比较晚期发现的后尿道瓣膜(PUV)患者和早期诊断者在膀胱和肾功能方面的差异。回顾性分析1986-2004年晚期诊断的36例男性PUV患者的病历资料。患儿诊断时平均年龄为8．8岁(5～14岁),其中20例在随访中行尿动力学检查,检查时的平均年龄为10．6(5～23)岁。选择19例年龄匹配且在5岁前得到诊断和治疗的PUV患儿作对照,同样在随访中行尿动力学检查,检查时的 Differences in bladder and renal function between late-stage posterior urethral valve (PUV) patients and early-stage diagnoses were compared. The clinical data of 36 male PUV patients diagnosed late in 1986-2004 were retrospectively analyzed. The mean age at diagnosis was 8.8 years (range, 5-14 years). Twenty of them were examined urodynamics at follow-up. The mean age at diagnosis was 10.6 (5-23) years. Nineteen age-matched PUV-matched children who were diagnosed and treated before the age of 5 were selected as controls. Urodynamic tests were also performed at follow-up