Semi-Quantitative Assessment of Surgical Navigation Accuracy During Endoscopic Sinus Surgery in a Real-World Environment.

INTRODUCTION: Although surgical navigation is commonly used in rhinologic surgery, data on real world performance are sparse because of difficulties in collecting measurements for target registration error (TRE). Despite publications showing submillimeter TRE, surgeons do report TRE of >3 mm. We describe a novel method for assessing TRE during surgery and report findings with this technique. METHODS: The TruDi navigation system (Acclarent, Irving, CA) was registered using a contour-based protocol. The surgeon estimated target registration error (e-TRE) at up to 8 points (anatomic regions of interest [ROI]) during endoscopic sinus surgery (ESS). System logs were used to simulate the localization for quantitative assessment of TRE (q-TRE). RESULTS: We performed 98 localizations in 20 patients. The ROI in the sinuses were ethmoid (33 sites), maxillary (28 sites), frontal (17 sites), and sphenoid (22 sites). For localizations, mean qTRE and eTRE were 0.93 and 0.84 mm (P = .56). Notably, 80% of qTRE and 81% of eTRE were 1 mm or less. Mean qTRE and eTRE were less for attending-performed registrations at the maxillary, frontal and sphenoid. CONCLUSION: Surgical navigation accuracy, as measured by qTRE and eTRE, approaches 1 mm or better at all sinus sites in a real-world setting for 80% of localizations. The qTRE method provides a unique approach for assessing TRE. Surgeons underestimate TRE (overstate navigation accuracy), but this difference does not seem to be statistically significant. Registration performed by trainees yields higher TRE than registration performed by attendings. These data may be used to guide navigation optimization.

An Analysis of Global Surgery Opportunities in American Otolaryngology Residency Programs.

OBJECTIVES: To depict the current state of global surgery opportunities in United States ACGME-approved Otolaryngology residency programs and compare the characteristics of programs with and without these opportunities. METHODS: In this cross-sectional analysis, websites of ACGME-accredited Otolaryngology residency programs were analyzed for information on program size, rank, age, and geographic region as obtained through the Doximity platform in 2023. Additional parameters were obtained for programs listing global surgery opportunities such as funding, faculty oversight, location/region, focus, and relationship to the community served. Data were tabulated and analyzed in Microsoft Excel and Stata. RESULTS: Of the 131 ACGME-accredited Otolaryngology residency programs, 26 (20%) of programs advertised a global surgery opportunity. Nine (35%) of these promoted funding, 15 (58%) offered a clinical focus, one (4%) offered a research focus, and 10 (38%) offered a combined approach. The Midwest region had the most programs with global surgery opportunities (n = 8, 31%). Less than half (42%) of programs had an established partnership with local partners within low and middle-income countries (LMICs). When comparing programs, the average Doximity rank, average program age, and average program size of programs that offered global surgery opportunities was significantly higher than those that did not (37.2 vs. 71.5, 54 vs. 41, 19.5 vs. 13.7; all p < 0.05). CONCLUSIONS: Approximately one-fifth of Otolaryngology training programs have a global surgery opportunity. Programs that offer these opportunities had a higher Doximity ranking, older program age, and a larger trainee cohort. These results highlight potential areas for expanding global surgery opportunities in academic institutions. LEVEL OF EVIDENCE: N/A Laryngoscope, 2024.

Bystander-application of a novel nasal swab optimized for drug delivery is safe and non-traumatic for the general population.

OBJECTIVE: The PN Naloxone Nasal Swab (Pocket Naloxone Corp., Bethesda, MD) is a swab optimized for drug delivery and intended for use by non-medical personnel for the emergency treatment of opioid overdose. The aim of this study (PNC-20-003) is to determine the safety of this nasal swab in a real-world environment. METHODS: This was a single-institution, quantitative-qualitative prospective trial performed at an outpatient clinic. Patients with normal or abnormal nasal structure were recruited. A non-medically trained individual placed the nasal (soaked in fluorescein dye) on each side of the patient's nose. Endoscopy with recording was performed before and after swab placement. An independent reviewer rated degree of staining, mucosal bleeding, and trauma at nasal subsites. RESULTS: Videos from 32 nasal cavities (16 participants) were reviewed. All cavities had high intensity staining at the septum and the inferior turbinate. No patients had staining within the middle meatus, agger nasi, or olfactory regions. In patients with normal anatomy, obstructive nasal anatomy or prior nasal surgery, all cavities had staining near the nasal septum. Only 7 cavities (22 %) had minor bleeding defined as ooze that stopped in 1-2min, and 3 (9 %) had minor trauma defined as mucosal disruption less than 5mm. There were no significant differences in comparing pre- and post-swab nasal cavity, trauma, or bleeding exams. CONCLUSIONS: These study results showed that this swab is atraumatic to the nasal mucosal membranes when administered by non-medical personnel. Analysis suggests contact with targeted sites for drug absorption regardless of anatomy.

