Impact of Nutritional Status of Patients with Head and Neck Squamous Cell Carcinoma on the Expression Profile of Ghrelin, Irisin, and Titin.

The goal of this paper was the evaluation of the changes in the expression profile of irisin, ghrelin, and titin in the carcinoma tissue and in the blood of patients with head and neck squamous cell carcinoma (HNSCC), including determining the profile of their expression in relation to patient nutrition. The study included 56 patients with diagnosed squamous cell carcinoma of HNSCC in the T3 and T4 stages of the disease. Healthy control tissue specimens were collected from an area 10 mm outside the histologically negative margin. In turn, the blood and serum from the control group came from healthy volunteers treated for non-oncologic reasons (n = 70). The molecular analysis allowed us to determine the profile of irisin, ghrelin, and titin methylation, evaluate their expression on the level of mRNA (quantitative Reverse Transcription Polymerase Chain Reaction; qRT-PCR) and protein (Enzyme-Linked Immunosorbent Assay Reaction; ELISA) in the carcinoma tissue and the margin of healthy tissue, as well as in serum of patients in the study and control groups. At the start of our observations, a Body Mass Index (BMI) < 18.5 was noted in 42 of the patients, while six months after the treatment a BMI < 18.5 was noted in 29 patients. We also noted a decrease in the expression of irisin, ghrelin, and titin both on the level of mRNA and protein, as well as a potential regulation of their expression via DNA methylation. There is no convincing evidence that the proteins assayed in the present work are specific with regard to HNSSC.

Primary surgical treatment versus salvage surgery: Results of free flap reconstruction performed in 100 patients with oropharyngeal cancer.

This research sought to analyze the functional results of free flap reconstruction in two groups of patients with head and neck cancer: first group started with radiochemotherapy followed by reconstructive surgery, second group underwent initiative surgery. MATERIALS AND METHODS: In a group of 100 patients, surgery was used as the primary form of treatment in 55 (55%) patients, and the remaining 45 patients (45%) had chemoradiotherapy introduced first. Statistical analysis was performed with Statistica v. 12. The chi-square test and test of proportion were used for categorical data. Student's t-test was used for continuous data. Probability of survival was calculated using the Kaplan-Meier method where the censoring variable was time to death. To compare survival between cohorts, we used the Cox's test. The level of significance was set at p < 0.05. RESULTS AND CONCLUSIONS: Initial radiochemotherapy prior to surgical treatment indicated an increased risk of local tumor recurrence, flap degeneration, and other local complications.

Medial femoral condyle free flap for head and neck reconstruction.

PURPOSE OF REVIEW: The aim of this article is to review the literature on medial femoral condyle (MFC) free flap in head and neck reconstruction. RECENT FINDINGS: The MFC flap is a superb material for head and neck reconstruction, especially in smaller bony defects. As an alternative to fibular free flap, it presents many advantages. Combining the periosteal bone with skin and/or muscle paddle, the MFC flap is suitable for complex reconstructions with favorable healing process. Even though this flap has a longer history of orthopedic and traumatologic reconstructions, a number of cases in head and neck surgery have been recently reported. SUMMARY: The MFC flap has been successfully used to reconstruct various head and neck sites, from the orbit, maxilla, and mandible, to the laryngeal and tracheal scaffolds.

One-Step Laryngotracheal Reconstruction With Prefabricated Corticoperiosteal Flap.

Large airway reconstruction is difficult and requires a flap that will mirror the tissue variety. The main challenge is to keep the reconstruction stable and prevent collapse. In this report, we present a laryngotracheal reconstruction with a buccal mucosa-prefabricated medial femoral condyle free flap, after chondroma excision in a 1-step procedure. Functional results are promising and were confirmed by endoscopy and computed tomography examination 12 months postoperatively. This reconstruction-with-prefabrication technique, among others, may be used in the reconstruction of different regions like craniofacial bone defects, apart from larynx and trachea.