scholarly journals Indocyanine green is superior to blue colorimetric method for identifying sentinel lymph nodes during laparoscopic surgery for uterine malignancies: a pilot study

2020 ◽  
Vol 41 (2) ◽  
pp. 176
2017 ◽  
Vol 27 (4) ◽  
pp. 805-812 ◽  
Author(s):  
Philipp Soergel ◽  
Hermann Hertel ◽  
Anna Kaarina Nacke ◽  
Rüdiger Klapdor ◽  
Thorsten Derlin ◽  
...  

ObjectiveNowadays, sentinel diagnostic is performed using technetium 99m (99mTc) nanocolloid as a radioactive marker and sometimes patent blue. In the last years, indocyanine green has been evaluated for sentinel diagnostic in different tumor entities. Indocyanine green is a fluorescent molecule that emits a light signal in the near-infrared band after excitation. Our study aimed to evaluate indocyanine green compared with the criterion-standard99mTc-nanocolloid.MethodsWe included patients with primary, unifocal vulvar cancer of less than 4 cm with clinically node-negative groins in this prospective trial. Sentinel diagnostic was carried out using99mTc-nanocolloid, indocyanine green, and patent blue. We examined each groin for light signals from the near-infrared band, for radioactivity, and for blue staining. A sentinel lymph node was defined as a99mTc-nanocolloid–positive lymph node. All sentinel lymph nodes and all additional blue or fluorescent lymph nodes were excised and tested and then sent for histologic examination.ResultsIn all, 27 patients were included in whom we found 91 sentinel lymph nodes in 52 groins. All these lymph nodes were positive for indocyanine green, also giving a sensitivity of 100% (95% confidence interval [CI], 96.0%–100%) compared with99mTc-nanocolloid. Eight additional lymph nodes showed indocyanine green fluorescence but no99mTc positivity, so that the positive predictive value was 91.9% (95% confidence interval, 84.6%–96.5%). In 1 patient, a false-negative sentinel missed by all 3 modalities was found.ConclusionsOur results show that indocyanine green is a promising approach for inguinal sentinel identification in vulvar cancer with a similar sensitivity as radioactive99mTc-nanocolloid and worth to be evaluated in further studies.


2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Chengyue Li ◽  
Xiaochun Xu ◽  
Nathan McMahon ◽  
Omar Alhaj Ibrahim ◽  
Husain A. Sattar ◽  
...  

Purpose. Paired-agent molecular imaging methods, which employ coadministration of an untargeted, “control” imaging agent with a targeted agent to correct for nonspecific uptake, have been demonstrated to detect 200 cancer cells in a mouse model of metastatic breast cancer. This study demonstrates that indocyanine green (ICG), which is approved for human use, is an ideal control agent for future paired-agent studies to facilitate eventual clinical translation. Methods. The kinetics of ICG were compared with a known ideal control imaging agent, IRDye-700DX-labeled antibody in both healthy and metastatic rat popliteal lymph nodes after coadministration, intradermally in the footpad. Results. The kinetics of ICG and antibody-based imaging agent in tumor-free rat lymph nodes demonstrated a strong correlation with each other (r = 0.98, p<0.001) with a measured binding potential of −0.102 ± 0.03 at 20 min postagent injection, while the kinetics of ICG and targeted imaging agent shows significant separation in the metastatic lymph nodes. Conclusion. This study indicated a potential for microscopic sensitivity to cancer spread in sentinel lymph nodes using ICG as a control agent for antibody-based molecular imaging assays.


2017 ◽  
Vol 49 (4) ◽  
pp. 165-170 ◽  
Author(s):  
Stephanie Rauch ◽  
Anton Haid ◽  
Zerina Jasarevic ◽  
Christoph H. Saely ◽  
Alexander Becherer ◽  
...  

2018 ◽  
Vol 29 (2) ◽  
pp. 377-381 ◽  
Author(s):  
V Lago ◽  
P Bello ◽  
B Montero ◽  
L Matute ◽  
P Padilla-Iserte ◽  
...  

IntroductionThere is limited evidence favoring the use of the sentinel lymph node technique in ovarian cancer, and no standardized approach has been studied. The objective of the present pilot study is to determine the feasibility of the sentinel lymph node technique by applying a clinical algorithm.MethodsPatients with confirmed ovarian cancer were included. 99mTc and indocyanine green were injected into the ovarian and infundubulo-pelvic ligament stump. A gamma probe and near-infrared fluorescence imaging were used for sentinel lymph node detection.ResultsThe sentinel lymph node technique was performed in ten patients with a detection rate in the pelvic and/or para-aortic region of 100%. The tracer distribution rates of sentinel lymph nodes in the pelvic and para-aortic regions were 87.5% and 70%, respectively.ConclusionThe detection of sentinel lymph nodes in early-stage ovarian cancer appears to be achievable. Based on these results, a clinical trial entitled SENTOV (SENtinel lymph node Technique in OVarian cancer) will be performed.


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