Кореспондиращ автор: Васил Трайков ( vtraykov@yahoo.com ) Академик редактор: Красимир Джинсов © Васил Трайков, Чавдар Шалганов, Любомир Димитров, Анна Kънева, Стоян Лазаров, Добри Добрев, Валери Гелев. Това е статия отворен достъп разпространява под условията на Creative Commons Attribution License (CC BY 4.0), която позволява използване без ограничения, разпространение, и възпроизвеждане на всякакъв носител, при условие на оригиналния автор и източник са кредитирани. Цитат:
Трайков В, Шалганов Ч, Димитров Л, Kънева А, Лазаров С, Добрев Д, Гелев В (2021) Катетърна аблация на макрориентри предсърдни тахикардии с транскондуитен достъп при пациент с тотална кавопулмонална анастомоза с екстракардиален кондуит. Българска Кардиология 27(3): 113-122. https://doi.org/10.3897/bgcardio.27.e71009 |
Corresponding author: Vassil Traykov ( vtraykov@yahoo.com ) Academic editor: Krasimir Dzhinsov © Vassil Traykov, Tchavdar Shalganov, Lyubomir Dimitrov, Anna Kaneva, Stojan Lazarov, Dobri Dobrev, Valeri Gelev. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Citation:
Traykov V, Shalganov T, Dimitrov L, Kaneva A, Lazarov S, Dobrev D, Gelev V (2021) Catheter ablation of macroreentrant atrial tachycardias following transconduit puncture access in a patient after total cavopulmonary connection with an extracardiac conduit. Bulgarian Cardiology 27(3): 113-122. https://doi.org/10.3897/bgcardio.27.e71009 |
We present the case of a 23-year-old male diagnosed with a complex congenital heart disease (with single ventricle physiology) which necessitated many surgical interventions including total cavopulmonary connection. The patient presents with recurrent (almost daily) highly symptomatic atrial tachycardia with rapid ventricular rate and poor haemodynamic tolerance. Due to failure of antiarrhythmic drug therapy the patient was referred for catheter ablation. Atrial access was provided following transconduit puncture with a standard transseptal set. Crossing to the atrium with the transseptal introducer was not successful due to resistance from the conduit and the atrial wall. Therefore, balloon dilation of the puncture using a cutting balloon was carried out which resulted in easy crossing to the atrium with a steerable transseptal introducer. Several atrial tachyarrhythmias were induced two of which allowed mapping demonstrating a macroreentrant tachycardia dependent on the cavoannular isthmus as well as a complex figure-of-eight circuit involving right pulmonary veins and the right atrial appendage. Linear lesions transecting the critical isthmuses of the two circuits were delivered which rendered the patient noninducible. During a 9-month follow-up period the patient remained arrhythmia free.