| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Electrophysiological Analysis of Chronic Atrial Fibrillation Associated with Mitral Valve Disease by Using Spectral Analysis |
|
言語 |
en |
| 作成者 |
Imai, Katsuhiko
Sueda, Taijiro
Orihashi, Kazumasa
Ishii, Osamu
Matsuura, Yuichiro
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Chronic atrial fibrillation |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Electrophysiology |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Fast Fourier transform analysis |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Surgical ablation |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
490 |
| 内容記述 |
|
|
内容記述 |
Several authors have suggested that periodic activation is related to maintenance of atrial fibrillation (AF). The aim of this study was to examine periodic electrical activations in both atria that may lead to the generation and maintenance of AF associated with valvular diseases by means of fast Fourier transform (FFT) analysis. Atrial electrograms (AEGs) were analyzed in 15 persistent AF patients, who underwent pulmonary vein orifice (PVO) isolation with mitral valve surgery. Intraoperatively, AEGs of 4 seconds duration were acquired at 48 epicardial sites, 24 each from the right and left atrium (RA, LA). Dominant peaks (DPs) examined using FFT were present in 26% of all sampling points (380/1440). Prominent clustering of DPs was mostly observed on the LA. The mean AF cycle length (mAFCL) estimated from DP frequency was significantly shorter in LA than that in RA (178 ± 32 msec vs 24 7 ± 58, p = 0.0003). The shortest AF cycle length in each patient was mainly found in the LA. The PVO isolation procedures successfully eliminated AF in 87% of patients (13/15). In cases of recurred AF (2/15), the difference in mAFCL between bilateral atria was significantly smaller than in the case of successful AF elimination (17 ± 7 msec vs 76 ± 56, p = 0.042). FFT analysis of intraoperative mapping data clarified that periodic activity was present predominantly in LA. It may be possible to predict the efficacy of surgical procedures for eliminating AF using this technique. |
|
言語 |
en |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
This work was supported in part by a Grant-inAid for Scientific Research from the Ministry of Education, Science, Sports, and Culture of Japan (no. 10470275; to Dr Sueda). |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
The main concepts of this work were presented at the 49th international congress of the European Society for Cardiovascular Surgery, Dresden, Germany, 2000. |
| 出版者 |
|
|
出版者 |
Hiroshima University Medical Press |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0018-2052 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00664312 |
| 開始ページ |
|
|
開始ページ |
27 |
| 書誌情報 |
Hiroshima Journal of Medical Sciences
Hiroshima Journal of Medical Sciences
巻 50,
号 1,
p. 27-35,
発行日 2001-03
|
| 旧ID |
37682 |
HiroshimaJMedSci_50_27.pdf (946.7 KB)
