Surgical Nonresponders in Zenker Diverticulum and Lower Esophageal Pathology (POUCH Collaborative).

OBJECTIVE: To identify characteristics of patients who have poor improvement in symptoms following surgical management of Zenker Diverticulum (ZD). METHODS: Prospective, multicenter cohort study of all individuals enrolled in the Prospective OUtcomes of Cricopharyngeus Hypertonicity (POUCH) Collaborative who underwent surgical repair of ZD between August 2017 and January 2024. Patient demographics, esophagrams, and the 10-item Eating Assessment Tool (EAT-10) pre- and post-procedure were obtained from a REDCap database. t-tests, Wilcoxon rank sum tests, Chi-square or Fisher's exact tests were used to compare the characteristics. Patients with <50% improvement in their EAT-10 scores were deemed surgical nonresponders (SNRs). Those with ≥50% improvement in their EAT-10 scores were deemed surgical responders (SRs). RESULTS: A total of 184 patients were prospectively followed after undergoing either open or endoscopic surgical management. Twenty-two patients (12%) were deemed SNRs. Preoperative presence of a hiatal hernia was statistically significant characteristic between the SNRs (63.6%) and SRs (32.1%) (p = 0.004). Size of the ZD and history of previous ZD surgery was not a significant characteristic. The length of stay and complication rate were not statistically different between the groups. CONCLUSION: Coexistent esophageal pathology may lead to poor symptomatic improvement following ZD surgery. Preoperative workup of other esophageal disorders is recommended to detect likely SNRs. For SNRs, further esophageal workup may be necessary to evaluate for other esophageal causes related to poor symptomatic improvement following ZD surgery. LEVEL OF EVIDENCE: Level 3 Laryngoscope, 2024.

Surgical Outcomes in Zenker Diverticula: A Multicenter, Prospective, Longitudinal Study.

OBJECTIVE: To compare improvement in patient-reported outcomes (PROM) in persons undergoing endoscopic and open surgical management of Zenker diverticula (ZD). METHODOLOGY: Prospective, multicenter cohort study of all individuals enrolled in the Prospective OUtcomes of Cricopharyngeus Hypertonicity (POUCH) Collaborative who underwent surgery for ZD. Patient survey, radiography reports, and the 10-item Eating Assessment Tool (EAT-10) pre- and post-procedure were abstracted from a REDCap database, which summarized means, medians, percentages, and frequencies of. Outcome based on operative intervention (endoscopic vs. open) was compared using t-test, Wilcoxon rank sum test or chi-square test, as appropriate. RESULTS: One hundred and forty-seven persons were prospectively followed. The mean age (SD) of the cohort was 68.7 (11.0). Overall, 66% of patients reported 100% improvement in EAT-10; 81% of patients had greater than 75% improvement; and 88% had greater than 50% improvement. Endoscopic was used for n = 109 patients, and open surgical intervention was used for n = 38. The median [interquartile range, IQR] EAT-10 percent improvement for endoscopic treatment was 93.3% [72, 100], and open was 100% [92.3, 100] (p = 0.05). The incidence of intraoperative complications was 3.7% for endoscopic and 7.9% for open surgical management. The median [IQR] in follow-up was 86 and 97.5 days, respectively. CONCLUSION: Both endoscopic and open surgical management of ZD provide significant improvement in patient-reported outcomes. The data suggest that open diverticulectomy may provide a modest advantage in symptomatic improvement compared to endoscopic management. The data suggest that the postoperative complication rate is higher in the open surgical group. LEVEL OF EVIDENCE: 3 Laryngoscope, 134:97-102, 2024.

Postoperative Care of Zenker Diverticula: Contemporary Perspective from the Prospective OUtcomes Cricopharyngeaus Hypertonicity (POUCH) Collaborative.

