Catheter Ablation of the Superolateral Mitral Isthmus Line:
网页2017年10月10日 · The mitral isthmus is a critical part of perimitral reentrant tachycardia, as well as an important substrate of persistent atrial fibrillation. Deployment of an endocardial mitral isthmus line (MIL) with the end point of bidirectional block may be challenging and often requires additional epicardial ablation within the coronary sinus.
网页The mitral isthmus is a part of the postero-inferior area of the lateral left atrial wall located between the mitral annulus and the left inferior pulmonary vein ostium. Linear ablation lesions are created within the mitral isthmus for the invasive treatment of left atrial arrhythmias. However, the anatomy of this region is not fully understood.
A Review of Mitral Isthmus Ablation - PMC - National Center for ...
网页2012年7月28日 · It then describes the practical techniques of mitral isthmus ablation, with particular emphasis on the assessment of bi-directional mitral isthmus block. The anatomy of the mitral isthmus is also discussed in order to understand the possible obstacles to successful ablation.
Anatomic characteristics of the mitral isthmus region: The left …
网页2017年3月1日 · The mitral isthmus is a part of the postero-inferior area of the lateral left atrial wall located between the mitral annulus and the left inferior pulmonary vein ostium. Linear ablation lesions are created within the mitral isthmus for the invasive treatment of left atrial arrhythmias. However, the anatomy of this region is not fully understood.
Left Atrial Anatomy Revisited | Circulation: Arrhythmia and ...
网页2012年2月1日 · The left atrium has a distinctive appendage that is a finger-like pouch extending from the main body of the atrium. The main body then comprises of the pulmonary venous portion, the septal portion, and the vestibule, which is the outlet part of the atrial chamber surrounding the mitral orifice.
Mitral isthmus ablation: A hierarchical approach guided by ...
网页2018年10月9日 · Mitral isthmus ablation is an established technique used to treat perimitral atrial flutter. The classic approach involves creating an ablation line connecting the left inferior pulmonary vein (LIPV) to the lateral mitral annulus. 1 Its feasibility was first prospectively studied by Jais et al, 1 who reported a high rate of bidirectional block.
Simplified stepwise anatomical ablation strategy for mitral isthmus ...
网页2022年11月10日 · Bidirectional and durable block of mitral isthmus (MI) is essential for catheter ablation of persistent atrial fibrillation (PeAF) and perimitral flutter (PMF), but it remains a challenge. The aim of this study was to create a simple anatomical ablation strategy with minimal fluoroscopy that would yield a high success rate for MI block.
Anatomic characteristics of the mitral isthmus region: The left …
网页2017年3月1日 · This article reviews recent morphological studies about the pulmonary venous ostia, the myocardial sleeves of the pulmonary veins, the mitral isthmus, the left atrial appendage isthmus, the left atrial medial isthmus and the other left atrial isthmuses together with spatial relationships of blood vessels within the isthmus lines.
Impact of Technique and Technology on Mitral Isthmus Ablation
网页2019年7月25日 · Mitral isthmus ablation is an established strategy in the treatment of peri-mitral atrial flutter and as an adjunct to pulmonary vein isolation. The objective of this review is to summarize the techniques and specific strategies that allow for increased success and durability of mitral isthmus ablation.
(PDF) Muscular architecture of the mitral isthmus: Anatomical ...
网页2012年6月7日 · The mitral isthmus line remains the most common target for linear ablation adjunct to pulmonary vein isolation in patients with nonparoxysmal atrial fibrillation and for treating left atrial...
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