Description

Lovy et al evaluate patients with suspected acute aortic syndromes in the Emergency Room. They identified patients who may not need to undergo CT exam. The authors are from Montefiore Medical Center in New York.


Acute aortic syndrome includes: aortic dissection, intramural hematoma, penetrating aortic ulcer, rupture aneurysm

 

Patient selection: acute onset of pain suspicious for aortic disease

 

Exclusions: history of dissection, trauma, prior aortic surgery

 

The diagnosis of acute aortic syndrome is excluded if pain is resolved by the time the patient is evaluated in the ED.

 

The patient is considered high risk for an acute aortic syndrome if one or both of the following are present:

(1) acute chest pain

(2) abnormal chest X-ray (widened mediastinum, abnormal aortic contour)

 

The authors performed a multivariate regression analysis on the data.

 

Parameters:

(1) acute onset of chest pain

(2) abnormal chest radiograph (widened mediastinum, abnormal aortic contour)

(3) history of hyperlipidemia

 

Parameter

Finding

Points

abnormal chest X-ray

no

0

 

yes

4.20

acute chest pain

no

0

 

yes

2.87

hyperlipidemia

no

0

 

yes

-2.86

 

X =

= SUM(points for all 3 parameters) - 4.07

 

probability of acute aortic syndrome =

= 1 / (1 + EXP((-1) * X))


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