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Dive into the research topics where David L. Witsell is active.

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Featured researches published by David L. Witsell.


Otolaryngology-Head and Neck Surgery | 2007

Clinical practice guideline: Adult sinusitis

Richard M. Rosenfeld; David R. Andes; Neil Bhattacharyya; Dickson Cheung; Steven Eisenberg; Theodore G. Ganiats; Andrea Gelzer; Daniel L. Hamilos; Richard C. Haydon; Patricia A. Hudgins; Stacie M. Jones; Helene J. Krouse; Lawrence H. Lee; Martin C. Mahoney; Bradley F. Marple; Col John P Mitchell; R. Nathan; Richard N. Shiffman; Timothy L. Smith; David L. Witsell

OBJECTIVE This guideline provides evidence-based recommendations on managing sinusitis, defined as symptomatic inflammation of the paranasal sinuses. Sinusitis affects 1 in 7 adults in the United States, resulting in about 31 million individuals diagnosed each year. Since sinusitis almost always involves the nasal cavity, the term rhinosinusitis is preferred. The guideline target patient is aged 18 years or older with uncomplicated rhinosinusitis, evaluated in any setting in which an adult with rhinosinusitis would be identified, monitored, or managed. This guideline is intended for all clinicians who are likely to diagnose and manage adults with sinusitis. PURPOSE The primary purpose of this guideline is to improve diagnostic accuracy for adult rhinosinusitis, reduce inappropriate antibiotic use, reduce inappropriate use of radiographic imaging, and promote appropriate use of ancillary tests that include nasal endoscopy, computed tomography, and testing for allergy and immune function. In creating this guideline the American Academy of Otolaryngology-Head and Neck Surgery Foundation selected a panel representing the fields of allergy, emergency medicine, family medicine, health insurance, immunology, infectious disease, internal medicine, medical informatics, nursing, otolaryngology-head and neck surgery, pulmonology, and radiology. RESULTS The panel made strong recommendations that 1) clinicians should distinguish presumed acute bacterial rhinosinusitis (ABRS) from acute rhinosinusitis caused by viral upper respiratory infections and noninfectious conditions, and a clinician should diagnose ABRS when (a) symptoms or signs of acute rhinosinusitis are present 10 days or more beyond the onset of upper respiratory symptoms, or (b) symptoms or signs of acute rhinosinusitis worsen within 10 days after an initial improvement (double worsening), and 2) the management of ABRS should include an assessment of pain, with analgesic treatment based on the severity of pain. The panel made a recommendation against radiographic imaging for patients who meet diagnostic criteria for acute rhinosinusitis, unless a complication or alternative diagnosis is suspected. The panel made recommendations that 1) if a decision is made to treat ABRS with an antibiotic agent, the clinician should prescribe amoxicillin as first-line therapy for most adults, 2) if the patient worsens or fails to improve with the initial management option by 7 days, the clinician should reassess the patient to confirm ABRS, exclude other causes of illness, and detect complications, 3) clinicians should distinguish chronic rhinosinusitis (CRS) and recurrent acute rhinosinusitis from isolated episodes of ABRS and other causes of sinonasal symptoms, 4) clinicians should assess the patient with CRS or recurrent acute rhinosinusitis for factors that modify management, such as allergic rhinitis, cystic fibrosis, immunocompromised state, ciliary dyskinesia, and anatomic variation, 5) the clinician should corroborate a diagnosis and/or investigate for underlying causes of CRS and recurrent acute rhinosinusitis, 6) the clinician should obtain computed tomography of the paranasal sinuses in diagnosing or evaluating a patient with CRS or recurrent acute rhinosinusitis, and 7) clinicians should educate/counsel patients with CRS or recurrent acute rhinosinusitis regarding control measures. The panel offered as options that 1) clinicians may prescribe symptomatic relief in managing viral rhinosinusitis, 2) clinicians may prescribe symptomatic relief in managing ABRS, 3) observation without use of antibiotics is an option for selected adults with uncomplicated ABRS who have mild illness (mild pain and temperature <38.3 degrees C or 101 degrees F) and assurance of follow-up, 4) the clinician may obtain nasal endoscopy in diagnosing or evaluating a patient with CRS or recurrent acute rhinosinusitis, and 5) the clinician may obtain testing for allergy and immune function in evaluating a patient with CRS or recurrent acute rhinosinusitis. DISCLAIMER This clinical practice guideline is not intended as a sole source of guidance for managing adults with rhinosinusitis. Rather, it is designed to assist clinicians by providing an evidence-based framework for decision-making strategies. It is not intended to replace clinical judgment or establish a protocol for all individuals with this condition, and may not provide the only appropriate approach to diagnosing and managing this problem.


