Clinical and pathological study on the correlation between serum prostate specific antigen and benign prostatic hyperplasia / 中华泌尿外科杂志

ABSTRACT

Objective To evaluate the clinical and pathological factors that may influence serum prostate specific antigen(PSA)level in patients with benign prostatic hyperplasia(BPH).Methods A total of 561 cases of BPH diagnosed by pathological examination following operation were analyzed retrospec- tively.The patients'mean age was(68.3?6.3)years.The International Prostate Symptom Score(IPSS)was 21.1?7.4;the quality of life(QOL)was 4.5?0.8;Qmax was(7.3?3.3)ml/s;prostate volume(PV) was(69.8?36.8)ml;andpost-void residue(PVR)was(81.9?105.8)ml.Results Of 561 cases,223 cases(39.8%)had serum PSA level at 4-10 ng/ml,and 91 cases(16.2%),over 10 ng/ml.The level of serum PSA was not significantly associated with age,IPSS,QOL,Qmax and PVR(r=0.08,0.03,0.06,0.04 and 0.09,respectively;P＞0.05),but significantly associated with prostate volume of BPH(r=0.42,P＜0.01).The level of serum PSA was significantly elevated in BPH patients with enlarged prostate volume (F=93.45,P＜0.05)and the history of acute urinary retention(x~2= 59.1,P＜0.01).Additionally,a significantly increased PSA level was noted in tissue specimens with glandular hyperplasia(x~2=16.14,P＜0.01)or necrotic loci in BPH patients(x~2=36.06,P＜0.01).Conclusions An elevated serum PSA level was observed in more than 50% of BPH patients undergoing surgical resection.Enlarged prostate volume,the history of acute urinary,retention,and tissue specimens with glandular hyperplasia or necrotic foci are considered to be the main causes leading to elevated PSA level in BPH patients.