Combining a clinical risk score with D dimer testing to rule out aortic dissection

From the International Journal of Cardiology:

•We evaluated ADD risk score plus D-dimer for the rule-out of aortic dissection.
•D-dimer less than 500 ng/mL had a sensitivity of 100% in patients with ADD risk score 0.
•D-dimer less than 500 ng/mL had a sensitivity of 98.7% in patients with ADD risk score less than or equal to 1.
•ADD risk score 0/less than or equal to1 plus D-dimer less than 500 ng/mL accurately ruled-out aortic dissection.

More on the ADD score here.

I first suggested combining the tools here.