Risk Score of Fu et al for Contrast-Induced Nephropathy in an Elderly Patient Undergoing Percutaneous Coronary Intervention (PCI)

Description

Fu et al developed a score for predicting the risk of contrast-induced nephropathy in an older adult undergoing percutaneous coronary intervention (PCI). This can help to identify a patient who may benefit from more aggressive management or an alternative to contrast. The authors are from Tianjin Chest Hospital and Tianjin Medical University in China.

Patient selection: older adult (>= 65 years) undergoing PCI with contrast (low-osmolar or iso-osmolar)

Parameters:

(1) eGFR in mL per min per 1.73 square meter

(2) left ventricular ejection fraction (LVEF) in percent

(3) diabetes

(4) hypotension

(5) anemia

(6) age in years

(7) emergency procedure

(8) acute myocardial infarction

(9) contrast volume in mL

Parameter	Finding	beta-coefficient	Points
eGFR	>= 60	0	0
	< 60	1.215	4
LVEF	>= 45%	0	0
	< 45%	0.937	3
diabetes	no	0	0
	yes	1.029	3
hypotension	no	0	0
	yes	1.009	2
anemia	no	0	0
	yes	0.801	2
age in years	65 to 70	0	0
	> 70	0.577	2
emergency	no	0	0
	yes	0.862	2
AMI	no	0	0
	yes	0.817	2
contrast volume	<= 200 mL	0	0
	> 200 mL	0.789	2

total score =

= SUM(points for all 9 parameters)

X =

= SUM(points for all 9 beta-coefficients) - 4.307

probability =

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

Interpretation:

• minimum score: 0

• maximum score: 22

• The higher the score the greater the risk of contrast-induced nephropathy.

Score	Percent Nephropathy
0	1.5%
2	2%
3	5%
4	7%
5	9%
6	10%
7	13%
8	13%
9	27%
10	27%
11	39%
12	52%
13	57%
14	66%
>= 15	84%

from Figure 1

Performance:

• The area under the ROC curve is 0.79.

To read more or access our algorithms and calculators, please log in or register.

Risk Score of Fu et al for Contrast-Induced Nephropathy in an Elderly Patient Undergoing Percutaneous Coronary Intervention (PCI)

Description

Specialty