Nonlinear Pattern Analysis of Ventricular Premature Beats by Mutual Information

1997 ◽  
Vol 36 (04/05) ◽  
pp. 257-260 ◽  
Author(s):  
H. Saitoh ◽  
T. Yokoshima ◽  
H. Kishida ◽  
H. Hayakawa ◽  
R. J. Cohen ◽  
...  
Keyword(s):  
Mutual Information ◽  
Temporal Pattern ◽  
Pattern Analysis ◽  
Autonomic Activity ◽  
Correlation Measure ◽  
Ventricular Premature Beats ◽  
Risk Of Mortality ◽  
Premature Beats ◽  
Information Values ◽  
Nonlinear Pattern

Abstract:The frequency of ventricular premature beats (VPBs) has been related to the risk of mortality. However, little is known about the temporal pattern of occurrence of VPBs and its relationship to autonomic activity. Hence, we applied a general correlation measure, mutual information, to quantify how VPBs are generated over time. We also used mutual information to determine the correlation between VPB production and heart rate in order to evaluate effects of autonomic activity on VPB production. We examined twenty subjects with more than 3000 VPBs/day and simulated ran-( dom time series of VPB occurrence. We found that mutual information values could be used to characterize quantitatively the temporal patterns of VPB generation. Our data suggest that VPB production is not random and VPBs generated with a higher value of mutual information may be more greatly affected by autonomic activity.

Ventricular premature beats in young subjects without evidence of cardiac disease: histological findings

1992 ◽  
Vol 13 (6) ◽  
pp. 732-737 ◽  
Author(s):  
M. DI BIASE ◽  
A. CHIDDO ◽  
G. CARUSO ◽  
M. TRITTO ◽  
A. MARCHESE ◽  
...  
Keyword(s):  
Cardiac Disease ◽  
Histological Findings ◽  
Ventricular Premature Beats ◽  
Young Subjects ◽  
Premature Beats

PP-282 LEFT LATERAL ACCESSORY PATHWAY AND IDIOPATHIC VENTRICULAR PREMATURE BEATS: A RARE COMBINATION

2013 ◽  
Vol 163 (3) ◽  
pp. S194
Author(s):  
N. Sen ◽  
M. Kurt ◽  
E. Büyükkaya ◽  
M.F. Karakaş ◽  
A.B. Akçay ◽  
...  
Keyword(s):  
Accessory Pathway ◽  
Ventricular Premature Beats ◽  
Rare Combination ◽  
Premature Beats

A new approach for the recognition of ventricular premature beats∗

1960 ◽  
Vol 5 (3) ◽  
pp. 358-369 ◽  
Author(s):  
Abdo Bisteni ◽  
Demetrio Sodi-Pallares ◽  
Gustavo A. Medrano ◽  
Fúlvio Pileggi
Keyword(s):  
New Approach ◽  
Ventricular Premature Beats ◽  
Premature Beats

scholarly journals Re-entrant ventricular tachycardia as a complication of ablation of idiopathic ventricular premature beats from the right outflow tract: a case report

2020 ◽  
Author(s):  
Nam Van Tran ◽  
Samuel Rotman ◽  
Patrice Carroz ◽  
Etienne Pruvot
Keyword(s):  
Ventricular Tachycardia ◽  
Low Voltage ◽  
Perfect Match ◽  
Right Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Ventricular Premature Beats ◽  
First Case ◽  
The Right ◽  
Premature Beats ◽  
Pace Mapping

Abstract Background We report an unusual case of non-sustained ventricular tachycardia (NSVT) from the epicardial part of the right ventricular outflow tract (RVOT). Case summary A 37-year-old woman who underwent in 2006 an ablation for idiopathic ventricular premature beats (VPBs) from the RVOT presented with pre-syncopal NSVT in 2016. A cardiac workup showed no coronary disease, normal biventricular function, and no enhancement on cardiac magnetic resonance imaging. A metabolic positron emission tomography scan excluded inflammation. Biopsies revealed normal desmosomal proteins. An endocardial mapping revealed an area of low voltage potential (<0.5 mV) at the antero-septal aspect of the RVOT corresponding to the initial site of ablation from 2006. Activation mapping revealed poor prematurity and pace-mapping showed unsatisfactory morphologies in the RVOT, the left ventricle outflow tract and the right coronary cusp. An epicardial map revealed a low voltage area at the antero-septal aspect of the RVOT with fragmented potentials opposite to the endocardial scar. Pace-mapping demonstrated perfect match. An NSVT was induced and local electrocardiogram showed mid-diastolic potentials. Ablation was applied epicardially and endocardially without any complication. The patient was arrhythmia free at 4-year follow-up. Discussion Cardiac workup allowed to exclude specific conditions such as arrhythmogenic cardiomyopathy, tetralogy of Fallot, sarcoidosis, or myocarditis as a cause for NSVT from the RVOT. The epi and endocardial map showed residual scar subsequent to the first ablation which served as substrate for the re-entrant NSVT. This is the first case which describes NSVT from the epicardial RVOT as a complication from a previous endocardial ablation for idiopathic VPB.

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