Item request has been placed! ×
Item request cannot be made. ×
loading  Processing Request

Complex fractionated electrogram distribution and temporal stability in patients undergoing atrial fibrillation ablation.

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
اقرأ على الانترنت اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • المصدر:
      Publisher: Blackwell Country of Publication: United States NLM ID: 9010756 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1540-8167 (Electronic) Linking ISSN: 10453873 NLM ISO Abbreviation: J Cardiovasc Electrophysiol Subsets: MEDLINE
    • بيانات النشر:
      Publication: Malden, MA : Blackwell
      Original Publication: Mt. Kisco, N.Y. : Futura Pub., c1990-
    • الموضوع:
      Atrial Fibrillation/*diagnosis ; Atrial Fibrillation/*surgery ; Body Surface Potential Mapping/*methods ; Catheter Ablation/*methods ; Electrocardiography/*methods; Female ; Humans ; Male ; Middle Aged ; Reproducibility of Results ; Sensitivity and Specificity ; Treatment Outcome
    • نبذة مختصرة :
      Background: Targeting of complex fractionated electrograms (CFEs) has been described as an approach for catheter ablation of atrial fibrillation (AF); however, the distribution and temporal stability of CFE regions remain poorly defined.
      Methods: In patients with persistent AF referred for ablation, we performed two consecutive left atrial (LA) CFE maps prior to AF ablation. Bipolar electrograms were acquired during AF, and the mean AF cycle length and electrogram voltage were automatically determined at each point. Sites with mean CL Results: A total of 15 patients (93% male, age 56.1 +/- 9.0 years) undergoing AF ablation were studied. The two maps were separated in time by 31 +/- 10 minutes. There was no significant difference in the number of CFE-positive regions (12.3 +/- 5.2 vs 11.3 +/- 4.7; P = 0.06) between the maps. While CFEs were widely distributed within the LA, the PV/left atrial junction (73%) and left atrial appendage (77%) were most often CFE positive. The presence of CFEs at each region was concordant 78% of the time. There was a significant correlation between the two maps (r = 0.35 +/- 0.21, range 0.1-0.84; P < 0.001) with a percent difference of 17.5 +/- 9.4%.
      Conclusions: During persistent AF, most CFE regions are found in the vicinity of the PVs. There is a significant correlation between two CFE maps constructed 31 minutes apart, with 78% concordance of CFE sites.
    • Comments:
      Comment in: J Cardiovasc Electrophysiol. 2008 Dec;19(12):E58; author reply E59. (PMID: 19120686)
    • الموضوع:
      Date Created: 20080401 Date Completed: 20081030 Latest Revision: 20090316
    • الموضوع:
      20240628
    • الرقم المعرف:
      10.1111/j.1540-8167.2008.01133.x
    • الرقم المعرف:
      18373601