V4-07: Early experience of robotic salvage pelvic lymph node dissection in the Ga-68 PSMA PET scanning era

V4-07: Early experience of robotic salvage pelvic lymph node dissection in the Ga-68 PSMA PET scanning era

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INTRODUCTION

The success of aggressive approaches to biochemical recurrence following radical prostatectomy is dependent on the quality of imaging used to identify disease. Choline-based PET scanning has been the optimum imaging modality to assess this, but it has poor sensitivity at low levels of PSA, is expensive, and is bot widely available. 68Ga-PSMA PET/CT has recently been introduced and shows much promise for the assessment of recurrence following radical prostatectomy. Our aim is to assess the utility of salvage pelvic lymph node dissection in men with biochemical recurrence after radical prostatectomy selected by 68Ga-PSMA PET/CT.

METHODS

From July 2014 to October 2015 men with biochemical recurrence after radical prostatectomy demonstrating evidence of retroperitoneal or pelvic nodal disease recurrence on 68Ga-PSMA PET/CT treated with salvage lymph node dissection were retrospectively selected for this analysis. Biochemical recurrence was defined as postop PSA ?0.2 ng/ml or rising PSA below this level if leading to the use of salvage therapy. Biochemical response was defined as PSA