Frequency analysis in different types of paroxysmal atrial fibrillation

Yenn Jiang Lin, Ching Tai Tai, Tsair Kao, Han Wen Tso, Satoshi Higa, Hsuan Ming Tsao, Shih Lin Chang, Ming Hsiung Hsieh, Shih Ann Chen

研究成果: 雜誌貢獻文章同行評審

106 引文 斯高帕斯(Scopus)

摘要

OBJECTIVES: This study sought to investigate the regional frequency distribution from multiple bi-atrial sites in different types of paroxysmal atrial fibrillation (AF). BACKGROUND: A previous study showed a left atrium (LA) to right atrium (RA) frequency gradient in patients with paroxysmal AF. METHODS: Forty-four patients (age = 60 ± 16, male patients = 27) with paroxysmal AF originating from the pulmonary veins (PVs) (n = 31) or superior vena cava (SVC) (n = 13) were included. Frequency analysis was performed on the intracardiac electrograms (7 s, 1 kHz/channel) recorded from PV, posterior LA, coronary sinus (CS), posterolateral RA, and SVC. The largest peak frequency was identified as the dominant frequency (DF). RESULTS: In the PV-AF patients, there was a frequency gradient from the PV ostium to the LA, RA, and SVC (8.5 ± 3.3 Hz vs. 5.9 ± 1.1 Hz vs. 5.2 ± 0.85 Hz vs. 5.5 ± 0.48 Hz, respectively, p < 0.001). The highest DFs were mostly located at the arrhythmogenic PV ostium (58%). The DFs of the arrhythmogenic PV and PV ostium were significantly higher than those of the non-arrhythmogenic PVs and PV ostia (p < 0.05). In the SVC-AF patients, there was a frequency gradient from the SVC to the RA, LA, and PV (8.0 ± 2.4 Hz vs. 5.9 ± 1.1 Hz vs. 5.9 ± 0.7 Hz vs. 5.8 ± 0.7 Hz, respectively, p = 0.001). The highest DFs were mostly located inside the SVC (77%) instead of the SVC ostium (as compared with PV-AF patients, p = 0.035). CONCLUSIONS: The location of the highest DF depended on the arrhythmogenic PV or SVC. A frequency gradient was present between the arrhythmogenic thoracic vein and atrium in all patients.

原文英語
頁(從 - 到)1401-1407
頁數7
期刊Journal of the American College of Cardiology
47
發行號7
DOIs
出版狀態已發佈 - 4月 7 2006

ASJC Scopus subject areas

  • 心臟病學與心血管醫學

指紋

深入研究「Frequency analysis in different types of paroxysmal atrial fibrillation」主題。共同形成了獨特的指紋。

引用此