OBJECTIVES: The aim of the study was to identify trends in postoperative management of persons undergoing surgery for Zenker diverticula (ZD) by evaluating length of stay (LOS), diet on discharge, and imaging with or without surgical complication. METHODS: Prospectively enrolled adult patients with cricopharyngeal muscle dysfunction with diverticula undergoing surgery from August 1, 2017 to February 1, 2023 were included. Data were extracted from a multi-institutional REDCap database, summarizing means, medians, percentages, and frequencies. Fisher's exact or chi squared analyses were utilized, as appropriate, to compare subsets of data. Descriptive analysis assessed differences in clinical course and the relationship to postoperative management. RESULTS: There were 298 patients with a mean (standard deviation) age of 71.8 (11.2) years and 60% male. Endoscopic surgery was performed in 79.5% (237/298) of patients versus 20.5% (61/298) open surgery. Sixty patients (20.1%) received postoperative imaging, with four leaks identified. Complications were identified in 9.4% of cases (n = 29 complications in 28 patients), more commonly in open surgery. Most (81.2%) patients were discharged within 23 h. About half of patients (49%) were discharged from the hospital on a pureed/liquid diet; 36% had been advanced to a soft diet. In patients without complications, LOS was significantly longer following open cases (p = 0.002); postoperative diet was not different between open and endoscopic (p = 0.26). CONCLUSIONS: Overall, most patients are discharged within 23 h without imaging. However, LOS was affected by surgical approach. Postoperative complications are different in endoscopic versus open surgery. Complications with either approach were associated with prolonged LOS, need for imaging, and diet restriction. LEVEL OF EVIDENCE: Level III Laryngoscope, 134:2678-2683, 2024.

Risk factors for developing subglottic and tracheal stenosis from the medical intensive care unit.

Objective: Endotracheal intubation is a common procedure in the medical intensive care unit (MICU), but it carries risk of complications including, but not limited to, subglottic stenosis (SGS) and tracheal stenosis (TS). Current literature suggests identifiable risk factors for the development of airway complications. This study is a comprehensive evaluation of potential risk factors in patients who developed SGS and TS following endotracheal intubation in our MICU. Methods: Patients intubated in our MICU were identified from 2013 to 2019. Diagnoses of SGS or TS within 1 year of MICU admission were identified. Data extracted included age, sex, body measurements, comorbidities, bronchoscopies, endotracheal tube size, tracheostomy, social history, and medications. Patients with prior diagnosis of airway complication, tracheostomy, or head and neck cancer were excluded. Univariate and multivariate logistic regressions were performed. Results: A total of 136 patients with TS or SGS were identified out of a sample of 6603 patients intubated in the MICU. Cases were matched to controls who did not develop airway stenosis based on identical Charlson Comorbidity Index scores. Eighty six controls were identified with a complete record of endotracheal/tracheostomy tube size, airway procedures, sociodemographic data, and medical diagnosis. Regression analysis showed that SGS or TS were associated with tracheostomy, bronchoscopy, chronic obstructive pulmonary disease, current tobacco use, gastroesophageal reflux disease, systemic lupus erythematosus, pneumonia, bronchitis, and numerous medication classes. Conclusion: Various conditions, procedures, and medications are associated with an increased risk of developing SGS or TS. Level of evidence: 4.

Killian Jamieson Diverticulum, the Great Mimicker: A Case Series and Contemporary Review.

OBJECTIVE: To assess barium esophagram (BAS) as a diagnostic marker for patients with Killian Jamieson diverticula (KJD). METHODS: Prospective, multicenter cohort study of individuals enrolled in the Prospective OUtcomes of Cricopharyngeus Hypertonicity (POUCH) Collaborative. Patient demographics, comorbidities, radiographic imaging reports, laryngoscopy findings, patient-reported outcome measures (PROM), and operative reporting were abstracted from a REDCap database and summarized using means, medians, percentages, frequencies. Paired t-tests and Wilcoxon Signed Rank test were used to test pre- to post-operative differences in RSI, EAT-10, and VHI-10 scores. Diagnostic test evaluation including sensitivity, specificity, positive, and negative predictive value with 95% confidence intervals were calculated comparing BAS findings to operative report. RESULTS: A total of 287 persons were enrolled; 13 (4%) patients were identified with confirmed KJD on operative reports. 100% underwent open transcervical excision. BAS has a 46.2% (95% confidence interval [CI]: 23.2, 70.9) sensitivity and 97.8% (95% CI: 95.3, 99.0) specificity in detecting a KJD and 50% (95% CI: 25.4, 74.6) positive predictive value but 97.4% (95%CI: 94.8, 98.7) negative predictive value. Preoperatively, patients reported mean (SD) RSI and EAT-10 of 19.4 (9) and 8.3 (7.5) accordingly. Postoperatively, patients reported mean (SD) RSI and EAT-10 as 5.4 (6.2) and 2.3 (3.3). Both changes in RSI and EAT-10 were statistically significant (p = 0.008, p = 0.03). CONCLUSION: KJD are rare and represent <5% of hypopharyngeal diverticula undergoing surgical intervention. Open transcervical surgery significantly improves symptoms of dysphagia. BAS has high specificity but low sensitivity in detecting KJD. LEVEL OF EVIDENCE: 4 Laryngoscope, 133:2110-2115, 2023.

