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Vascular permeability in HPV+ oropharyngeal cancers aids in fluorescent image-guided transoral robotic surgery using indocyanine green. | LitMetric

AI Article Synopsis

Article Abstract

Background: Indocyanine green (ICG) fluorescent image (FI)-guided surgery has demonstrated success in improving intraoperative visualization and tumor resections. The objectives were to evaluate the use of IGC in FI-guided transoral robotic surgery (TORS) and the underlying molecular mechanism.

Methods: HPV+ oropharyngeal squamous cell carcinoma (OPSCCa) patient (n = 10) undergoing TORS were enrolled in this prospective study. Participants received intravenous ICG. Excised tissues were evaluated for ICG accumulation, tumor demarcation, and pathological characteristics using In-vivo imaging system (IVIS), histology, and RNA sequencing.

Results: ICG accumulation was significantly increased in primary tumor and pathological lymph nodes compared with normal tissues (p < 0.001). IVIS was 91.3% accurate in identifying OPSCCa in excised tissues; the correlation between IVIS- and histologically determined tumor tissues was significant (R  = 0.8301; p = 0.001). Genes associated with vascular and angiogenic signaling pathways were significantly upregulated in OPSCCa tissues.

Conclusion: ICG effectively demarcates tumor margins in OPSCCa, due to the increased upregulation of genes associated with vascular permeability.

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Source
http://dx.doi.org/10.1002/hed.27384DOI Listing

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