Open AccessAssessment of the potential damaging effect of radiofrequency exposure in children in prospective follow-up (case report series)
Author(s) -
O. Yu. Dzhaffarova,
Л. И. Свинцова,
И. В. Плотникова,
С. Н. Криволапов,
E. O. Kartofeleva
Publication year - 2020
Publication title -
sibirskij žurnal kliničeskoj i èksperimentalʹnoj mediciny
Language(s) - English
Resource type - Journals
eISSN - 2713-2927
pISSN - 2713-265X
DOI - 10.29001/2073-8552-2020-35-3-116-124
Subject(s) - radiofrequency ablation , medicine , ablation , intracardiac injection , coagulative necrosis , prospective cohort study , tachycardia , cardiology , ventricular tachycardia , nuclear medicine , radiology , surgery
Aim: To evaluate the electrical activity of the myocardium and the radiofrequency (RF) application zone resulting from radiofrequency ablation (RFA) performed at an early age. Material and Methods. A prospective follow-up study included three patients who underwent intracardiac electrophysiological study (EPS) and effective RFA of the tachycardia for the first time at an early age. A reintervention was required in one case 12 years after the procedure and in two cases six years after it due to recurrent and new-onset arrhythmias. During the reintervention, electroanatomical mapping was performed to assess the potential damaging effect of radiofrequency exposure in the area of the first ablation. Results. The intracardiac EPS and amplitude bipolar CARTO-reconstruction of primary ablation area were performed during repeated RFA procedure. The study showed that neither zones with a decrease in the amplitude of electrical signal from the myocardium nor silent electrical zones were present ruling out the cicatricial-sclerotic changes in the myocardium in children in the long-term period after RF exposure. Conclusion. The study showed that no increase in the coagulation necrosis zone in the area of primary ablation occurred during the growth of child when the sparing energy and temperature parameters of RFA and the limited number of RF applications were used. Further research in this area is required.