Browsing by Author "Ting, Jonathan Y."
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Item Aerosol and droplet generation from mandible and midface fixation: Surgical risk in the pandemic era(Elsevier, 2021-01) Ye, Michael J.; Sharma, Dhruv; Campiti, Vincent J.; Rubel, Kolin E.; Burgin, Sarah J.; Illing, Elisa A.; Ting, Jonathan Y.; Hong Park, Jae; Johnson, Jeffrey D.; Vernon, Dominic J.; Lee, Hui Bae; Nesemeier, B. Ryan; Shipchandler, Taha Z.; Otolaryngology -- Head and Neck Surgery, School of MedicinePurpose The COVID-19 pandemic has led to concerns over transmission risk from healthcare procedures, especially when operating in the head and neck such as during surgical repair of facial fractures. This study aims to quantify aerosol and droplet generation from mandibular and midface open fixation and measure mitigation of airborne particles by a smoke evacuating electrocautery hand piece. Materials and methods The soft tissue of the bilateral mandible and midface of two fresh frozen cadaveric specimens was infiltrated using a 0.1% fluorescein solution. Surgical fixation via oral vestibular approach was performed on each of these sites. Droplet splatter on the surgeon's chest, facemask, and up to 198.12 cm (6.5 ft) away from each surgical site was measured against a blue background under ultraviolet-A (UV-A) light. Aerosol generation was measured using an optical particle sizer. Results No visible droplet contamination was observed for any trials of mandible or midface fixation. Total aerosolized particle counts from 0.300–10.000 μm were increased compared to baseline following each use of standard electrocautery (n = 4, p < 0.001) but not with use of a suction evacuating electrocautery hand piece (n = 4, p = 0.103). Total particle counts were also increased during use of the powered drill (n = 8, p < 0.001). Conclusions Risk from visible droplets during mandible and midface fixation is low. However, significant increases in aerosolized particles were measured after electrocautery use and during powered drilling. Aerosol dispersion is significantly decreased with the use of a smoke evacuating electrocautery hand piece.Item Aerosol and droplet generation from orbital repair: Surgical risk in the pandemic era(Elsevier, 2021) Ye, Michael J.; Vadhul, Raghav B.; Sharma, Dhruv; Campiti, Vincent J.; Burgin, Sarah J.; Illing, Elisa A.; Ting, Jonathan Y.; Hong Park, Jae; Koehler, Karl R.; Lee, Hui Bae; Vernon, Dominic J.; Johnson, Jeffrey D.; Nesemeier, B. Ryan; Shipchandler, Taha Z.; Otolaryngology -- Head and Neck Surgery, School of MedicineIntroduction The highly contagious COVID-19 has resulted in millions of deaths worldwide. Physicians performing orbital procedures may be at increased risk of occupational exposure to the virus due to exposure to secretions. The goal of this study is to measure the droplet and aerosol production during repair of the inferior orbital rim and trial a smoke-evacuating electrocautery handpiece as a mitigation device. Material and methods The inferior rim of 6 cadaveric orbits was approached transconjunctivally using either standard or smoke-evacuator electrocautery and plated using a high-speed drill. Following fluorescein inoculation, droplet generation was measured by counting under ultraviolet-A (UV-A) light against a blue background. Aerosol generation from 0.300–10.000 μm was measured using an optical particle sizer. Droplet and aerosol generation was compared against retraction of the orbital soft tissue as a negative control. Results No droplets were observed following the orbital approach using electrocautery. Visible droplets were observed after plating with a high-speed drill for 3 of 6 orbits. Total aerosol generation was significantly higher than negative control following the use of standard electrocautery. Use of smoke-evacuator electrocautery was associated with significantly lower aerosol generation in 2 of 3 size groups and in total. There was no significant increase in total aerosols associated with high-speed drilling. Discussion and conclusions Droplet generation for orbital repair was present only following plating with high-speed drill. Aerosol generation during standard electrocautery was significantly reduced using a smoke-evacuating electrocautery handpiece. Aerosols were not significantly increased by high-speed drilling.Item Aerosol generation during cadaveric simulation of otologic surgery and live cochlear implantation(Wiley, 2021-02) Sharma, Dhruv; Campiti, Vincent J.; Ye, Michael J.; Saltagi, Mohamad; Carroll, Aaron E.; Ting, Jonathan Y.; Illing, Elisa A.; Park, Jae Hong; Nelson, Rick F.; Burgin, Sarah J.; Otolaryngology -- Head and Neck Surgery, School of MedicineObjective The risk of SARS‐CoV‐2 transmission to healthcare workers through airborne aerosolization during otologic surgery has not been characterized. The objective of this