Impact of pulmonary vein ovality index on cooling kinetics and acute success of atrial fibrillation ablation with the third-generation cryoballoon catheter

Stachyra, Milena; Szczasny, Marcin; Tarkowski, Adam; Mianowana, Magdalena; Wojewoda, Katarzyna; Wysokińska, Katarzyna; Błaszczak, Piotr; Główniak, Andrzej

doi:10.5114/aic.2021.110927

Cited by 1 publication

(2 citation statements)

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“…The available studies, including our recently published paper, indicate that the presence of common left pulmonary trunk is not a contraindication to cryoballoon ablation [70,71]. In patients with this anatomical variant, similar long-term results were obtained to groups with normal branching [69].…”

Section: Pulmonary Veins Geometrymentioning

confidence: 54%

“…4.). The left-sided pulmonary veins (LSPVs) have higher ovality indice -they are more oval than right-sided pulmonary veins (RSPVs), and the left inferior PV (LIPV) is the most flattened vein [69,70]. Sorgente et al state that the degree of occlusion during cryoballoon PVI is dependent on the ovality index only for LSPVs, and in patients with higher OI on the left side, more frequent AF recurrences were observed following CBA [71].…”

Section: Pulmonary Veins Geometrymentioning

confidence: 99%

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Atrial fibrillation ablation: the position of computed tomography in pre-procedural imaging

Stachyra

Główniak

Czekajska-Chehab

2022

Current Issues in Pharmacy and Medical Sciences

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Atrial fibrillation (AF) is the most common supraventricular arrhythmia. Despite significant advances in its treatment, it still remains one of the leading causes of cardiovascular morbidity and mortality. In the last two decades, pulmonary vein isolation (PVI) was developed as the most effective treatment option. The reported effectiveness of a single ablation procedure ranges from 40% to 69% with single, and up to 88% with repeated procedures, with acceptable safety profile. The PubMed database was searched, using terms including ‘atrial fibrillation ablation’, ‘pulmonary vein isolation’, ‘computed tomography’, ‘pulmonary vein anatomy’ and ‘ovality index’. Papers were reviewed for relevance and scientific merit. Different imaging techniques are used for pre-procedural assessment of left atrial (LA) anatomy, of which computed tomography (CT) is the most common. It allows assessing pulmonary vein (PV) anatomy, the LA wall thickness in different regions and the left atrial appendage (LAA) anatomy, together with excluding the presence of intracardiac thrombi. Pre-procedural PVs imaging is important regardless of the selected ablation technique, however, cryoballoon (CB) ablation seems to be particularly anatomy-dependent. Additionally, CT also permits assessment of several PVs characteristics (geometry, dimensions, angulations, the ostium area, orientation and ovality index (OI), which are essential for the patients’ qualification and designing the strategy of AF ablation. In this paper, we have reviewed the role of CT imaging in patients undergoing ablation procedure due to recurrent/symptomatic atrial fibrillation. Moreover, we discussed the relevant literature.

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Section: Pulmonary Veins Geometrymentioning

confidence: 54%