Near-infrared heating of skin to delineate non-melanoma skin cancer lesions: A pilot study.

BACKGROUND: Surgical excision is a mainstay of treatment for non-melanoma skin cancer (NMSC); improving margin delineation can reduce the need for further monitoring/treatment. The objective of this pilot study was to determine if near-infrared radiation (NIR) application to skin causes visible changes in normal and NMSC skin, to help delineate margins. MATERIALS/METHODS: Eleven biopsy-proven NMSC lesions were included. The skin was then heated under a 175W NIR heating bulb; margins were traced onto acetate film before and after heating. Lesions were then randomly assigned to excision based on pre- or post-heating margins. Composite images were generated by overlaying the heat and no-heat lesion contours. All specimens were sent for histopathology. RESULTS: The range of closest margins in the control group was 2.0-3.0 mm with a median of 2.0 mm; the range in the intervention group was 4.0-9.0 mm with a median of 5.0 mm. Composite images showed larger heat contours when the initial lesion was larger. There was a statistically significant difference between the two groups. Overall, NIR light caused visible hyperaemia to skin, and more intense erythema to malignant skin lesions. CONCLUSION: Near-infrared light may have use in an outpatient setting for skin cancer delineation, possibly reducing the rate of positive margins.

Open and Thoracoscopic Aortopexy for Airway Malacia in Children: 15 Year Single Centre Experience.

OBJECTIVES: The objective was to report and analyse the characteristics and results of open aortopexy and thoracoscopic aortopexy for the treatment of airway malacia in a paediatric population. METHODS: We report a retrospective consecutive case series of paediatric patients undergoing aortopexy for the treatment of airway malacia at a quaternary referral centre between December 2006 and January 2021. Outcome measures included days to extubation, continued need for non-invasive ventilation, further intervention in the form of tracheostomy and death. RESULTS: 169 patients underwent aortopexy: 147 had open procedures (135 via median/limited median sternotomy and 12 thoracotomy) and 22 thoracoscopic. Mean follow up was 8.46 yrs (range 1-20 yrs). Most common site of airway malacia was the trachea (n = 106, 62.7 %), and 48 (28.4 %) had additional involvement at the bronchi with tracheobronchomalacia (TBM). 15 (8.9 %) had bronchomalacia (BM) only. Incidence of bronchial disease was lower in the thoracoscopic than open group (13.6 % vs 40.82 %; p < 0.0001). Mean time to extubation was 1.45 days, 2.59 days, 5.23 days in tracheomalacia, TBM and BM groups, respectively (p = 0.0047). Mean time to extubation was 1.35 days, 2 days, 3.67 days, and 5 days in patients with external vascular compression, TOF/OA, primary airway malacia, and laryngeal reconstruction, respectively (p = 0.0002). There were 21 deaths across the cohort, and all were in the open group. 71.4 % (n = 15) had bronchial involvement of their airway malacia. CONCLUSIONS: Open and thoracoscopic aortopexy are effective treatments for airway malacia in children. We have identified that involvement of the bronchi is a risk factor for adverse outcomes, and the optimum treatment for this patient cohort is still debatable. LEVEL OF EVIDENCE: IV. TYPE OF STUDY: Retrospective Study.

Influenza immunization practices and policies for health care students in Canada.

BACKGROUND: Influenza vaccine is recommended for all health care providers including health care students. Little is known about how health care student programs provide information about influenza vaccination to their students, deliver vaccines and document their vaccination status. METHODS: A mixed-methods approach was used and included key informant interviews of program coordinators for health care student programs in Halifax (Nova Scotia) and a national survey of program coordinators of health care student programs across Canada. RESULTS: All 21 coordinators of programs that had students placed at the IWK Health Centre (Halifax, Nova Scotia) during the influenza season were interviewed. Surveys were completed by 93 (36.3%) of 256 eligible coordinators representing 134 different programs (response rate 52.3%). Most programs encouraged seasonal influenza vaccination but only 28 (20.9%) required it. None of the Halifax programs delivered influenza vaccine and most preferred a coordinated, centrally administered program. In contrast, many programs across Canada delivered influenza vaccine and did not desire a centralized process. CONCLUSION: There is considerable variability in the delivery of influenza vaccine to health care students across Canada. Coordinated programs may be desirable where delivery programs do not already exist.

