title: Zero-fluoroscopy catheter ablation of severe drug-resistant arrhythmia guided by Ensite NavX system during pregnancy: Two case reports and literature review.
abstract: BACKGROUND
  Cardiac arrhythmias can occur during pregnancy. Owing to radiation exposure and other uncertain risks for the mother and fetus, catheter ablation has rarely been performed and is often delayed until the postpartum period. We reported 2 pregnant women who were experiencing severe arrhythmias and were successfully ablated without fluoroscopic guidance. We also carried out a literature review of cases of pregnant women who underwent zero-fluoroscopy ablation.
  
  
  RESULTS
  One woman had drug-resistant and poorly tolerated frequent premature ventricular contraction (PVC) and ventricular tachycardia (VT). The other one had persistent and hardly terminated supraventricular tachycardia (SVT) via a right accessory pathway. The 2 patients were successfully underwent zero-fluoroscopy ablation guided by Ensite NavX system. The procedure time was 42 and 71 minutes, respectively.
  
  
  CONCLUSIONS
  Catheter ablation of SVT or PVC/VT in pregnant patients can be safely and effectively performed with a completely zero-fluoroscopy approach guided by the Ensite NavX system. In the case of a drug refractory, life-threatening arrhythmia during pregnancy, catheter ablation may be considered.
authors: Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.
authors: Guangzhi
authors: G
authors: Chen
authors: Ge
authors: G
authors: Sun
authors: Renfan
authors: R
authors: Xu
authors: Xiaomei
authors: X
authors: Chen
authors: Li
authors: L
authors: Yang
authors: Yang
authors: Y
authors: Bai
authors: Shanshan
authors: S
authors: Yang
authors: Ping
authors: P
authors: Guo
authors: Yan
authors: Y
authors: Zhang
authors: Chunxia
authors: C
authors: Zhao
authors: Dao Wen
authors: DW
authors: Wang
authors: Yan
authors: Y
authors: Wang
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000150:complications / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods*; D005260:Female; D005471:Fluoroscopy / Q000379:methods*; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000601:surgery*; D015641:Radiography, Interventional / Q000379:methods*; D055815:Young Adult