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Title: PSA request analysis: how should this be interpreted? What may be overlooked
Authors: Ayyildiz, Ali
Ayyildiz, Sema Nur
Benli, Erdal
Cirakoglu, Abdullah
Ordu Üniversitesi
PSA; laboratory; requested analysis
Issue Date: 2016
Abstract: Objective: Prostate specific antigen is widely used for the diagnosis, treatment, and follow-up of prostate cancer. However, despite being organ-specific, PSA is not specific to cancer. As some patients with elevated PSA level have normal biopsy results and some others with low PSA levels have cancer diagnosed in biopsy examination, PSA creates diagnostic uncertainty both for clinicians and patients. Moreover, different PSA results received for the same subject at separate time points as well as small-large fluctuations in PSA levels perturb both sides. In a setting where there are so many unknowns we have PSA in our hands without any restrictions for ordering it. This study analyzed PSA orders, patient traffic, and economic burden within a 6-year period. Methods: The number of PSA tests and patient outcomes at a training and research hospital between October 2006 and May 2013 were evaluated. Results: Of 12107 tPSA orders, 73.6% were ordered by the urology clinic and 26.4% orders were made from other outpatient clinics. When patients at follow-up for prostate cancer are excluded because their tPSAs have to be more commonly checked, we detected that 28.22% of tests were ordered at intervals of less than 1 year. The average tPSA testing frequency was 91.84 +/- 1.21 days (0-330). The number of patients younger than 40 years who were tested for tPSA was 287. Of these, 25.43% were ordered by the urology clinic and the remaining by other medical branches. Conclusion: A state of chaos surrounds PSA order and interpretation. Neither patients nor physicians are aware of PSA-related outcomes. Therefore, each hospital should hold sessions on PSA testing and inform physicians about them. Furthermore, a detailed public education should be provided and seminars should be organized at the national level.
Appears in Collections:Cerrahi Tıp Bilimleri

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