HISTORIQUE: L'administration du vaccin contre l'influenza est recommandée pour tous les dispensateurs de soins, y compris les étudiants du domaine de la santé. On ne sait pas grand-chose de la manière dont les programmes informent leurs étudiants du milieu de la santé du vaccin contre l'influenza, dont ils prévoient l'administration du vaccin et dont ils vérifient leur statut vaccinal. MÉTHODOLOGIE: Les chercheurs ont privilégié une méthode mixte qui incluait des entrevues auprès d'informateurs clés, soit les coordonnateurs des étudiants des programmes du domaine de la santé de Halifax (Nouvelle-Écosse), et une étude nationale des coordonnateurs des étudiants des programmes du domaine de la santé du Canada. RÉSULTATS: Les 21 coordonnateurs qui avaient des étudiants en stage à l'IWK Health Centre de Halifax, en Nouvelle-Écosse, pendant la saison d'influenza, ont participé à une entrevue. De plus, 93 (36,3 %) des 256 coordonnateurs admissibles ont rempli le sondage, représentant 134 programmes différents (taux de réponse de 52,3 %). La plupart des programmes favorisaient l'administration du vaccin contre l'influenza saisonnière, mais seulement 28 (20,9 %) l'exigeaient. Aucun programme de Halifax n'assurait l'administration du vaccin contre l'influenza, et la plupart auraient préféré un programme d'administration coordonné et centralisé. Par contre, de nombreux programmes au Canada administrent le vaccin contre l'influenza et ne souhaitent pas de processus centralisé. CONCLUSION: On constate une nette variabilité dans l'administration du vaccin contre l'influenza aux étudiants du domaine de la santé du Canada. Des programmes coordonnés pourraient être souhaitables aux endroits où il n'y a pas encore de services.

Supporting Lactation in Otolaryngology Patients Through Medication Optimization, Radiology Considerations, and More: A Literature Review.

Importance: The benefits of breastfeeding are well established, with the American Academy of Pediatrics and Canadian guidelines recommending exclusive breastfeeding for the first 6 months of life. However, maternal hospitalization, illness, medication use, and poor support can result in early termination of breastfeeding. Caring for breastfeeding patients in otolaryngology is a challenge because of the lack of literature regarding otolaryngology-specific medication safety, patient concerns, and inadequate education among otolaryngologists. This review highlights recent literature regarding lactation in otolaryngology patients, including medication, radiologic imaging, perioperative considerations, and subspecialty-specific considerations for lactating patients. Observations: The majority of common medications used in general otolaryngology are safe for breastfeeding patients, including antihistamines, mucolytics, antitussives, antifungals, and decongestants. Certain analgesics and anti-inflammatories, such as tramadol, are not preferred in breastfeeding individuals. Some subspeciality-specific medications such as biologics (dupilumab) and methotrexate should be avoided. Lactating patients require special perioperative attention to ensure that optimal patient care is provided, such as managing supply, considering length of surgery, managing postoperative pain, and determining the safe amount of time until an infant can be fed. Conclusions and Relevance: Most medications can be safely used with lactating patients. If physicians are unsure about a medication's safety, they should consult appropriate resources prior to recommending breastfeeding cessation or to discard pumped milk.

Development and validation of an algorithm of diagnostic and procedural codes for the identification of children hospitalized with a tracheostomy in Ontario, Canada.

BACKGROUND: The requirement for a tracheostomy in children is associated with significant morbidity, mortality, and healthcare utilization. Easy identification of children with tracheostomies would facilitate important research on this population and provide quality improvement initiatives. AIM: The purpose of this study is to determine whether an algorithm of diagnostic and procedural codes can accurately identify children hospitalized with a tracheostomy using routinely collected health data. METHODS: Chart reviews were performed at the Children's Hospital of Eastern Ontario (CHEO) and the London Health Sciences Center (LHSC) to establish a true positive cohort of pediatric patients with tracheostomies admitted between 2008 and 2016. A multidisciplinary team developed algorithms of diagnostic and procedural codes contained within the Canadian Institute for Health Information Discharge Abstract Database. Algorithms were tested and refined against the true-positive and true-negative cohort. The accuracy of the diagnostic codes related to tracheostomy complications was also evaluated. RESULTS: A chart review identified 158 unique children with tracheostomies (77 at CHEO, 81 at LHSC) with 901 individual admissions (401 at CHEO, 507 at LHSC). The best algorithms for identifying children with a tracheostomy had a sensitivity and specificity of more than 99%, a positive predictive value (PPV) of 94.0% and negative predictive value (NPV) of 100%. The algorithm for the identification of tracheostomy-related complications had a sensitivity of 76.7%, a specificity of 65%, PPV of 52.3%, and an NPV of 84.7%. CONCLUSIONS: This study provides an algorithm for the accurate identification of children hospitalized in Canada with a tracheostomy, facilitating population-level epidemiological research and quality improvement initiatives.

Medical Students' Perceptions of Emergency Medicine Careers.

