ObjectiveTo determine the diagnostic accuracy of the hybrid tracer indocyanine green (ICG)-Technetium-99 m(Tc-99m)-nanocolloid compared to sequential tracers of Tc-99m-nanocolloid and free-ICG in... Show moreObjectiveTo determine the diagnostic accuracy of the hybrid tracer indocyanine green (ICG)-Technetium-99 m(Tc-99m)-nanocolloid compared to sequential tracers of Tc-99m-nanocolloid and free-ICG in detecting tumor-positive lymph nodes (LN) during primary surgery in prostate cancer (PCa) patients.IntroductionImage-guided surgery strategies can help visualize individual lymphatic drainage patterns and sentinel lymph nodes (SLNs) in PCa patients. For lymphatic mapping radioactive, fluorescent and hybrid tracers are being clinically exploited. In this prospective randomized phase II trial, we made a head-to-head comparison between ICG-Tc-99m-nanocolloid (hybrid group) and Tc-99m-nanocolloid and subsequent free-ICG injection (sequential group).MethodsPCa patients with a >5% risk of lymphatic involvement according to the 2012 Briganti nomogram and planned for prostatectomy were included and randomized (1:1) between ultrasound-guided intraprostatic tracer administration of ICG-Tc-99m-nanocolloid (n = 69) or Tc-99m-nanocolloid (n = 69) 5 h before surgery. Preoperative lymphoscintigraphy and SPECT/CT were performed to define the locations of the SLNs. Additionally, all participants in the sequential group received an injection of free-ICG at time of surgery. Subsequently, all (S)LNs were dissected using fluorescence guidance followed by an extended pelvic lymph node dissection (ePLND). The primary outcome was the total number of surgically removed (S)LNs and tumor-positive (S)LNs.ResultsThe total number of surgically removed (S)LN packages was 701 and 733 in the hybrid and sequential groups, respectively (p = 0.727). The total number of fluorescent LNs retrieved was 310 and 665 nodes in the hybrid and sequential groups, respectively (p < 0.001). However, no statistically significant difference was observed in the corresponding number of tumor-positive nodes among the groups (44 vs. 33; p = 0.470). Consequently, the rate of tumor-positive fluorescent LNs was higher in the hybrid group (7.4%) compared to the sequential group (2.6%; p = 0.002), indicating an enhanced positive predictive value for the hybrid approach. There was no difference in complications within 90 days after surgery (p = 0.78).ConclusionsThe hybrid tracer ICG-Tc-99m-nanocolloid improved the positive predictive value for tumor-bearing LNs while minimizing the number of fluorescent nodes compared to the sequential tracer approach. Consequently, the hybrid tracer ICG-Tc-99m-nanocolloid enables the most reliable and minimal invasive method for LN staging in PCa patients. Show less
A proportion of patients with endometrial carcinoma are currently over- or undertreated due to the lack of reproducibility of some of the traditional factors used to assess risk of recurrence and... Show moreA proportion of patients with endometrial carcinoma are currently over- or undertreated due to the lack of reproducibility of some of the traditional factors used to assess risk of recurrence and death due to the cancer, aswell as intrinsic differences in the biological background of tumours within the same risk category. This underlinesthe need for additional biomarkers for the improvement of current risk classification systems and adjuvant treatment selection. In this context, the molecular endometrial carcinoma classification offers an opportunity to categorize tumours according to their molecular background, resulting in more biologically homogeneous groups of patients, with a more precise prognostic and, possibly, predictive value. However, before clinical implementation is possible, information regarding the interpretation of non-hotspot POLE exonuclease domain mutations, aswell as the molecular background and clinical outcome of EC with more than one molecular classifying feature (multiple classifier EC) is needed in order to obtain a reproducible and accurate classification system. Additionally, the integration of the molecular subgroups with clinicopathological features has proven to have a strong prognostic value in intermediate tohigh-risk and unselected cohorts, highlighting its potential to refine prognosis in high-risk patients and perhaps its predictive value. Finally, not all women in the molecularlyprofiled EC cohorts published were staged by lymphadenectomy and most patients had received adjuvant treatment. These features could have influenced the prognostic value of the molecular subgroups. The aims of this thesis were:1) To refine the molecular profiling of endometrial carcinoma by addressing essential remaining questionson the interpretation of POLE variants and characterization of multiple classifier ECs.2) To elucidate the prognostic role of the molecular subgroups in high-risk patients.3) To evaluate the value of the molecular classification to guide adjuvant treatment decisions.4) To investigate the natural behaviour of the molecular EC subgroups among patients staged with lymphadenectomy or not receiving adjuvant treatment. Show less
Purpose The aim of the present study is to investigate the impact of the near-infrared (NIRF) technology with indocyanine green (ICG) in robotic urologic surgery by performing a systematic... Show morePurpose The aim of the present study is to investigate the impact of the near-infrared (NIRF) technology with indocyanine green (ICG) in robotic urologic surgery by performing a systematic literature review and to provide evidence-based expert recommendations on best practices in this field. Methods All English language publications on NIRF/ICG-guided robotic urologic procedures were evaluated. We followed the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analyses) statement to evaluate PubMed(R), Scopus(R) and Web of Science (TM) databases (up to April 2019). Experts in the field provided detailed pictures and intraoperative video-clips of different NIRF/ICG-guided robotic surgeries with recommendations for each procedure. A unique QRcode was generated and linked to each underlying video-clip. This new exclusive feature makes the present the first "dynamic paper" that merges text and figure description with their own video providing readers an innovative, immersive, high-quality and user-friendly experience. Results Our electronic search identified a total of 576 papers. Of these, 36 studies included in the present systematic review reporting the use of NIRF/ICG in robotic partial nephrectomy (n = 13), robotic radical prostatectomy and lymphadenectomy (n = 7), robotic ureteral re-implantation and reconstruction (n = 5), robotic adrenalectomy (n = 4), robotic radical cystectomy (n = 3), penectomy and robotic inguinal lymphadenectomy (n = 2), robotic simple prostatectomy (n = 1), robotic kidney transplantation (n = 1) and robotic sacrocolpopexy (n = 1). Conclusion NIRF/ICG technology has now emerged as a safe, feasible and useful tool that may facilitate urologic robotic surgery. It has been shown to improve the identification of key anatomical landmarks and pathological structures for oncological and non-oncological procedures. Level of evidence is predominantly low. Larger series with longer follow-up are needed, especially in assessing the quality of the nodal dissection and the feasibility of the identification of sentinel nodes and the impact of these novel technologies on long-term oncological and functional outcomes. Show less
Poel, H.G. van der; Meershoek, P.; Grivas, N.; KleinJan, G.; Leeuwen, F.W.B. van; Horenblas, S. 2017
