黄顺坛 唐顺利 孙刚
[摘要]目的 探讨前列腺特异性抗原(PSA)及相关参数对PSA<4.0 ng/ml前列腺癌的诊断价值。方法 回顾性分析2006年1~12月广州医科大学第六附属医院和广东医科大学附属中山医院收治的PSA位于PSA<4.0 ng/ml行前列腺穿刺活检病例320例,根据穿刺活检病理结果将其分为前列腺癌(PCa)组53例和前列腺增生(BPH) 组267例,收集患者的血清总前列腺特异抗原(tPSA)、游离前列腺特异抗原(fPSA)、f/tPSA及病理资料,按照f/tPSA比值分成5个区间0.01~0.08、0.09~0.16、0.17~0.24、0.25~0.32、0.33~0.40,比较区间PCa检出率。结果 两组患者的t-PSA、f-PSA值比较,差异无统计学意义(P>0.05);PCa组患者的f/t PSA值低于BPH组,差异有统计学意义(P<0.05)。两组患者在f/t PSA 0.09~0.16、0.17~0.24、0.25~0.32的PCa检出率比较,差异有统计学意义(P<0.05),而两组患者在f/t PSA 0.01~0.08、0.33~0.40的PCa检出率比较,差异无统计学意义(P>0.05)。结论 PSA及PSA相关指标对PSA<4.0 ng/ml前列腺癌患者具有较好的诊断价值。
[关键词]前列腺特异性抗原;游离前列腺特异抗原与总前列腺特异抗原比值;前列腺癌
[中图分类号] R697.3 [文献标识码] A [文章编号] 1674-4721(2018)7(a)-0077-03
[Abstract]Objective To investigate the diagnostic value of prostate specific antigen (PSA) and its related parameters for prostate cancer with PSA<4.0 ng/ml.Methods A total of 320 cases of prostate biopsy with PSA<4.0 ng/ml admitted to the 6th affiliated hospital of Guangzhou medical university and Zhongshan hospital of Guangdong medical university from January to December 2016 were retrospectively analyzed.According to the pathological results of the biopsy, they were divided into 53 cases of prostate cancer (PCA) and 267 cases of benign prostatic hyperplasia (BPH). The total prostate specific antigen (tPSA),free prostate specific antigen (fPSA), f/t PSA and pathological data were collected and divided into 5 intervals of 0.01-0.08, 0.09-0.16 and 0.17 according to the f/t PSA ratio.Results There was no significant difference between the two groups in tPSA and fPSA values (P>0.05).The f/t PSA value in PCA group was lower than that in BPH group, the difference was statistically significant (P<0.05). The PCA detection rates of the two groups of patients in f/t PSA 0.09-0.16,0.17-0.24,0.25-0.32 were statistically significant (P<0.05),while the PCA detection rates of the two groups of patients in f/t PSA 0.01-0.08,0.33-0.40 were not statistically significant (P>0.05).Conclusion PSA and PSA-related parameters have a good diagnostic value for the patients with prostate cancer with PSA<4.0 ng/ml.
[Key words]Prostate specific antigen;Ratio of free prostate-specific antigen to total prostate-specific antigen;Prostate cancer
前列腺癌(PCa)是老年男性常見的恶性肿瘤,近10年发病率上升明显,在我国PCa 成居前十位男性恶性肿瘤,早发现、早诊断、早治疗对患者的长期存活率至关重要[1-3]。自1970年Ablin等发现前列腺特异抗原(PSA)以来,PSA已成为前列腺癌的临床诊断、治疗、随访中最重要的肿瘤标志物[1],长期以来,4.0 ng/ml 作为区分PCa及非 PCa 的界值而被广泛接受,但在PSA<4.0 ng/ml 的患者中,PCa并不少见,这类PCa患者有65%为多发病灶,36%具有高度潜在恶性,甚至当PSA<0.5 ng/ml时仍可能出现PCa[4-6]。本文即探讨PSA及相关参数对PSA<4.0 ng/ml前列腺癌的诊断价值。现报道如下。
1 資料与方法
1.1 一般资料
回顾性分析2006年1~12月广州医科大学第六附属医院和广东医科大学附属中山医院收治的PSA位于PSA<4.0 ng/ml行前列腺穿刺活检病例320例,年龄62~87岁,平均(71.1±6.2)岁。根据穿刺活检病理结果将其分为前列腺癌(PCa)组53例和前列腺增生(BPH) 组267例,所有血PSA检查结果均为穿刺前1个月内检测值。本次研究通过医院医学伦理委员会审核通过。两组患者年龄、病程等一般资料的比较,差异无统计学意义(P>0.05)(表1),具有可比性。
1.2纳入标准与排除标准
纳入标准:①患者PSA<4.0 ng/ml;②无前列腺手术史;③行前列腺穿刺活检,有明确病理结果。排出标准:①长期服用5а-还原酶抑制剂;②泌尿生殖系感染者;……