Management of pediatric choanal atresia restenosis and subglottic stenosis using steroid-eluting stents.

OBJECTIVES: To depict the novel use of steroid-eluting stents in the treatment of choanal atresia (CA) restenosis and subglottic stenosis (SGS). METHODS: A retrospective chart review of three pediatric patients, one with CA and two with SGS, treated with mometasone furoate eluting mini stents (PROPEL) was performed. Patients were evaluated for restenosis and adverse events between one to twelve months postoperatively. RESULTS: Postoperatively, patient one with CA showed no signs of restenosis and required no further intervention. Patient two with SGS demonstrated an open subglottic lumen with no signs of restenosis as well as improved phonation following his planned serial procedures. Post-operatively, patient three with SGS exhibited no restenosis of the subglottic lumen, tolerated intermittent tracheostomy capping, and demonstrated improved phonation. CONCLUSION: In this case series, we outline successful treatments for the management of CA restenosis and SGS with mometasone furoate-eluting stents. To our knowledge, this is the first reported application of this treatment in pediatric patients with CA restenosis and the second reported application in pediatric patients with SGS.

Multidisciplinary Management of Total Anterior Skull Base Osteoradionecrosis.

Cases of delayed osteoradionecrosis (ORN) of the anterior skull base have unique management considerations. A 59-year-old woman with a history of basaloid squamous cell carcinoma of the sinonasal cavity with intracranial extension through the anterior skull base developed delayed radiation sequelae of anterior skull base ORN. She underwent an initial endoscopic resection in 2011 with persistent disease that required an anterior craniofacial resection with left medial maxillectomy in 2012. She had a radiologic gross total resection with microscopic residual disease at the histologic margins prompting adjuvant chemoradiotherapy to target volume doses of 66 to 70 Gy with concurrent cisplatin chemotherapy. She subsequently developed an intracranial abscess in 2021 along the anterior skull base that required a craniotomy and endoscopic debridement. Despite aggressive surgical and medical therapy, she had persistent intracranial infections and evidence of skull base ORN. She ultimately underwent a combined open bifrontal craniotomy and endoscopic resection of the necrotic frontal bone and dura followed by an anterolateral thigh free flap reconstruction with titanium mesh cranioplasty. The patient recovered well from a microvascular free-tissue reconstruction without concern for cerebrospinal fluid leak. Anterior skull base reconstruction with free tissue transfer is a commonly utilized method for oncologic resections. Here, an anterolateral free flap was effectively used to treat an anterior skull base defect secondary to a rare indication of skull base ORN.

Invasive Cytomegalovirus (CMV) Sinusitis in an Acquired Immunodeficiency Syndrome (AIDS) Patient.

A patient with acquired immunodeficiency syndrome presented with findings concerning for acute invasive fungal sinusitis, which is typically associated with Mucorales. However, debridement and pathological analysis revealed Cytomegalovirus, a pathology rarely encountered. Laryngoscope, 134:92-96, 2024.

The impact of the pandemic on the presentation and treatment of head and neck squamous cell carcinoma at a county hospital.