Otolaryngology-Head and Neck Surgery | 2004

Development and validation of the Nasal Obstruction Symptom Evaluation (NOSE) scale.

Michael G. Stewart; David L. Witsell; Timothy L. Smith; Edward M. Weaver; Bevan Yueh; Maureen T. Hannley

OBJECTIVE: The study goal was to validate a disease-specific health status instrument for use in patients with nasal obstruction. DESIGN, SETTINGS, AND PATIENTS: The study consisted of a prospective instrument validation conducted at 4 academic medical centers with 32 adults with nasal septal deformity. METHODS: Prospective instrument validation occurred in 2 stages. Stage 1 was the development of a preliminary (alpha-version) instrument of potential items. Stage 2 was a test of the alpha-version for item performance, internal consistency, and test-retest reliability; construct, discriminant, criterion validity, and responsiveness; and creation of the final instrument. RESULTS: Items with poor performance were eliminated from the alpha-version instrument. In testing the final instrument, test-retest reliability was adequate at 0.702; internal consistency reliability was also adequate at 0.785. Validity was confirmed using correlation and comparison analysis, and response sensitivity was excellent. CONCLUSIONS: The Nasal Obstruction Symptom Evaluation Scale is a valid, reliable, and responsive instrument that is brief and easy to complete and has potential use for outcomes studies in adults with nasal obstruction.


Otolaryngology-Head and Neck Surgery | 2004

Outcomes after nasal septoplasty: Results from the Nasal Obstruction Septoplasty Effectiveness (NOSE) study ☆

Michael G. Stewart; Timothy L. Smith; Edward M. Weaver; David L. Witsell; Bevan Yueh; Maureen T. Hannley; Jonas T. Johnson

OBJECTIVE: Our goal was to assess disease-specific quality of life outcomes after nasal septoplasty in adults with nasal obstruction. DESIGN, SETTINGS, AND PATIENTS: We conducted a prospective observational outcomes multicenter study with 14 sites and 16 investigators, including private practice and academic settings. Patients had had septal deviation and symptomatic nasal obstruction for at least 3 months, and medical management had failed. METHODS: Patients with septal deviation completed a validated outcomes instrument (the Nasal Obstruction Septoplasty Effectiveness (NOSE) scale) before and 3 and 6 months after septoplasty, with or without partial turbinectomy. RESULTS: Fifty-nine patients underwent surgery; there was a significant improvement in mean NOSE score at 3 months after septoplasty (67.5 versus 23.1, P < 0.0001), and this improvement was unchanged at 6 months. Patient satisfaction was very high, and patients used significantly fewer nasal medications. CONCLUSIONS: In patients with septal deformity, nasal septoplasty results in significant improvement in disease-specific quality of life, high patient satisfaction, and decreased medication use. (Otolaryngol Head Neck Surg 2004;130:283–90.)


Otolaryngology-Head and Neck Surgery | 2006

Clinical Practice Guideline: Acute Otitis Externa

Richard M. Rosenfeld; Lance Brown; C. Ron Cannon; Rowena J Dolor; Theodore G. Ganiats; Maureen T. Hannley; Phillip Kokemueller; S. Michael Marcy; Peter S. Roland; Richard N. Shiffman; Sandra S. Stinnett; David L. Witsell