study was to describe and quantify the aerosol generation during common otologic procedures in both cadaveric surgical simulation and live patient surgery. Methods The number concentrations of generated aerosols in the particle size range of 0.30 to 10.0 μm were quantified using an optical particle sizer during both a cadaveric simulation of routine otologic procedures as well as cochlear implant surgery on live patients in the operating room. Results In the cadaveric simulation, temporalis fascia graft harvest using cold techniques (without electrocautery) (n = 4) did not generate aerosols above baseline concentrations. Tympanoplasty (n = 3) and mastoidectomy (n = 3) both produced statistically significant increases in concentrations of aerosols (P < 0.05), predominantly submicron particles (< 1.0 μm). High‐speed, powered drilling of the temporal bone during mastoidectomy with a Multi Flute cutting burr resulted in higher peak concentrations and greater number of spikes in aerosols than with a diamond burr. In the operating room, spikes in aerosols occurred during both cochlear implant surgeries. Conclusion In the cadaveric simulation, temporalis fascia graft harvest without electrocautery did not generate aerosol levels above baseline, while significant aerosol levels were generated during mastoidectomy and to a much less degree during tympanoplasty. Aerosol spikes were appreciated during cochlear implantation surgery in live patients.Item Aerosol generation during routine rhinologic surgeries and in-office procedures(Wiley, 2021-02) Sharma, Dhruv; Campiti, Vincent J.; Ye, Michael J.; Rubel, Kolin E.; Higgins, Thomas S.; Wu, Arthur W.; Shipchandler, Taha Z.; Burgin, Sarah J.; Sim, Michael W.; Illing, Elisa A.; Hong Park, Jae; Ting, Jonathan Y.; Otolaryngology -- Head and Neck Surgery, School of MedicineObjective Cadaveric simulations have shown endonasal drilling and cautery generate aerosols, which is a significant concern for otolaryngologists during the COVID‐19 era. This study quantifies aerosol generation during routine rhinologic surgeries and in‐office procedures in live patients. Methods Aerosols ranging from 0.30 to 10.0 μm were measured in real‐time using an optical particle sizer during surgeries and in‐office procedures. Various mask conditions were tested during rigid nasal endoscopy (RNE) and postoperative debridement (POD). Results Higher aerosol concentrations (AC) ranging from 2.69 to 10.0 μm were measured during RNE (n = 9) with no mask vs two mask conditions (P = .002 and P = .017). Mean AC (0.30‐10.0 μm) were significantly higher during POD (n = 9) for no mask vs a mask covering the patient's mouth condition (mean difference = 0.16 ± 0.03 particles/cm3, 95% CI 0.10‐0.22, P < .001). There were no discernible spikes in aerosol levels during endoscopic septoplasty (n = 3). Aerosol spikes were measured in two of three functional endoscopic sinus surgeries (FESS) with microdebrider. Using suction mitigation, there were no discernible spikes during powered drilling in two anterior skull base surgeries (ASBS). Conclusion Use of a surgical mask over the patient's mouth during in‐office procedures or a mask with a slit for an endoscope during RNE significantly diminished aerosol generation. However, whether this reduction in aerosol generation is sufficient to prevent transmission of communicable diseases via aerosols was beyond the scope of this study. There were several spikes in aerosols during FESS and ASBS, though none were associated with endonasal drilling with the use of suction mitigation.Item Aspiration of Aluminum Beverage Can Tab: Case Report and Literature Review(Hindawi, 2017) Elghouche, Alhasan N.; Lobo, Brian C.; Ting, Jonathan Y.; Otolaryngology -- Head and Neck Surgery, School of MedicineWe describe the case of a 16-year-old male who aspirated a beverage can tab resulting in significant functional impairment. Since the introduction of beverage can opening tabs ("pop-tops" or "pull-tabs") nearly 50 years ago, five cases of their aspiration have been reported in the literature and this is the first case to report tracheal lodgment. We describe the clinical course for this patient including the inadequacy of radiographic evaluation and a significant delay in diagnosis. We highlight unique features of small aluminum foreign bodies that require consideration and mention a potential change in epidemiology associated with evolving product design. Our primary objective is increased awareness among otolaryngologists that radiography is unreliable for diagnosis or localization of small aluminum foreign bodies. The patient history must therefore be incorporated with other imaging modalities and/or endoscopic evaluation. Also, given the marked prevalence of aluminum beverage cans, we suspect that the inadvertent aspiration of can tabs is more common than indicated by the paucity