Valve CAD

Calculation of probability of obstructive CAD

Coronary artery disease (CAD) screening is routinely performed in the preoperative

period of patients referred for valvular heart surgery. Invasive coronary angiography

could be avoided or used more efficiently in this population, if other non-invasive

gatekeeper tests such as myocardial perfusion imaging and coronary computed

tomography angiography were more frequently used in this setting. Therefore, to

support the adequate choice of the initial screening strategy, a reliable estimation of

the pre-test probability of obstructive CAD must be at hand.

This application is meant to provide pre-test probability estimates of obstructive

CAD in both male and female adult patients referred for valvular heart surgery,

without known CAD or previous CAD screening. It is powered by a multivariable

model derived and validated in two different cohorts of patients referred for valvular

heart surgery in two specialized heart centers. Using readily available clinical

variables it instantly calculates pre-test probability of obstructive CAD with

high accuracy. For more information please refer to the full text of the original

scientific article available

at:

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2017005018101&lng=en&nrm=iso&tlng=en