Investigation of serum psa in men above 45 years old with lower urinary tract symptoms

Nguyen Hoai Bac, Ha Hong Cuong

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Abstract

PSA is a unique antigen of the prostate. However, PSA is not specific for prostate cancer. Hence, it is important to determine the distribution of nomal PSA level. There is a lack of studies on PSA level of Vietnamese men and the initial database of PSA profile of Vietnamese men for future research is insufficient. For these reasons, we conducted a study on serum PSA level in men above 45 years old with lower urinary tract symptoms at Hanoi Medical University Hospital to investigate the relationship between PSA level and clinical and subclinical characteristics. Our results showed that the mean level of PSA was 1.85 ng/ml with the majority of patients had the PSA level below 4 ng/ml. The level of PSA elevated in accordance with an increase in age, prostate volume and with the presence of voiding symptoms. There was a correlation between age, prostate volume and PSA level. For each year increase in age and each 1 ml increase in prostate volume would result in 0.09 ng/ml and 0.11 ng/ml elevation of PSA concentration, respectively. In conclusion, in clinical practice, the individualization of PSA level requires the assessment of voiding symptoms, age and prostate volume.

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