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Majellano EC, Clark VL, Vertigan A, Gibson PG, Bardin P, Leong P, McDonald VM. Living With Asthma and Vocal Cord Dysfunction/Inducible Laryngeal Obstruction: "I Just Can't Get Air In". THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:1326-1336. [PMID: 38290607 DOI: 10.1016/j.jaip.2024.01.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 02/01/2024]
Abstract
BACKGROUND Asthma and vocal cord dysfunction (VCD), also known as inducible laryngeal obstruction (ILO), may coexist, resulting in worse outcomes for patients. The experience of people with VCD/ILO and coexisting asthma is unknown. OBJECTIVE We sought to determine whether coexistent VCD/ILO and asthma have deleterious impacts on quality of life. METHODS We undertook a descriptive qualitative study using one-to-one semistructured interviews with 30 purposively recruited adult participants with a prior confirmed doctor asthma diagnosis and laryngoscopy-confirmed VCD/ILO. A thematic and content analysis was conducted to explore the data. RESULTS Participants were mostly female (63%), mean ± SD age 63 ± 12 years. Four themes were identified: trapped voice, altered life, knowledge about VCD/ILO, and looking for solutions. Participants reported their voice being trapped in their throat or the voice being suddenly cut off when talking or singing. Self-reported VCD/ILO symptoms including throat tightness and breathlessness were highlighted by participants. The second theme described how patients struggle to communicate or tended to shorten conversations. Insufficient knowledge and existing confusion regarding whether asthma was causing the breathlessness was described in the third theme. Looking for solutions depicted participants' diagnostic journey and how they sought an explanation for the symptoms. CONCLUSIONS People with asthma and coexisting VCD/ILO experience a substantial burden affecting the quality of life. These data describe the impact on patients with coexisting conditions and should be used to increase clinician awareness of the experience of VCD/ILO from patients' perspectives to support a personalized approach to care.
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Affiliation(s)
- Eleanor C Majellano
- National Health and Medical Research Council Centre for Research Excellence in Severe Asthma, University of Newcastle, Newcastle, New South Wales, Australia; National Health and Medical Research Council Centre for Research Excellence in Treatable Traits, Hunter Medical Research Institute Asthma and Breathing Research Program, Newcastle, New South Wales, Australia; School of Nursing and Midwifery, University of Newcastle, Newcastle, New South Wales, Australia
| | - Vanessa L Clark
- National Health and Medical Research Council Centre for Research Excellence in Severe Asthma, University of Newcastle, Newcastle, New South Wales, Australia; National Health and Medical Research Council Centre for Research Excellence in Treatable Traits, Hunter Medical Research Institute Asthma and Breathing Research Program, Newcastle, New South Wales, Australia; School of Nursing and Midwifery, University of Newcastle, Newcastle, New South Wales, Australia
| | - Anne Vertigan
- National Health and Medical Research Council Centre for Research Excellence in Treatable Traits, Hunter Medical Research Institute Asthma and Breathing Research Program, Newcastle, New South Wales, Australia; Speech Pathology Department, John Hunter Hospital, New Lambton Heights, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
| | - Peter G Gibson
- National Health and Medical Research Council Centre for Research Excellence in Severe Asthma, University of Newcastle, Newcastle, New South Wales, Australia; National Health and Medical Research Council Centre for Research Excellence in Treatable Traits, Hunter Medical Research Institute Asthma and Breathing Research Program, Newcastle, New South Wales, Australia; Department of Respiratory and Sleep Medicine, John Hunter Hospital, Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Philip Bardin
- Monash Lung, Sleep, Allergy and Immunology, Monash Health and Monash University, Melbourne, Victoria, Australia; School of Clinical Sciences, Monash Health and Monash University, Melbourne, Victoria, Australia
