Saad Ariel K, Miglio Valentín, Romano Eduardo A A, Vázquez Blanco Manuel
División Cardiología, Hospital de Clínicas José de San Martín, Facultad de Medicina, Universidad de Buenos Aires.
Medicina (B Aires). 2012;72(3):255-8.
During pregnancy, there is an increase in metabolism, oxygen consumption, heart rate, stroke volume, cardiac output, blood volume and a decrease in blood pressure and peripheral resistance. Studies have shown that during this period the occurrence of cardiac arrhythmias is not uncommon. Fortunately, malignant arrhythmias are rare. Herein we report two young patients who presented with symptomatic right ventricular outflow tachycardia during pregnancy that required antiarrhythmic therapy. Possible pathophysiologic mechanisms are discussed.
在怀孕期间，新陈代谢、氧气消耗、心率、每搏输出量、心输出量、血容量会增加，而血压和外周阻力会降低。研究表明，在此期间心律失常的发生并不罕见。幸运的是，恶性心律失常很少见。在此，我们报告两名年轻患者，她们在怀孕期间出现有症状的右心室流出道心动过速，需要抗心律失常治疗。文中讨论了可能的病理生理机制。
