2Kuklina EV,Ayala C,Callaghan WM.Hypertensive disorders and severe obstetric morbidity in the United StatesObstetrics and Gynecology,2009.
3Leung T,Leung T,Leung TY,et al.Trends in maternal obesity and associated risks of adverse p regnancy outcomes in a population of Chinese womenBJOG,2008.
4Catov JM,Ness RB,Kip KE,et al.Risk of early or severe p reeclamp sia related to p reexisting conditionsInternational Journal of Epidemiology,2007.
5Joglar JA, Page RL. Management of arrhythmia syndromes during pregnancy [ J ]. CurrOpinCardiol,2014,29 ( 1 ) :36 - 44.
6Silversides CK, Harris L, Haberer K, et al. Recurrence rates of ar- rhythmias during pregnancy in women with previous tachyarrhythmia and impact on fetal and neonatal outcomes[ J]. Am J Cardiol,2006, 97(8) :1206 - 1212.
7European Society of Cardiology(ESC). Guidelines on the management of cardiovascular diseases during pregnancy: the task force on the management of cardiovascular diseases during pregnancy of the ESC [J]. Eur Heart J,2011,32(24) :3147 -3197.
8Ferguson JD, Helms A, Mangrum M, et al. Ablation of incessant left atrial tachycardia without fluoroscopy in a pregnant woman [ J ]. J Car- diovascElectrophysio1,2011,22 ( 3 ) :346 - 349.
9Natale A, Davidson T, Geiger M J, et al. Implantable cardioverter-de- fibrillators and pregnancy : a safe combination [ J ]. Circulation, 1997, 96(9) :2808 -2812.
10Hidaka N, Chiba Y, Fukushima K, et al. Pregnant women with com- plete atrioventrieular block : perinatal risks and review of management [ J ]. Pacing ClinElectrophysiol, 2011,34 ( 9 ) : 1161 - 1176.