Airway Management in Singers: A Cross-sectional Survey.

OBJECTIVE: To review and establish current practices regarding airway management in vocal professionals undergoing surgery. STUDY DESIGN: Cross-sectional survey SETTING: The setting included practitioners that treat vocal professionals across international sub-specialty societies. SUBJECTS AND METHODS: A twenty-one-item survey was sent to practitioners that routinely treat vocal professionals including the American Broncho-Esophagological Association, European Laryngological Society, and 2017 Fall Voice Conference attendees. It included questions regarding the respondents' demographics, preferences for airway control in non-laryngeal and laryngeal surgery, and peri-operative management. RESULTS: Total respondents (n = 163): 82.8% were Laryngologists, 4.3 % were General Otolaryngologists, 3.1% were Head & Neck Oncologists, and 6.8% were Speech-Language Pathologists. One hundred twenty-five of the participants (76.7%) classified their experience with vocal professionals as 'extensive' or 'often.' For non-laryngeal surgery, there was a tendency towards laryngeal mask airway (53.1%) over endotracheal intubation (46.9%). For professional singers, a smaller endotracheal tube was recommended. Size varied based on sex. For males, 88.5% recommended a tube ≤7.0 in non-singers; 98.2% recommended a tube ≤7.0 in singers. In females 76.1% recommended a tube ≤6.0 for non-singers; 94.6 % recommended a size ≤6.0 in a female singer. For laryngeal surgery, 14% of providers personally intubated patients over 90% of the time. Of the providers who work with trainees, 60.5% did not allow resident intubation. CONCLUSION: Objective data regarding precautions in airway management of professional voice users is scarce. This is the largest survey to date on current practices. Survey results indicate that smaller ETTs are preferred for singers, and that more experienced practitioners are preferred for the intubation.

Healthcare disparities for the development of airway stenosis from the medical intensive care unit.

Objectives/hypothesis: To identify sociodemographic factors associated with the development of airway stenosis (AS) among intubated medical intensive care unit (MICU) patients. Study design: Retrospective cohort study. Methods: A retrospective review of adult MICU intubated patients from 2013 to 2019 at a single academic institution was performed. Univariate and multivariate analysis with logistic regression examined associations between the development of AS and subsite abnormalities such as posterior glottic stenosis (PGS), subglottic stenosis (SGS), tracheal stenosis (TS), vocal fold immobility (VFI), and posterior glottic granuloma (PGG) with age, body mass index (BMI), height, weight, race, ethnicity, sex, rurality, Appalachian status, length of admission, distance to hospital, and median household income. Results: Of an overall sample of 6603 MICU patients, 449 intubated patients were included in the study, and 204 patients were found to have AS. AS was statistically associated with decreased driving distance to the hospital and increases in BMI. PGS was statistically associated with increases in age. TS was statistically associated with increases in admission duration and not having residence status in Appalachia. VFI was statistically associated with decreases in driving distance to the hospital and not having residence status in Appalachia. Additionally, black patients had a higher odds of developing VFI compared to Caucasian patients. Conclusion: AS is associated with sociodemographic factors such as age, BMI, shorter distance to hospital, admission duration, and no Appalachian status. These data demonstrate the need to further investigate the impact of social determinants of health on airway pathology and outcomes. Level of evidence: 4.

Low Pressure Low Frequency Jet Ventilation: Techniques, Safety and Complications.

