Does Bioethics Need Ethical Theories?

The relationship between philosophy and bioethics remains a matter of perennial debate, but there does appear to be a consensus on one issue: whatever bioethics might want to borrow from philosophical ethics, it won't be normative theories. This essay argues that theories can have an important role to play in bioethics, though it might not be the one traditionally assumed by philosophers.

Adaptive replanning using cone beam CT for deformation of original CT simulation.

Background: During a course of radiation therapy, anatomical changes such as a decrease in tumour size or weight loss can trigger the need for repeating a computed tomography (CT) simulation scan in order to generate a new treatment plan. This adaptive approach requires a separate appointment for an additional CT scan which generates additional burden, cost, and radiation exposure for patients.

Case Presentation: Here, we present a case of a head and neck cancer patient who required palliative radiation for a large neck mass.

Defining the Role of Immunotherapy in the Curative Treatment of Locoregionally Advanced Head and Neck Cancer: Promises, Challenges, and Opportunities.

Recent advancements in the development of immunotherapies have raised the hope for patients with locally-advanced HNSCC (LA-HNSCC) to achieve improved oncologic outcomes without the heavy burden of treatment-related morbidity. While there are several ongoing late phase clinical trials that seek to determine whether immunotherapy can be effectively employed in the definitive setting, initial results from concurrent immuno-radiotherapy therapy trials have not shown strong evidence of benefit. Encouragingly, evidence from preclinical studies and early-phase neoadjuvant studies have begun to show potential pathways forward, with therapeutic combinations and sequences that intentionally spare tumor draining lymphatics in order to maximize the synergy between definitive local therapy and immunotherapy.

Evaluating predictive factors for toxicities experienced by head & neck cancer patients undergoing radiotherapy.

Purpose: The purpose of this study was to evaluate if HPV status serves as an independent predictor of early and late dysphagia outcomes when considered alongside standard patient characteristics and dose metrics for head and neck cancer patients treated with radiotherapy.

Methods And Materials: The age, sex, smoking history, cancer type (oropharyngeal vs non-oropharyngeal), HPV status, and early and late dysphagia outcomes were obtained for 99 retrospective head and neck cancer patients treated at our clinic with radiotherapy. Additionally for each patient, the mean radiation dose to the pharynx, superior/middle/inferior pharyngeal constrictor muscles, and cricopharyngeus was calculated.

Quality improvement intervention to reduce time to postoperative radiation in head and neck free flap patients.

Background: Best-practice guidelines for head and neck cancer patients advise postoperative radiation therapy (PORT) initiation within 6 weeks of surgery. We report our institutional experience improving timeliness of adjuvant radiation in free-flap patients.

Methods: Thirty-nine patients met inclusion criteria in the 2017-2019 study period.