Specific original articles on endocrine metabolism
Comparison of the ratio of plasma aldosterone to renin concentrationmeasured by two chemiluminescent immunoassays in screening for primary aldosteronism
Zhixin Xu, Ying Song, Qianna Zhen, Shumin Yang, Jinbo Hu, Qifu Li, Conpas Group
Published 2019-12-25
Cite as Chin J Endocr Surg, 2019, 13(6): 445-449. DOI: 10.3760/cma.j.issn.1674-6090.2019.06.002
Abstract
ObjectiveTo compare the detection efficiency of the ratio of plasma aldosterone concentration to renin concentration (ARR) measured by imported and domestic chemiluminescent immunoassay kits for screening primary aldosteronism (PA) .
MethodsA total of 164 patients with essential hypertension and 64 patients with PA were recruited in this study. Plasma aldosterone concentration (PAC) and renin concentration (PRC) were measured concurrently by imported chemiluminescent immunoassay kit (Diasorin, Italy) and domestic kit (Mindray, Shenzhen, China) , and then ARR were calculated. A ROC curve analysis was performed to compare the screening efficacy of the two kits and the optimal ARR cut-offs for PA screening were recommended according to Youden’s index.
ResultsThe areas under the ROC curves (AUCROC) of ARR were 0.937 (95% CI 0.897-0.965, P<0.0001) detected by imported kit and 0.942 (95% CI 0.903-0.968, P<0.0001) detected by domestic kit. The difference of AUCROC of ARR detected by two kits was 0.00457 (95% CI -0.0210-0.0302, P<0.7263) .The highest Youden’s indexes of ARR were 0.749 (detected by imported kit) with the cut-off value of 12.8 (pg/ml) / (μIU/ml) (sensitivity 96.87%, specificity 78.05%) and 0.756 (detected by domestic kit) with the cut-off value of 12.5 (pg/ml) / (μIU/ml) (sensitivity 89.06%, specificity 86.59%) .
ConclusionsThere was no significant difference between domestic and imported chemiluminescent immunoassays in the screening efficiency of ARR for PA.
Key words:
Hyperaldosteronism; Chemiluminescent immunoassay; Renin; Aldosterone
Contributor Information
Zhixin Xu
Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
Ying Song
Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
Qianna Zhen
Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
Shumin Yang
Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
Jinbo Hu
Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
Qifu Li
Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
Conpas Group
Chongqing Primary Aldosteronism Research Team, Chongqing 400016, China