Faculty Bibliography

OBJECTIVES/HYPOTHESIS: Although clinical dogma suggests the value of laryngeal visualization (flexible laryngoscopy and stroboscopy) in dysphonic patients, recently published clinical guidelines suggest that, in many cases, history and/or physical examination are sufficient to guide clinical decision-making regarding the timing of such examinations. We sought to prospectively quantify the diagnostic accuracy of history, laryngoscopy, and stroboscopy using direct laryngoscopy as the gold standard. STUDY DESIGN: Expert survey. METHODS: Six laryngologists were presented with vignettes including history and physical examination (HPE), laryngosocpy, and stroboscopy. Questions regarding diagnosis, the certainty of diagnosis, and subsequent management plans were posed. Operative findings via direct laryngoscopy were employed as a comparator. RESULTS: The diagnostic accuracy of HPE was quite low (5%). The accuracy of diagnosis increased substantially following laryngeal imaging; 68.3% for both flexible laryngoscopy and stroboscopy. Particular diagnoses were more consistently identified; cancer, for example, was much more accurately identified on laryngoscopy (100%) and stroboscopy (100%) rather than HPE alone (33%). Cancer was selected as the diagnosis in 10 of 60 HPEs, though was only correct once and missed in five cases. In contrast, no diagnoses of cancer were missed following laryngoscopic and/or stroboscopic examinations. CONCLUSION: These findings confirm the value of laryngeal visualization (flexible laryngoscopy and stroboscopy) in dysphonic patients, and the lack of accuracy of history and physical examination in determining the diagnosis in patients with hoarseness. Laryngoscope, 2013.

OBJECTIVE/HYPOTHESIS: To determine the efficacy of the potassium titanyl phosphate (KTP) laser in lesion reduction, as well as preservation of mucosal wave and glottic closure in a cohort of patients with benign laryngeal pathology across multiple institutions. STUDY DESIGN: Multi-institutional and retrospective. METHODS: One hundred two patients who underwent in-office KTP procedures at multiple academic laryngology practices with at least a single follow-up visit were included. Image analysis was used to quantify vocal fold lesion size before and after treatment. A subset of images was analyzed by expert reviewers to determine the impact of this treatment on glottic closure and mucosal wave. RESULTS: Statistically, when considering all lesions, KTP induced a significant reduction in lesion size. Post hoc analyses revealed some lesion specificity; all lesions decreased in size, with the exception of vocal fold scar. Mucosal wave and glottic closure were improved or unchanged in more than 90% of the patients examined. The inter- and intrarater reliabilities of the lesion quantification method were excellent. CONCLUSIONS: With great care and insight, the KTP laser appears to be a valuable tool for the treatment of various benign laryngeal lesions. Furthermore, KTP laser therapy appears to preserve or improve mucosal wave and glottic closure. The lesion measurement protocol previously described by our group appears to be reliable.

OBJECTIVES: The recently published Clinical Practice Guideline: Hoarseness (Dysphonia) revealed major deficits in the literature regarding relatively routine clinical decision-making. One of the more controversial points in the Guideline regarded the utility and timing of laryngeal visualization via flexible laryngoscopy, potentially because of sparse literature regarding the risks and potential morbidity. We sought to prospectively address this issue in order to optimize evaluation protocols. METHODS: Two-hundred fifty consecutive patients with a variety of complaints completed a survey after undergoing flexible laryngoscopy. The survey queried 1) demographics; 2) discomfort of pretreatment anesthesia and scope placement in the nose and pharynx; 3) fear of future examinations; and 4) patient perception and past experience. Concurrently, the laryngoscopist reported the complications and anatomic variations encountered. RESULTS: The discomfort and pain ratings from both the anesthetic spray and the scope placement were low. No statistically significant differences were observed with regard to sex; however, women reported greater fear associated with examinations (p = 0.0001). Anatomic abnormalities were observed in 14.4% of patients, and these patients reported greater discomfort, pain, and fear regarding the examination. No adverse events were observed. CONCLUSIONS: Flexible laryngoscopy was well tolerated, with little to no risk. The presence of nasal anatomic abnormalities predicted increased discomfort.

OBJECTIVES: The recently published Clinical Practice Guideline raised issues related to the value and timing of laryngoscopy in patients with hoarseness. We sought to determine the extent to which these guidelines concur with clinical practice among members of the American Broncho-Esophagological Association (ABEA). METHODS: A web-based survey was distributed to ABEA members, composed of four sections: 1) background and demographics; 2) information regarding the appropriate length of time that new-onset dysphonia may be managed before laryngeal visualization, given particular comorbidities; 3) the frequency and risks of office-based flexible transnasal laryngoscopy; and 4) the overall value of laryngoscopy and stroboscopy. RESULTS: Seventy-one ABEA members completed the survey; they had a combined 1,468 years of post-residency experience. Approximately 75% of respondents were involved in a fully academic practice. Across all respondents, an average of 11 patients with new voice complaints were seen per week. Overall, 98.6% of respondents believe that laryngoscopy is very valuable. Stridor in a neonate and potential foreign bodies were both conditions necessitating laryngoscopy on the day of presentation. In patients with no serious underlying condition(s), the mean duration until laryngoscopy was 12.96 days (range, 0 to 30 days). CONCLUSIONS: These data suggest that the current practice patterns among experts in the field are divergent from the recently published Guideline.