OBJECTIVE: Manual jet ventilation is a specialized oxygenation and ventilation technique that is not available in all facilities due to lack of technical familiarity and fear of complications. The objective is to review our center's 15 year experience with low pressure low frequency jet ventilation (LPLFJV). METHODS: Retrospective review of procedures utilizing LPLFJV from 2005 to 2019 were performed collecting patient demographic, surgery type and complications. Fisher exact test, Chi square, and t-test were used to determine statistical significance. RESULTS: Four hundred fifty-seven patients underwent a total of 891 microlaryngeal surgeries-279 cases for voice disorders, 179 for lesions, and 433 for airway stenosis. The peak jet pressure for all cases did not exceed 20 psi and average peak pressure for the last 100 procedures in this case series was 14.9 ± 4.6 psi. The average lowest oxygen saturation for all cases was 95% ± 0.6%. Brief intubation was required in 154 cases (17%). Surgical duration was significantly longer for cases requiring intubation P < .001. The need for intubation was not associated with smoking or cardiopulmonary disease, but was strongly associated with body mass index (BMI). Intubation rates were 7% for normal weight (BMI < 25, N = 216), 13% for overweight (BMI 25-30, N = 282), 24% for obese (BMI 30-40, N = 342), and 37% for morbidly obese (BMI > 40, N = 52) patients. Three patients developed respiratory distress in the recovery unit and 2 patients required intubation. CONCLUSION: LPLFJV assisted by intermittent endotracheal intubation is an exceedingly safe and effective intraoperative oxygenation and ventilationmodality for a broad variety of laryngeal procedure.

Adverse Events after Rigid and Flexible Endoscopic Repair of Zenker's Diverticula: A Systematic Review and Meta-analysis.

OBJECTIVE: To determine adverse events after endoscopic flexible vs endoscopic rigid cricopharyngeal myotomy for treatment of Zenker's diverticulum (ZD). DATA SOURCES: Systematic review of MEDLINE, Web of Science, CINAHL, Clinicaltrials.gov, and Cochrane Central Register of Controlled Trials for all years according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Additional studies were identified from review citations and a by hand search of manuscripts referencing ZD. REVIEW METHODS: A structured literature search was conducted to identify studies for this systematic review. Methodological Index for Non-randomized Studies (MINORS) criteria were applied to assess study quality. For inclusion, each study had to provide data for at least 10 adult patients who had undergone endoscopic ZD repair reporting clear association with the postprocedure course in each case. Data extracted included all reported adverse events, recurrences, follow-up, and operative times. RESULTS: In total, 115 studies were included. All but 8 were retrospective case series. Sixty-one reported series of patients after rigid endoscopic stapler repair, 31 after rigid laser repair, and 13 with other rigid endoscopic instruments. Twenty-nine flexible endoscopic studies were included. Mortality, infection, and perforation were not significantly more likely in either the rigid or the flexible group, but bleeding and recurrence were more likely after flexible endoscopic techniques (20% vs <10% and 4% vs 0%, respectively). Dental injury and vocal fold palsy were reported rarely in the rigid endoscopic groups. CONCLUSIONS: Adverse events are rare after endoscopic Zenker's repair. The flexible approach minimizes exposure limitations and can be completed in some patients without general anesthesia. Transoral rigid approaches result in fewer revision surgeries compared with flexible diverticulotomy.

Cost Analysis of Channeled, Distal Chip Laryngoscope for In-office Laryngopharyngeal Biopsies.

OBJECTIVE: Given that financial considerations play an increasingly prominent role in clinical decision-making, we sought (1) to determine the cost-effectiveness of in-office biopsy for the patient, the provider, and the health-care system, and (2) to determine the diagnostic accuracy of in-office biopsy. STUDY DESIGN: Retrospective, financial analyses were performed. METHODS: Patients who underwent in-office (Current Procedural Terminology Code 31576) or operative biopsy (CPT Code 31535) for laryngopharyngeal lesions were included. Two financial analyses were performed: (1) the average cost of operating room (OR) versus in-office biopsy was calculated, and (2) a break-even analysis was calculated to determine the cost-effectiveness of in-office biopsy for the provider. In addition, the diagnostic accuracy of in-office biopsies and need for additional biopsies or procedures was recorded. RESULTS: Of the 48 patients included in the current study, 28 underwent in-office biopsy. A pathologic sample was obtained in 26 of 28 (92.9%) biopsies performed in the office. Of these patients, 16 avoided subsequent OR procedures. The average per patient cost was $7000 and $11,000 for in-office and OR biopsy, respectively. Break-even analysis demonstrated that the provider could achieve a profit 2 years after purchase of the necessary equipment. CONCLUSION: In-office laryngopharyngeal biopsies are accurate and, overall, more cost-effective than OR biopsies. Purchase of the channeled, distal chip laryngoscope and biopsy forceps to perform in-office biopsies can be profitable for a provider with a videolaryngoscopy tower. In-office biopsy should be considered the initial diagnostic tool for suspected laryngopharyngeal malignancies noted on videolaryngoscopy.

