title: [Comparison of Doppler echocardiographic parameters before and after ablation in Wolff-Parkinson-White syndrome patients with and without atrial fibrillation].
abstract: OBJECTIVE
  We compared Doppler echocardiographic features before and after radiofrequency catheter ablation (RFCA) performed for Wolff-Parkinson-White (WPW) syndrome in patients with and without atrial fibrillation (AF).
  
  
  METHODS
  Forty patients with WPW syndrome were evaluated in two groups depending on the presence of AF (6 females, 14 males; mean age 33+/-15 years) and atrioventricular reciprocating tachycardia (AVRT) (8 females, 12 males; mean age 32+/-18 years). Echocardiographic examination was performed in all the patients 24 hours before and after RFCA. Doppler parameters were recorded including E and A transmitral filling velocities and their velocity-time integrals (VTI), mitral diastolic filling time (mDFT), deceleration time, isovolumic contraction and relaxation times, aortic ejection time (ET) and aortic VTI.
  
  
  RESULTS
  The most common localization of the accessory pathway was the left lateral wall (n=9) in patients with AF, compared to one patient in the AVRT group. During programmed electrical stimulation, orthodromic AVRT was induced in all the patients with AVRT; of the AF group, six patients had AF and 14 patients exhibited AVRT that degenerated into AF. The two groups did not differ significantly before and after RFCA with regard to two-dimensional and Doppler echocardiographic parameters (p>0.05). Significant changes observed in both groups after RFCA were as follows: increases in A velocity and A wave VTI (p<0.05), decrease in the E/A ratio (p<0.05), prolongation of mDFT (p<0.001), and shortening of aortic ET (p<0.01). Following the procedure, preexcitation disappeared in all the patients and none had tachyarrhythmia.
  
  
  CONCLUSIONS
  There were no echocardiographic parameters associated with AF in patients with WPW syndrome.
authors.affiliation: Dr Siyami Ersek Göğüs Kalp ve Damar Cerrahisi Eğitim ve Araştirma Hastanesi Kardiyoloji Kliniği, Istanbul, Turkey. nazcakmak@gmail.com
authors.forename: Nazmiye
authors.initials: N
authors.lastname: Cakmak
authors.forename: Ahmet
authors.initials: A
authors.lastname: Akyol
authors.forename: Nurten
authors.initials: N
authors.lastname: Sayar
authors.forename: Ahmet Taha
authors.initials: AT
authors.lastname: Alper
authors.forename: Hakan
authors.initials: H
authors.lastname: Hasdemir
authors.forename: Abdurrahman
authors.initials: A
authors.lastname: Eksik
authors.forename: Hale
authors.initials: H
authors.lastname: Yilmaz
authors.forename: Aleks
authors.initials: A
authors.lastname: Değirmencioğlu
authors.forename: Izzet
authors.initials: I
authors.lastname: Erdinler
authors.forename: Kadir
authors.initials: K
authors.lastname: Gürkan
mesh_terms: D000328:Adult; D001021:Aortic Valve / Q000000981:diagnostic imaging / Q000503:physiopathology; D001281:Atrial Fibrillation / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D001783:Blood Flow Velocity / Q000502:physiology; D017115:Catheter Ablation / Q000379:methods; D015150:Echocardiography, Doppler / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D014927:Wolff-Parkinson-White Syndrome / Q000000981:diagnostic imaging* / Q000601:surgery*