Von Meijenfeldt et al reported the Dutch Aneurysm Score (DAS) for evaluating a patient with a ruptured abdominal aortic aneurysm. The authors are from multiple institutions in The Netherlands.
Patient selection: ruptured abdominal aortic aneurysm
Outcome: 30-day mortality
Parameters:
(1) age in years
(2) systolic blood pressure (SBP) in mm Hg
(3) cardiopulmonary resuscitation (CPR)
(4) hemoglobin in mmol/L
hemoglobin in mmol/L =
= 0.1551 * (hemoglobin in g/dL)
Parameter
Finding
Points
age in years
0.074 * (age)
systolic blood pressure
-0.012 * (SBP)
CPR
no
0
yes
-0.12
hemoglobin
-1.27 * ((Hgb)/10)^3
score =
= SUM(points for all of the parameters)
value of X =
= (score) - 4.73
probability of 30-day mortality =
= 1 / (1 + EXP((-1) * X))
Performance:
• The area under the ROC curve is 0.77.
Continue Reading
