title: Advantages and disadvantages of one-stage and two-stage surgery for arrhythmias and Ebstein's anomaly.
abstract: OBJECTIVE
  To evaluate efficacy of one-step and two-step surgery approach in patients with arrhythmias combined with Ebstein's anomaly.
  
  
  METHODS
  Fifty-three patients with Ebstein's anomaly combined with tachyarrhythmias (58.5% men, 41.5% women, mean age 21.6+/-10.7 years) were operated on. In group A (32 patients), one-step surgical correction (simultaneous intraoperative elimination of arrhythmias and congenital heart defect repair) was performed, whereas in group B (21 patients), two-step surgery was performed with initial elimination of arrhythmogenic substrate by transcatheter radiofrequency ablation (first step) and following surgical repair of congenital heart defect (second step).
  
  
  RESULTS
  In group A, total hospital mortality was 3.1% (1 patient) due to initial severe condition of this patient. One-step surgery was effective in 93.5% of cases. Mortality was not observed in group B. Efficacy of transcatheter radiofrequency ablation was 76.2%.
  
  
  CONCLUSIONS
  One-stage and two-stage surgery of arrhythmias and Ebstein's anomaly are highly effective. First step of surgery of combined pathology reduces cardiopulmonary bypass time, complications and mortality while performing the second step of congenital heart defect surgery. However, simultaneous approach (one-step surgery) is better in terms of arrhythmia elimination.
authors.affiliation: Bakoulev Scientific Center for Cardiovascular surgery, Rublevskoe shosse 135, Moscow 121552, Russian Federation. leoan@online.ru
authors.forename: Leo
authors.initials: L
authors.lastname: Bockeria
authors.forename: Elena
authors.initials: E
authors.lastname: Golukhova
authors.forename: Madina
authors.initials: M
authors.lastname: Dadasheva
authors.forename: Amiran
authors.initials: A
authors.lastname: Revishvili
authors.forename: Alexander
authors.initials: A
authors.lastname: Levant
authors.forename: Viacheslav
authors.initials: V
authors.lastname: Bazaev
authors.forename: Farkhat
authors.initials: F
authors.lastname: Rzaev
authors.forename: Tea
authors.initials: T
authors.lastname: Kakuchaya
mesh_terms: D000293:Adolescent; D000328:Adult; D001145:Arrhythmias, Cardiac / Q000150:complications / Q000401:mortality / Q000601:surgery*; D006348:Cardiac Surgical Procedures / Q000379:methods; D017115:Catheter Ablation / Q000379:methods; D002648:Child; D004437:Ebstein Anomaly / Q000150:complications / Q000401:mortality / Q000601:surgery*; D004452:Echocardiography / Q000379:methods; D004562:Electrocardiography / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D013610:Tachycardia / Q000150:complications / Q000401:mortality / Q000601:surgery; D016896:Treatment Outcome; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications / Q000401:mortality / Q000601:surgery