Authors: Cormac Farrelly Priti Lal Scott O Trerotola Gregory J Nadolski Micah M Watts Catherine Mc Gorrian Thomas J Guzzo
Publish Date: 2016/03/08
Volume: 39, Issue: 5, Pages: 724-731
Abstract
To correlate prostatespecific antigen PSA free to total PSA percentage fPSA and prostatic acid phosphatase PAP levels from peripheral and pelvic venous samples with prostatectomy specimens in patients with prostate adenocarcinoma and borderline elevation of PSAIn this prospective institutional review board approved study 7 patients with biopsy proven prostate cancer had a venous sampling procedure prior to prostatectomy mean 32 days range 1–7 Venous samples were taken from a peripheral vein PVS the right internal iliac vein a deep right internal iliac vein branch left internal iliac vein and a deep left internal iliac vein branch Venous sampling results were compared to tumour volume laterality stage and grade in prostatectomy surgical specimensMean PVS PSA was 429 range 23–6 ng/ml PSA and PAP values in PVS did not differ significantly from internal iliac or deep internal iliac vein samples p 005 fPSA was significantly higher in internal iliac p = 0004 and deep internal iliac p = 0003 vein samples compared to PVS One of 7 patients had unilateral tumour only This patient with left–sided tumour had a fPSA of 6 6 6 14 and 12 in his peripheral right internal iliac deep right internal iliac branch left internal iliac and deep left internal iliac branch samples respectively There were no adverse eventsfPSA unlike total PSA or PAP is significantly higher in pelvic vein compared to peripheral vein samples when prostate cancer is present Larger studies including patients with higher PSA values are warranted to further investigate this counterintuitive findingThis study was funded by a 15000 US Dollar seed research grant from Roche diagnostics F Hoffmann La Roche Ltd Author A declares no other potential conflict of interest Authors Priti Lal Micah M Watts Catherine Mc Gorrian and Thomas J Guzzo declare that they have no conflicts of interest Author Scott O Trerotola declares grants from Vascular Pathways personal fees from Bard Peripheral Vascular personal fees from Orbimed personal fees from Teleflex personal fees from Cook personal fees from WL Gore personal fees from Lutonix and personal fees from Medcomp These are all outside the submitted work and there is no conflict of interest Author Gregory J Nadolski declares grants from Guerbet LLC This is outside the submitted work and there is no conflict of interestAll procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards
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