Restoration of Mechanical Atrial Function after Electrical Cardioversion of Chronic Atrial Fibrillation in Patients after Surgical Treatment of Mitral Valve Disease – Hemodynamic Effects and Prognostic Value of Maintenance of Sinus Rhythm

Cardiology ◽  
1996 ◽  
Vol 87 (2) ◽  
pp. 98-103 ◽  
Author(s):  
Andrzej Szyszka ◽  
Olga Trojnarska ◽  
Lech Paluszkiewicz ◽  
Andrzej Cieśliński ◽  
Aleksy Poniżyński
Keyword(s):  
Atrial Fibrillation ◽  
Surgical Treatment ◽  
Mitral Valve ◽  
Sinus Rhythm ◽  
Mitral Valve Disease ◽  
Prognostic Value ◽  
Chronic Atrial Fibrillation ◽  
Atrial Function ◽  
Valve Disease ◽  
Hemodynamic Effects

A modified maze procedure performed only on the left atrium for chronic atrial fibrillation associated with mitral valve disease: Report of a case

Surgery Today ◽  
1996 ◽  
Vol 26 (2) ◽  
pp. 135-137 ◽  
Author(s):  
Taijiro Sueda ◽  
Hiroo Shikata ◽  
Kazumasa Orihashi ◽  
Norimasa Mitsui ◽  
Hideyuki Nagata ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Mitral Valve ◽  
Left Atrium ◽  
Mitral Valve Disease ◽  
Chronic Atrial Fibrillation ◽  
Valve Disease ◽  
Maze Procedure

P383Epicardial voltage fingerprinting of sinus rhythm in patients with mitral valve disease

EP Europace ◽  
2020 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
M S Van Schie ◽  
R Starreveld ◽  
M C Roos-Serote ◽  
A J J C Bogers ◽  
N M S De Groot
Keyword(s):  
Atrial Fibrillation ◽  
Mitral Valve ◽  
Sinus Rhythm ◽  
Mitral Valve Disease ◽  
Low Voltage ◽  
Electrical Signal ◽  
Valve Disease ◽  
Related Factors ◽  
Peak Voltage ◽  
Conduction Disorders

Abstract Funding Acknowledgements CVON-AFFIP [grant number 914728], NWO-Vidi [grant number 91717339], Biosense Webster USA [ICD 783454] and Medical Delta Background Voltage mapping is increasingly used for identifying the substrate of cardiac arrhythmias like atrial fibrillation (AF). Low bipolar voltage areas are regarded as indicators of structurally remodeled tissue. However, non-substrate related factors such as wavefront activation direction also influence voltages of bipolar EGMs. Unipolar electrograms (U-EGMs), on the other hand, are independent of the electrode orientation and atrial wavefront direction. It is for these reasons that U-EGMs are increasingly used in electrophysiological studies and newly developed mapping systems guiding ablation procedures. Objective The goal of this study is to examine U-EGM voltages at a high resolution scales during sinus rhythm (SR) in patients with mitral valve disease (MVD). Methods Intra-operative epicardial mapping (interelectrode distance 2mm) of the right and left atrium (RA, LA), Bachmann’s Bundle (BB) and pulmonary vein area (PVA) was performed during SR in 67 patients (27 male, 67 ± 11 years) with or without a history of paroxysmal atrial fibrillation (PAF). U-EGMs were analyzed according to their potential type and peak-to-peak voltage. Low voltage was defined as the proportion of potentials with an amplitude below 1.0 mV. Results In all patients, there was a considerable variation in voltage distribution between all atrial regions and clear inter-individual differences were found. In patients without AF, there were no statistical differences in median potential voltages between the various atrial regions (P = 0.869). In the PAF group, however, unipolar voltages of BB potentials were lower compared to RA potentials (3.30 [2.25–4.57] mV vs. 4.64 [3.85–6.08] mV, P = 0.006) and LA potentials (3.30 [2.25–4.57] mV vs. 4.86 [3.72–5.86] mV, P = 0.009). In addition, unipolar voltages at BB were lower in the patients with PAF compared to those without AF (no AF: 4.94 [3.56–5.98] mV, PAF:  3.30 [2.25–4.57] mV, P = 0.006). A larger number of low voltage potentials were recorded at BB in the PAF group (no AF: 2.13 [0.52–7.68] %, PAF: 12.86 [3.18–23.59] %, P = 0.001). In addition, a higher number of fractionated potentials was found in patients with PAF at the PVA (12.81 [9.19–18.03] % vs. 20.94 [13.54–27.37] %, P < 0.001) and LA (11.47 [7.30–18.30] % vs. 17.80 [12.93–21.34] %, P = 0.045). Lower voltages were found in potentials with a progressively higher degree of fractionation (R=-0.76, P < 0.001). Conclusions Even in SR, patients with MVD and AF episodes are characterized by decreased potential voltages at BB and a higher degree of low voltage potentials. Both considerable intra- and inter-individual variation in potential voltages were found in our study population, which underlines the interest of an individualized electrical signal profile which can be used to characterize complex conduction disorders. Abstract Figure. Epicardial voltage maps

Pulmonary Vein Isolation for Chronic Atrial Fibrillation Associated with Mitral Valve Disease.

2001 ◽  
Vol 30 (3) ◽  
pp. 122-125
Author(s):  
Hiroyuki Tanaka ◽  
Kazuhiro Suzuki ◽  
Takashi Narisawa ◽  
Takashi Suzuki ◽  
Toshihiro Takaba
Keyword(s):  
Atrial Fibrillation ◽  
Mitral Valve ◽  
Pulmonary Vein ◽  
Pulmonary Vein Isolation ◽  
Mitral Valve Disease ◽  
Chronic Atrial Fibrillation ◽  
Valve Disease
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