Possible association between serum alkaline phosphatase concentration and thoracicacute aortic dissection.

Objectives: Alkaline phosphatase (ALP) is an enzyme that catalyzes the hydrolysis of organic pyrophosphate. Accumulating data have demonstrated that the concentration of increased ALP is associated with C-reactive protein (CRP) concentration, and inflammation was complicated in the pathogenesis of acute aortic dissection (ADD). Therefore, the aim of our study was to examine the relationship between serum ALP concentration and thoracic ADD.

Methods: We retrieved demographic data and test results of biochemical data of 68 patients with thoracic ADD and 126 Non-thoracic ADD patients, retrospectively.

Results: A total of 194 patients were divided into thoracic ADD groups and non-thoracic ADD groups. Age, creatinine(Cr) and high-density lipoprotein cholesterol (HDL-C) were found to be statistical significance between the two groups. The mean ALP level was significantly higher in patients with thoracic ADD compared with Non-thoracic ADD patients (80.6±23.02 Vs. 65.9±16.49, P=0.001). Stepwise multiple logistic regression analyses revealed a significantly association of ALP with thoracic ADD (OR=1.038, 95% CI: 1.015-1.062, P=0.001). In addition, HDL-C was negative associated with thoracic ADD in multiple logistic regression analyses after adjustment for age, sex and Cr (OR=-0.083, 95% CI: 0.012-0.560, P=0.011).

Conclusions: The present study suggests that the level of serum ALP is associated with thoracic ADD, and serum ALP concentration may be apotential risk factor for thoracic ADD.