Corcione et al reported the TAVI-CT score for a patient undergoing transcatheter aortic valve implantation (TAVI). The authors are from multiple institutions in Italy.
Patient seletion: TAVI
Required Testing: cardiac CT
Parameters:
(1) nodular calcium
(2) subvalvular calcium
(3) elliptical index (ratio of minimum to maximum diameters)
(4) aortic isthmus angle in degrees
(5) aorta-ventricle angle
(6) bicuspid aortic valve
(7) coronary height in mm
(8) ilio-femoral calcifications
(9) vascular endograft
(10) access size in mm
(11) planned access
|
Parameter |
Finding |
Points |
|
nodular calcium |
none |
0 |
|
|
1 cuspid involved |
1 |
|
|
2 cuspids involved |
2 |
|
|
3 cuspids involved |
3 |
|
subvalvular calcium |
no |
0 |
|
|
yes |
1 |
|
elliptical index |
> 0.8 |
0 |
|
|
0.71 to 0.8 |
1 |
|
|
<= 0.7 |
2 |
|
aortic isthmus |
> 95 degrees |
0 |
|
|
<= 95 degrees |
1 |
|
aorta-ventricle angle |
> 55 degrees |
0 |
|
|
<= 55 degrees |
1 |
|
bicuspid aortic valve |
no |
0 |
|
|
yes |
1 |
|
coronary height |
> 10 mm |
0 |
|
|
<= 10 mm |
1 |
|
ilio-femoral calcifications |
none |
0 |
|
|
mild |
1 |
|
|
moderate or severe |
2 |
|
vascular endograft |
no |
0 |
|
|
yes |
1 |
|
access size |
> 6 mm |
0 |
|
|
<= 6 mm |
1 |
|
planned access |
femoral |
0 |
|
|
axillary |
1 |
|
|
other (aortic, apical, carotid, caval, subclavian) |
2 |
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 16
• The vascular complications increase as the score increases.
• Mortality is comparable between the categories.
|
Total Score |
Anatomic Risk Category |
|
0 to 2 |
low |
|
3 |
intermediate |
|
4 to 16 |
high |
Specialty: Cardiology
