https://scholars.lib.ntu.edu.tw/handle/123456789/536776
標題: | Clinical implications of left atrial appendage flow patterns in nonrheumatic atrial fibrillation | 作者: | Li Y.-H. LING-PING LAI Shyu K.-G. HWANG, JUEY-JEN Kuan P. Lien W.-P. |
公開日期: | 1994 | 出版社: | American College of Chest Physicians | 卷: | 105 | 期: | 3 | 起(迄)頁: | 748-752 | 來源出版物: | Chest | 摘要: | Left atrial appendage (LAA) function and flow patterns in 29 patients with chronic nonrheumatic atrial fibrillation were studied by transesophageal echocardiography. These 29 patients (16 men and 13 women; mean age, 63.8 years; range, 38 to 77 years) were classified into two groups according to different LAA flow patterns. Seventeen patients (group 1) had well-defined LAA emptying and filling Doppler flow signals, and the other 12 patients (group 2) had very low LAA flow signals. No significant differences were found in age, sex, mean duration of atrial fibrillation, left ventricular end diastolic dimension, and left ventricular ejection fraction between the two groups. However, group 2 patients had larger left atrial diameter (42.8 ± 4.2 mm vs 36.6 ± 8.8 mm; p < 0.05), lower LAA ejection fraction (26.4 ± 15.2 percent vs 42.6 ± 14.1 percent; p < 0.05), and lower LAA peak emptying velocity (0.13 ± 0.03 m/s vs 0.36 ± 0.16 m/s; p < 0.001). Higher incidence of LAA spontaneous echocardiographic contrast formation in group 2 patients (8/12 vs 1/17; p < 0.001) was noted. In conclusion, a subset of patients with nonrheumatic atrial fibrillation were found to have lower LAA blood flow and poorer LAA function. These patients had higher incidence of left atrial or LAA spontaneous echo contrast formation which had been proved previously to be a marker for future systemic thromboembolism. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0028348290&doi=10.1378%2fchest.105.3.748&partnerID=40&md5=3eb6a4adf4a870cc74dcf409a2e55017 https://scholars.lib.ntu.edu.tw/handle/123456789/536776 |
ISSN: | 0012-3692 | DOI: | 10.1378/chest.105.3.748 | SDG/關鍵字: | adult; aged; article; clinical article; Doppler flowmeter; female; heart atrium fibrillation; heart left ventricle ejection fraction; heart left ventricle enddiastolic volume; human; male; priority journal; rheumatic heart disease; thromboembolism; transesophageal echocardiography |
顯示於: | 醫學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。