OBJECTIVE: This guideline provides evidence-based recommendations to manage diffuse acute otitis externa (AOE), defined as generalized inflammation of the external ear canal, which may also involve the pinna or tympanic membrane. The primary purpose is to promote appropriate use of oral and topical antimicrobials and to highlight the need for adequate pain relief. STUDY DESIGN: In creating this guideline, the American Academy of Otolaryngology-Head and Neck Surgery Foundation (AAO-HNSF) selected a development group representing the fields of otolaryngology-head and neck surgery, pediatrics, family medicine, infectious disease, internal medicine, emergency medicine, and medical informatics. The guideline was created with the use of an explicit, a priori, evidence-based protocol. RESULTS: The group made a strong recommendation that management of AOE should include an assessment of pain, and the clinician should recommend analgesic treatment based on the severity of pain. The group made recommendations that clinicians should: 1) distinguish diffuse AOE from other causes of otalgia, otorrhea, and inflammation of the ear canal; 2) assess the patient with diffuse AOE for factors that modify management (nonintact tympanic membrane, tympanostomy tube, diabetes, immunocompromised state, prior radiotherapy); and 3) use topical preparations for initial therapy of diffuse, uncomplicated AOE; systemic antimicrobial therapy should not be used unless there is extension outside of the ear canal or the presence of specific host factors that would indicate a need for systemic therapy. The group made additional recommendations that: 4) the choice of topical antimicrobial therapy of diffuse AOE should be based on efficacy, low incidence of adverse events, likelihood of adherence to therapy, and cost; 5) clinicians should inform patients how to administer topical drops, and when the ear canal is obstructed, delivery of topical preparations should be enhanced by aural toilet, placing a wick, or both; 6) when the patient has a tympanostomy tube or known perforation of the tympanic membrane, the clinician should prescribe a nonototoxic topical preparation; and 7) if the patient fails to respond to the initial therapeutic option within 48 to 72 hours, the clinician should reassess the patient to confirm the diagnosis of diffuse AOE and to exclude other causes of illness. And finally, the panel compiled a list of research needs based on limitations of the evidence reviewed. CONCLUSION: This clinical practice guideline is not intended as a sole source of guidance in evaluating patients with AOE. Rather, it is designed to assist clinicians by providing an evidence-based framework for decision-making strategies. It is not intended to replace clinical judgment or establish a protocol for all individuals with this condition and may not provide the only appropriate approach to the diagnosis and management of this problem. SIGNIFICANCE: This is the first, explicit, evidence-based clinical practice guideline on acute otitis externa, and the first clinical practice guideline produced independently by the AAO-HNSF.


Otology & Neurotology | 2002

Treatment of sudden sensorineural hearing loss with systemic steroids and valacyclovir.

Debara L. Tucci; Joseph C. Farmer; Russell D. Kitch; David L. Witsell

Objective To determine if the addition of an antiviral medication to systemic steroids improves recovery in the treatment of idiopathic sudden sensorineural hearing loss. Study Design Randomized, double-blind, placebo-controlled prospective multicenter clinical trial. Setting The study was administrated from a tertiary care center and clinical research institute; patients were enrolled by otolaryngologists in academic and private practice outpatient settings. Patients Inclusion criteria included 1) loss of at least 30 dB in 3 contiguous frequencies over <3 days in patients with previous audiometry, 2) marked loss of hearing in patients with prior subjectively normal hearing and no previous audiometry, with contralateral hearing taken as baseline, and 3) patients seen within 10 days of onset of hearing loss. Pretreatment evaluation included audiometry and complete blood cell count, complete blood chemistry, and fluorescent treponemal antibody absorption test. Auditory brainstem-evoked response or magnetic resonance imaging was recommended. Intervention Patients received prednisone (80 mg/d for 4 d, then tapered over 8 d) with placebo or prednisone with valacyclovir (1 g, 3 times a day for 10 days). Main Outcome Measure 1) Audiometric assessment at presentation, Week 2, and Week 6; 2) Hearing Screening Inventory questionnaire twice weekly for 6 weeks; and 3) acute Short Form-12 questionnaire at presentation and Week 2. Results Of 105 subjects enrolled in the study, 84 subjects were evaluable. There were no significant differences between placebo and valacyclovir treatment groups in terms of hearing recovery or symptom recovery on the basis of the Hearing Screening Inventory or Short Form-12 questionnaires. No adverse events were related to the use of valacyclovir. Conclusion Within the paradigm used in the current study, an antiviral medication did not provide more benefit than steroid alone in the treatment of idiopathic sudden sensorineural hearing loss.


Laryngoscope | 1994

ras Mutations and expression in head and neck squamous cell carcinomas

Wendell G. Yarbrough; Carol G. Shores; David L. Witsell; Mark C. Weissler; Mary E. Fidler; Tona M. Gilmer

Mutational activation and overexpression of the family of ras proto‐oncogenes have been associated with many human tumors. The role of mutations of H‐ras, K‐ras, and N‐ras, as well as expression of the respective protein products (p21s) in normal mucosa, dysplastic mucosa, and squamous cell carcinomas (SCCs) of the head and neck has not been fully described. In our study, 51 tumors (40 paraffin embedded and 11 fresh frozen) were examined to determine if mutational activation of ras is an important molecular event in head and neck SCC. Analyses of codons 12, 13, and 61 of H‐ras, K‐ras, and N‐ras revealed no mutations, suggesting that mutational activation of ras is not important in the majority of head and neck SCCs.


Otology & Neurotology | 2007

Treatment of tinnitus with gabapentin: a pilot study.

