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Urinary sodium/potassium ratio as a screening tool for hyperaldosteronism in men with hypertension
Hypertension Research ( IF 5.4 ) Pub Date : 2021-05-17 , DOI: 10.1038/s41440-021-00663-9
Hiroyoshi Segawa 1, 2 , Akane Higashi 1 , Izuru Masuda 3 , Kengo Yoshii 4 , Toshiyuki Iwahori 5 , Hirotsugu Ueshima 2, 5
Affiliation  

Among individuals with hypertension, the prevalence of secondary hypertension has been reported to be ≈10%. More than half of individuals with secondary hypertension have associated hyperaldosteronism. However, given the current clinical environment, these patients often remain undiagnosed. We hypothesized that the urinary sodium/potassium ratio (Na/K) could be used as a simple, low-cost method of screening for hyperaldosteronism among individuals with hypertension in primary care and health examination settings. We recruited hypertensive individuals aged 30–69 years old who were not taking any antihypertensive medications from among participants in health examinations. Urinary Na and K were measured using second morning urine samples, and the plasma aldosterone concentration (PAC) was also measured. We evaluated the association of the second morning urine Na/K ratio (SMU Na/K) with a high PAC, defined as ≥90th percentile (24.3 ng/dL), using receiver operating characteristic (ROC) curves. Overall, 160 participants (108 men and 52 women) with a mean age of 54.3 years were eligible for this study. The area under the ROC curve for the relationship between SMU Na/K and high PAC was 0.77 (95% confidence interval [CI]: 0.59–0.95) in men and 0.64 (95% CI: 0.36–0.93) in women. In men, SMU Na/K values <1.0 could detect hyperaldosteronism with a sensitivity of 45.5%, a specificity of 97.9%, a positive predictive value of 71.4%, and a negative predictive value of 94.1%. The use of the urinary Na/K ratio may be appropriate as a method of screening for hyperaldosteronism in hypertensive men.



中文翻译:

尿钠/钾比值作为男性高血压患者醛固酮增多症的筛查工具

据报道,在高血压患者中,继发性高血压的患病率约为 10%。超过一半的继发性高血压患者伴有醛固酮增多症。然而,鉴于目前的临床环境,这些患者往往仍未得到诊断。我们假设尿钠/钾比 (Na/K) 可用作在初级保健和健康检查环境中筛查高血压患者醛固酮增多症的一种简单、低成本的方法。我们从健康检查的参与者中招募了年龄在 30-69 岁且未服用任何抗高血压药物的高血压患者。使用第二天早晨的尿液样本测量尿 Na 和 K,并且还测量了血浆醛固酮浓度 (PAC)。我们使用受试者工作特征 (ROC) 曲线评估了第二次晨尿 Na/K 比 (SMU Na/K) 与高 PAC(定义为≥90% (24.3 ng/dL))的关联。总体而言,平均年龄为 54.3 岁的 160 名参与者(108 名男性和 52 名女性)符合这项研究的条件。SMU Na/K 与高 PAC 之间关系的 ROC 曲线下面积在男性中为 0.77(95% 置信区间 [CI]:0.59-0.95),在女性中为 0.64(95% CI:0.36-0.93)。在男性中,SMU Na/K 值 <1.0 可以检测醛固酮增多症,灵敏度为 45.5%,特异性为 97.9%,阳性预测值为 71.4%,阴性预测值为 94.1%。使用尿 Na/K 比值可能适合作为筛查高血压男性醛固酮增多症的方法。使用受试者工作特征 (ROC) 曲线定义为≥90% (24.3 ng/dL)。总体而言,平均年龄为 54.3 岁的 160 名参与者(108 名男性和 52 名女性)符合这项研究的条件。SMU Na/K 与高 PAC 之间关系的 ROC 曲线下面积在男性中为 0.77(95% 置信区间 [CI]:0.59-0.95),在女性中为 0.64(95% CI:0.36-0.93)。在男性中,SMU Na/K 值 <1.0 可以检测醛固酮增多症,灵敏度为 45.5%,特异性为 97.9%,阳性预测值为 71.4%,阴性预测值为 94.1%。使用尿 Na/K 比值可能适合作为筛查高血压男性醛固酮增多症的方法。使用受试者工作特征 (ROC) 曲线定义为≥90% (24.3 ng/dL)。总体而言,平均年龄为 54.3 岁的 160 名参与者(108 名男性和 52 名女性)符合这项研究的条件。SMU Na/K 与高 PAC 之间关系的 ROC 曲线下面积在男性中为 0.77(95% 置信区间 [CI]:0.59-0.95),在女性中为 0.64(95% CI:0.36-0.93)。在男性中,SMU Na/K 值 <1.0 可以检测醛固酮增多症,灵敏度为 45.5%,特异性为 97.9%,阳性预测值为 71.4%,阴性预测值为 94.1%。使用尿 Na/K 比值可能适合作为筛查高血压男性醛固酮增多症的方法。3 年有资格参加这项研究。SMU Na/K 与高 PAC 之间关系的 ROC 曲线下面积在男性中为 0.77(95% 置信区间 [CI]:0.59-0.95),在女性中为 0.64(95% CI:0.36-0.93)。在男性中,SMU Na/K 值 <1.0 可以检测醛固酮增多症,灵敏度为 45.5%,特异性为 97.9%,阳性预测值为 71.4%,阴性预测值为 94.1%。使用尿 Na/K 比值可能适合作为筛查高血压男性醛固酮增多症的方法。3 年有资格参加这项研究。SMU Na/K 与高 PAC 之间关系的 ROC 曲线下面积在男性中为 0.77(95% 置信区间 [CI]:0.59-0.95),在女性中为 0.64(95% CI:0.36-0.93)。在男性中,SMU Na/K 值 <1.0 可以检测醛固酮增多症,灵敏度为 45.5%,特异性为 97.9%,阳性预测值为 71.4%,阴性预测值为 94.1%。使用尿 Na/K 比值可能适合作为筛查高血压男性醛固酮增多症的方法。阳性预测值为71.4%,阴性预测值为94.1%。使用尿 Na/K 比值可能适合作为筛查高血压男性醛固酮增多症的方法。阳性预测值为71.4%,阴性预测值为94.1%。使用尿 Na/K 比值可能适合作为筛查高血压男性醛固酮增多症的方法。

更新日期:2021-05-17
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