急性尿潴留对血清前列腺特异性抗原的影响

目的 :研究良性前列腺增生 (BPH)病人发生急性尿潴留时对血清前列腺特异性抗原 (PSA)的影响。　方法 :对 34例伴有急性尿潴留的BPH病人 ,于膀胱造瘘前及引流尿液 4 8h后分别检测血清PSA值 (放免法 )。　结果 :BPH伴急性尿潴留者血清PSA值为 (2 4 6± 16 1) μg/L(2 .6～ 4 5 .8μg/L) ,引流尿液 4 8h后血清PSA值降为(9.4± 6 .3) μg/L(1.7～ 16 .6 μg/L)。两者相比 ,差异有显著性 (P <0 .0 1)。 　结论 :急性尿潴留可使BPH病人血清PSA值显著升高。尿潴留缓解后 ,血清PSA值平均下降超过 5 0 %。

The Effect of Acute Urinary Retention on Serum Prostate Specific Antigen Concentration

OBJECTIVES: To study the effect of acute urinary retention on the serum prostate-specific antigen (PSA) concentration. METHODS: Blood samples from 34 benign prostatic hyperplasia (BPH) patients with acute urinary retention were drawn immediately before suprapubic cystomy and 48 hours after relief of urinary retention. Serum PSA concentrations were measured with radioimmunoassay. RESULTS: The mean serum PSA levels of BPH patients with acute urinary retention was (24.6 +/- 16.1) micrograms/L (range from 2.6 micrograms/L to 45.8 micrograms/L). Forty-eight hours after relief of urinary retention, the mean serum PSA levels declined to (9.4 +/- 6.3) micrograms/L (range from 1.7 micrograms/L to 16.6 micrograms/L). The difference was significant (P < 0.01). CONCLUSIONS: Acute urinary retention could dramatically increase the serum PSA value of patients with BPH. After relief of the urinary retention, the patients had a great than 50% decreased of PSA values.