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Chang JL, Goldberg AN, Alt JA, Alzoubaidi M, Ashbrook L, Auckley D, Ayappa I, Bakhtiar H, Barrera JE, Bartley BL, Billings ME, Boon MS, Bosschieter P, Braverman I, Brodie K, Cabrera-Muffly C, Caesar R, Cahali MB, Cai Y, Cao M, Capasso R, Caples SM, Chahine LM, Chang CP, Chang KW, Chaudhary N, Cheong CSJ, Chowdhuri S, Cistulli PA, Claman D, Collen J, Coughlin KC, Creamer J, Davis EM, Dupuy-McCauley KL, Durr ML, Dutt M, Ali ME, Elkassabany NM, Epstein LJ, Fiala JA, Freedman N, Gill K, Boyd Gillespie M, Golisch L, Gooneratne N, Gottlieb DJ, Green KK, Gulati A, Gurubhagavatula I, Hayward N, Hoff PT, Hoffmann OM, Holfinger SJ, Hsia J, Huntley C, Huoh KC, Huyett P, Inala S, Ishman SL, Jella TK, Jobanputra AM, Johnson AP, Junna MR, Kado JT, Kaffenberger TM, Kapur VK, Kezirian EJ, Khan M, Kirsch DB, Kominsky A, Kryger M, Krystal AD, Kushida CA, Kuzniar TJ, Lam DJ, Lettieri CJ, Lim DC, Lin HC, Liu SY, MacKay SG, Magalang UJ, Malhotra A, Mansukhani MP, Maurer JT, May AM, Mitchell RB, Mokhlesi B, Mullins AE, Nada EM, Naik S, Nokes B, Olson MD, Pack AI, Pang EB, Pang KP, Patil SP, Van de Perck E, Piccirillo JF, Pien GW, Piper AJ, Plawecki A, Quigg M, Ravesloot MJ, Redline S, Rotenberg BW, Ryden A, Sarmiento KF, Sbeih F, Schell AE, Schmickl CN, Schotland HM, Schwab RJ, Seo J, Shah N, Shelgikar AV, Shochat I, Soose RJ, Steele TO, Stephens E, Stepnowsky C, Strohl KP, Sutherland K, Suurna MV, Thaler E, Thapa S, Vanderveken OM, de Vries N, Weaver EM, Weir ID, Wolfe LF, Tucker Woodson B, Won CH, Xu J, Yalamanchi P, Yaremchuk K, Yeghiazarians Y, Yu JL, Zeidler M, Rosen IM. International Consensus Statement on Obstructive Sleep Apnea. Int Forum Allergy Rhinol 2023; 13:1061-1482. [PMID: 36068685 PMCID: PMC10359192 DOI: 10.1002/alr.23079] [Citation(s) in RCA: 55] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Evaluation and interpretation of the literature on obstructive sleep apnea (OSA) allows for consolidation and determination of the key factors important for clinical management of the adult OSA patient. Toward this goal, an international collaborative of multidisciplinary experts in sleep apnea evaluation and treatment have produced the International Consensus statement on Obstructive Sleep Apnea (ICS:OSA). METHODS Using previously defined methodology, focal topics in OSA were assigned as literature review (LR), evidence-based review (EBR), or evidence-based review with recommendations (EBR-R) formats. Each topic incorporated the available and relevant evidence which was summarized and graded on study quality. Each topic and section underwent iterative review and the ICS:OSA was created and reviewed by all authors for consensus. RESULTS The ICS:OSA addresses OSA syndrome definitions, pathophysiology, epidemiology, risk factors for disease, screening methods, diagnostic testing types, multiple treatment modalities, and effects of OSA treatment on multiple OSA-associated comorbidities. Specific focus on outcomes with positive airway pressure (PAP) and surgical treatments were evaluated. CONCLUSION This review of the literature consolidates the available knowledge and identifies the limitations of the current evidence on OSA. This effort aims to create a resource for OSA evidence-based practice and identify future research needs. Knowledge gaps and research opportunities include improving the metrics of OSA disease, determining the optimal OSA screening paradigms, developing strategies for PAP adherence and longitudinal care, enhancing selection of PAP alternatives and surgery, understanding health risk outcomes, and translating evidence into individualized approaches to therapy.