Objective: Glucocorticoids are commonly used treatments in otolaryngology, but guidelines about their use are vague and irregular. We sought to assess clinical practices with regard to glucocorticoid use for patients with laryngeal disease and to ascertain factors driving clinician drug choice. Method: A web-based survey was distributed to otolaryngologists via email using the Ear, Nose, and Throat (ENT) Journal database. This survey was composed of 20 questions and collected the following data from respondents: 1) indications for the use of glucocorticoids in their practice, 2) decision-making process influencing the choice of glucocorticoid, 3) background and demographics. Results: Two hundred eight otolaryngologists completed the survey, with 99% (n = 196) reporting that glucocorticoids were valuable to their practice. "Previous experience/results," "familiarity," and "use in practice" (n = 144, 114, and 79, respectively) were commonly cited reasons for choosing a particular glucocorticoid, whereas pharmacokinetic profile and "academic literature" were infrequently cited concerns. Only 54.4% (n = 106) of respondents said that they were more likely to prescribe glucocorticoids for vocal performers as compared to other patients. Additionally, most respondents said side effects only "occasionally" prevented them from prescribing glucocorticoids to patients. Conclusion: These results suggest that glucocorticoid prescription practices vary greatly between otolaryngologists, and drug choice is driven primarily by clinician preference rather than more objective factors. These findings indicate a need for further research about this powerful class of drugs, and the importance of establishing clear, appropriate guidelines regarding their use.

Educational Objective: At the conclusion of this presentation, the participants should be able to define "collision tumor", describe a novel collision tumor of the parotid, and discuss the complexity in managing similar unexpected operative findings.
Objective(s): 1) To present a novel collision tumor of the parotid gland: concurrent squamous cell carcinoma and small cell lymphoma; and 2) to analyze the operative approach to collision tumors.
Study Design: Case report. Abridged Case History: A 75 year old male with left ear lobule melanoma was concurrently found to have a right parotid mass. Pre-operative CT showed a right parotid mass and all FNA attempts were non-diagnostic. The patient was taken to the operating room for excision of the left ear melanoma, as well as for right superficial parotidectomy and right modified neck dissection. The operation was complicated by frozen pathology suggestive of a novel collision tumor.
Result(s): The final histopathology revealed components of both squamous cell carcinoma and small cell lymphoma in both the parotid tumor and ipsilateral cervical lymph nodes. The combination of a parotid collision tumor containing squamous cell carcinoma and small cell lymphoma has never been described and poses a diagnostic and therapeutic challenge. This particular tumor combination is especially complex as the therapeutic approach to each tumor is distinct: squamous cell carcinoma is most often approached surgically, whereas lymphoma is primarily treated with chemotherapy. Ultimately, each tumor must be treated independently and consideration should be given to treating the more lethal component, though the timing and method of such treatment is still a path yet uncharted.
Conclusion(s): Given the rarity of collision tumors, it is difficult to establish a standardized treatment plan, however, perhaps through future reporting of similar cases better therapeutic recommendations can be made

OBJECTIVES: To determine the efficacy and describe the evolution of the "components separation" technique for abdominal wall repair in 200 consecutive patients. DESIGN: Retrospective medical record review. SETTING: Northwestern Memorial Hospital, Chicago, Illinois. PATIENTS: Two hundred consecutive patients who underwent ventral hernia repair using the components separation technique. INTERVENTIONS: Biological and permanent meshes were used in select patients to augment the repair of the midline fascial closure but were not used as "bridging" materials. MAIN OUTCOME MEASURES: Hernia recurrence rates and major and minor complication rates for the overall series and for the different techniques. RESULTS: Primary components separation (n = 158) yielded a 22.8% recurrence rate. Closure of the midline tissues with augmentation of the repair using an acellular cadaveric dermis underlay (n = 18) had a 33.3% recurrence rate requiring a second operation, whereas intra-abdominal soft polypropylene mesh (n = 18) had 0% recurrence (P = .04). Elevated body mass index was a significant risk factor predicting hernia recurrence (P = .003). Contamination (P = .04) and enterocutaneous fistula (P = .02) at the time of surgery were associated with increased major complications, whereas body mass index (P = .01) and diabetes mellitus (P = .04) were associated with increased minor complications. CONCLUSIONS: Large complex hernias can be reliably repaired using the components separation technique despite the presence of open wounds, the need for bowel surgery, and numerous comorbidities. The long-term strength of the hernia repair is not augmented by acellular cadaveric dermis but seems to be improved with soft polypropylene mesh.

BACKGROUND: The search continues for the "ideal" repair of the midline ventral hernia, and the components separation technique has a low, but still concerning, hernia recurrence rate. The authors hypothesize that adding prosthetic or bioprosthetic meshes to the midline closure during components separation would reduce recurrence rates with minimal added morbidity. METHODS: Over a 3-year period, patients had a components separation procedure where either acellular cadaveric dermis (n = 26) or soft polypropylene mesh (n = 28) was used as an intraperitoneal underlay for reinforcement of the midline repair, but not as a "bridging material." In 36 operations, the mesh or cadaveric dermis was placed at the time of the components separation, and in the remaining cases (n = 18), the underlay was used to treat a recurrence after components separation. RESULTS: Cadaveric dermis was associated with a 46 percent "true" recurrence rate that required reoperation (mean follow-up, 17.3 months), whereas soft polypropylene mesh had a significantly lower recurrence rate of 11 percent (p = 0.0057) during a follow-up period of 16 months. Because of a higher incidence of concomitant bowel surgery and contamination in the cadaveric dermis group, additional subset analysis of uncontaminated cases was performed, demonstrating a 61 percent recurrence rate for cadaveric dermis compared with 12 percent for soft polypropylene (p = 0.0017). No significant differences in major and minor complications were seen between groups. CONCLUSION: Soft polypropylene mesh, but not acellular dermis, demonstrates acceptably low complication and hernia recurrence rates when used as a reinforcement of the midline ventral hernia closure in conjunction with components separation.