Impact of vocal fold augmentation and laryngoplasty on dyspnea in patients with glottal incompetence.

OBJECTIVES/HYPOTHESIS: Given that the vocal folds are active organs of respiration, reports of dyspnea in the context of glottic insufficiency are not uncommon. We hypothesize that improved glottal closure via framework surgery or vocal fold augmentation improves dyspnea symptoms. STUDY DESIGN: Retrospective review. METHODS: Charts of patients undergoing procedures to correct glottal insufficiency, either via vocal fold augmentation (VFA) or medialization laryngoplasty (ML) between December 2012 and September 2015 were reviewed (n = 189). Modified Borg Dyspnea Scale (MBDS) and Modified Medical Research Council Dyspnea Scale (MMRCDS) data were collected before and after intervention. Age, body mass index (BMI), and sex, as well as pulmonary and cardiac comorbidities were considered. Subgroup analysis was performed on individuals with subjective dyspnea prior to intervention. RESULTS: For the entire cohort, differences in the MMRCDS and MBDS were not statistically different pre- and postintervention (P = .20 and P = .12, respectively). Patients with BMI <30 experienced more improvement on the MBDS (P = .03). Both the MMRCDS and MMBDS improved post-procedure (P = .001 and P = .001, respectively) in patients reporting dyspnea prior to intervention. CONCLUSIONS: Patients with glottic insufficiency and dyspnea prior to intervention to improve glottic closure had a significant reduction in dyspnea following treatment. Conversely, subjects without complaints of dyspnea prior to intervention had variable outcomes with regard to dyspnea symptoms. Additionally, based on data from the entire cohort, VFA or ML did not worsen dyspnea symptoms. These data may assist in counseling and/or selection of patients considered for procedures to improve glottic closure. LEVEL OF EVIDENCE: 4. Laryngoscope, 128:427-429, 2018.

The Accuracy of the Laryngopharyngeal Reflux Diagnosis: Utility of the Stroboscopic Exam.

OBJECTIVE: To determine the prevalence and also accuracy of the laryngopharyngeal reflux (LPR) referring diagnosis and to determine the most useful clinical tool in arriving at the final diagnosis in a tertiary laryngology practice. STUDY DESIGN: Case series with planned data collection. SETTING: Six tertiary academic laryngology practices. SUBJECTS AND METHODS: We collected referring diagnosis and demographic information, including age, sex, ethnicity, referring physician, and whether or not patients had prior flexible laryngoscopy for 1077 patients presenting with laryngologic complaints from January 2010 and June 2013. Final diagnosis after the referred laryngologist's examination and the key diagnostic test used was then recorded. RESULTS: Of 1077 patients, 132 had a singular referring diagnosis of LPR. Only 47 of 132 patients (35.6%) had LPR confirmed on final primary diagnosis. Transnasal flexible laryngoscopy confirmed this in 27 of 47 (57.4%) patients. Eighty-five of 132 (64.4%) had a different final diagnosis than LPR. Sixty-five of 85 (76.5%) of these alternative pathologies were diagnosed with the aid of laryngeal stroboscopy. CONCLUSIONS: LPR appears to be an overused diagnosis for laryngologic complaints. For patients who have already had transnasal flexible laryngoscopic exams prior to their referral, laryngeal stroboscopy is the key diagnostic tool in arriving at the correct diagnosis.

Prevalence of Voice Disturbances in the Pediatric Craniofacial Patient Population.

OBJECTIVE: To report on the prevalence of voice disturbances in the pediatric craniofacial population and to prove that the pediatric Voice Handicap Index (pVHI) is a useful questionnaire for this unique population. STUDY DESIGN: Case series with chart review. SETTING: Tertiary care center. SUBJECTS: Pediatric patients seen by a pediatric otolaryngologist in a craniofacial clinic. METHODS: Consecutive patients (N = 366) seen by a single pediatric otolaryngologist in a craniofacial clinic from July 2011 to September 2012 were included. Any patient specifically referred for airway problems or voice difficulties completed a pVHI questionnaire. Patients each underwent an evaluation including flexible fiberoptic laryngoscopy and videostroboscopy. Voice disturbance was further characterized into dysphonia, hypernasality, or hyponasality. RESULTS: Of all the patients evaluated, 280 (77%) were specifically referred for airway problems or voice disturbance. Of those referred, 39 (10.7%) were found to have an organic vocal fold pathology causing dysphonia, as seen on the videostroboscopic examination; 53.7% of these lesions were attributable to potential iatrogenic causes. Hypernasality and hyponasality were seen in 116 (31.7%) and 78 (21.3%) patients, respectively. The pVHI was 3.95, 26.3, 11.34, and 10.53 for those with no voice disturbance, dysphonia, hypernasality, and hyponasality, respectively. CONCLUSION: Pediatric patients with craniofacial disorders have a higher prevalence of dysphonia than the general pediatric population. The majority of causes of dysphonia in these patients are possibly iatrogenic in origin. The pVHI serves as a useful questionnaire in this unique patient cohort to quantify the disability from not only dysphonia but also hypernasality and hyponasality.

