Meares检查法诊断价值的探讨

THE DIAGNOSTIC VALUE OF MEARES METHOD QUESTIONED

目的探讨Ｍｅａｒｅｓ检查法诊断慢性前列腺炎的价值。方法对７７例慢性前列腺炎患者用Ｍｅａｒｅｓ法行细菌定位，并于初段尿（ＶＢ１）前取尿道拭子Ⅰ，中段尿（ＶＢ２）后取尿道拭子Ⅱ行细菌培养。对其中４０例患者行经会阴前列腺穿刺取前列腺液培养细菌。结果拭子Ⅰ、Ⅱ细菌符合率９６％，拭子Ⅱ、前列腺液细菌符合率８８％。用Ｍｅａｒｅｓ法４０例患者前列腺液细菌阳性率８５％，用穿刺法细菌阳性率仅１０％。二者有显著差异。结论Ｍｅａｒｅｓ法不能避免细菌污染前列腺液。

Objective To reassess the value of Meares method for diagnosing chronic prostatitis. Methods Bacterial localization patterns were determined in 77 cases of chronic prostatitis according to Meares method.Additional cultures were made of urethral swab Ⅰ (taken before first-voided urine VB1) and urethral swab Ⅱ (taken after the midstream aliquot VB2).In 40 of the patients,transperinal needle aspiration was performed to obtain EPS for bacterial culture as the diagnostic standard. Results The rate of correspondency in bacteria species was 96% between swab Ⅰ and swab Ⅱ,and was 88% between swab Ⅱ and EPS.The rate of positive culture of EPS obtained by Meares method was 85%,whereas that by needle aspiration was only 10%,with the difference very significant (P<0.01). Conclusion Meares method can not rid the EPS of contamination as it passes the urethra and hence,its value is doubtful for diagnosing bacterial prostatitis.