David L. Witsell; Maureen T. Hannley; Sandra Stinnet; Debara L. Tucci

Objective: To evaluate the effectiveness of gabapentin (Neurontin®) improve the disease-specific quality of life in patients with moderate tinnitus. Study Design: Randomized, double blind, placebo-controlled clinical trial. Setting: Single-center academic outpatient otolaryngology practice. Intervention: Gabapentin 1800 mg daily versus placebo. Main Outcome Measures: The study design is a randomized, double blind placebo controlled single site trial conducted in an academic medical center. Inclusion criteria included patients between ages 18 and 70 with a complaint of nonpulsatile, subjective tinnitus, bilateral or unilateral, greater than 3 months in duration. The primary outcome measure is the Tinnitus Handicap Inventory; secondary measures include the Profile of Mood States (POMS) rating scale, subjective tinnitus severity. The null hypothesis addressed in this study is that the drug would not result in significant alleviation of the symptom of tinnitus. Results: Seventy-six patients completed the trial; of these 52 received the drug. No significant differences were found between the two groups after 5 weeks of treatment with gabapentin. Conclusion: There is insufficient evidence to support the effectiveness of gabapentin in the treatment of tinnitus.


Otolaryngology-Head and Neck Surgery | 2008

Quality of life after tonsillectomy in children with recurrent tonsillitis

Nira A. Goldstein; Michael G. Stewart; David L. Witsell; Maureen T. Hannley; Edward M. Weaver; Bevan Yueh; Timothy L. Smith; Laura J. Orvidas

OBJECTIVE To describe changes in disease-specific and global quality of life (QOL) for children with recurrent or chronic tonsillitis at 6 months and 1 year after tonsillectomy using two validated instruments, the Tonsil and Adenoid Health Status Instrument (TAHSI) and the Child Health Questionaire-PF28 (CHQ-PF28). STUDY DESIGN AND SETTING A multicenter, prospective observational outcomes study. RESULTS Ninety-two children, mean age (SD) 10.6 (3.4) years, enrolled with follow-up available for 58 children at 6 months and 38 children at 1 year. The children showed significant improvements in all subscales of the TAHSI including airway and breathing, infection, health care utilization, cost of care, eating and swallowing (all P < 0.001), and behavior (P = 0.01). Significant improvements were also found on several subscales of the CHQ-PF28, such as general health perceptions, physical functioning, parental impact, and family activities (all P < 0.001). CONCLUSION/SIGNIFICANCE This uncontrolled study provides prospective evidence of improved disease-specific and global QOL in children after tonsillectomy.


Laryngoscope | 2006

Quality of life of patients with otitis media and caregivers: a multicenter study.

Jeanne Lee; David L. Witsell; Rowena J Dolor; Sandra S. Stinnett; Maureen T. Hannley

Objective: The objective of this study was to determine the quality of life of otitis media (OM) patients and their caregivers.


Otolaryngology-Head and Neck Surgery | 2008

Quality of life after tonsillectomy in adults with recurrent or chronic tonsillitis

David L. Witsell; Laura J. Orvidas; Michael G. Stewart; Maureen T. Hannley; Edward M. Weaver; Bevan Yueh; Timothy L. Smith; Nira A. Goldstein

OBJECTIVE To describe changes in disease-specific and global quality of life (QOL) for adults with recurrent or chronic tonsillitis at 6 months and 1 year after tonsillectomy using two instruments: the Tonsil and Adenoid Health Status Instrument (TAHSI) and the SF-12 Health Survey (12-item short form of SF-36 Health Survey). STUDY DESIGN AND SETTING Multicenter, prospective observational outcomes study. RESULTS Seventy-two adults, mean age 28.0 years (SD 7.2 years), were enrolled with follow-up available for 42 adults at 6 months and for 40 adults at 1 year. Patients showed significant improvements in all six subscales of the TAHSI: airway and breathing, infection, health care utilization, cost of care, eating and swallowing, and behavior (all P < 0.0001). Significant improvements were also found in the physical functioning subscale of the SF-12 at 1 year. CONCLUSION After tonsillectomy for recurrent and chronic tonsillitis, we found large improvements in disease-specific and global QOL. SIGNIFICANCE Most prior studies on tonsillectomy for recurrent tonsillitis have assessed only the frequency of infections as an outcome measure. This study describes the changes in QOL measured in our cohort of reporting adults after tonsillectomy for chronic or recurrent tonsillitis. This study provides prospective evidence of the effectiveness of tonsillectomy on adult QOL.

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Maureen T. Hannley

Medical College of Wisconsin

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Bevan Yueh

University of Minnesota

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Andrea Vambutas

Long Island Jewish Medical Center

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