Abstract:Objective: To investigate the correlation between the positive rate of prostate puncture biopsy and the malignant degree of tumor in patients with metabolic syndrome (MS) in PSA grey zone. Methods: 650 patients with PSA in 4~10 μg/L underunderwent prostate biopsy in the Department of Urology,Beijing Hospital from January 1998 to December 2017, the clinical data of patients were analyzed retrospectively. The patients were divided into MS group (n=400) and non-MS group (n=250). The influencing factors of positive prostate biopsy and the correlation analysis with tumor malignancy were analyzed. Results: In MS group, 170 cases were diagnosed as prostate cancer, the positive rate of prostate puncture was 42.5% (170/400).There were 8(4.71%) low-risk cases, 34 (20.00%) medium-risk cases and 128 (75.29%) high-risk cases. 42 cases were diagnosed prostate cancer in non MS group, the positive rate of prostate puncture was 16.80% (42/250). There were 11 (26.19%) low-risk cases, 14 (33.33%) medium-risk cases and 17 (40.47%) high-risk cases. The positive rate of puncturing prostate in MS group was higher than that of non MS group (P < 0.001); the detection rate of low-risk prostate cancer in MS group was lower than that of non MS group (P < 0.001); the detection rate of medium-risk prostate cancer was lower than that of non MS group (P = 0.098); the detection rate of high-risk prostate cancer in MS group was higher than that of non MS group (P < 0.001).Logistics regression analysis indicated age, BMI, hyperlipemia and prostate volume were independent factors affected the positive rate of prostate biopsy in PSA 4~10 μg/L. Conclusion: The positive rate of prostate biopsy in MS patients is higher than that of non-MS patients. MS can increase the malignant degree and risk of metastasis of prostate cancer.
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