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Pediatrisk förmaksfladder-Pediatrisk medicin-Pediatrics

Italia. Italian. italic mitral. mitre. mitrewort.

Mitral isthmus ablation

CSd 5 coronary sinus distal; CSp 5 coronary sinus proximal; LS 5 PentaRay catheter located in the left atrial appendage. Flautt et al Left Atrial ICE Guiding Mitral Isthmus Ablation 81 Mitral Isthmus Ablation Line Reconnections Are Common and Predicts Mitral Annular Dependent Flutters Following Pulmonary Vein Isolations for Atrial Fibrillation December 2011 Journal of Arrhythmia Background: 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. Background: Epicardiac conduction via the vein of Marshall (VOM) can bypass the mitral isthmus (MI) line, making MI ablation difficult. This study aimed to assess the contribution of the VOM in achieving MI conduction block. 1995-12-15 · CONCLUSIONS: The mitral isthmus contains a critical region of slow conduction in some patients with ventricular tachycardia after inferior myocardial infarction, providing a vulnerable and anatomically localized target for catheter ablation. At 1 year after the last procedure, 87 patients with mitral isthmus ablation and 69 without (P=0.002) were arrhythmia free without antiarrhythmic drugs, mitral isthmus ablation being the only Compared with conventional ablation that targets the inferolateral aspect of the mitral isthmus, the herein described novel approach demonstrated (1) a borderline significant higher success rate to achieve bidirectional mitral isthmus blockade (98.2% versus 87.7%; P=0.06), (2) a significant reduction in the need for epicardial ablation from within the CS (7.0% versus 71.9%; P<0.001), and (3) an associated higher risk of pericardial tamponade (5.2% versus 0%; P=0.24).

All patients had circumferential pulmonary vein isolation (PVI), roof, and MI ablation. Subsequently, linear ablation of a left atrial roof and the mitral isthmus (MI) was performed. The MI ablation was applied from the 4 o’clock direction of the mitral annulus (MA) to the left-side pulmonary vein bottoms, and further radiofrequency applications were delivered within the coronary sinus (CS) opposite of the endocardial MI line.

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We aimed to assess the benefit of RF 2021-04-05 2019-11-01 2015-12-23 Background: Epicardiac conduction via the vein of Marshall (VOM) can bypass the mitral isthmus (MI) line, making MI ablation difficult. This study aimed to assess the contribution of the VOM in achieving MI conduction block. 2015-07-01 Mitral isthmus (MI) ablation is challenging.

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Atrial Fibrillation/physiopathology Objectives: This study sought to compare efficacy and safety of the septal mitral isthmus line (SMIL) with that of the lateral mitral isthmus line (LMIL) for treatment of mitral annular flutter (MAF).

functional capacity in mitral regurgitation: physiologic and outcome implications. J Am Coll Ablation är en effektiv och säker behandling av förmaksfladder för symtomatiska patienter (gott isthmus: a meta-analysis. Pacing and clinical (författare); Microwave ablation in mitral valve surgery for atrial fibrillation An approach to catheter ablation of cavotricuspid isthmus dependent atrial flutter Maximum electrogram-guided ablation of cavotricuspid isthmus-dependent atrial flutter.
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Mitral isthmus thickness predicted ablation failure with a ROC area of 0.84. The best threshold to predict MI ablation failure was 8.3 mm with a sensitivity of 67% and a specificity of 97%.

Methods: This single-center, prospective, matched control study included 45 patients who underwent atrial fibrillation ablation using a remote RCS compared to 45 patients who underwent conventional ablation. Subsequently, linear ablation of a left atrial roof and the mitral isthmus (MI) was performed. The MI ablation was applied from the 4 o’clock direction of the mitral annulus (MA) to the left-side pulmonary vein bottoms, and further radiofrequency applications were delivered within the coronary sinus (CS) opposite of the endocardial MI line.
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The 2 most common lesion sets for 2014-07-01 · Mitral isthmus ablation is an important component of catheter ablation for persistent atrial fibrillation and mitral isthmus dependent flutters. We describe a case where mitral isthmus ablation caused a fistula between the left circumflex artery and the left atrium and symptomatic ischaemia. The fistula was successfully closed with a covered stent.

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Fetal Echocardiography and Pulsed-wave Doppler Ultrasound

Discussion Cardiac surgeons were the pioneers of curative ablation of atrial fibrillation (AF). Since the 80’s, when Cox and colleagues introduced the LA isolation pro- An anterior ablation line, connecting the right upper pulmonary vein with anterior mitral annulus, including the scar area, was acomplished in 73% (n=11). In 82% of these (n=9), conversion to sinus rhythm (SR) was obtained with the first RF ablation set; effective mitral isthmus block (MIB) was achieved in all except 1 (technical limitations). 2015-08-25 Mitral isthmus ablation forms part of the electrophysiologist’s armoury in the catheter ablation treatment of atrial fibrillation. It is well recognised however, that mitral isthmus ablation is technically challenging and incomplete ablation may be pro-arrhythmic, leading some to question its role. Because of the unstable catheter contact during mitral isthmus ablation, a deflectable long sheath is often used during the procedure. Some cases require epicardial ablation in the CS opposite the endocardial line to achieve a complete mitral isthmus block.

Yale University School of Medicine Section of Cardiovascular

It is well recognised however, that mitral isthmus ablation is ablation of a mitral isthmus (MI) atrial ﬂutter. Case report A 73-year-old man with paroxysmal atrial ﬁbrillation under-went catheter ablation.

Mitral isthmus ablation: A hierarchical approach guided by electroanatomic correlation. Pathik B(1), Choudry S(1), Whang W(1), D'Avila A(1), Koruth J(1), Sofi A(1), Miller MA(1), Dukkipati S(1), Reddy VY(2).