| | - Paul Leong
- Monash Lung, Sleep, Allergy and Immunology, Monash Health and Monash University, Melbourne, Victoria, Australia; School of Clinical Sciences, Monash Health and Monash University, Melbourne, Victoria, Australia
| | - Vanessa M McDonald
- National Health and Medical Research Council Centre for Research Excellence in Severe Asthma, University of Newcastle, Newcastle, New South Wales, Australia; National Health and Medical Research Council Centre for Research Excellence in Treatable Traits, Hunter Medical Research Institute Asthma and Breathing Research Program, Newcastle, New South Wales, Australia; School of Nursing and Midwifery, University of Newcastle, Newcastle, New South Wales, Australia; Department of Respiratory and Sleep Medicine, John Hunter Hospital, Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
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Leong P, Vertigan AE, Hew M, Baxter M, Phyland D, Hull JH, Carroll TL, Gibson PG, McDonald VM, Halvorsen T, Clemm HH, Vollsæter M, Røksund OD, Bardin PG. Diagnosis of vocal cord dysfunction/inducible laryngeal obstruction: An International Delphi Consensus Study. J Allergy Clin Immunol 2023; 152:899-906. [PMID: 37343843 DOI: 10.1016/j.jaci.2023.06.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/01/2023] [Accepted: 06/08/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND Vocal cord dysfunction/inducible laryngeal obstruction (VCD/ILO) is characterized by breathing difficulties in association with excessive supraglottic or glottic laryngeal narrowing. The condition is common and can occur independently; however, it may also be comorbid with other disorders or mimic them. Presentations span multiple specialties and misdiagnosis or delayed diagnosis is commonplace. Group-consensus methods can efficiently generate internationally accepted diagnostic criteria and descriptions to increase clinical recognition, enhance clinical service availability, and catalyze research. OBJECTIVES We sought to establish consensus-based diagnostic criteria and methods for VCD/ILO. METHODS We performed a modified 2-round Delphi study between December 7, 2021, and March 14, 2022. The study was registered at ANZCTR (Australian New Zealand Clinical Trials Registry; ACTRN12621001520820p). In round 1, experts provided open-ended statements that were categorized, deduplicated, and amended for clarity. These were presented to experts for agreement ranking in round 2, with consensus defined as ≥70% agreement. RESULTS Both rounds were completed by 47 international experts. In round 1, 1102 qualitative responses were received. Of the 200 statements presented to experts across 2 rounds, 130 (65%) reached consensus. Results were discussed at 2 international subject-specific conferences in June 2022. Experts agreed on a diagnostic definition for VCD/ILO and endorsed the concept of VCD/ILO phenotypes and clinical descriptions. The panel agreed that laryngoscopy with provocation is the gold standard for diagnosis and that ≥50% laryngeal closure on inspiration or Maat grade ≥2 define abnormal laryngeal closure indicative of VCD/ILO. CONCLUSIONS This Delphi study reached consensus on multiple aspects of VCD/ILO diagnosis and can inform clinical practice and facilitate research.
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Affiliation(s)
- Paul Leong
- Monash Lung Sleep Allergy & Immunology, Monash Health, Melbourne, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia.
| | - Anne E Vertigan
- Speech Pathology, John Hunter Hospital, Newcastle, Australia; Centre of Excellence in Treatable Traits, University of Newcastle, Newcastle, Australia
| | - Mark Hew
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia; AIRMed, Alfred Hospital, Melbourne, Australia
| | - Malcolm Baxter
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia; Ear Nose and Throat Surgery, Monash Health, Melbourne, Australia
| | - Debra Phyland
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia; Ear Nose and Throat Surgery, Monash Health, Melbourne, Australia
| | | | - Thomas L Carroll
- Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Division of Otolaryngology-Head and Neck Surgery, Brigham and Women's Hospital, Boston, Mass
| | - Peter G Gibson
- Centre of Excellence in Treatable Traits, University of Newcastle, Newcastle, Australia; Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, Australia
| | - Vanessa M McDonald
- Centre of Excellence in Treatable Traits, University of Newcastle, Newcastle, Australia; Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, Australia
| | - Thomas Halvorsen
- Department of Paediatric and Adolescent Medicine, Haukeland University Hospital, Bergen, Norway; Faculty of Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Hege Havstad Clemm
- Department of Paediatric and Adolescent Medicine, Haukeland University Hospital, Bergen, Norway; Faculty of Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Maria Vollsæter
- Department of Paediatric and Adolescent Medicine, Haukeland University Hospital, Bergen, Norway; Faculty of Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Ola Drange Røksund
- Department of Paediatric and Adolescent Medicine, Haukeland University Hospital, Bergen, Norway; Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Philip G Bardin
- Monash Lung Sleep Allergy & Immunology, Monash Health, Melbourne, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
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Leong P, Gibson PG, Vertigan AE, Hew M, McDonald VM, Bardin PG. Vocal cord dysfunction/inducible laryngeal obstruction-2022 Melbourne Roundtable Report. Respirology 2023; 28:615-626. [PMID: 37221142 PMCID: PMC10947219 DOI: 10.1111/resp.14518] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/08/2023] [Indexed: 05/25/2023]
Abstract
Vocal cord dysfunction/inducible laryngeal obstruction (VCD/ILO), is a common condition characterized by breathlessness associated with inappropriate laryngeal narrowing. Important questions remain unresolved, and to improve collaboration and harmonization in the field, we convened an international Roundtable conference on VCD/ILO in Melbourne, Australia. The aims were to delineate a consistent approach to VCD/ILO diagnosis, appraise disease pathogenesis, outline current management and model(s) of care and identify key research questions. This report summarizes discussions, frames key questions and details recommendations. Participants discussed clinical, research and conceptual advances in the context of recent evidence. The condition presents in a heterogenous manner, and diagnosis is often delayed. Definitive diagnosis of VCD/ILO conventionally utilizes laryngoscopy demonstrating inspiratory vocal fold narrowing >50%. Computed tomography of the larynx is a new technology with potential for swift diagnosis that requires validation in clinical pathways. Disease pathogenesis and multimorbidity interactions are complex reflecting a multi-factorial, complex condition, with no single overarching disease mechanism. Currently there is no evidence-based standard of care since randomized trials for treatment are non-existent. Recent multidisciplinary models of care need to be clearly articulated and prospectively investigated. Patient impact and healthcare utilization can be formidable but have largely escaped inquiry and patient perspectives have not been explored. Roundtable participants expressed optimism as collective understanding of this complex condition evolves. The Melbourne VCD/ILO Roundtable 2022 identified clear priorities and future directions for this impactful condition.
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Affiliation(s)
- Paul Leong
- Monash HealthMelbourneVictoriaAustralia
- Monash UniversityMelbourneVictoriaAustralia
| | - Peter G. Gibson
- John Hunter HospitalNewcastleNew South WalesAustralia
- Centre of Excellence in Treatable TraitsUniversity of NewcastleNewcastleNew South WalesAustralia
| | - Anne E. Vertigan
- John Hunter HospitalNewcastleNew South WalesAustralia
- Centre of Excellence in Treatable TraitsUniversity of NewcastleNewcastleNew South WalesAustralia
| | - Mark Hew
- Alfred HospitalMelbourneVictoriaAustralia
| | - Vanessa M. McDonald
- John Hunter HospitalNewcastleNew South WalesAustralia
- Centre of Excellence in Treatable TraitsUniversity of NewcastleNewcastleNew South WalesAustralia
