Hongbo Xu1, Linkun Hu1, Xuedong Wei1, Jian Niu2, Yuanyuan Gao2, Jun He2, Jianquan Hou1. 1. 1 Department of Urology, The First Affiliated Hospital of Soochow University , Suzhou, P.R. China . 2. 2 Center for Clinical Laboratory, The First Affiliated Hospital of Soochow University , Suzhou, P.R. China .
Abstract
OBJECTIVE: The aim of the study was to evaluate the predictive value of preoperative high-sensitive C-reactive protein/albumin (hs-CRP/Alb) ratio in systemic inflammatory response syndrome (SIRS) after percutaneous nephrolithotomy (PCNL). MATERIALS AND METHODS: We retrospectively reviewed 556 patients who underwent PCNL at our institution between August 2015 and February 2018. The primary endpoint for the study was the development of SIRS after operation. A univariate and multivariate logistic regression analysis was used to identify the independent factors associated with the post-PCNL SIRS. Receiver operating characteristic (ROC) curves were constructed and the areas under the curve (AUC) were calculated to compare the discriminatory ability of systemic inflammation biomarkers. RESULTS: Among the 556 patients who underwent PCNL, 123 patients (22.1%) developed SIRS. Multivariate analysis revealed that female gender (OR 1.691; 95% CI 1.045-2.735; p = 0.032), positive urine culture (OR 1.972; 95% CI 1.204-3.231; p < 0.01), hs-CRP/Alb ratio (OR 6.925; 95% CI 4.244-11.300; p < 0.01), neutrophil to lymphocyte ratio (NLR) (OR 2.476; 95% CI 1.471-4.167; p < 0.01), and prognostic nutritional index (PNI) (OR 0.559; 95% CI 0.338-0.924; p = 0.023) were independent predictors of post-PCNL SIRS. The optimal cutoff value of the hs-CRP/Alb ratio was 0.06 from the ROC analysis. The elevated hs-CRP/Alb ratio was significantly associated with female gender, positive urine culture, hs-CRP, albumin, leukocyte, neutrophil, monocyte, platelet, hemoglobin, creatinine, NLR, lymphocyte to monocyte ratio (LMR), platelet to lymphocyte ratio (PLR), PNI, high-sensitive modified Glasgow prognostic score (hs-mGPS), development of sepsis, ICU admission, and length of stay (all p < 0.05). In addition, the hs-CRP/Alb ratio had a higher AUC (0.791) with a sensitivity of 76.4% and a specificity of 73.2% than NLR (0.669), LMR (0.633), PLR (0.594), PNI (0.629), and hs-mGPS (0.739). CONCLUSIONS: The preoperative hs-CRP/Alb ratio is independently predictive for the development of SIRS after PCNL. Moreover, compared with other systemic inflammation biomarkers, the preoperative hs-CRP/Alb ratio shows a better predictive value.
OBJECTIVE: The aim of the study was to evaluate the predictive value of preoperative high-sensitive C-reactive protein/albumin (hs-CRP/Alb) ratio in systemic inflammatory response syndrome (SIRS) after percutaneous nephrolithotomy (PCNL). MATERIALS AND METHODS: We retrospectively reviewed 556 patients who underwent PCNL at our institution between August 2015 and February 2018. The primary endpoint for the study was the development of SIRS after operation. A univariate and multivariate logistic regression analysis was used to identify the independent factors associated with the post-PCNL SIRS. Receiver operating characteristic (ROC) curves were constructed and the areas under the curve (AUC) were calculated to compare the discriminatory ability of systemic inflammation biomarkers. RESULTS: Among the 556 patients who underwent PCNL, 123 patients (22.1%) developed SIRS. Multivariate analysis revealed that female gender (OR 1.691; 95% CI 1.045-2.735; p = 0.032), positive urine culture (OR 1.972; 95% CI 1.204-3.231; p < 0.01), hs-CRP/Alb ratio (OR 6.925; 95% CI 4.244-11.300; p < 0.01), neutrophil to lymphocyte ratio (NLR) (OR 2.476; 95% CI 1.471-4.167; p < 0.01), and prognostic nutritional index (PNI) (OR 0.559; 95% CI 0.338-0.924; p = 0.023) were independent predictors of post-PCNL SIRS. The optimal cutoff value of the hs-CRP/Alb ratio was 0.06 from the ROC analysis. The elevated hs-CRP/Alb ratio was significantly associated with female gender, positive urine culture, hs-CRP, albumin, leukocyte, neutrophil, monocyte, platelet, hemoglobin, creatinine, NLR, lymphocyte to monocyte ratio (LMR), platelet to lymphocyte ratio (PLR), PNI, high-sensitive modified Glasgow prognostic score (hs-mGPS), development of sepsis, ICU admission, and length of stay (all p < 0.05). In addition, the hs-CRP/Alb ratio had a higher AUC (0.791) with a sensitivity of 76.4% and a specificity of 73.2% than NLR (0.669), LMR (0.633), PLR (0.594), PNI (0.629), and hs-mGPS (0.739). CONCLUSIONS: The preoperative hs-CRP/Alb ratio is independently predictive for the development of SIRS after PCNL. Moreover, compared with other systemic inflammation biomarkers, the preoperative hs-CRP/Alb ratio shows a better predictive value.
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