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Affiliation(s)
- Jolie L. Chang
- University of California, San Francisco, California, USA
| | | | | | | | - Liza Ashbrook
- University of California, San Francisco, California, USA
| | | | - Indu Ayappa
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | | | | | | | - Maurits S. Boon
- Sidney Kimmel Medical Center at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Pien Bosschieter
- Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Itzhak Braverman
- Hillel Yaffe Medical Center, Hadera Technion, Faculty of Medicine, Hadera, Israel
| | - Kara Brodie
- University of California, San Francisco, California, USA
| | | | - Ray Caesar
- Stone Oak Orthodontics, San Antonio, Texas, USA
| | | | - Yi Cai
- University of California, San Francisco, California, USA
| | | | | | | | | | | | | | | | | | - Susmita Chowdhuri
- Wayne State University and John D. Dingell VA Medical Center, Detroit, Michigan, USA
| | - Peter A. Cistulli
- Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - David Claman
- University of California, San Francisco, California, USA
| | - Jacob Collen
- Uniformed Services University, Bethesda, Maryland, USA
| | | | | | - Eric M. Davis
- University of Virginia, Charlottesville, Virginia, USA
| | | | | | - Mohan Dutt
- University of Michigan, Ann Arbor, Michigan, USA
| | - Mazen El Ali
- University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | - Kirat Gill
- Stanford University, Palo Alto, California, USA
| | | | - Lea Golisch
- University Hospital Mannheim, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | | | | | | | - Arushi Gulati
- University of California, San Francisco, California, USA
| | | | | | - Paul T. Hoff
- University of Michigan, Ann Arbor, Michigan, USA
| | - Oliver M.G. Hoffmann
- University Hospital Mannheim, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | | | - Jennifer Hsia
- University of Minnesota, Minneapolis, Minnesota, USA
| | - Colin Huntley
- Sidney Kimmel Medical Center at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | | | | | - Sanjana Inala
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | | | | | | | | | | | | | | | | | - Meena Khan
- Ohio State University, Columbus, Ohio, USA
| | | | - Alan Kominsky
- Cleveland Clinic Head and Neck Institute, Cleveland, Ohio, USA
| | - Meir Kryger
- Yale School of Medicine, New Haven, Connecticut, USA
| | | | | | | | - Derek J. Lam
- Oregon Health and Science University, Portland, Oregon, USA
| | | | | | | | | | | | | | - Atul Malhotra
- University of California, San Diego, California, USA
| | | | - Joachim T. Maurer
- University Hospital Mannheim, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Anna M. May
- Case Western Reserve University, Cleveland, Ohio, USA
| | - Ron B. Mitchell
- University of Texas, Southwestern and Children’s Medical Center Dallas, Texas, USA
| | | | | | | | | | - Brandon Nokes
- University of California, San Diego, California, USA
| | | | - Allan I. Pack
- University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | | | | | | | | | | | | | | | - Mark Quigg
- University of Virginia, Charlottesville, Virginia, USA
| | | | - Susan Redline
- Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Armand Ryden
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | | | - Firas Sbeih
- Cleveland Clinic Head and Neck Institute, Cleveland, Ohio, USA
| | | | | | | | | | - Jiyeon Seo
- University of California, Los Angeles, California, USA
| | - Neomi Shah
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | | | - Ryan J. Soose
- University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | - Erika Stephens
- University of California, San Francisco, California, USA
| | | | | | | | | | - Erica Thaler
- University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sritika Thapa
- Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Nico de Vries
- Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | | | - Ian D. Weir
- Yale School of Medicine, New Haven, Connecticut, USA
| | | | | | | | - Josie Xu
- University of Toronto, Ontario, Canada
| | | | | | | | | | | | - Ilene M. Rosen
- University of Pennsylvania, Philadelphia, Pennsylvania, USA
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2
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Sarkis LM, Jones AC, Ng A, Pantin C, Appleton SL, MacKay SG. Australasian Sleep Association position statement on consensus and evidence based treatment for primary snoring. Respirology 2023; 28:110-119. [PMID: 36617387 PMCID: PMC10108143 DOI: 10.1111/resp.14443] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 12/11/2022] [Indexed: 01/09/2023]
Abstract
Primary snoring impacts a significant portion of the adult population and has the potential to significantly impair quality of life. The purpose of these guidelines is to provide evidence-based recommendations to assist Australasian practitioners in the management of adult patients who present with primary snoring without significant obstructive sleep apnoea. The Timetable, Methodology and Standards by which this Position Statement has been established is outlined in the Appendix S1. The main recommendations are: Weight loss, and reduced alcohol consumption should be recommended, where appropriate If clinical judgement dictates, benzodiazepine and opioid reduction or avoidance may be advised Positional therapy should be considered in supine dominant snorers In dentate patients, Mandibular advancement devices (MAD) should be recommended as a first line treatment following assessment by both an appropriate Dentist and Sleep physician Continuous positive airway pressure (CPAP) devices may be recommended in patients with primary snoring in those already committed to their use or willing to try Surgical treatment of primary snoring by an appropriately credentialled surgeon may be advised and includes nasal (adjunctive), palatal and other interventions This position statement has been designed based on the best available current evidence and our combined expert clinical experience to facilitate the management of patients who present with primary snoring. It provides clinicians with a series of both non-surgical and surgical options with the aim of achieving optimal symptom control and patient outcomes. This is the first such set of recommendations to be established within Australasia and has also been reviewed and endorsed by the Australasian Sleep Association.
