在低水平蛋白尿症患者中预测多发性狼性炎的诺莫克拉姆
Yuewen Lu1,2, Li Tan1,2, Wang Xiang1,2
1Department of Nephrology, The First Affiliated Hospital of Sun Yat-Sen University, People's Republic of China.
Rheumatology (Oxford, England)
|January 17, 2025
概括
预测多发性狼性炎 (LN) 对于管理低水平蛋白尿症患者至关重要. 一种使用临床和实验室数据的新型诺摩图准确地识别了在活检之前可能患有增殖性LN的患者.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 免疫学 免疫学 免疫学
- 临床预测建模临床预测建模
背景情况:
- 增殖性狼性炎 (LN) 即使在低水平蛋白尿 (<0.5 g/24 h) 的情况下也可能发生.
- 准确预测增殖性LN对于及时有效的临床管理至关重要.
- 在蛋白尿量最小的患者中识别患有LN增殖的患者需要更好的预测工具.
研究的目的:
- 开发和验证一种预测模型,用于在患有低水平蛋白尿症 (<0.5g/24h) 的患者中预测扩散性狼性炎 (LN).
- 在这个特定的患者亚组中确定与增殖性LN相关的关键临床,尿道和实验室参数.
- 创建一个名图,用于预测生检前的LN.增殖的预测.
主要方法:
- 对671名经过活检证明的狼性炎 (LN) 患者的回顾性分析,按蛋白尿水平分类 (<0.5 g/24 h与≥0.5 g/24 h).
- 利用最小绝对收缩和选择运算符 (LASSO) 和多变量后勤回归来确定低蛋白尿症组中增殖性LN的预测因素.
- 构建了一个预测名录,并使用引导重抽样进行了内部验证.
主要成果:
- 在671名LN患者中,103人 (15.4%) 患有低水平蛋白尿,其中43人 (41.7%) 呈现出增殖性LN.
- 拉索回归确定了年龄,性别,平均动脉压,血红蛋白,血小板计数,24小时蛋白尿和抗dsDNA抗体阳性作为重要预测因素.
- 开发的预测模型表现出强的性能,曲线下的面积 (AUC) 为0.900 (95% CI 0.840-0.960) 和验证的AUC为0.894 (95% CI 0.832-0.965),显示出良好的校准.
结论:
- 显著比例 (41.7%) 的狼性炎患者低水平蛋白尿被发现在活检时有扩散性疾病.
- 开发的诺米图,结合了临床,尿道和实验室参数,在低水平蛋白尿的患者中,在脏活检前预测多发性LN有希望.
- 这种预测工具可以帮助临床医生进行风险分层,并为进一步的诊断工作做出决定.
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