of published reports.Item The association of weather, temperature, and holidays on pediatric maxillofacial trauma(Wiley, 2020-09-22) Rabbani, Cyrus C.; Kao, Richard; Shin, Timothy J.; Burgeson, Jack E.; Ting, Jonathan Y.; Sim, Michael W.; Shipchandler, Taha Z.; Otolaryngology -- Head and Neck Surgery, School of MedicineObjective To evaluate the association of weather, seasons, months and holidays on the frequency and pattern of pediatric facial fractures. Methods Retrospective review of pediatric patients treated for facial fractures at two Level I trauma centers in a midsize Midwestern US city over a 5‐year period. Patients were included only if presentation was within 3 hours of inciting trauma, transfers from other facilities were excluded. Demographic characteristics, fracture patterns, operative interventions, weather data, and local public school schedules were acquired and associations were analyzed with unpaired t tests, χ2, multivariate and binomial regression model analyses. Results Two hundred and sixty patients were included. The average age (SD) was 11.8 (5.0) years, with 173 males and 87 females. The highest distribution of presentations occurred in the summer season (35.0%), on weekends and holidays (58.1%), and when the weather was described as clear (48.5%). The most common mechanisms of injury were motor vehicle collisions (25.8%), followed by sports—(21.5%) and assault—(16.5%) related injuries. Mechanisms were significantly associated with certain fracture patterns. Older age was associated with fewer orbital fractures (P < .01). Seventy‐five patients (28.8%) required operative intervention. Age was found to impact the likelihood of operative intervention (Exp(β) = 1.081, P = .03) while weather, temperature, and mechanism did not. Conclusion Pediatric facial fractures are linked to warmer weather with clear skies and warmer season. Age predicts some fracture patterns and need for operative intervention. These results can be used to inform public health interventions, policymaking, and trauma staffing. Level of Evidence: Level 2b (retrospective cohort).Item Cadaveric Simulation of Endoscopic Endonasal Procedures: Analysis of Droplet Splatter Patterns During the COVID-19 Pandemic(SAGE Publications, 2020-05-19) Sharma, Dhruv; Rubel, Kolin E.; Ye, Michael J.; Shipchandler, Taha Z.; Wu, Arthur W.; Higgins, Thomas S.; Burgin, Sarah J.; Ting, Jonathan Y.; Illing, Elisa A.; Otolaryngology -- Head and Neck Surgery, School of MedicineObjective The primary mode of viral transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is thought to occur through the spread of respiratory droplets. The objective of this study was to investigate droplet and splatter patterns resulting from common endoscopic endonasal procedures. Study Design Cadaver simulation series. Setting Dedicated surgical laboratory. Subjects and Methods After instilling cadaver head specimens (n = 2) with fluorescein solution, endoscopic endonasal procedures were systematically performed to evaluate the quantity, size, and distance of droplets and splatter following each experimental condition. Results There were no observable fluorescein droplets or splatter noted in the measured surgical field in any direction after nasal endoscopy, septoplasty with microdebrider-assisted turbinoplasty, cold-steel functional endoscopic sinus surgery (FESS), and all experimental conditions using an ultrasonic aspirator. Limited droplet spread was noted with microdebrider FESS (2 droplets, <1 mm in size, within 10 cm), drilling of the sphenoid rostrum with a diamond burr (8, <1 mm, 12 cm), and drilling of the frontal beak with a cutting burr (5, <1 mm, 9 cm); however, the use of concurrent suction while drilling resulted in no droplets or splatter. The control condition of external activation of the drill resulted in gross contamination (11, 2 cm, 13 cm). Conclusion Our results indicate that there is very little droplet generation from routine rhinologic procedures. The droplet generation from drilling was mitigated with the use of concurrent suction. Extreme caution should be used to avoid activating powered instrumentation outside of the nasal cavity, which was found to cause droplet contamination.Item Cadaveric Simulation of Otologic Procedures: An Analysis of Droplet Splatter Patterns During the COIVD-19 Pandemic(SAGE Publications, 2020-05-19) Sharma, Dhruv; Rubel, Kolin E.; Ye, Michael J.; Carroll, Aaron E.; Ting, Jonathan Y.; Illing, Elisa A.; Burgin, Sarah J.; Campiti, Vincent J.; Otolaryngology -- Head and Neck Surgery, School of MedicineObjective. The otolaryngology community has significant concerns regarding the spread of SARS-CoV-2 through droplet contamination and viral aerosolization during head and neck examinations and procedures. The objective of this study was to investigate the droplet and splatter contamination from