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Affiliation(s)
- Leba M Sarkis
- Otolaryngology Head and Neck Surgery Department, The Wollongong Hospital, Wollongong, New South Wales, Australia.,Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Andrew C Jones
- Respiratory and Sleep Medicine Department, The Wollongong Hospital, Wollongong, New South Wales, Australia
| | - Andrew Ng
- Centre for Sleep Disorders & Respiratory Failure St George Hospital, The Lucas Institute NSW, Australia
| | | | - Sarah L Appleton
- Flinders Health and Medical Research Institute- Sleep Health (Adelaide Institute for Sleep Health), College of Medicine of Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Stuart G MacKay
- Otolaryngology Head and Neck Surgery Department, The Wollongong Hospital, Wollongong, New South Wales, Australia.,School of Medicine, University of Wollongong, New South Wales, Australia
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Paidi G, Beesetty A, Jean M, Aziz Greye FP, Siyam T, Fleming MF, Nealy J, Kop L, Sandhu R. The Management of Obstructive Sleep Apnea in Primary Care. Cureus 2022; 14:e26805. [PMID: 35971363 PMCID: PMC9373878 DOI: 10.7759/cureus.26805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2022] [Indexed: 11/05/2022] Open
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Improving Nasal Airflow with a Novel Nasal Breathing Stent. Dent J (Basel) 2022; 10:dj10050081. [PMID: 35621534 PMCID: PMC9139877 DOI: 10.3390/dj10050081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/05/2022] [Accepted: 05/05/2022] [Indexed: 02/06/2023] Open
Abstract
Nasal obstruction requires close attention, as it is a risk factor for obstructive sleep apnea (OSA). This study evaluated airflow rates of our newly designed nasal breathing stent (NBS) compared with those of existing nasal dilators in 10 adult men. We hypothesized that the NBS would expand the nasal passage more than the other nasal dilators by means of airflow measurements. We compared airflow measurements between the NBS and three existing appliances and no appliance. Velocity measurements were recorded by analyzing 499 videographic images when each appliance was placed next to a steam generator at 0, 5, and 10 mm from the outlet port for airflow visualization. The peak nasal inspiratory flow (PNIF) rate was measured using an inspiratory flow meter. The NBS resulted in significantly higher airflow velocity measurements at all distances from the outlet port and a higher PNIF rate than the other appliances. Thus, the NBS offers a significantly decreased resistance to air movement compared with other appliances. Future in-depth investigations are required to demonstrate the use of NBS as a nasal dilator in conjunction with continuous positive airway pressure/oral appliance treatments in patients with OSA.
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Abstract
Assessment of the nose is critical in evaluating obstructive sleep apnea (OSA) because the nose plays an important role in the physiology of sleep by regulating nasal airway resistance and stimulating ventilation. Nasal obstruction is common in sleep apnea, contributes to OSA, and interferes with tolerance of OSA treatment with continuous positive airway pressure (CPAP) or oral appliances. Medical treatment of nasal obstruction and rhinitis with nasal corticosteroid sprays is associated with improved OSA severity and sleep symptoms. Surgery for nasal obstruction, including septoplasty, turbinate reduction, rhinoplasty, and sinus surgery, improves OSA-related quality-of-life measures and CPAP tolerance.
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Ng BA, Mamikoglu B, Ahmed MS, Corey JP. The Effect of External Nasal Dilators as Measured by Acoustic Rhinometry. EAR, NOSE & THROAT JOURNAL 2019. [DOI: 10.1177/014556139807701011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Bernard A. Ng
- Department of Surgery, Section of Otolaryngology/Head and Neck Surgery, The University of Chicago, Chicago, Illinois
| | - Bulent Mamikoglu
- Department of Surgery, Section of Otolaryngology/Head and Neck Surgery, The University of Chicago, Chicago, Illinois
| | - Mohammed S. Ahmed
- Department of Surgery, Section of Otolaryngology/Head and Neck Surgery, The University of Chicago, Chicago, Illinois
| | - Jacquelynne P. Corey
- Department of Surgery, Section of Otolaryngology/Head and Neck Surgery, The University of Chicago, Chicago, Illinois
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Abstract
Obstructive sleep apnea (OSA) is a highly prevalent condition in the context of the global obesity epidemic with significant medical comorbidities and psychosocial implications. The first-line treatment of OSA is continuous positive airway pressure (CPAP). There is evidence to demonstrate an association between nasal obstruction and OSA. Therefore, medications and surgical interventions to address nasal obstruction may play a role in the treatment of OSA. In addition, surgical correction of nasal obstruction has been shown to improve CPAP tolerance and compliance.
