Lack of Impact of Robotic Assisted Laparoscopic Radical Prostatectomy on Intraoperative Levels of Prostate Cancer Circulating Tumor Cells
2016
Purpose: While the significance of circulating tumor cells in clinically localized cancer remains controversial, it has been reported that surgical tumor manipulation can increase circulating tumor cells, including during open prostatectomy. To our knowledge it is unknown whether this cell shedding also occurs during minimally invasive prostatectomy, which minimizes tumor palpation and uses earlier vascular control. We tested the impact of robotic assisted laparoscopic radical prostatectomy on intraoperative circulating tumor cell levels.Materials and Methods: Circulating tumor cell counts were compared in peripheral blood specimens from 25 patients treated with robotic assisted laparoscopic radical prostatectomy preoperatively vs intraoperatively after prostate excision, in addition to 11 healthy blood donors. Circulating tumor cell detection was performed using EpCAM immunomagnetic enrichment and multiparametric flow cytometry quantification of viable EpCAM positive/prostate specific membrane antigen po...
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