原发性肺动脉高压症 (ＰＰＨ)是一种以进行性肺动脉高压最终导致严重右心室衰竭伴心输出量明显减少和轻度低氧为特征的疾病。作者研究了血清尿酸水平与ＰＰＨ严重度的关系以及血清尿酸水平与ＰＰＨ患者死亡率是否相关。方法　根据国立卫生研究所的标准确定不能用任何继发性原因 Primary pulmonary hypertension (PPH) is a condition characterized by progressive pulmonary hypertension that eventually leads to significant reductions in right ventricular failure with cardiac output and mild hypoxia. The authors investigated the relationship between serum uric acid levels and the severity of PPH and whether serum uric acid levels are associated with mortality in patients with PPH. Methods According to the National Institutes of Health, no secondary causes were identified