系统性硬化症并发肺动脉高压与血尿酸水平的相关性

摘要

Objective To explore the relationship between serum uric acid and pulmonary hypertension (PH) in patients with systemic sclerosis (SSc). Methods The echocardiography, electrocardiogram, nailfold videocapillaroscopy and laboratory parameters of 62 patients with SSc were retrospectively analyzed . Patients were divided into two groups according to presence of PH . Statistical analysis was performed using SPSS 17 software . Results Compared to patients without PH , patients with PH had significantly higher serum uric acid levels ( P < 0 . 01 ) , systolic pulmonary arterial pressure ( P < 0 . 01 ) , abnormality of electrocardiogram (P < 0.01), abnormality of nailfold video capillaroscopy and lower serum albunin levels (P < 0.01). Systolic pulmonary arterial pressure had correlation with Serum UA ( r = 0 . 26 , P < 0 . 01 ) as well as serum ablumin (r = -0.28, P < 0.03). Moreover, the mean value of serum UA was significantly different in two ECG groups (P < 0.01) and two nailfold videocapillaroscopy groups (P < 0.01). At the cutoff level of 374 μmol/L, serum uric acid had reasonable accuracy for predicting the presence of PH in SSc patients ( sensitivity 66 . 7% and specificity 84 . 0%) . Conclusion The serum uric acid may be useful as a practicable marker for predict PH in patients with SSc .%目的：探讨血尿酸与系统性硬化症（SSc）继发肺动脉高压（PH）的关系。方法：回顾性分析西南医科大学附属医院住院部2013年8月至2016年3月62例SSc 患者。收集患者相关资料，根据是否继发PH分为两组。统计学分析使用SPSS 17软件完成。结果：与未继发PH组相比，继发PH组血尿酸（P ＜0．01）、肺动脉收缩压（P ＜0．01）、心电图异常（P ＜0．01）和甲襞微循环异常（P ＜0．01）均高于前者，血白蛋白（P ＜0．05）低于前者；肺动脉收缩压与血尿酸值（r ＝0．26，P ＜0．01）及血白蛋白值（r ＝－0．28，P ＜0．05）相关；血尿酸在心电图异常组（P ＜0．01）和甲襞微循环异常组（P ＜0．01）均高于正常组。以血尿酸＞374μmol／L 作为预测SSc继发PH的界点，灵敏度为66．7％，特异度为84．0％。结论：血尿酸值可作为预测SSc继发PH的有效指标。