537:Atrioventricular Block / Q000175:diagnosis / Q000188:drug therapy*; D004452:Echocardiography; D005260:Female; D006321:Heart / Q000187:drug effects / Q000502:physiology; D006340:Heart Rate, Fetal / Q000187:drug effects / Q000502:physiology; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D012312:Ritodrine / Q000008:administration & dosage / Q000627:therapeutic use*; D013566:Sympathomimetics / Q000627:therapeutic use*; D016896:Treatment Outcome
chemical_list: D013566:Sympathomimetics; D012312:Ritodrine