Physical justification of an increase in the efficacy of radiofrequency systems for myocardial ablation

A. V. Evtushenko, V. V. Evtushenko, A. N. Bykov, V. S. Sergeev, V. I. Syryamkin, Yu V. Kistenev, Y. Anfinogenova

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

The article presents data on dependence of the myocardial electrical impedance on the temperature. These data have high clinical relevance because radio frequency energy-induced destruction of the myocardium in the course of surgical treatment of cardiac arrhythmias should be performed transmurally. Insufficient transmural myocardial damage results in recurrence of cardiac arrhythmias. Therefore, achieving transmural treatments of the myocardium is of high significance. Studies were performed using 20 isolated hearts. To evaluate the effectiveness of radio frequency exposure, we studied two temperature settings: myocardial normothermia (36. 6 °C) and myocardial hypothermia (20 °C). The depth of destruction as well as the temperatures of the epicardial, endocardial, and intramural myocardium at the points of impact were estimated. Data showed that lower temperature decreases tissue electrical impedance and results in a greater depth of damage.

Язык оригиналаАнглийский
Название основной публикацииHigh Technology: Research and Applications, 2015
ИздательTrans Tech Publications Ltd
Страницы432-435
Число страниц4
Том685
ISBN (печатное издание)9783038357087
DOI
СостояниеОпубликовано - 2016
Событие4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015 - Tomsk, Российская Федерация
Продолжительность: 21 апр 201524 апр 2015

Серия публикаций

НазваниеKey Engineering Materials
Том685
ISSN (печатное издание)10139826

Конференция

Конференция4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015
СтранаРоссийская Федерация
ГородTomsk
Период21.4.1524.4.15

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Цитировать

    Evtushenko, A. V., Evtushenko, V. V., Bykov, A. N., Sergeev, V. S., Syryamkin, V. I., Kistenev, Y. V., & Anfinogenova, Y. (2016). Physical justification of an increase in the efficacy of radiofrequency systems for myocardial ablation. В High Technology: Research and Applications, 2015 (Том 685, стр. 432-435). (Key Engineering Materials; Том 685). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.685.432