common otologic procedures. Study Design. Cadaver simulation series. Setting. Dedicated surgical laboratory. Methods. Two cadaver heads were prepped via bilateral middle cranial fossa approaches to the tegmen (n = 4). Fluorescein was instilled through a 4-mm burr hole drilled into the middle cranial fossa floor, and presence in the middle ear was confirmed via microscopic ear examination. Myringotomy with ventilation tube placement and mastoidectomy were performed, and the distribution and distance of resulting droplet splatter patterns were systematically evaluated. Results. There were no fluorescein droplets or splatter contamination observed in the measured surgical field in any direction after myringotomy and insertion of ventilation tube. Gross contamination from the surgical site to 6 ft was noted after complete mastoidectomy, though, when performed in standard fashion. Conclusion. Our results show that there is no droplet generation during myringotomy with ventilation tube placement in an operating room setting. Mastoidectomy, however, showed gross contamination 3 to 6 ft away in all directions measured. Additionally, there was significantly more droplet and splatter generation to the left of the surgeon when measured at 1 and 3 ft as compared with all other measured directions.Item Calvarium Thinning in Patients with Spontaneous Cerebrospinal Fluid Leaks of the Anterior Skull Base(Wiley, 2021-06) Sharma, Dhruv; Tucker, Brady J.; Millay, David S.; Rubel, Kolin E.; Saltagi, Mohamad; Nelson, Rick F.; Illing, Elisa A.; Ting, Jonathan Y.; Otolaryngology -- Head and Neck Surgery, School of MedicineObjectives/Hypothesis Patients with spontaneous cerebrospinal fluid leaks (sCSF-L) of the temporal bone have isolated calvarial and skull base thinning that is independent of obesity. This study determines if anterior skull base (ASB) sCSF-L patients also have calvarial thinning. Study Design Retrospective Cohort Study. Methods This was a retrospective cohort study of ASB sCSF-L patients compared to nonobese (body mass index [BMI] < 30 kg/m2) and obese (BMI ≥ 30) control groups. Twenty-one patients in the ASB sCSF-L group and 25 patients in each control group were included. Calvarium and extracranial zygoma thicknesses were measured bilaterally with blinded, standardized, volumetric analysis. Results ASB sCSF-L patients had a mean (SD) age of 50.43 (10.19) years, an average (SD) BMI of 38.81 (8.92) kg/m2, and most were female (85.71%). The calvarium in patients with ASB sCSF-L was significantly thinner than the nonobese (2.55 mm [0.77] vs. 2.97 [0.67] mm; P = .006; 95% confidence intervals [CI], 0.12–0.30; Cohen d, 0.58) and obese control groups (2.55 [0.77] vs. 2.92 [0.76] mm; P = .02; 95% CI, 0.05–0.34; Cohen d, 0.66). The calvarium thickness of the nonobese patients was not significantly different from the obese patient controls (2.97 [0.67] vs. 2.92 [0.76] mm, P = .9). The extracranial zygoma was not significantly different among the groups (analysis of variance, P = .33). Conclusions ASB sCSF-L patients have isolated calvarial thinning that is independent of obesity. Like lateral skull base sCSF-L patients, these data suggest that the additional obesity-associated intracranial process contributes to skull thinning.Item Comparison of Patient Satisfaction Between Virtual Visits During the COVID-19 Pandemic and In-person Visits Pre-pandemic(SAGE Publishing, 2020-11-30) Itamura, Kyohei; Tang, Dennis M.; Higgins, Thomas S.; Rimell, Franklin L.; Illing, Elisa A.; Ting, Jonathan Y.; Lee, Matthew K.; Wu, Arthur; Otolaryngology -- Head and Neck Surgery, School of MedicineObjective: To compare the patient experience of a virtual otolaryngology clinic visit to an in-person visit, especially with its significantly increased implementation during the COVID-19 pandemic. Methods: Patient satisfaction (PS) metrics from the Clinician and Group Consumer Assessment of Healthcare Providers and Systems survey were queried from March 1, 2020 to May 1, 2020 for telehealth visits and January 1, 2020 to March 1, 2020 for in-person visits. Overlapping and comparable questions were analyzed using Mann-Whitney U test, Chi-square test for independence, and Student's t-test. Results: There were 1284 partial or complete PS surveys from in-person visits and 221 partial or complete virtual PS surveys. There were statistically significantly worse virtual visit evaluations of provider listening, conveyance of information, likelihood to recommend, and overall provider ratings compared to in-person visits. Conclusion: Telehealth has become the new norm for most healthcare providers in the United States. This study demonstrates some of the initial shortcomings of telehealth in an otolaryngology practice and identifies challenges with interpersonal communication that may need to be addressed as telehealth becomes increasingly prevalent.