Successful Ablation of Cavotricuspid Isthmus-dependent Atrial Flutter Guided by Contact Force Vector in a Patient After a Tricuspid Valve Replacement
نویسندگان
چکیده
A 46-year-old man after a tricuspid valve replacement due to traumatic severe tricuspid regurgitation developed cavotricuspid isthmus-dependent counterclockwise atrial flutter. During a linear ablation using a contact force-sensing irrigated ablation catheter, the flutter could be terminated by a radiofrequency application within a deep pouch just below the bioprosthetic tricuspid valve.
منابع مشابه
Subvalvular catheter ablation of the cavotricuspid isthmus in a patient with Ebstein's anomaly and tricuspid valve replacement
Introduction Ebstein’s anomaly (EA) is a congenital malformation of the tricuspid valve that often requires tricuspid valve replacement (TVR). EA patients have a high burden of atrial tachycardia owing to a combination of prior surgical incisions and abnormal atrial hemodynamics. Catheter ablation for atrial tachycardia, especially when the cavotricuspid isthmus (CTI) is a critical component of...
متن کاملRadiofrequency catheter ablation of common-type atrial flutter guided by conventional versus electroanatomical mapping.
Radiofrequency catheter (RF) ablation aiming the complete conduction block of the cavotricuspid isthmus has become treatment of choice for common type atrial flutter. Different approaches to guide the ablation procedure are used. For the conventional approach multipolar catheters in the right atrium and in the coronary sinus are required to detect the induction of conduction block via the isthm...
متن کامل[Lesions produced by radiofrequency ablation of the cavotricuspid isthmus in an experimental model].
INTRODUCTION AND OBJECTIVES Experimental studies have shown that deeper and wider lesions (up to 10 mm long or deep) can be safely created using an 8 mm or irrigated tip catheter for ablation to treat atrial flutter. However, potential damage to the tricuspid valve or inferior cava vein has not been systematically evaluated. PATIENTS AND METHOD The cavotricuspid isthmus was ablated in 26 pigs...
متن کاملPartial cavotricuspid isthmus block before ablation in patients with typical atrial flutter.
OBJECTIVES The purpose of this study was to prospectively evaluate preexisting partial isthmus block in the context of an electrophysiologically directed linear ablation strategy for typical atrial flutter (AF). BACKGROUND Double potentials (DPs) separated by an isoelectric interval have been recognized as markers of local block. However, the presence and significance of DPs in the cavotricus...
متن کاملElectrogram polarity and cavotricuspid isthmus block during ablation of typical atrial flutter.
INTRODUCTION The atrial activation sequence around the tricuspid annulus has been used to assess whether complete block has been achieved across the cavotricuspid isthmus during radiofrequency ablation of typical atrial flutter. However, sometimes the atrial activation sequence does not clearly establish the presence or absence of complete block. The purpose of this study was to determine wheth...
متن کامل