Prevalence, Risk Factors, and Outcomes of Chronic Kidney Disease in Systemic Lupus Erythematosus Patients with and without Lupus Nephritis.

Keren Cohen-Hagai,Mor Saban,Sydney Benchetrit,Dorin Bar-Ziv,Naomi Nacasch,Moshe Shashar,Yael Pri-Paz Basson,Ori Wand,Ayelet Grupper,Shaye Kivity,Oshrat E Tayer-Shifman
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Abstract

OBJECTIVE Chronic kidney disease (CKD) has significant clinical and therapeutic implications. This study assesses CKD prevalence, risk factors, and long-term outcomes in systemic lupus erythematosus (SLE) with and without lupus nephritis (LN). METHODS This single-center, retrospective medical records review study (2014-2023) included adult SLE patients. CKD was defined as estimated glomerular filtration rate (eGFR) <60 ml/min/1.73m2 or albuminuria ≥30 mg/24h in at least two consecutive tests, spaced ≥ 3 months apart. Statistical analyses included chi-squared tests, t-tests, multivariable regression, and Cox proportional hazards models. RESULTS 175 SLE patients were included with a mean follow-up of 18.3±14.7 years; 12 required kidney replacement therapy. CKD was diagnosed in 54.6% (89/163) of patients, including 15.7% with reduced eGFR only, 52.8% with albuminuria only, and 31.5% with both. LN was associated with a higher hazard ratio (HR=5.4) for CKD. Nevertheless, 46.1% of CKD patients had no history of LN. CKD was associated with increased cardiovascular morbidity, hospitalization rates for SLE exacerbations and infections. Cox analyses identified LN as the strongest predictor of CKD; other predictors were age and lower eGFR at diagnosis. CKD was an important predictor of mortality among patients with lupus, both in univariate and multivariable analyses (19.1% vs. 1.4%, p<0.001). CONCLUSION CKD is highly prevalent in SLE, including in patients without prior LN. CKD is associated with increased morbidity and mortality. This study emphasizes the clinical relevance of CKD diagnosis and management in SLE patients.
伴或不伴狼疮肾炎的系统性红斑狼疮患者慢性肾脏疾病的患病率、危险因素和结局。
目的慢性肾脏疾病(CKD)具有重要的临床和治疗意义。本研究评估伴有和不伴有狼疮性肾炎(LN)的系统性红斑狼疮(SLE)患者CKD患病率、危险因素和长期预后。方法本研究为单中心、回顾性病历回顾研究(2014-2023),纳入成年SLE患者。CKD的定义是,在至少两次连续试验中,估计肾小球滤过率(eGFR) <60 ml/min/1.73m2或蛋白尿≥30 mg/24h,间隔≥3个月。统计分析包括卡方检验、t检验、多变量回归和Cox比例风险模型。结果175例SLE患者入组,平均随访时间18.3±14.7年;12人需要肾脏替代治疗。54.6%(89/163)的患者被诊断为CKD,其中15.7%的患者仅eGFR降低,52.8%的患者仅蛋白尿,31.5%的患者两者都有。LN与CKD较高的风险比(HR=5.4)相关。然而,46.1%的CKD患者没有LN病史。CKD与心血管发病率、SLE恶化和感染的住院率增加有关。Cox分析发现LN是CKD的最强预测因子;其他预测因素是年龄和诊断时较低的eGFR。在单变量和多变量分析中,CKD是狼疮患者死亡率的重要预测因子(19.1% vs. 1.4%, p<0.001)。结论:ckd在SLE患者中非常普遍,包括既往无LN的患者。慢性肾病与发病率和死亡率增加有关。本研究强调SLE患者CKD诊断和治疗的临床意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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