| | - Philip G. Bardin
- Monash HealthMelbourneVictoriaAustralia
- Monash UniversityMelbourneVictoriaAustralia
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Koh J, Phyland D, Ruane L, Avram A, Leahy E, Lau KK, MacDonald M, Leong P, Baxter M, Bardin PG. Lessons from a failed randomized controlled trial of speech pathology intervention in vocal cord dysfunction. Respirology 2023; 28:406-408. [PMID: 36810850 DOI: 10.1111/resp.14477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/24/2023] [Indexed: 02/24/2023]
Affiliation(s)
- Joo Koh
- Department of Otolaryngology, Head and Neck Surgery, Monash Health, Melbourne, Victoria, Australia.,School of Clinical Sciences, Monash Health & University, Melbourne, Victoria, Australia
| | - Debra Phyland
- Department of Otolaryngology, Head and Neck Surgery, Monash Health, Melbourne, Victoria, Australia.,School of Clinical Sciences, Monash Health & University, Melbourne, Victoria, Australia
| | - Laurence Ruane
- School of Clinical Sciences, Monash Health & University, Melbourne, Victoria, Australia.,Australia Monash Lung, Sleep, Allergy and Immunology, Melbourne, Victoria, Australia
| | - Adriana Avram
- Australia Monash Lung, Sleep, Allergy and Immunology, Melbourne, Victoria, Australia
| | - Elizabeth Leahy
- Australia Monash Lung, Sleep, Allergy and Immunology, Melbourne, Victoria, Australia
| | - Kenneth K Lau
- Monash Health Diagnostic Imaging, Monash Hospital and University, Melbourne, Victoria, Australia
| | - Martin MacDonald
- School of Clinical Sciences, Monash Health & University, Melbourne, Victoria, Australia.,Australia Monash Lung, Sleep, Allergy and Immunology, Melbourne, Victoria, Australia
| | - Paul Leong
- School of Clinical Sciences, Monash Health & University, Melbourne, Victoria, Australia.,Australia Monash Lung, Sleep, Allergy and Immunology, Melbourne, Victoria, Australia
| | - Malcolm Baxter
- Department of Otolaryngology, Head and Neck Surgery, Monash Health, Melbourne, Victoria, Australia.,School of Clinical Sciences, Monash Health & University, Melbourne, Victoria, Australia
| | - Philip G Bardin
- School of Clinical Sciences, Monash Health & University, Melbourne, Victoria, Australia.,Australia Monash Lung, Sleep, Allergy and Immunology, Melbourne, Victoria, Australia
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Koh J, Phyland D, Baxter M, Leong P, Bardin PG. Vocal cord dysfunction/inducible laryngeal obstruction: novel diagnostics and therapeutics. Expert Rev Respir Med 2023; 17:429-445. [PMID: 37194252 DOI: 10.1080/17476348.2023.2215434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 05/15/2023] [Indexed: 05/18/2023]
Abstract
INTRODUCTION Vocal cord dysfunction/inducible laryngeal obstruction (VCD/ILO) is an important medical condition but understanding of the condition is imperfect. It occurs in healthy people but often co-exists with asthma. Models of VCD/ILO pathophysiology highlight predisposing factors rather than specific mechanisms and disease expression varies between people, which is seldom appreciated. Diagnosis is often delayed, and the treatment is not evidence based. AREAS COVERED A unified pathophysiological model and disease phenotypes have been proposed. Diagnosis is conventionally made by laryngoscopy during inspiration with vocal cord narrowing >50% Recently, dynamic CT larynx was shown to have high specificity (>80%) with potential as a noninvasive, swift, and quantifiable diagnostic modality. Treatment entails laryngeal retraining with speech pathology intervention and experimental therapies such as botulinum toxin injection. Multidisciplinary team (MDT) clinics are a novel innovation with demonstrated benefits including accurate diagnosis, selection of appropriate treatment, and reductions in oral corticosteroid exposure. EXPERT OPINION Delayed diagnosis of VCD/ILO is pervasive, often leading to detrimental treatments. Phenotypes require validation and CT larynx can reduce the necessity for laryngoscopy, thereby fast-tracking diagnosis. MDT clinics can optimize management. Randomized controlled trials are essential to validate speech pathology intervention and other treatment modalities and to establish international standards of care.
