title: [Echocardiographic parameters in patients with Wolf-Parkinson-White syndrome before and during one year after radiofrequency catheter ablation of accessory atrioventricular junction].
abstract: We present in this paper results of assessment of morphofunctional state of myocardium in patients with the Wolf-Parkinson-White syndrome before and during one year after radiofrequency catheter ablation (RFA) of accessory atrioventricular junction (AAVJ) and comparison of them with analogous parameters of the group of healthy volunteers as well as in dependence on electrophysiological properties of AAVJ and its localization. One hundred sixty patients took part in the conducted study: main group comprised 160 patients (80.7%) with WPW syndrome (114 men [81.4%], 26 women [18.6%], mean age 39.5+/-15.3 years), comparison group comprised 20 practically healthy persons (15 men [75.0%], 5 women [25%], mean age 41.9+/-5.3 years). All main group patients were subjected to endocardial electrophysiological investigation and RFA of AAVJ. Transthoracic echocardiography (EchoCG) was carried out in patients of main group before and in 2, 6, and 12 months after operation of RFA of AAVJ, and once in control group. Analysis of parameters of central hemodynamics according to data of transthoracic EchoCG in patients with WPW syndrome before RFA of AAVJ demonstrated that before conduct of operative intervention no significant differences were revealed in the studied parameters compared with analogous characteristics of the clinical comparison group. During whole period of dynamic observation (2, 6, and 12 months after fulfilled RFA of AAVJ) in patients with WPW syndrome the studied parameters of central hemodynamics did not undergo substantial changes compared with initial characteristics. We failed to establish significant differences of EchoCG parameters in patients with WPW syndrome in dependence on electrophysiological properties of AAVJ (concealed, manifest) and on AAVJ localization (right, left, septal). According to EchoCG data in patients with WPW syndrome so called "minor" anomalies of development of connective tissue of the heart were diagnosed in 69 (49.3%) patients while in control group - in 2 (10%) patients.
authors: Iu N
authors: IuN
authors: Belenkov
authors: M S
authors: MS
authors: Rybachenko
authors: E G
authors: EG
authors: Zheliakov
authors: A V
authors: AV
authors: Konev
authors: A V
authors: AV
authors: Ardashev
authors: T D
authors: TD
authors: Butaev
mesh_terms: D000328:Adult; D001283:Atrioventricular Node / Q000473:pathology / Q000503:physiopathology / Q000528:radiation effects*; D017115:Catheter Ablation / Q000009:adverse effects*; D004452:Echocardiography; D004562:Electrocardiography; D017050:Episode of Care; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology*; D011788:Quality of Life; D013997:Time Factors; D016896:Treatment Outcome; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy