Laryngoscope Investigative Otolaryngology最新文献

{"title":"The olfactory diary: Tracking awareness and consciousness of the sense of smell throughout the day","authors":"David T. Liu MD, PhD,&nbsp;Gerold Besser MD, PhD,&nbsp;Veronika Moser MD,&nbsp;Bernhard Prem MD,&nbsp;Gunjan Sharma MD,&nbsp;Marie Ehrgott,&nbsp;Bertold Renner MD,&nbsp;Christian A. Mueller MD","doi":"10.1002/lio2.1268","DOIUrl":"https://doi.org/10.1002/lio2.1268","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>The aim of the present study was to follow the daily course of patients with olfactory dysfunction and healthy controls and to assess (i) how many times a day, (ii) at which time, and (iii) in which aspect of daily life participants are conscious about their sense of smell.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>In this longitudinal study, 49 patients with smell loss and 30 healthy participants were enrolled. Olfactory function was assessed using the Sniffin’ Sticks. All participants received paper diaries designed for a 14-day period, featuring 12 rows representing 12 daily hours and six columns for various daily life aspects. They were instructed to mark their awareness of smell by indicating the relevant row and column in the diary. Following the return of the diaries, a second olfactory test was conducted within the patient group.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>On average, patients were consciously aware of their sense of smell around 8 times daily, while healthy participants noted it about 6.5 times a day. Both groups primarily focused on their sense of smell during activities related to “eating,” followed by considerations in “social life” and “personal hygiene.” Interestingly, distinct patterns emerged: patients peaked in awareness at 8 a.m. and 7 p.m., whereas healthy individuals showed peaks at 6 a.m., 12 p.m., and 7 p.m. Despite regular diary use, we observed no improvement in patients' olfactory function or related quality of life.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The olfactory diary is a valuable tool unveiling individual smell awareness patterns in patients with smell loss, aiding in counseling and patient management.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>4</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1268","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mucosal emphysematous head and neck infections: Scoping review and a case of emphysematous tonsillitis","authors":"Clare Moffatt BS,&nbsp;Solymar Torres Maldonado MD,&nbsp;Lauran K. Evans MD, MPH,&nbsp;Avetis Azizyan MD,&nbsp;Keith E. Blackwell MD","doi":"10.1002/lio2.1274","DOIUrl":"https://doi.org/10.1002/lio2.1274","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>This scoping review seeks to understand the existing research in otolaryngological mucosal emphysematous infections and to elucidate gaps in knowledge in the field. We also present a case of bilateral necrotizing tonsillitis in an immunocompromised patient with the first reported imaging findings of emphysematous abscess of the tonsils.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Data Sources</h3>\u0000 \u0000 <p>PubMed, Embase, Web of Science.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Review Methods</h3>\u0000 \u0000 <p>We conducted our review according to the Preferred Reporting Items for Systematic Reviews extension for Scoping Reviews. Patient presentation, management, and outcomes were summarized. We also describe the case of a patient with aplastic anemia found to have emphysematous tonsillitis, managed with intubation, broad spectrum intravenous antibiotics and bilateral tonsillectomy.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We identified seven case reports or series, involving nine total patients, who presented with emphysematous epiglottitis, supraglottitis, or tonsillitis. The hallmark imaging characteristic was submucosal “gas bubble” on computed tomography. Presenting symptoms included dysphagia, odynophagia, dysphonia, cough, and fever. Both immunocompetent and immunocompromised patients were affected. All patients were treated with broad spectrum antibiotics, and most with steroids. Patients at risk of airway compromise also underwent intubation and surgical drainage or debridement of the emphysematous infection.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Emphysematous pharyngeal infections are rare but potentially life-threatening infections that can progress rapidly, resulting in airway compromise and sepsis in both immunocompetent and immunocompromised individuals. We highlight the importance of swift intervention, with intubation and surgical intervention often required for severe cases. More research is needed on common pathogens and patient risk factors to guide future medical and surgical management.</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1274","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multimodal diagnosis of cerebrospinal fluid rhinorrhea: State of the art review and emerging concepts","authors":"Sina J. Torabi MD,&nbsp;Arash Abiri PhD,&nbsp;Xinlei Chen BS,&nbsp;Mehmet Senel PhD,&nbsp;Frank P. K. Hsu MD, PhD,&nbsp;Andrej Lupták PhD,&nbsp;Michelle Khine PhD,&nbsp;Edward C. Kuan MD, MBA","doi":"10.1002/lio2.1272","DOIUrl":"https://doi.org/10.1002/lio2.1272","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>Currently, diagnosis of cerebrospinal fluid (CSF) rhinorrhea relies on a multimodal approach, increasing costs and ultimately delaying diagnosis. In the United States and internationally, the crux of such a diagnosis relies on confirmation testing (via biomarkers) and localization (e.g., imaging). Biomarker testing may require analysis at an outside facility, resulting in delays diagnosis and treatment. In addition, specialized imaging may be nonspecific and often requires an active leak for diagnosis. There remains a clear need for innovative new technology.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A comprehensive review was conducted on both foundational and innovative scholarly articles regarding current and emerging diagnosis modalities for CSF.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Current modalities in CSF rhinorrhea diagnosis and localization include laboratory tests (namely, B2T immunofixation), imaging (CT and/or MRI) with or without intrathecal administration, and surgical exploration. Each of these modalities carry flaws, risks, and benefits, ultimately contributing to delays in diagnosis and morbidity. Promising emerging technologies include lateral flow immunoassays (LFI) and biologically functionalized field-effect transistors (BioFET). Nevertheless, these carry some drawbacks of their own, and require further validation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>CSF rhinorrhea remains a challenging diagnosis, requiring a multimodal approach to differentiate from nonpathologic causes of rhinorrhea. Current methods in diagnosis are imperfect, as the ideal test would be a readily accessible, inexpensive, rapid, highly accurate point-of-care test without the need for excess fluid or specialized processing. Critical work is being done to develop promising, new, improved tests, though a clear successor has not yet emerged.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>N/A</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1272","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The efficacy and safety of EGFR-TKI in recurrent/metastatic nasopharyngeal carcinoma patients: A systematic review and meta-analysis","authors":"Zeqi An MB,&nbsp;Libin He MB,&nbsp;Tuo Chen MB,&nbsp;Bosen Liang MB,&nbsp;Qiang Wu MD","doi":"10.1002/lio2.1279","DOIUrl":"https://doi.org/10.1002/lio2.1279","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>EGFR-tyrosine kinase inhibitor (TKI) is used to treat recurrent and metastatic nasopharyngeal carcinoma (rmNPC). This meta-analysis aims to study the efficacy and safety of EGFR-TKI in treating patients with rmNPC.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We conducted a systematic search of PubMed, Embase, and Web of Science up to November 2023, and included literature that met the criteria. We extracted objective response rate (ORR), disease control rate (DCR), median progression-free survival (mPFS), median overall survival (mOS), and adverse reaction-related events and performed meta-analysis using Stata 14.0.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>A total of nine articles were included. The summary results showed that the ORR for patients treated with EGFR-TKI for rmNPC was 38% (95% CI = 27%–49%), the DCR was 71% (95% CI = 61%–80%), the mPFS was 6.29 months (95% CI = 5.22–7.35), and the mOS was 15.94 months (95% CI = 14.68–17.20). The most common grade 3–4 adverse reaction events in these patients were mucositis, nasopharyngeal necrosis, and oral ulceration. We found an incidence rate of 49% (95% CI = 38%–61%) for grade 3–4 adverse events (AEs). The anti-PD1 combined with TKI treatment method is more effective than the EGFR-TKI alone for treating rmNPC.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The study shows that EGFR-TKI has good efficacy in treating rmNPC but does not translate into survival benefits and owns a high incidence of grade 3–4 AEs. More RCT trials are needed in the future to verify the efficacy of anti-PD1 combined with TKI treatment method.</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1279","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of chronic rhinosinusitis with nasal polyps: Development of the Nasal Polyp Patient Assessment Scoring Sheet tool","authors":"Saad Alsaleh MBBS, FRCSC,&nbsp;Nehal Kamal BSc Pharma,&nbsp;Claire Hopkins DM,&nbsp;Hussain Al Rand MD, Facharzt,&nbsp;Osama A. Marglani MD, FRCSC,&nbsp;Abdulmohsen Alterki FRCSC,&nbsp;Omar Abu Suliman MBBS, FACS,&nbsp;Talal Alandejani MD, FRCSC,&nbsp;Reda Kamel MD,&nbsp;Rashid Al Abri MD, FRCS,&nbsp;Naif H. Alotaibi MD, MSc,&nbsp;Ahmad Al Amadi MBChB, FRCS,&nbsp;Abdullah Bahakim MD, D.E.S,&nbsp;Joseph K. Han MD, FARS, FAAAAI,&nbsp;Amin Javer MD, FRCSC, FARS,&nbsp;Ahmad R. Sedaghat MD, PhD,&nbsp;Philippe Gevaert MD, PhD","doi":"10.1002/lio2.1277","DOIUrl":"https://doi.org/10.1002/lio2.1277","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Chronic rhinosinusitis (CRS) is a heterogeneous disorder with a wide range of validated subjective and objective assessment tools to assess disease severity. However, a comprehensive and easy-to-use tool that integrates these measures for determining disease severity and response to treatment is still obscure. The objective of this study was to develop a standardized assessment tool that facilitates diagnosis, uniform patient monitoring, and comparison of treatment outcomes between different centers both in routine clinical practice and in research.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>To develop this tool, published literature on assessment tools was searched on various databases. A panel of 12 steering committee members conducted an advisory board meeting to review the findings. Specific outcome measures to be included in a comprehensive assessment tool and follow-up sheet were then collated following consensus approval from the panel. The tool was further validated for content and revised with expert recommendations to arrive at the finalized Nasal Polyp Patient Assessment Scoring Sheet (N-PASS) tool.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The N-PASS tool was developed by integrating the subjective and objective measures for CRS assessment. Based on expert opinions, N-PASS was revised to be used as an easy-to-use guidance tool that captures patient-reported and physician-assessed components for comprehensively assessing disease status and response to treatment.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The N-PASS tool can be used to aid in the diagnosis and management of CRS cases with nasal polyps. The tool would also aid in improved monitoring of patients and pave the way for an international disease registry.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of evidence</h3>\u0000 \u0000 <p>Oxford Level 3.</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1277","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Endoscopic malleostapedotomy versus incudostapedotomy for stapes fixation with or without lateral chain fixation: A comparative outcomes study","authors":"Hyo One Son MD,&nbsp;Seoungjun Moon MD,&nbsp;Hanwool John Sung MD,&nbsp;Jin Woong Choi MD, PhD","doi":"10.1002/lio2.1273","DOIUrl":"https://doi.org/10.1002/lio2.1273","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>This study aims to evaluate and compare the surgical outcomes of endoscopic malleostapedotomy (EMS) and endoscopic incudostapedotomy (EIS).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A retrospective analysis was conducted on 36 consecutive ears in 33 patients who underwent stapes surgery using either EMS (EMS group) or EIS (EIS group). Operational practicability across surgical steps, postoperative hearing, operation time, switch of approach, and complications were compared between the two groups.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The EMS and EIS groups comprised seven (19.4%) and 29 ears (80.6%), respectively. The EMS group exhibited a greater proportion of moderate practicability in anchoring site exposure (42.9%, three of seven) and in securing the prosthesis (100%, seven of seven) in comparison to the EIS group, which had 0% (0 out of 29) and 41.4% (12 out of 29), respectively. Postoperative hearing improvements were equivalent between the groups, with EMS achieving a mean air-bone gap improvement of 28.8 dB and EIS of 23.2 dB. The ABG closure rates within 10 dB and 20 dB for the EMS group were 28.6% and 100%, respectively, and not significantly different from the EIS group (<i>p</i> = .103). However, the average surgical duration for EMS was extended by 77.4 min. The rate of complications was comparable between the groups (EMS 14.3%, EIS 10.3%, <i>p</i> = 1.000).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The findings indicate that while EMS requires a longer operation time because of decreased practicability in specific surgical steps, it provides comparable outcomes to EIS, underscoring the potential of endoscopic techniques to establish malleostapedotomy as a surgical option as it is with traditional incudostapedotomy.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>4.</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1273","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Streamlining quantification of age-related vocal atrophy","authors":"Hamzah A. Al-Awadi MAMS,&nbsp;Lisa Zughni CCC-SLP,&nbsp;Madeline Knutson CF-SLP,&nbsp;Abbey Carlson CCC-SLP,&nbsp;Mohamed A. Aboueisha MD,&nbsp;Zaroug A. Jaleel MD,&nbsp;Albert L. Merati MD,&nbsp;Neel K. Bhatt MD","doi":"10.1002/lio2.1241","DOIUrl":"https://doi.org/10.1002/lio2.1241","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>Age-related vocal atrophy (ARVA) has a significant impact on voice, communication, and quality of life. Vocal folds are bowed with incomplete glottic closure during phonation. Efficient quantification of vocal fold atrophy and collection of voice recordings in clinic remains challenging. The primary focus of this study is to describe a novel method for quantifying vocal atrophy and obtaining voice recordings in clinic among patients with ARVA.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Patients with ARVA were included. Voice recordings were collected during the clinic visit, and acoustic analysis was subsequently performed. A novel mobile application was used to quantify the bowing index (BI).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The study included 10 patients with ARVA, with a mean age of 72.7 ± 6.8 years and body mass index (BMI) of 24.9 ± 2.4 kg/m². Calculation of BI was feasible with a mean of 9.9 ± 1.8 units. On average, the audio recording took 2.6 ± 0.4 min, and subsequent analysis required 7.1 ± 1.8 min. Mean continuous speech <i>f</i>₀ was 212.1 ± 10.1 and 134.2 ± 31.5 Hz for male and female patients, respectively. Smoothed cepstral peak prominence was 8.9 ± 1.5 dB (male) and 8.5 ± 0.3 dB (female), and maximum phonation time between male and female patients was 16.7 ± 9.8 and 13.8 ± 1.9 s, respectively.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>We present a feasible and streamlined method for quantification of vocal fold atrophy in the clinic among patients with ARVA. The accuracy and reliability of this new method are areas of ongoing investigation. Quantification of vocal atrophy may help with clinical decisions, including diagnosing vocal atrophy and tracking treatment progress. Moreover, this method may improve research data acquisition without burdening patients and clinicians with additional time-consuming tasks.</p>\u0000 \u0000 <p>Level of evidence: 4.</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1241","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141069125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Maxitrol as an antibiofilm agent with potential applications in Otolaryngology-Head and Neck Surgery","authors":"Samuel J. M. Hale MBChB,&nbsp;Raymond Kim PhD,&nbsp;Mark O'Carroll MBChB,&nbsp;Kristi Biswas PhD,&nbsp;Brett Wagner Mackenzie PhD,&nbsp;Richard G. Douglas MD","doi":"10.1002/lio2.1245","DOIUrl":"https://doi.org/10.1002/lio2.1245","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p><i>Maxitrol</i> (Novartis) is a topical ophthalmic medication that contains polymyxin B, neomycin, and dexamethasone. If it possesses antibiofilm activity, it may be useful for treating diseases of the head and neck in which biofilms are implicated, including chronic rhinosinusitis, chronic suppurative otitis media and osteoradionecrosis. We investigated the <i>in vitro</i> efficacy of <i>Maxitrol</i> against <i>Staphylococcus aureus</i> and <i>Pseudomonas aeruginosa</i> biofilms.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Minimum biofilm eradication concentration (MBEC) assays were performed using biofilms of <i>P. aeruginosa</i> ATCC 27853 and <i>S. aureus</i> ATCC 6538 type strains, grown on 96-pin lids and treated in <i>Maxitrol</i> for 30 min, 1 h, or 6 h. Isolates of both species were collected from the middle meatuses of patients with cystic fibrosis. Biofilms of clinical isolates were grown and treated <i>in vitro</i> for 6 h with <i>Maxitrol</i>, both undiluted at full concentration and at the identified MBEC, then cultured to identify bacterial survival.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Neither type strain was eradicated at 30 min nor <i>S. aureus</i> at 1 h at any tested concentration. <i>P. aeruginosa</i> was eradicated by a median of 90% and 5.6% <i>Maxitrol</i> at 1 and 6 h, respectively, and <i>S. aureus</i> with 90% <i>Maxitrol</i> at 6 h. Undiluted <i>Maxitrol</i> reliably eradicated all clinical isolates of <i>P. aeruginosa</i> but only one of five <i>S. aureus</i> isolates.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p><i>Maxitrol</i> reliably eradicates <i>P. aeruginosa</i> biofilm but not <i>S. aureus</i> biofilm <i>in vitro</i><i>.</i> It may have a therapeutic role against biofilms in which <i>P. aeruginosa</i> is the dominant pathogen.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>N/A.</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1245","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141069126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N-acetylcysteine microparticles reduce cisplatin-induced RSC96 Schwann cell toxicity","authors":"Katherine Kedeshian BS,&nbsp;Michelle Hong MD,&nbsp;Larry Hoffman PhD,&nbsp;Ashley Kita MD","doi":"10.1002/lio2.1256","DOIUrl":"https://doi.org/10.1002/lio2.1256","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>Cisplatin is known to cause inner ear dysfunction. There is growing evidence that cisplatin-induced demyelination of spiral or Scarpa's ganglion neurons may play an additional role in drug-induced ototoxicity alongside afferent neuron injury. As Schwann cells produce myelin, there may be an opportunity to reduce ototoxic inner ear damage by promoting Schwann cell viability. This work describes a cellular model of cisplatin-induced Schwann cell injury and investigates the ability of the antioxidant N-acetylcysteine to promote Schwann cell viability. A local delivery system of drug-eluting microparticles was then fabricated, characterized, and investigated for bioactivity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>RSC96 rat Schwann cells were dosed with varying concentrations of cisplatin to obtain a dose curve and identify the lethal concentration of 50% of the cells (LC₅₀). In subsequent experiments, RSC96 cells were co-treated with cisplatin and both resuspended or eluted N-acetylcysteine. Cell viability was assessed with the CCK8 assay.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The LC₅₀ dose of cisplatin was determined to be 3.76 μM (<i>p</i> = 2.2 x 10⁻¹⁶). When co-dosed with cisplatin and a therapeutic concentration of resuspended or eluted N-acetylcysteine, Schwann cells had an increased viability compared to cells dosed with cisplatin alone.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>RSC96 Schwann cell injury following cisplatin insult is characterized in this in vitro model. Cisplatin caused injury at physiologic concentrations and N-acetylcysteine improved cell viability and mitigated this injury. N-acetylcysteine was packaged into microparticles and eluted N-acetylcysteine retained its ability to increase cell viability, thus demonstrating promise as a therapeutic to offset cisplatin-induced ototoxicity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>N/A Laryngoscope, 2023.</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1256","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140953051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailored re-roofing technique for pulsatile tinnitus caused by sigmoid sinus dehiscence or diverticulum","authors":"Jeong Gum Lee MD,&nbsp;Gina Na MD, PhD,&nbsp;Young Kyun Hur MD,&nbsp;Ji Min Yoon MD, PhD,&nbsp;Seung Min Kwak MD, PhD,&nbsp;Youn Jin Cho MD,&nbsp;Minbum Kim MD, PhD,&nbsp;In Seok Moon MD, PhD","doi":"10.1002/lio2.1251","DOIUrl":"https://doi.org/10.1002/lio2.1251","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Sigmoid sinus diverticulum/dehiscence (SSD) is one of the treatable causes of venous pulsatile tinnitus. It can be diagnosed using temporal bone computed tomography (CT) or magnetic resonance angiography/venography (MRA). In cases where patients find their symptoms intolerable, surgical treatment is typically preferred. Here, we have presented a novel surgical technique involving sigmoid sinus re-roofing and have analyzed its feasibility.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Between January 2020 and July 2023, approximately 150 patients with pulsatile tinnitus were evaluated at two different tertiary hospitals. Of these, 12 patients were diagnosed with SSD, and seven underwent surgical treatment. Five patients were treated with tailored reroofing (TRR) of the sigmoid sinus and two with transmastoid resurfacing (MRS) of the sigmoid sinus. We compared the Korean tinnitus handicap inventory (K-THI) score, pure tone audiogram (PTA) threshold, and CT findings before and a month after surgeries for these two techniques. The operation time was also analyzed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>In TRR cases, the K-THI score reduced from 55.0 ± 31.4 preoperatively to 4.0 ± 3.0 postoperatively, and the SSD was well-repositioned and covered by a bone chip postoperatively. In MRS cases, the K-THI score reduced from 41.0 ± 9.9 preoperatively to 15.0 ± 21.2 postoperatively, and the SSD was well-covered with bone cement postoperatively. The average surgical time of five TRR and two MRS cases were 77.5 ± 32.5 and 174.0 ± 75.0 min, respectively. No complications were noted.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Despite the insufficient number of cases, we noted that TRR requires a reasonable amount of time, involves a smaller incision, and may provide favorable outcomes compared to conventional MRS in cases of pulsatile tinnitus associated with SSD.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of evidence</h3>\u0000 \u0000 <p>IV.</p>\u0000 </section>\u0000 </div>","PeriodicalId":48529,"journal":{"name":"Laryngoscope Investigative Otolaryngology","volume":"9 3","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lio2.1251","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140953052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}