title: [Chronic nonparoxysmal supraventricular tachycardia in children and adolescents].
abstract: An examination was performed in 111 children and adolescents with recurrent and sustained chronic nonparoxysmal tachycardias (CNPT). ECG and electrophysiological studies showed that ante- and retrograde conduction along the accessory atrioventricular junction was the most common mechanisms of arrhythmia. Holter monitoring revealed a high rigidity of cardiac rhythm in patients with sustained CNPT. Criteria for the development of arrhythmogenic cardiac dilatation were developed. In recurrent CNPT, there was a correlation between the paroxysms of ECG slow-wave activity and the "salvos" of tachycardia and a predominance of vagal effects on the heart. A new approach to the treatment of children with CNPT was proposed, which involved the correction of pathogenetic mechanisms. Indications for the usage of antiarrhythmic agents such as cordarone and a cardiac surgeon's advice were formulated. The efficiency of the therapy was achieved in 82% of the children as shown by a follow-up.
authors.forename: N A
authors.initials: NA
authors.lastname: Belokon'
authors.forename: M A
authors.initials: MA
authors.lastname: Shkol'nikova
authors.forename: Iu M
authors.initials: IuM
authors.lastname: Belozerov
authors.forename: L M
authors.initials: LM
authors.lastname: Makarov
authors.forename: S B
authors.initials: SB
authors.lastname: Shvarkov
mesh_terms: D000293:Adolescent; D000367:Age Factors; D000638:Amiodarone / Q000627:therapeutic use; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D004562:Electrocardiography; D015716:Electrocardiography, Ambulatory; D005260:Female; D005500:Follow-Up Studies; D006339:Heart Rate; D006801:Humans; D008297:Male; D012737:Sex Factors; D013617:Tachycardia, Supraventricular / Q000188:drug therapy / Q000453:epidemiology* / Q000503:physiopathology; D013997:Time Factors
chemical_list: D000889:Anti-Arrhythmia Agents; D000638:Amiodarone
vernacular_title: Khronicheskaia neparoksizmal'naia supraventrikuliarnaia takhikardiia u deteĭ i podrostkov.