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Affiliation(s)
- Mahmoud I Awad
- Department of Otolaryngology-Head and Neck Surgery, Weill Cornell Medical College, 1305 York Avenue, 5th Floor, New York, NY 10021, USA
| | - Ashutosh Kacker
- Department of Otolaryngology-Head and Neck Surgery, Weill Cornell Medical College, 1305 York Avenue, 5th Floor, New York, NY 10021, USA.
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8
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Abstract
The impact of treating nasal obstruction in obstructive sleep apnea (OSA) patients is still intensively discussed at congresses. This is likely due to the highly conflicting results of nasal treatments in regard to restorative sleep on the one hand, and their influence on the severity of OSA on the other. Both conservative and surgical nasal treatments result in a highly significant improvement of sleep quality. Patients' sleep is more restorative, which has a huge impact on several quality of life parameters. In contrast, the impact of conservative and surgical nasal treatments on the severity of OSA measured using the apnea-hypopnea index is very limited, apart from rare exceptions. However, there are preliminary data indicating that successful nasal surgery may facilitate or enable nasal ventilation therapy by lowering the effective pressure.
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Yagihara F, Lorenzi-Filho G, Santos-Silva R. Nasal Dilator Strip is an Effective Placebo Intervention for Severe Obstructive Sleep Apnea. J Clin Sleep Med 2017; 13:215-221. [PMID: 27707442 DOI: 10.5664/jcsm.6450] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 08/22/2016] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES The aim of this study was to evaluate the effects of nasal dilator strip (NDS) as a placebo intervention compared with continuous positive airway pressure (CPAP) treatment in patients with severe obstructive sleep apnea (OSA). METHODS Patients were treated with both NDS and nasal CPAP. The sequence was randomized and interposed by 15 days of washout. Polysomnography was performed at baseline and on the first night of intervention with NDS and CPAP (titration). The Epworth Sleepiness Scale (ESS), Functional Outcomes of Sleep Questionnaire (FOSQ), and Beck Depression Inventory (BDI) were completed at baseline and at the end of both interventions. A questionnaire on the comfort and satisfaction (0 = no to 10 = total) was completed at the end of each intervention. RESULTS Twenty-six patients with OSA were evaluated (19 male; age 46.3 ± 9.3 y; body mass index 33.2 ± 5.1 kg/m2; ESS 15.8 ± 4.1; apnea-hypopnea index 60.7 ± 25.2). Adherence was high in both NDS (98%) and CPAP interventions (94%; 5.8 ± 1.7 h/night). In contrast to the baseline values, NDS intervention had no significant effect on all polysomnographic parameters, but NDS improved somnolence (ESS 13.0 ± 5.4, p = 0.001) and depressive symptoms (BDI 7.7 ± 6.9, p = 0.005). Reported satisfaction was significantly higher for CPAP than for NDS (sleep quality 9.2 ± 0.8 vs. 6.1 ± 2.1; wake up at morning: 8.6 ± 1.2 vs. 6.0 ± 2.2; daily activities: 8.9 ± 1.4 vs. 5.8 ± 1.5; quality of life: 8.3 ± 2.1 vs. 3.8 ± 3.5, p < 0.001), but similar low levels of difficulty for both interventions were observed (1.3 ± 2.2 vs. 0.3 ± 1.3, p = 0.098). CONCLUSIONS Our data indicate that NDS is an attractive placebo intervention for randomized controlled trials evaluating the effects of CPAP in sleepy patients with OSA.
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Affiliation(s)
- Fabiana Yagihara
- Faculdade de Medicina da Universidade de São Paulo, Heart Institute (InCor), Pulmonary Division, Sleep Laboratory, São Paulo, Brazil
| | - Geraldo Lorenzi-Filho
- Faculdade de Medicina da Universidade de São Paulo, Heart Institute (InCor), Pulmonary Division, Sleep Laboratory, São Paulo, Brazil.,Núcleo Interdisciplinar da Ciência do Sono (NICS), São Paulo, Brazil
| | - Rogerio Santos-Silva
- Faculdade de Medicina da Universidade de São Paulo, Heart Institute (InCor), Pulmonary Division, Sleep Laboratory, São Paulo, Brazil.,Núcleo Interdisciplinar da Ciência do Sono (NICS), São Paulo, Brazil
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Affiliation(s)
- Hye Mi Jee
- Department of Pediatrics, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
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Nasal Dilators (Breathe Right Strips and NoZovent) for Snoring and OSA: A Systematic Review and Meta-Analysis. Pulm Med 2016; 2016:4841310. [PMID: 28070421 PMCID: PMC5187471 DOI: 10.1155/2016/4841310] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/29/2016] [Accepted: 10/10/2016] [Indexed: 12/15/2022] Open
Abstract
Objective. To systematically review the international literature for studies evaluating internal (NoZovent) and external (Breathe Right Strips) nasal dilators as treatment for obstructive sleep apnea (OSA). Study Design. Systematic review with meta-analysis. Methods. Four databases, including PubMed/MEDLINE, were searched through September 29, 2016. Results. One-hundred twelve studies were screened, fifty-eight studies were reviewed, and fourteen studies met criteria. In 147 patients, the apnea-hypopnea index (AHI) was reported, and there was an improvement from a mean ± standard deviation (M ± SD) of 28.7 ± 24.0 to 27.4 ± 23.3 events/hr, p value 0.64. There was no significant change in AHI, lowest oxygen saturation, or snoring index in OSA patients when using nasal dilators. However, a subanalysis demonstrated a slight reduction in apnea index (AI) with internal nasal dilators (decrease by 4.87 events/hr) versus minimal change for external nasal dilators (increase by 0.64 events/hr). Conclusion. Although nasal dilators have demonstrated improved nasal breathing, they have not shown improvement in obstructive sleep apnea outcomes, with the exception of mild improvement in apnea index when internal nasal dilators were used.
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Abstract
OBJECTIVE: The study goal was to critically evaluate 3 popular noninvasive treatments for snoring: an oral spray lubricant applied before bedtime, a nasal strip designed to maintain nasal valve patency, and a head-positioning pillow. STUDY DESIGN: Prospective, randomized blinded clinical trial of 3 popular noninvasive snore aids using objective acoustic snoring analysis and subjective patient and bed-partner questionnaires in 40 snoring patients. A digital recorder allowed snoring analysis with data collected in the home environment over 1 week. RESULTS: There is neither objective nor subjective benefit to the use of tested popular noninvasive snore aids. Palatal snoring, palatal loudness, average loudness of snoring, averaged palatal flutter frequency, and respiratory disturbance index did not significantly change when comparing the 3 snoring aids with no treatment. Subjective comments and complications are reviewed as well. CONCLUSION: This is the first prospective comparison trial of popular noninvasive snoring aids. There is no significant objective or subjective snoring improvement in the anti-snoring aids studied compared with the use of no aid. SIGNIFICANCE: Outcome studies aid in verifying or refuting claims made by popular noninvasive snore aids. (Otolaryngol Head Neck Surg 2004;130: 649-58.)
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Affiliation(s)
- Peter G Michaelson
- Department of Otolaryngology-Head and Neck Surgery, Wilford Hall USAF Medical Center, San Antonio, TX 78236, USA
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Abstract
Obstructive sleep apnea is a common condition, primarily caused by narrowing of the nasal and pharyngeal airway. Treatment with continuous positive airway pressure (CPAP) is considered the first line of therapy, but long-term compliance is only about 40%, often because of nasal obstruction. Any nasal obstruction can worsen CPAP compliance. Treatment of the nasal obstruction with topical nasal steroid sprays or nasal dilators has been shown to improve sleep disordered breathing. Surgical treatment of nasal obstruction, has been shown to improve sleep disordered breathing, as well as CPAP requirement and compliance with CPAP.
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Affiliation(s)
- Samuel A Mickelson
- Advanced Ear Nose & Throat Associates, The Atlanta Snoring & Sleep Disorders Institute, 960 Johnson Ferry Road Northeast, Suite 200, Atlanta, GA 30342, USA.
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Wilhelm CP, deShazo RD, Tamanna S, Ullah MI, Skipworth LB. The nose, upper airway, and obstructive sleep apnea. Ann Allergy Asthma Immunol 2015; 115:96-102. [PMID: 26250769 DOI: 10.1016/j.anai.2015.06.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 06/02/2015] [Accepted: 06/03/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Chelle P Wilhelm
- Division of Clinical Immunology/Allergy, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi; Division of Pulmonary/Critical Care/Sleep Medicine, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi
| | - Richard D deShazo
- Division of Clinical Immunology/Allergy, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi; Division of Pulmonary/Critical Care/Sleep Medicine, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi.
