Development and validation of a novel TNM staging N-classification of oral cavity squamous cell carcinoma.

Background: For oral cavity squamous cell carcinoma (OSCC), extent of extranodal extension (ENE) (minor, ≤2 mm; major, >2 mm) is differentially prognostic, whereas limitations exist with the 8th edition of American Joint Committee on Cancer/International Union Against Cancer TNM N-classification (TNM-8-N).

Methods: Resected OSCC patients at four centers were included and extent of ENE was recorded. Thresholds for optimal overall survival (OS) discrimination of lymph node (LN) features were established.

Postoperative opioid use following head and neck endocrine surgery: A multi-center prospective study.

Background: Opioid abuse is widespread in North America and the over-prescription of opioids are a contributing factor. The goal of this prospective study was to quantify over-prescription rates, evaluate postoperative experiences of pain, and understand the impact of peri-operative factors such as adequate pain counseling and use of non-opioid analgesia.

Methods: Consecutive recruitment of patients undergoing head and neck endocrine surgery was undertaken from January 1st 2020 to December 31st 2021 at four Canadian hospitals in Ontario and Nova Scotia.

Battle of the axes: simulation-based assessment of fine needle aspiration biopsies for thyroid nodules.

Importance: Ultrasound-guided fine-needle aspiration biopsies (UGFNA) play a crucial role in the diagnosis of thyroid nodules. There are two techniques for performing an UGFNA: short-axis technique and long-axis technique. There is sparsity in the literature regarding the differences between these two techniques.

Projected cutting guides using an augmented reality system to improve surgical margins in maxillectomies: A preclinical study.

Background: Positive margins have been reported up to 80% in advanced maxillary cancers. Intraoperative navigation (IN) aims to improve margins, but provides a two-dimensional view of a registered instrument without anticipating any cutting directions, and the information is displayed in monitors outside surgical field. Augmented Reality (AR) can delineate margins while addressing the gaze-toggling drawback of IN.

Augmented Reality and Intraoperative Navigation in Sinonasal Malignancies: A Preclinical Study.

Objective: To report the first use of a novel projected augmented reality (AR) system in open sinonasal tumor resections in preclinical models and to compare the AR approach with an advanced intraoperative navigation (IN) system.

Methods: Four tumor models were created. Five head and neck surgeons participated in the study performing virtual osteotomies.

Out-of-pocket costs associated with head and neck cancer treatment.

Background: Out-of-pocket costs (OOPC) associated with treatment have significant implications on quality of life and survival in cancer patients. Head and neck cancer patients face unique treatment-related challenges, but to date OOPC have been understudied in this population.

Aims: This study aims to identify and measure OOPC for patients with head and neck cancer (HNC) in Ontario.