Time Distribution in the Occurrence of Acute Aortic Dissection
Sun Wei-don · Huaxi yixue · 2011
Objective To investigate the features of time distribution in the occurrence of acute aortic dissection(AAD).Methods We retrospectively analyzed all the databases of AAD in our hospital between January 1,2000 and December 31,2010,and studied the monthly,seasonal,weekly,and circadian distribution of the cases.Results In terms of monthly distribution,the occurrence of AAD peaked at January 4th with the high frequency in the period of September 21st to April 19th of the next year(P0.05).According to the seasonal distribution,the occurrence of AAD peaked in winter and spring(P0.05).There was no peak time in weekly distribution(P0.05).In accordance with circadian distribution,the occurrence of AAD peaked at 10 and 16 o'clock(P0.05).Conclusion Because of the obvious rhythm of time distribution of AAD,We can pay more attention to the diagnosis of AAD especially in the peak time,thus reducing the mistakes in diagnosis and improving the prognosis.