| | - Sadeka Tamanna
- Department of Pediatrics, University of Mississippi Medical Center, Jackson, Mississippi
| | - M Iftekhar Ullah
- Department of Pediatrics, University of Mississippi Medical Center, Jackson, Mississippi
| | - Leigh Baldwin Skipworth
- Division of Clinical Immunology/Allergy, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi
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Michels DDS, Rodrigues ADMS, Nakanishi M, Sampaio ALL, Venosa AR. Nasal involvement in obstructive sleep apnea syndrome. Int J Otolaryngol 2014; 2014:717419. [PMID: 25548569 PMCID: PMC4273597 DOI: 10.1155/2014/717419] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 11/09/2014] [Indexed: 12/03/2022] Open
Abstract
Numerous studies have reported an association between nasal obstruction and obstructive sleep apnea syndrome (OSAS), but the precise nature of this relationship remains to be clarified. This paper aimed to summarize data and theories on the role of the nose in the pathophysiology of sleep apnea as well as to discuss the benefits of surgical and medical nasal treatments. A number of pathophysiological mechanisms can potentially explain the role of nasal pathology in OSAS. These include the Starling resistor model, the unstable oral airway, the nasal ventilatory reflex, and the role of nitric oxide (NO). Pharmacological treatment presents some beneficial effects on the frequency of respiratory events and sleep architecture. Nonetheless, objective data assessing snoring and daytime sleepiness are still necessary. Nasal surgery can improve the quality of life and snoring in a select group of patients with mild OSAS and septal deviation but is not an effective treatment for OSA as such. Despite the conflicting results in the literature, it is important that patients who are not perfectly adapted to CPAP are evaluated in detail, in order to identify whether there are obstructive factors that could be surgically corrected.
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Affiliation(s)
- Daniel de Sousa Michels
- Department of Otorhinolaryngology and Head and Neck Surgery, Brasília University Hospital, HUB, SGAN 605, Avenida L2 Norte, 70830-200 Brasília, DF, Brazil
| | | | - Márcio Nakanishi
- Department of Otorhinolaryngology and Head and Neck Surgery, Brasília University Hospital, HUB, SGAN 605, Avenida L2 Norte, 70830-200 Brasília, DF, Brazil
| | - André Luiz Lopes Sampaio
- Department of Otorhinolaryngology and Head and Neck Surgery, Brasília University Hospital, HUB, SGAN 605, Avenida L2 Norte, 70830-200 Brasília, DF, Brazil
- Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, 70910-900 Brasília, DF, Brazil
| | - Alessandra Ramos Venosa
- Department of Otorhinolaryngology and Head and Neck Surgery, Brasília University Hospital, HUB, SGAN 605, Avenida L2 Norte, 70830-200 Brasília, DF, Brazil
- Universidade de Brasília (UnB), Campus Universitário Darcy Ribeiro, 70910-900 Brasília, DF, Brazil
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Park CY, Hong JH, Lee JH, Lee KE, Cho HS, Lim SJ, Kwak JW, Kim KS, Kim HJ. Clinical effect of surgical correction for nasal pathology on the treatment of obstructive sleep apnea syndrome. PLoS One 2014; 9:e98765. [PMID: 24896824 PMCID: PMC4045850 DOI: 10.1371/journal.pone.0098765] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 05/05/2014] [Indexed: 12/05/2022] Open
Abstract
Objectives This study aimed to evaluate the hypothesis that relief of nasal obstruction in subjects with obstructive sleep apnea (OSA) would lead to reduce OSA severity and to discuss the available evidence on the clinical efficacy of nasal surgery as a treatment modality for OSA. Study Design Twenty-five subjects who had reduced patency of nasal cavity and narrowing of retroglossal or retropalatal airways were diagnosed with OSA and underwent nasal surgery, such as septoplasty or turbinoplasty to correct nasal pathologies. The effect of the surgery on nasal patency was quantified by measuring minimal cross-sectional area (MCA) using acoustic rhinometry. The watch-PAT-derived respiratory disturbance index (RDI), apnea and hypopnea index (AHI), lowest oxygen saturation, and valid sleep time were measured before and after nasal surgery. Results The present study shows that the AHI and RDI decreased significantly and the lowest oxygen saturation and valid sleep time rose after nasal surgery in 25 OSA subjects. In addition, a reduction in subjective symptoms was observed in subjects and mean MCA increased after nasal surgery. Fourteen subjects were classified as responders and 11 subjects as non-responders. Responders showed considerable improvement of their subjective symptoms and the AHI and RDI were significantly lower after surgery. We found that the changes between pre- and post-operative AHI and RDI values were minimal in 11 non-responders. However, daytime somnolence and REM sleep time improved after nasal surgery in non-responders. Conclusions Our study provides evidence that the surgical treatment of nasal pathology improves nasal airway patency and reduces OSA severity in 56% subjects. Furthermore, correction of nasal pathology appears to result in improved sleep quality in both responder and non-responders OSA subjects.
