Gharaibeh et al evaluated patients who developed acute kidney injury (AKI) after total hip arthroplasty. Although uncommon it can be present in patients with comorbidities. The authors are from the Mayo Clinic.
Patient selection: total hip arthroplasty
Parameters:
(1) age in years
(2) sex
(3) chronic kidney disease
(4) congestive heart failure
(5) diabetes mellitus
(6) hypertension
Parameter
Finding
Points
age in years
0.033 * (age)
sex
male
0.58
female
0
chronic kidney disease
no
0
yes
1.54
congestive heart failure
no
0
yes
1.51
diabetes
no
0
yes
0.74
hypertension
no
0
yes
0.72
X =
= SUM(points for all 6 parameters) - 8.18
probability of AKI =
= 1 / (1 + EXP((-1) * X))
Blood transfusion was an additional risk factor.
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