| Lin YJ |
------>authors3_c= ------>paper_class1=1 ------>Impact_Factor=9.133 ------>paper_class3=2 ------>paper_class2=1 ------>vol=47 ------>confirm_bywho=shiemin ------>insert_bywho=mhhsieh ------>Jurnal_Rank=4.2 ------>authors4_c= ------>comm_author= ------>patent_EDate=None ------>authors5_c= ------>publish_day=1 ------>paper_class2Letter=None ------>page2=1407 ------>medlineContent= ------>unit=E0109 ------>insert_date=20060404 ------>iam=7 ------>update_date=None ------>author=??? ------>change_event=4 ------>ISSN= ------>authors_c= ------>score=500 ------>journal_name=Journal of the American College of Cardiology ------>paper_name=Frequency Analysis in Different Types of Paroxysmal Atrial Fibrillation ------>confirm_date=20060501 ------>tch_id=089018 ------>pmid=16580528 ------>page1=1401 ------>fullAbstract=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. ------>tmu_sno=None ------>sno=13240 ------>authors2=Tai CT ------>authors3=Kao T ------>authors4=Tso HW ------>authors5=Higa S ------>authors6=Tsao HM, Chang SL, Hsieh MH, Chen SA ------>authors6_c= ------>authors=Lin YJ ------>delete_flag=0 ------>SCI_JNo=None ------>authors2_c= ------>publish_area=0 ------>updateTitle=Frequency analysis in different types of paroxysmal atrial fibrillation. ------>language=2 ------>check_flag=None ------>submit_date=None ------>country=None ------>no=7 ------>patent_SDate=None ------>update_bywho=None ------>publish_year=2006 ------>submit_flag=None ------>publish_month=4 |