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Affiliation(s)
- Chong Yoon Park
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Joon Hyeong Hong
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jae Heon Lee
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Kyu Eun Lee
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hyun Sang Cho
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Su Jin Lim
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jin Wook Kwak
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Kyung Soo Kim
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Hyun Jik Kim
- Department of Otorhinolaryngology and Head & Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
- * E-mail:
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Konservative Therapie beim Schnarchen. SOMNOLOGIE 2014. [DOI: 10.1007/s11818-014-0663-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
BACKGROUND Sleep-disordered breathing (SDB) is a spectrum of airway collapse, ranging from primary snoring to profound obstructive sleep apnea (OSA). Studies have shown an association between impaired nasal breathing and SDB; consequently, treatments of nasal obstruction are often used in an attempt to improve disease severity. The authors performed a review of the literature to determine the impact of nasal obstruction and the effectiveness of nonsurgical and surgical interventions on SDB. METHODS Relevant literature up to 2012 on the association between nasal obstruction and SDB and effectiveness of nonsurgical and surgical treatment of the nose in SDB were reviewed. RESULTS The literature is mostly limited to uncontrolled case series in which patient groups, interventions, disease definitions, and outcome measures are not standardized. Nasal medications, including intranasal steroids and nasal decongestants, have not been shown to improve either snoring or OSA. Nasal dilators have no impact on OSA but may improve snoring. Surgery for nasal obstruction does not improve objective indicators of SDB but can improve subjective elements of disease, such as snoring, sleepiness, and quality of life. Nasal surgery can facilitate continuous positive airway pressure use in cases where nasal obstruction is the factor limiting compliance. CONCLUSION Nasal obstruction plays a modulating, but not causative, role in SDB. Nasal interventions may improve subjective aspects of snoring and OSA but do not improve objective indicators of disease. Standardization of methods and higher evidence level studies will further clarify the benefit of nasal interventions in the treatment of SDB.
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Affiliation(s)
- Eric K Meen
- Department of Otolaryngology-Head and Neck Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
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Jafari B, Roux F. Non-positive airway pressure therapy for obstructive sleep apnea. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s13665-012-0016-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Amaro ACS, Duarte FHG, Jallad RS, Bronstein MD, Redline S, Lorenzi-Filho G. The use of nasal dilator strips as a placebo for trials evaluating continuous positive airway pressure. Clinics (Sao Paulo) 2012; 67:469-74. [PMID: 22666791 PMCID: PMC3351249 DOI: 10.6061/clinics/2012(05)11] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 02/27/2012] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVES The aim of the current study was to compare the objective and subjective effects of continuous positive airway pressure to the use of nasal dilator strips in patients with acromegaly and moderate to severe obstructive sleep apnea. METHODS We studied 12 patients with acromegaly and moderate to severe obstructive sleep apnea (male/ females = 8/4, age = 52 ± 8 ys, body mass index = 33.5 ± 4.6 Kg/m(2), apnea-hypopnea index = 38 ± 14 events/h) who had been included in a randomized, crossover study to receive three months of treatment with continuous positive airway pressure and nasal dilator strips. All patients were evaluated at study entry and at the end of each treatment by polysomnography, and Epworth Sleepiness Scale, Pittsburgh Sleep Quality Index and treatment satisfaction questionnaires. ClinicalTrials.gov: NCT01265121 RESULTS The apnea-hypopnea index values decreased significantly with continuous positive airway pressure treatment but did not change with the use of nasal dilator strips. All of the subjective symptoms improved with both treatments, but these improvements were significantly greater with continuous positive airway pressure than with the nasal dilator strips. CONCLUSION The use of nasal dilator strips had a much smaller effect on the severity of obstructive sleep apnea in patients with acromegaly and moderate to severe obstructive sleep apnea in comparison to the use of continuous positive airway pressure. Moreover, the improvement in several subjective parameters without any significant objective improvement in obstructive sleep apnea resulting from the use of nasal dilator strips is compatible with a placebo effect.
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Raudenbush B. Stenting the nasal airway for maximizing inspiratory airflow: internal Max-Air Nose Cones versus external Breathe Right strip. Am J Rhinol Allergy 2011; 25:249-51. [PMID: 21819762 DOI: 10.2500/ajra.2011.25.3621] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Several nasal dilator devices designed to stent the anterior nasal airway to increase peak nasal inspiratory flow (PNIF) currently exist; however, comparisons of such devices are limited. This study was designed to compare the efficacy of two different nasal dilator devices, an internal device (Max-Air Nose Cones; Sanostec Corp., Beverly Farms, MA) and an external device (Breathe Right nasal strip; GlaxoSmithKline, Brentford, Middlesex, U.K.) on stenting of the anterior nasal airway to maximize PNIF. METHODS Repeated measurements of PNIF were obtained in 30 individuals noting complaints of sleep-disordered breathing due to nasal breathing discomfort and nasal airway obstruction, both with and without the two different nasal dilator devices. RESULTS A one-within analysis of variance (ANOVA) was performed among the three conditions (control, Max-Air Nose Cones, and Breathe Right nasal strip), and a statistically significant effect was found (F[2,58] = 298.13; p< 0.00001). Tukey post hoc contrasts revealed that the control condition PNIF (66.07 L/min) was significantly lower than both the Max-Air Nose Cones (138.73 L/min) and the Breathe Right nasal strip (102.17 L/min) conditions. The Max-Air Nose Cone increased inspiratory airflow by 73 L/min, or a 110% improvement over baseline. In addition, the Max-Air Nose Cone condition PNIF was significantly higher than both the control condition and the nasal strip condition. CONCLUSION Although both the Max-Air Nose Cones and the Breathe Right nasal strips increased PNIF from baseline, the Max-Air Nose Cones showed significantly greater efficacy at stenting the anterior nasal airway, providing twice the improvement in PNIF over baseline than did the Breathe Right nasal strips.
