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KMID : 0368120100400110565
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Korean Circulation Journal
2010 Volume.40 No. 11 p.565 ~ p.572
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Examining the Relationship Between Triggering Activities and the Circadian Distribution of Acute Aortic Dissection
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Ryu Hyeon-Min
Lee Ju-Hwan
Kwon Yong-Seop
Park Sun-Hee
Lee Sang-Hyuk
Bae Myung-Hwan
Lee Jang-Hoon
Yang Dong-Heon
Park Hun-Sik
Cho Yong-Keun
Chae Shung-Chul
Jun Jae-Eun
Park Wee-Hyun
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Abstract
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Background and Objectives: There are limited data examining triggering activities and circadian distribution at the onset of acute aortic dissection (AAD) in the context of diagnostic and anatomical classification. The aim of this study was to further investigate this relationship between triggering activities and circadian distribution at the onset of AAD according to diagnostic and anatomic classification.
Subjects and Methods: A total of 166 patients with AAD admitted to Kyungpook National University Hospital between July 2001 and June 2009 were included. To assess the influence of diagnostic and anatomical classification, we categorized the patients into intramural hematoma (IMH) group (n=67)/non-IMH group (n=99) and Stanford type A (AAD-A, n=94)/type B (AAD-B, n=72). To evaluate circadian distribution, the day was divided into four 6-hour periods: night (00-06 hours), morning (06-12 hours), afternoon (12-18 hours), and evening (18-00 hours).
Results: Most (72%) AAD episodes were related to physical (53%) and mental activities (19%), with about one-third occurring during the afternoon, and only 12% occurring at night. No differences in triggering activities or circadian distribution were observed among the groups. Waking hours including morning, afternoon, and evening correlated with triggering activities (p=0.003). These relationships were observed for the non-IMH (p=0.008) and AAD-B (p=0.003) cases. The remaining categories had similar relationships, but did not reach statistical significance.
Conclusion: Our findings suggest differences in the relationship between triggering activities and the circadian distribution of the onset of AAD according to diagnostic and anatomical classification.
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KEYWORD
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Dissection, Aorta, Circadian rhythm
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