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Affiliation(s)
- Joo Koh
- Monash Health Department of Otolaryngology, Head and Neck Surgery, Monash Hospital and University, Melbourne, Australia
- Monash Lung Sleep Allergy & Immunology, Monash Hospital and University, Melbourne, Australia
| | - Debra Phyland
- Monash Health Department of Otolaryngology, Head and Neck Surgery, Monash Hospital and University, Melbourne, Australia
- School of Clinical Sciences, Faculty of Medicine, Nursing & Health Sciences, Monash University, Melbourne, Australia
| | - Malcolm Baxter
- Monash Health Department of Otolaryngology, Head and Neck Surgery, Monash Hospital and University, Melbourne, Australia
- Monash Lung Sleep Allergy & Immunology, Monash Hospital and University, Melbourne, Australia
| | - Paul Leong
- Monash Lung Sleep Allergy & Immunology, Monash Hospital and University, Melbourne, Australia
- Hudson Institute, Monash Hospital and University, Melbourne, Australia
| | - Philip G Bardin
- Monash Lung Sleep Allergy & Immunology, Monash Hospital and University, Melbourne, Australia
- Hudson Institute, Monash Hospital and University, Melbourne, Australia
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Leong P, Vertigan AE, Hew M, Baxter M, Phyland D, Hull JH, Carroll TL, Gibson PG, McDonald VM, Bardin PG. Diagnosis of vocal cord dysfunction / inducible laryngeal obstruction-A Delphi study protocol. PLoS One 2022; 17:e0279338. [PMID: 36580467 PMCID: PMC9799289 DOI: 10.1371/journal.pone.0279338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 12/05/2022] [Indexed: 12/30/2022] Open
Abstract
INTRODUCTION Currently there is no consistent and widely accepted approach to the diagnosis of vocal cord dysfunction/inducible laryngeal obstruction (VCD/ILO). Harmonised diagnostic methods are vital to enable optimal diagnosis, advance management and enable research. We aim to obtain consensus on how expert clinicians recognise and diagnose VCD/ILO. METHODS AND ANALYSIS Two-round modified Delphi, with workshop validation. ETHICS AND DISSEMINATION Institutional Board Review was obtained from the Monash Health Human Research Ethics Committee. The dissemination plan is for presentation and publication. REGISTRATION DETAILS Registered at Australia and New Zealand Clinical Trials Registry ACTRN12621001520820p.
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Affiliation(s)
- Paul Leong
- Monash Health, Melbourne, Victoria, Australia
- Monash University, Melbourne, Victoria, Australia
- * E-mail:
| | - Anne E. Vertigan
- John Hunter Hospital, Newcastle, Australia
- Centre of Excellence in Treatable Traits, University of Newcastle, Newcastle, Australia
| | - Mark Hew
- Monash University, Melbourne, Victoria, Australia
- Alfred Hospital, Melbourne, Victoria, Australia
| | - Malcolm Baxter
- Monash Health, Melbourne, Victoria, Australia
- Monash University, Melbourne, Victoria, Australia
| | - Debra Phyland
- Monash Health, Melbourne, Victoria, Australia
- Monash University, Melbourne, Victoria, Australia
| | | | - Thomas L. Carroll
- Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
| | - Peter G. Gibson
- John Hunter Hospital, Newcastle, Australia
- Centre of Excellence in Treatable Traits, University of Newcastle, Newcastle, Australia
| | - Vanessa M. McDonald
- John Hunter Hospital, Newcastle, Australia
- Centre of Excellence in Treatable Traits, University of Newcastle, Newcastle, Australia
| | - Philip G. Bardin
- Monash Health, Melbourne, Victoria, Australia
- Monash University, Melbourne, Victoria, Australia
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Fretheim-Kelly Z, Engan M, Clemm H, Andersen T, Heimdal JH, Strand E, Halvorsen T, Røksund O, Vollsæter M. Reliability of trans-laryngeal airway resistance measurements during maximal exercise. ERJ Open Res 2022; 8:00581-2021. [PMID: 35309036 PMCID: PMC8923134 DOI: 10.1183/23120541.00581-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/11/2022] [Indexed: 11/05/2022] Open
Abstract
Objective: Exercised induced laryngeal obstruction (EILO) is an important cause of exertional dyspnea. The diagnosis rests on visual judgement of relative changes of the laryngeal inlet during continuous laryngoscopy exercise (CLE) tests, but we lack objective measures that reflect functional consequences. We aimed to investigate repeatability and normal values of trans-laryngeal airway resistance measured at maximal intensity exercise.Methods: Thirty-one healthy non-smokers without exercise related breathing problems were recruited. Participants performed two CLE tests enabling verified positioning of two pressure sensors, one at the tip of the epiglottis (supraglottic) and one by the fifth tracheal ring (subglottic). Airway pressure and flow data were continuously collected breath-by-breath and used to calculate trans-laryngeal resistance at peak exercise. Laryngeal obstruction was assessed according to a standardised CLE-score system.Results: Data from 26 participants (16 females) with two successful tests and equal CLE scores on both test-sessions were included in the trans-laryngeal resistance repeatability analyses. The coefficient of repeatability (CR) was 0.62 cmH2O·L−1·s−1, corresponding to a CR% of 21%. Mean (sd) trans-laryngeal airway resistance (cmH2O·L−1·s−1) in participants with no laryngeal obstruction (n=15) was 2.88 (0.50) in females and 2.18 (0.50) in males. Higher CLE scores correlated with higher trans-laryngeal resistance in females (r=0.81, p<0.001).Conclusions: This study establishes trans-laryngeal airway resistance obtained during exercise as a reliable parameter in respiratory medicine, opening the door for more informed treatment decisions and future research on the role of the larynx in health and disease.
