| Chiang SJ |
------>authors3_c= ------>paper_class1=1 ------>Impact_Factor=3.475 ------>paper_class3=2 ------>paper_class2=1 ------>vol=17 ------>confirm_bywho=yjchen ------>insert_bywho=yjchen ------>Jurnal_Rank=20.0 ------>authors4_c= ------>comm_author= ------>patent_EDate=None ------>authors5_c= ------>publish_day=1 ------>paper_class2Letter=None ------>page2=1278 ------>medlineContent= ------>unit=E1400 ------>insert_date=20081226 ------>iam=7 ------>update_date=None ------>author=??? ------>change_event=4 ------>ISSN=1045-3873 ------>authors_c= ------>score=500 ------>journal_name=J Cardiovasc Electrophysiol ------>paper_name=Anatomic characteristics of the left atrial isthmus in patients with atrial fibrillation: lessons from computed tomographic images. ------>confirm_date=20090316 ------>tch_id=087031 ------>pmid=17096659 ------>page1=1274 ------>fullAbstract=INTRODUCTION: Left atrial (LA) isthmus ablation was reported to improve the success rate of catheter ablation of paroxysmal atrial fibrillation (AF). LA isthmus ablation could also cure a subset of LA flutter. Therefore, understanding the anatomy of the LA isthmus is important for performing the ablation effectively. METHODS AND RESULTS: Group I included 45 patients (40 male, mean age = 50 +/- 13 years) with paroxysmal AF who underwent catheter ablation. Group II included 45 patients (37 male, mean age = 54 +/- 10 years) without a history of AF. They underwent a 16-slice multidetector computed tomography (MDCT) scan to delineate the LA structures before the ablation procedure. The average length of the LA isthmus was longer in group I than in group II (lateral isthmus: 3.30 +/- 0.68 vs 2.71 +/- 0.60 cm, P < 0.001; medial isthmus: 5.12 +/- 0.94 vs 4.45 +/- 0.63 cm, P < 0.001), and morphological patterns of lateral and medial isthmus were similar between groups. In addition, the average depth of lateral isthmus was similar between groups (0.62 +/- 0.32 vs 0.55 +/- 0.33 cm, P = 0.41), but the average depth of medial isthmus was larger in group I than in group II (0.60 +/- 0.32 vs 0.44 +/- 0.25 cm, P = 0.01). The medial isthmus had more ridges, as compared to the lateral isthmus (13% vs 0%, P = 0.026). Furthermore, the distances between esophagus and lateral isthmus were longer in group I than in group II (at the middle of isthmus and mitral annulus level: 21.0 +/- 4.8 vs 18.4 +/- 6.0 mm, P < 0.001; and 37.1 +/- 5.7 vs 29.6 +/- 8.1 mm, P < 0.001, respectively). CONCLUSION: The LA isthmus was longer in the AF patients. The morphology of the isthmus was variable. Compared with the lateral isthmus, the medial isthmus was longer and had more ridges. A peculiar configuration of the isthmus provided by CT images could influence the ablation strategy. ------>tmu_sno=None ------>sno=21049 ------>authors2=Tsao HM ------>authors3=Wu MH ------>authors4=Tai CT ------>authors5=Chang SL ------>authors6=Wongcharoen W, Lin YJ, Lo LW, Chen YJ, Sheu MH, Chang CY, Chen SA. ------>authors6_c= ------>authors=Chiang SJ ------>delete_flag=0 ------>SCI_JNo=None ------>authors2_c= ------>publish_area=0 ------>updateTitle=Anatomic characteristics of the left atrial isthmus in patients with atrial fibrillation: lessons from computed tomographic images. ------>language=2 ------>check_flag=None ------>submit_date=None ------>country=None ------>no=12 ------>patent_SDate=None ------>update_bywho=None ------>publish_year=2006 ------>submit_flag=None ------>publish_month=12 |