Prior radiotherapy significantly increases the risk of perioperative complications and wound infections following clean-contaminated head and neck surgical procedures. Other factors reflecting the complexity of the procedure also influence the overall complication rate.
Despite therapeutic advancements, there has been little change in the survival of patients with head and neck squamous cell carcinoma (HNSCC). Recent results suggest that cancer-associated fibroblasts (CAF) drive progression of this disease. Here, we report that autophagy is upregulated in HNSCC-associated CAFs where it is responsible for key pathogenic contributions in this disease. Autophagy is fundamentally involved in cell degradation, but there is emerging evidence that suggests it is also important for cellular secretion. Thus, we hypothesized that autophagy-dependent secretion of tumor-promoting factors by HNSCC-associated CAFs may explain their role in malignant development. In support of this hypothesis, we observed a reduction in CAF-facilitated HNSCC progression after blocking CAF autophagy. Studies of cell growth media conditioned after autophagy blockade revealed levels of secreted IL-6, IL-8 and other cytokines were modulated by autophagy. Notably, when HNSCC cells were co-cultured with normal fibroblasts they upregulated autophagy through IL-6, IL-8 and bFGF. In a mouse xenograft model of HNSCC, pharmacological inhibition of Vps34, a key mediator of autophagy, enhanced the antitumor efficacy of cisplatin. Our results establish an oncogenic function for secretory autophagy in HNSCC stromal cells that promotes malignant progression.
Advanced-stage oropharynx and supraglottis cancers managed by transoral robotic surgery with adjuvant therapy resulted in significantly better swallowing MDADI outcomes at the follow-up visits at 6 and 12 months compared with tumors treated by primary chemoradiotherapy.
To compare our experience with the osteocutaneous radial forearm free flap (group 1) (n=108) with other commonly used osteocutaneous free flaps (group 2) (n=56) such as the fibula and scapula in single-stage oromandibular reconstruction.Design: Retrospective case review.Setting: Tertiary-care academic medical center.Patients: One hundred sixty-three consecutive patients who underwent 164 mandibular reconstructions with osteocutaneous free flaps.Main Outcome Measures: Assessment of preoperative and intraoperative variables for both groups. We compared recipient-site complication rate, intensive care unit stay, total hospital stay, and postoperative function.
Results:The most common donor site used was the radius (n=108 [66%]), followed by the fibula (n=36 [22%]) and scapula (n = 20 [12%]). Mean follow-up was 29 months (range, 1-116 months). Group 2 patients had
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