Circadian variation of acute aortic dissection.

Abstract:

:Acute aortic dissection (AAD) is a life-threatening cardiovascular disease with high mortality. Hypertension is a well known risk factor of AAD. There have been previous reports about the association between circadian variation of blood pressure (BP) and cardiovascular events. However, little is known about the association between the onset-time of AAD and circadian variation of BP. The purpose of this study was to clarify the characteristics of circadian variation of BP in AAD and its relation to the onset-time of this disease. This study included type B spontaneous AAD patients who were referred to our institution and treated conservatively between January 2008 and June 2013. Patients with type A AAD, secondary to trauma, and type B AAD which preceded surgical intervention were excluded. Data were retrospectively collected from the hospital medical records. Sixty-eight patients with type B AAD were enrolled. The distribution of the circadian pattern in the study patients was as follows: extreme-dipper, 0% (none); dipper, 20.6% (n = 14); nondipper, 50% (n = 34); riser, 29.4% (n = 20). Non-dipper and riser patterns were more frequently observed compared with other population studies reported previously. Moreover, no patient in the dipper group had night-time onset while 31.5% of the patients in the absence of nocturnal BP fall group (non-dipper and riser) did (P = 0.01). Absence of a nocturnal BP fall was frequently seen in AAD patients. Absence of a nocturnal BP fall may be a risk factor of AAD. Circadian variation of BP may also affect the onset-time of type B AAD.

journal_name

Int Heart J

authors

Seguchi M,Wada H,Sakakura K,Nakagawa T,Ibe T,Ikeda N,Sugawara Y,Ako J,Momomura S

doi

10.1536/ihj.14-328

subject

Has Abstract

pub_date

2015-05-13 00:00:00

pages

324-8

issue

3

eissn

1349-2365

issn

1349-3299

journal_volume

56

pub_type

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