Successful Catheter Ablation for Multiple Atrial Arrhythmias in a Patient with Situs Inversus Totalis.

Successful Catheter Ablation for Multiple Atrial Arrhythmias in a Patient with Situs Inversus Totalis. Intern Med. 2020 Oct 07;: Authors: Tsujioka S, Nozoe M, Kawano Y, Suematsu N, Kubota T Abstract A 70-year-old woman with situs inversus totalis underwent catheter ablation for atrial fibrillation and atrial flutter. Although her morphologic left atrium (LA) was enlarged, we performed cryoballoon ablation and liner radiofrequency ablation of the cava-tricuspid isthmus without mapping atrial arrhythmias. However, a different form of atrial tachycardia (AT) recurred. We performed catheter ablation a second time using a three-dimensional electroanatomic mapping system. AT was not terminated by the liner ablation at the roof of morphologic LA and mitral isthmus but sustained by changing the atrial activation sequence and cycle length. Multipolar mapping catheter revealed that fractionated low-amplitude potentials were densely located in a limited area of the anterior morphologic LA, and an activation map demonstrated the presence of small-circuit reentry with an extremely slow conduction at the anterior morphologic LA. A single energy application targeting the fragmented potentials successfully terminated the AT. We successfully treated multiple ATs with a complex anatomy using a three-dimensional electroanatomic mapping system. PMID: 33028769 [PubMed - as supplied by publisher]
Source: Internal Medicine - Category: Internal Medicine Tags: Intern Med Source Type: research

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Source: Dr. Smith's ECG Blog - Category: Cardiology Authors: Source Type: blogs
Authors: Wang Z, Korantzopoulos P, Roever L, Liu T Abstract Atrial fibrillation (AF) is the most frequent arrhythmia encountered in clinical practice and is a major health problem associated with remarkable morbidity, mortality and has considerable healthcare costs. Red blood cell distribution width (RDW) reflects the heterogeneity of the volume and size of red blood cells. It is an easily measured and inexpensive index that has been associated with several cardiovascular disease states. Accumulating evidence suggests that RDW is a prognostic marker of AF in various clinical settings. In this article, we review the...
Source: Future Medicine: Biomarkers in Medicine - Category: Internal Medicine Tags: Biomark Med Source Type: research
Condition:   Atrial Fibrillation Intervention:   Other: diagnostic strategy using ECGI Sponsors:   Felipe Atienza;   Universitat Politècnica de València Recruiting
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AbstractObjectiveTo compare multiple ‐procedure catheter ablation outcomes of a stepwise approach versus left atrial posterior wall isolation (LA PWI) in patients undergoing non‐paroxysmal atrial fibrillation (NPAF) ablation.BackgroundUnfavorable outcomes for stepwise ablation of NPAF in large clinical trials may be attributable to pro ‐arrhythmic effects of incomplete ablation lines. It is unknown if a more extensive initial ablation strategy results in improved outcomes following multiple ablation procedures.Methods222 consecutive patients with NPAF underwent first ‐time ablation using a contact‐force sensing a...
Source: Journal of Cardiovascular Electrophysiology - Category: Cardiology Authors: Tags: ORIGINAL ‐ ELECTROPHYSIOLOGY Source Type: research
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Source: Polish Heart Journal - Category: Cardiology Authors: Tags: Kardiol Pol Source Type: research
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Source: Journal of Cardiovascular Electrophysiology - Category: Cardiology Authors: Tags: ORIGINAL ARTICLES Source Type: research
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