Endoscope-assisted approach to excision of branchial cleft cysts.

OBJECTIVES/HYPOTHESIS: The purpose of this study is to describe an endoscope-assisted surgical technique for the excision of branchial cleft cysts and compare it to the standard approach. STUDY DESIGN: Retrospective case series review. METHODS: Twenty-seven cases described as branchial cleft excisions performed by a single surgeon at one academic medical center were identified between 2007 and 2014. Twenty-five cases (8 endoscopic, 17 standard approach) were included in the study. Cases were excluded if final pathology was malignant. Patient charts were reviewed, and two techniques were compared through analysis of incision size, operative time, and surgical outcomes. RESULTS: This study showed that the length of incision required for the endoscopic approach (mean = 2.13 ± 0.23) was significantly less than that of the standard approach (mean = 4.10 ± 1.46, P = 0.008) despite the fact that there was no significant difference in cyst size between the two groups (P = 0.09). The other variables examined, including operative time and surgical outcomes, were not significantly different between the two groups. CONCLUSION: This transcervical endoscope-assisted approach to branchial cleft cyst excision is a viable option for uncomplicated cases. It provides better cosmetic results than the standard approach and does not negatively affect outcomes, increase operative time, or result in recurrence. LEVEL OF EVIDENCE: 4. Laryngoscope, 126:1339-1342, 2016.

Management of airway compromise following thyroid cyst hemorrhage after thrombolytic therapy.

The risk of hemorrhage after therapeutic administration of tissue plasminogen activator (tPA) is well known. Cases of postadministration hemorrhage have been reported within many organ systems. We present a case of a 62-year-old female with undiagnosed thyroid goiter who received tPA for acute ischemic stroke and developed acute airway compromise. The surgical airway response team was called due to inability to ventilate or intubate. An incision into the mass during attempted tracheotomy released colloid and blood, decompressing the airway and facilitating ventilation and intubation. Hemithyroidectomy for mass removal was delayed for 3 days to allow normalization of post-tPA coagulopathy.

Extracellular and intracellular melanin in inflammatory middle ear disease.

OBJECTIVES/HYPOTHESIS: Melanin is a pigmented polymer with a known role in dermal solar protection. In vertebrates, melanogenesis has been reported in leukocyte populations, suggesting a potential role in innate immunity. In this study, we report the novel finding of melanin associated with chronic inflammation and speculate on its potential role in the middle ear and mastoid. STUDY DESIGN: Retrospective review of case series. METHODS: Medical records of six patients who demonstrated melanin in the ear were reviewed. RESULTS: Six patients from 1 to 63 years of age were identified with extracellular melanin and melanin-laden histiocytes within the middle ear and/or mastoid air cells at time of surgery. Concurrent intraoperative findings included cholesteatoma (n = 3), chronic suppurative otitis media (n = 2), and coalescent mastoiditis (n = 1). Histologically, extracellular melanin and melanin-laden histiocytes were identified by Fontana-Masson stain; absence of melanocytes was confirmed by the absence of Melan-A staining. One patient had a positive stain for CD163 (a marker for macrophages). CONCLUSION: This case series is the first demonstration of melanin within middle ear mucosa without melanocytes in immediate proximity or metastatic melanocytic lesions. Melanin's presence in the setting of inflammation suggests that there may be a heretofore unreported link between the pigmentary and immune systems in the middle ear. LEVEL OF EVIDENCE: 4.

Clinical testing of an alternate method of inserting bone-implanted fiducial markers.

