INTRODUCTION
Cardiovascular complications are the leading cause of mortality among kidney recipients. Moreover, cardiovascular risk is associated with kidney transplant outcomes.
OBJECTIVE
To justify the QRISK-3 algorithm in patients with end-stage renal disease for cardiovascular risk stratification and to develop a mathematical model for predicting kidney transplant outcomes including QRISK-3 score.
MATERIAL AND METHODS
We examined 191 patients before and after kidney transplantation. Patients were divided into 3 groups depending on the outcomes after transplantation: group 1 with favorable outcomes — 157 (82.2%) patients, group 2 with graft loss — 30 (15.7%) patients, group 3 with fatal outcomes — 4 (2.1%) patients. Cardiovascular risks were calculated in all groups using the QRISK-3 algorithm. Prognostic value of this scale was assessed considering postoperative cardiovascular events. A mathematical model for predicting the kidney transplant outcomes was developed.
RESULTS
We found significant differences between groups 1 and 2, as well as 1 and 3 (p1—2<0.001, p1—3=0.002) in cardiovascular risk based on QRISK-3 score. There was a moderate correlation between QRISK-3 results and kidney transplant outcomes (R=0.439, p=0.000*). The model for predicting adverse cardiovascular events based on QRISK-3 score had high sensitivity (98.1%) and specificity (79.4%). When we developed a mathematical model for predicting kidney transplant outcomes, the QRISK-3 parameters were among three most important predictors. The model had high diagnostic value.
CONCLUSION
The QRISK-3 prognostic algorithm is a valuable and easily reproducible tool not only in assessing cardiovascular risk among kidney transplant candidates and kidney recipients, but also in predicting transplant outcomes.