INTRODUCTION: In March 2020, the World Health Organization declared COVID-19 a pandemic, initiating stay-at-home orders which delayed cancer care and screening. The impact on head and neck cancer care in populations at risk has yet to be elucidated. The objective of this investigation is to evaluate how the presentation, diagnosis, and treatment of head and neck squamous cell carcinoma cancer patients at a county hospital were affected by the pandemic. METHODS: A retrospective review of patients with head and neck squamous cell carcinoma that were diagnosed at a county hospital 365 days before and after stay-at-home orders were initiated. The primary outcomes were duration between diagnosis from imaging and initiation of treatment. Secondary outcomes included mortality, stage, nodal status, and distant metastasis at presentation. RESULTS: There was a total of 105 diagnoses. Sixty-five (62 %) head and neck squamous cell carcinoma diagnoses were diagnosed before the stay-at-home orders were initiated, and 40 (38 %) after. Eighty percent (32/40) of diagnoses presenting after had stage IV disease compared to 58 % (38/65) in those before (p < 0.05). A higher percentage of patients who presented later had a >30-day delay to biopsy (43 % v. 20 %, OR: 3.0, p < 0.05). This difference was exacerbated by those with laryngeal, oral cavity, or oropharyngeal cancer (45 % v. 15 %, OR: 4.5, p < 0.05). There was a larger delay from diagnosis to treatment after the orders were initiated (68 v. 53, p < 0.05) however there was no difference in one-year mortality (25 % v. 23 %, p > 0.05). This investigation found a 14 % loss to follow-up. CONCLUSIONS AND RELEVANCE: In this cohort of head and neck squamous cell carcinoma diagnoses at a county hospital, those diagnosed after the stay-at-home orders were initiated presented with more advanced disease. They also had more delays in diagnosis and initiation of treatment. There was no difference in one-year mortality rates between the two groups however there was a significant loss to follow-up, limiting prognostication. These findings serve to better prepare healthcare providers to implement optimized care during future shutdowns related to public health crises. LEVEL OF EVIDENCE: III.

Medical Student Mentorship in the COVID-19 Era.

Background: The Covid-19 pandemic led to a reduction of in-person, guided mentorship due to social distancing and an emphasis on virtual meetings. The effect of these changes on medical students' experiences and specialty choice has yet to be studied in a large-scale manner. Objective: To determine the perspective of third- and fourth-year medical students regarding the impact of the COVID-19 pandemic on mentorship. Design: The authors distributed a modified Likert scale questionnaire (score: 1-10) to assess responses. Participants: Third- and fourth-year medical students at two large US allopathic medical schools. Main Measures: Responses to each survey item were analyzed to characterize the impact of the COVID-19 pandemic on mentorship relationships in medical school. A score of 1-5 was considered "disagree" and a score of 6-10 was considered "agree." Key Results: A total of 144 responses were collected with a response rate of 16.2%. Overall, 80.6% (n = 116) of respondents agree that the COVID-19 pandemic has had a negative impact on their medical school experience. Nearly half (41.0%, n = 59) expressed concern over the lack of mentorship opportunities, and 66.0% (n = 95) reported that the pandemic has made it more difficult to form or maintain connections with their mentors. Importantly, 43.6% (n = 61) of respondents reported that having close mentoring relationships reduced the impact of the pandemic on their medical training. While many respondents (79.9%, n = 114) did not change career plans due to the pandemic, most students are concerned about evaluating prospective residency programs (88.9%, n = 128). Notably, M3s have much lower confidence than M4s in their ability to choose a specialty (5.9 vs. 8.2, p = 6.43e - 08). Conclusions: This investigation illustrates the concerns that medical students have regarding access to mentorship opportunities due to the COVID-19 pandemic. We hope that these findings encourage medical schools to evaluate and expand their current mentorship programs. Supplementary Information: The online version contains supplementary material available at 10.1007/s40670-023-01838-4.

Recurrent respiratory papillomatosis disease course in immunosuppressed populations.

OBJECTIVE: Recurrent respiratory papillomatosis is a benign manifestation of human papillomavirus types 6 and 11 in the respiratory tract. Disease is recurrent, and factors predicting these recurrences and severity of disease are incompletely characterised. This retrospective cohort study examined the relationship of immunosuppression with recurrent respiratory papillomatosis morbidity. METHODS: A retrospective cohort of 97 adult patients with recurrent respiratory papillomatosis treated at a tertiary referral centre from 2005 to 2020 was conducted. Measures assessed included inter-surgical interval, Voice Handicap Index ('VHI-10') and anatomical Derkay scores. RESULTS: Bivariate analyses comparing average inter-surgical interval, Voice Handicap Index and Derkay scores in immunosuppressed and healthy patients were insignificant. When controlling for diabetes mellitus and comparing immunosuppressed to healthy patients, inter-surgical interval and Voice Handicap Index change were insignificant (p = 0.458 and p = 0.465, respectively). CONCLUSION: Recurrent respiratory papillomatosis morbidity for immunosuppressed patients did not significantly differ from that of immunocompetent patients.