BACKGROUND: Deep brain stimulation (DBS) surgery utilizes image guidance via bone-implanted fiducial markers to achieve the desired submillimetric accuracy and to provide means for attaching microstereotactic frames. For maximal benefit, the markers must be inserted to the correct depth since over-insertion leads to stripping and under-insertion leads to instability. PURPOSE: The purpose of the study was to test clinically a depth-release drive system, the PosiSeat™, versus manual insertion (pilot hole followed by manual screwing until tactile determined correct seating) for implanting fiducial markers into the bone. METHODS: With institutional review board approval, the PosiSeat™ was used to implant markers in 15 DBS patients (57 fiducials). On post-insertion CT scans, the depth of the gap between the shoulder of the fiducial markers and the closest bone surface was measured. Similar depth measurements were performed on the CT scans of 64 DBS patients (250 fiducials), who underwent manual fiducial insertion. RESULTS: Median of shoulder-to-bone distance for PosiSeat™ and manual insertion group were 0.03 and 1.06 mm, respectively. Fifty percent of the fiducials had the shoulder-to-bone distances within 0.01-0.09 mm range for the PosiSeat group and 0.04-1.45 mm range for the manual insertion group. These differences were statistically significant. CONCLUSIONS: A depth-release drive system achieves more consistent placement of bone-implanted fiducial markers than manual insertion.

Backstage at Broadway: a demographic study.

OBJECTIVES/HYPOTHESIS: To provide insight into the demographics and vocal habits of current Broadway musical theater performers. STUDY DESIGN: Prospective, Questionnaire. METHODS: Adult musical theater performers in Broadway Productions as defined by the League of American Theater Producers and the Actors' Equity Association were asked to complete a survey collecting demographic information, vocal health and habits, alcohol, tobacco, and drug use and information regarding their level of vocal comfort and threshold to miss performances based on their voice. Data were subjected to descriptive and statistical analysis based on sex and role type (lead vs. ensemble). RESULTS: One hundred thirty-five performers completed the survey from seven actively running shows. Ensemble members were younger and had not been in the business as long as performers in lead roles. Over 25% of respondents had been diagnosed with a vocal injury, yet the number of days missed per year due to voice problems was relatively low (1.7-4.7). Across all respondents, only approximately 54.8% reported consistently warming up before a performance and 7.4% reported consistently cooling down afterward. Nearly 91% of respondents reported regular alcohol consumption and tobacco use was 10.4%; 23.0% reported illicit drug use. CONCLUSIONS: This study marks the first time that vocal health has been addressed in this elite group of vocal professionals. The performer's low self-reported numbers of missed days is interesting particularly given that they appear to participate in harmful vocal health activities at the same rate as the general public.

Antiplatelet and anticoagulation therapy in microlaryngeal surgery.

OBJECTIVES/HYPOTHESIS: Indications for antiplatelet and anticoagulation use are expanding. There is no evidence to direct therapeutic management in patients undergoing microlaryngeal surgeries. Our aim was to compare bleeding complications between microlaryngeal surgeries performed for patients preoperatively taken off and maintained on antiplatelet and/or anticoagulation therapy. STUDY DESIGN: Retrospective cohort study. METHODS: Patients undergoing microlaryngeal surgeries (2008-2009) on baseline antiplatelet and/or anticoagulation therapy were identified. Records were reviewed to determine whether therapy was stopped preoperatively. The primary outcome, bleeding complication, was compared between those taken off and maintained on therapy. Patient characteristics, surgical data, and outcomes were assessed. RESULTS: Of 287 microlaryngeal surgeries, 26% were performed for patients on antiplatelet (23%) and/or anticoagulation (3%) therapy. There was no difference in bleeding complications between patients' naïve to and on baseline antiplatelet or anticoagulation therapy [naïve: 3.8% vs. on: 5.3%, P = 0.58] and no thromboembolic events. Among surgeries performed for patients on baseline antiplatelet therapy, 35% preoperatively stopped therapy. No observed difference in bleeding complications was observed between those taken off or maintained on therapy [off: 8.0% vs. on: 4.9%, P = 0.63]. Of 3% of surgeries performed for patients on warfarin, no bleeding complications occurred, even among the 8/10 with therapeutic international normalized ratios. CONCLUSIONS: Perioperative management decisions regarding antiplatelet and anticoagulation therapy are becoming more common. Results suggest that antiplatelet therapy can be maintained during microlaryngeal surgery without increasing bleeding risk. Further prospective research is required to confirm findings and rigorously investigate the safety of continuing warfarin and other anticoagulation therapy in these surgeries. LEVEL OF EVIDENCE: 4.