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Leong P, Phyland DJ, Koh J, Baxter M, Bardin PG. Middle airway obstruction: phenotyping vocal cord dysfunction or inducible laryngeal obstructions. THE LANCET. RESPIRATORY MEDICINE 2022; 10:3-5. [PMID: 34973210 DOI: 10.1016/s2213-2600(21)00501-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Paul Leong
- Lung, Sleep, Allergy and Immunology, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia; School of Clinical Sciences, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia.
| | - Debra J Phyland
- School of Clinical Sciences, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia; Ear Nose and Throat Surgery, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia
| | - Joo Koh
- School of Clinical Sciences, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia; Ear Nose and Throat Surgery, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia
| | - Malcolm Baxter
- School of Clinical Sciences, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia; Ear Nose and Throat Surgery, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia
| | - Philip G Bardin
- Lung, Sleep, Allergy and Immunology, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia; School of Clinical Sciences, Monash Health Clayton, Monash University, Clayton, VIC 3128, Australia
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Zheng M, Arora N, Bhatt N, O'Dell K, Johns M. Factors Associated With Tolerance for In-Office Laryngeal Laser Procedures. Laryngoscope 2021; 131:E2292-E2297. [PMID: 33405311 DOI: 10.1002/lary.29370] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/13/2020] [Accepted: 12/28/2020] [Indexed: 11/08/2022]
Abstract
OBJECTIVES/HYPOTHESIS A variety of laryngeal pathologies are increasingly being managed with in-office KTP laser (IOKTP) endoscopic procedures. The primary goal of this study was to identify patient characteristics and disease-related features that correlated with tolerance for IOKTP. STUDY DESIGN Retrospective chart review. METHODS The study was a retrospective review of adult patients undergoing office-based laryngeal laser procedures between November 2016 and December 2019 at a tertiary care center. Two blinded otolaryngologist reviewers scored videotaped recordings of IOKTP procedures and assessed severity and distribution of disease using a modified Derkay score, and evaluated procedure tolerance using a visual analog scale. RESULTS A total of 56 patients who received IOKTP procedures for laryngeal pathology were reviewed, 42 male and 14 female, with a mean age of 61 years. Gender, age, and BMI were not correlated with tolerance. There was a moderate, negative correlation between tolerance and total number of pathological anatomic laryngeal subsites (rs(56) = -0.35, P = .01). There was a weak, negative correlation between tolerance and total modified Derkay score (rs(56) = -0.29, P = .03). The median tolerance score was lower for patients with posterior lesions (Mdn = 6.4) compared with patients with non-posterior lesions (Mdn = 7.4), P = .04, and lower for current or former smokers (Mdn = 6.5) compared with never smokers (Mdn = 7.3), P = .04. CONCLUSION Patients with large disease burden or posterior lesions and patients with smoking history may exhibit poorer tolerance of IOKTP procedures, factors which can help guide pre-procedural counseling and management decisions. LEVEL OF EVIDENCE IV Laryngoscope, 131:E2292-E2297, 2021.
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Affiliation(s)
- Melissa Zheng
- Department of Otolaryngology-Head and Neck Surgery, University of Southern California, Los Angeles, California, U.S.A
| | - Nikhil Arora
- Keck School of Medicine, University of Southern California, Los Angeles, California, U.S.A
| | - Neel Bhatt
- Department of Otolaryngology-Head and Neck Surgery, University of Southern California, Los Angeles, California, U.S.A
| | - Karla O'Dell
- Department of Otolaryngology-Head and Neck Surgery, University of Southern California, Los Angeles, California, U.S.A
| | - Michael Johns
- Department of Otolaryngology-Head and Neck Surgery, University of Southern California, Los Angeles, California, U.S.A
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