Introduction Previous studies on specialty choice have investigated specialty characteristics that are appealing to undergraduate students. Little is known about how students' attitudes towards Emergency Medicine (EM) careers evolve over their schooling. Methods An open-ended survey of medical students' career interests was distributed five times over the four-year undergraduate curriculum from 1999 to 2008 at Memorial University. We tested specialty choices across genders, and looked at how likely a student's choice in their first year influenced their final year choice, a metric we termed "endurance". The qualitative data was coded to identify key themes and sentinel quotes. Lastly, we conducted semi-structured interviews with academic emergency physicians at Dalhousie University to assess the relevance of these findings to postgraduate training. Results Males expressed more interest in EM than females. EM had more endurance than internal medicine, but less than family medicine, over the four-year curriculum. The biggest drawbacks for EM included lack of patient follow-up and lack of EM experience; positive perspectives focused on clinical variety and elective experiences. Lifestyle was prominent, seen as both positive and negative. Emergency physicians considered EM lifestyle attractive, and characterized medical students' perceptions as "skewed," highlighting lack of insight into system flaws. Conclusions Medical students' opinions towards EM tended to shift over time, particularly the perception of the work. Medical students' perceptions differ from that of experienced emergency physicians. Medical schools may be able to improve clinical exposure and provide more informed counselling or mentoring with respect to EM.

Medical student career choice: a qualitative study of fourth-year medical students at Memorial University, Newfoundland.

BACKGROUND: Specialty career choice is a critical decision for medical students, and research has examined factors influencing particular specialties or assessed it from a demographic perspective. The purpose of this study was to explore and describe influential factors in students' decision-making, irrespective of their particular specialty in a Canadian medical school. METHODS: Study participants were recruited from fourth-year medical classes at the Memorial University of Newfoundland in 2003, 2006, 2007 and 2008. Sixteen focus groups (n = 70) were led by a nonfaculty facilitator to uncover factors affecting medical student career choice. The analysis was guided by principles of grounded theory methodology. The focus group transcripts were sequentially coded based on recurring topics and themes that arose in the students' discussions. A set of key themes emerged and representative quotations for each theme were tracked. RESULTS: Twenty themes were identified from the focus group discussions: 7 major, 3 intermediate and 10 minor themes. The major themes were undergraduate experience, exposure, public perception and recruitment, teacher influence, family/outside influences, residency issues and personal philosophy. Intermediate themes included lifestyle, bad-mouthing/negative perceptions and context. Minor themes included critical incidents/experiences, information gaps, uncertainty, nature of the work, extracurricular programs, timing of decision-making, financial issues, prestige, fit with colleagues and gender issues. INTERPRETATION: Exposure to specialties and the timing of this exposure appears to be crucial to career choice, as does the context (who, what, when, where) of any particular rotation. Given the influence of personal philosophy, future research examining students' level of self-assessment and self-reflection in their decision-making processes and level of certainty about their selected specialty would be useful.

Pigmented Villonodular Synovitis of the Temporomandibular Joint: A Unique Presentation.

Pigmented villonodular synovitis (PVNS) is a rare and benign proliferative disorder of synovium with potentially locally aggressive growth and invasion of the bone. Occurring within the joints, tendon sheaths, and bursae, it is most commonly a monoarticular disease affecting large joints. In particular, most cases of PVNS occur in the knee. PVNS of the temporomandibular joint (TMJ) is a highly rare disorder, with approximately 60 cases reported. Herein, we present a unique case of an elderly male presenting with ear pain and subsequently diagnosed with PVNS of the TMJ with a history of trauma to the area. Initial imaging of the TMJ and the surrounding region looked concerning for invasive and/or malignant disease, but an open biopsy confirmed PVNS.

Informed Consent in Pediatric Otolaryngology: What Risks and Benefits Do Parents Recall?

OBJECTIVE: To evaluate parental recall of surgical risks and benefits in pediatric otolaryngology and to assess for factors that may influence recall. STUDY DESIGN: Prospective cohort study. SETTING: Academic pediatric otolaryngology clinic. SUBJECTS AND METHODS: Eighty-four parents of children <6 years of age who underwent consultation for adeno/tonsillectomy and/or tympanostomy tube insertion were prospectively enrolled. Consultation visits were video recorded and the benefits and risks of surgery documented. Two weeks following the consultation, parents were contacted for assessment of recall of information discussed during the consultation. RESULTS: Overall, parents recalled only one-third of the risks of surgery mentioned by the surgeons. Parents were significantly more likely to recall the benefits of surgery as opposed to the risks (P < .001). Nine parents (10.7%) reported that no benefits were discussed during the consultation, and 10 (11.9%) reported no mention of any risks. Inconsistencies were present in which risks and benefits were mentioned by the providers. Parents who decided to proceed with surgery (58.3%) were significantly less likely to recall the surgical risks than those who did not (P < .001). The specific surgeon involved, the number of caregivers present, parental education level, and prior surgical history did not influence recall. CONCLUSION: Parental recall of benefits and risks associated with common pediatric otolaryngology procedures was poor. This information is important because a low rate of recall may influence parents' perspectives of the procedure and could alter their decision-making processes or expectations. Methods to improve parental recall should be further studied.