Temporal Stability in the Spectral Representation of Complex Fractionated Atrial Electrograms
نویسندگان
چکیده
منابع مشابه
Comparison of spectral estimators for characterizing fractionated atrial electrograms
BACKGROUND Complex fractionated atrial electrograms (CFAE) acquired during atrial fibrillation (AF) are commonly assessed using the discrete Fourier transform (DFT), but this can lead to inaccuracy. In this study, spectral estimators derived by averaging the autocorrelation function at lags were compared to the DFT. METHOD Bipolar CFAE of at least 16 s duration were obtained from pulmonary ve...
متن کاملConnexin and fibrosis related microRNAs in complex fractionated atrial electrograms
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice. There are two main factors facilitating the formation and persistence of AF: enhanced automaticity in some rapidly depolarizing foci and abnormal conduction substrates [1]. Fractionated or fragmented electrograms during AF were initially reported by Konings et al. [2] Then, other authors d...
متن کاملImproved frequency resolution for characterization of complex fractionated atrial electrograms
BACKGROUND The dominant frequency of the Fourier power spectrum is useful to analyze complex fractionated atrial electrograms (CFAE), but spectral resolution is limited and uniform from DC to the Nyquist frequency. Herein the spectral resolution of a recently described and relatively new spectral estimation technique is compared to the Fourier radix-2 implementation. METHODS In 10 paroxysmal ...
متن کاملTemporo-spatial stability of complex fractionated atrial electrograms in two distinct and separate episodes of paroxysmal atrial fibrillation.
AIMS Ablation of complex fractionated atrial electrograms (CFAEs) during atrial fibrillation (AF) has been used as adjunct to contemporary techniques or as an alternative. Temporo-spatial stability of CFAE has been demonstrated in single episodes of AF. We examined temporo-spatial reproducibility of CFAE in two distinct episodes of AF. METHODS AND RESULTS The left atrium (LA) was mapped using...
متن کاملComplex Fractionated Atrial Electrograms in Catheter Ablation of Atrial Fibrillation: Dead and Buried?
Is There Still a Role for Complex Fractionated Atrial Electrogram Ablation in Addition to Pulmonary Vein Isolation in Patients With Paroxysmal and Persistent Atrial Fibrillation?: Meta-Analysis of 1415 Patients Rui Providência, MD, MSc; Pier D. Lambiase, PhD; Neil Srinivasan, MD; Girish Ganesh Babu, MD; Konstantinos Bronis, MD; Syed Ahsan, MD; Fakhar Z. Khan, MD; Anthony W. Chow, MD; Edward Row...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pacing and Clinical Electrophysiology
سال: 2013
ISSN: 0147-8389
DOI: 10.1111/pace.12245