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Methods cavotricuspid isthmus The electrically conductive tissue that separates the inferior vena cava from the tricuspid valve. It is the part of the atrium in which the re-entrant electrical activity of atrial flutter circulates. Cavotricuspid isthmus ablation using a catheter equipped with mini electrodes on the 8 mm tip: a prospective comparison with an 8 mm dumbbell-shaped tip catheter and 8 mm tip cryothermal catheter. Europace. 2016; 18 (6): 868 – 72.

Twelve lead electrocardiogram of counterclockwise cavotricuspid isthmus dependent atrial flutter with a variable ventricular response rate. cavotricuspid isthmus Russell Heath, Joseph Kay, and Duy Thai Nguyen* Electrophysiology, Cardiology Division, University of Colorado, Anschutz Medical Campus, 12401 E. 17th Avenue, B-132, Aurora, CO 80045, USA *Corresponding author. Tel: +1 720 848 0758; fax: +1 720 848 0475, E-mail: duy.t.nguyen@ucdenver.edu Cavotricuspid isthmus-dependent atrial flutter is an arrhythmia that is frequently encountered in the electrophysiology laboratory, and can be successfully ablated with conventional mapping and ablation techniques. In difficult cases, use of intracardiac echo imaging can be invaluable in guiding the ablation.

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Radiofrequency ablation (RFA) is the treatment of choice of cavotricuspid isthmus (CTI)-dependent atrial flutter. Procedural time is highly variable due to anatomical structures.

An approach to catheter ablation of cavotricuspid isthmus

The cavotricuspid isthmus (CTI) had a complex architecture with an anisotropic conduction property.

With the irrigated-tip catheters the complete ablation of the isthmus was achieved with a mean of 8 7 applications (p < 0.001). INTRODUCTION AND OBJECTIVES: The use of intracardiac navigation systems has enabled a significant reduction of the radiation dose in the majority of ablation procedures. The purpose of this study is to evaluate the feasibility and safety of cavotricuspid isthmus ablation without the use of fluoroscopy as a first-line treatment.
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Iwasawa J(1), Miyazaki S(2), Takagi T(2), Taniguchi H(2), Nakamura H(2), Hachiya H(2), Iesaka Y(2). Ablation of Cavotricuspid Isthmus–Dependent Atrial Flutters Abstracts Cavotricuspid isthmus (CTI)-dependent atrial flutter (AFL) is a common atrial arrhythmia, often occurring in association with atrial fibrillation, that may cause significant symptoms because of a rapid ventricular response, and it may cause embolic stroke, and rarely a tachycardia-induced cardiomyopathy. Ablation index (AI) has been evaluated as guidance quality marker for pulmonary vein isolation, but not for linear ablation of the cavotricuspid isthmus (CTI) for typical right atrial flutter (AFL). We thus studied the feasibility and effectiveness of AI‐guided CTI for AFL. Methods 2021-04-20 2019-05-05 A cavotricuspid isthmus (CTI) pouch, a common anatomical anomaly, complicates the creation of a CTI block line for common atrial flutter (cAFL) because ablation within the pouch is difficult. The clinical significance of the pouch for a cAFL circuit has not fully been explained.

However, atrial fibrillation often occurred after ablation of the Maximum electrogram-guided ablation of cavotricuspid isthmus-dependent atrial flutter. Cheng, Tony; Liu, Ying LU; Kongstad Rasmussen, Ole LU; Hertervig, Eva LU and Yuan, Shiwen LU () In Journal of Electrocardiology 46 (6).
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Klinisk prövning på Paroxysmal Atrial Fibrillation - ICH GCP

We thus studied the feasibility and effectiveness of AI-guided CTI for AFL. Cavotricuspid isthmus (CTI)-dependent atrial flutter (AFL) is a common atrial arrhythmia, often occurring in association with atrial fibrillation. It can cause significant symptoms because of a typically rapid ventricular rate, and may cause embolic stroke, and rarely a tachycardia-induced cardiomyopathy. It has been demonstrated that successful cavotricuspid isthmus ablation of typical atrial flutter combined with atrial fibrillation (AF) sometimes influences the preablation history of paroxysmal AF. However, the effectiveness of only isthmus ablation on AF itself is unclear. Se hela listan på ahajournals.org 2019-11-01 · Radiofrequency (RF) catheter ablation of the cavotricuspid isthmus (CTI) in typical or common atrial flutter (AFL) is recommended for patients who are symptomatic or refractory to pharmacologic rate control.

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Klinisk prövning på Paroxysmal Atrial Fibrillation - ICH GCP

2016-09-28 · The aim of this study was to provide useful information about the cavotricuspid isthmus (CTI) and surrounding areas morphology, which may help to plan CTI radio-frequency ablation. We examined 140 autopsied human hearts from Caucasian individuals of both sexes (29.3% females) with a mean age of 49.1±17.2 years. We macroscopically investigated the lower part of the right atrium, the CTI, the Bidirectional cavotricuspid isthmus block was considered to indicate a successful procedure.