• Takekazu Miyoshi


Arrhythmias are by far the most common complication in adults with structural heart disease and complicate a substantial number of pregnancies. Most arrhythmias are benign, but therapy should be initiated for pregnant women with severe symptoms or hemodynamically unstable arrhythmias. Arrhythmias are also an important trigger for the occurrence of heart failure. All antiarrhythmic drugs undergo placental transfer to varying degrees, and there is potential for fetal effects. Therefore, the lowest effective dose of the medication should be chosen. Since atrial flutter/fibrillation, atrial tachycardia, ventricular tachycardia, and complete atrioventricular block may cause significant hemodynamic changes that may seriously affect the mother and fetus, appropriate diagnosis and emergency treatment are commonly required. Catheter ablation in pregnant women should be undertaken in a situation in which reasonable medication is ineffective. Pregnant women who present with unstable ventricular arrhythmias and at high risk for sudden cardiac death during pregnancy may be candidates for implantable cardioverter-defibrillator implantation. Since cardiac arrest is more common in the postpartum period compared with during pregnancy and labor, temporary use of a wearable cardioverter defibrillator in the postpartum period may be suitable for patients at higher risk of ventricular arrhythmias and long QT syndrome. This chapter reviews different types of arrhythmias and gives an overview of the current treatment strategies.


Antiarrhythmic drug Arrhythmia Bradycardia Implantable cardioverter defibrillator Pregnancy Tachycardia 


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Copyright information

© Springer Science+Business Media Singapore 2019

Authors and Affiliations

  • Takekazu Miyoshi
    • 1
  1. 1.Clinical Research Support CenterMie University HospitalTsuJapan

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