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Affiliation(s)
- Bryan Raudenbush
- Department of Psychology, Human Psychophysiology Laboratory, Wheeling Jesuit University, Wheeling, WV 26003, USA.
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The role of the nose in snoring and obstructive sleep apnoea: an update. Eur Arch Otorhinolaryngol 2011; 268:1365-73. [PMID: 21340561 PMCID: PMC3149667 DOI: 10.1007/s00405-010-1469-7] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Accepted: 12/10/2010] [Indexed: 12/02/2022]
Abstract
Multilevel anatomic obstruction is often present in snoring and obstructive sleep apnoea (OSA). As the nose is the first anatomical boundary of the upper airway, nasal obstruction may contribute to sleep-disordered breathing (SDB). A number of pathophysiological mechanisms can potentially explain the role of nasal pathology in SDB. These include the Starling resistor model, the unstable oral airway, the nasal ventilatory reflex and the role of nitric oxide (NO). Clinically, a number of case–control studies have shown that nasal obstruction is associated with snoring and mild SDB. However, there is not a linear correlation between the degree of nasal obstruction and the severity of SDB, while nasal obstruction is not the main contributing factor in the majority of patients with moderate to severe OSA. Randomised controlled studies have shown that in patients with allergic rhinitis or non-allergic rhinitis and sleep disturbance, nasal steroids could improve the subjective quality of sleep, and may be useful for patients with mild OSA, however, they are not by themselves an adequate treatment for most OSA patients. Similarly, nasal surgery may improve quality of life and snoring in a subgroup of patients with mild SDB and septal deviation, but it is not an effective treatment for OSA as such. On the other hand, in patients who do not tolerate continuous positive airway pressure (CPAP) well, if upper airway evaluation demonstrates an obstructive nasal passage, nasal airway surgery can improve CPAP compliance and adherence.
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Nikakhlagh S, Tahmasebi M, Badri R, Saki N, Rahim F, Badri S. Craniofacial variables in subjects with and without habitual snoring: A cephalometric comparison. Indian J Otolaryngol Head Neck Surg 2010; 62:304-9. [PMID: 23120730 DOI: 10.1007/s12070-010-0089-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE The aim of this case control study was to evaluate which cephalometric variables related to craniofacial morphology discriminate between snoring and non-snoring or any other respiratory disease subjects. MATERIALS AND METHODS Total 42(21 snoring and 21 non-snoring) cephalometric measurements were determined to study the craniofacial morphology. Non-snoring subjects were matched to snoring subjects by age, sex, and body mass index. Snoring was assessed using a sleep behavior questionnaire administered to the patients. The cephalometric radiographs of the study subjects were traced by a single investigator, and 1 angular measurement and 13 linear measurements of hard and soft tissues were recorded. The paired Student's t test was used to analyze the cephalometric data. RESULTS Vertical position of the hyoid (MP-H) was significantly longer (P<0.05) in snoring subjects (23.44±14.892mm) than non-snoring subjects (12.89±4.540mm). Anterior overbite and anterior over-jet of snoring group ((4.81± 3.265 and 5.83±8.59) were significantly higher (P<0.05) than non-snoring group (0.67±1.441 and 0.54±1.138). No significant differences of the other [11] cephalometric variables were found within groups. CONCLUSION Snoring subjects appear to present craniofacial factors that differ from those of non-snoring subjects, and we suggest obtaining cephalogram for diagnosis and following up of them.
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Affiliation(s)
- Soheila Nikakhlagh
- Department of ENT, Imam Hospital, Ahwaz Jondishapour University of Medical Sciences, Ahwaz, Iran ; Department of Radiology, Golestan Hospital, Ahwaz Jondishapour University of Medical Sciences, Ahwaz, Iran
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Abstract
The current guideline discusses conservative and surgical therapy of obstructive sleep apnea (OSA) in adults from the perspective of the ear, nose and throat specialist. The revised guideline was commissioned by the German Society of Ear-Nose-Throat, Head-Neck Surgery (DG HNO KHC) and compiled by the DG HNO KHC's Working Group on Sleep Medicine. The guideline was based on a formal consensus procedure according to the guidelines set out by the German Association of Scientific Medical Societies (AWMF) in the form of a"S2e guideline". Research of the literature available on the subject up to and including December 2008 forms the basis for the recommendations. Evaluation of the publications found was made according to the recommendations of the Oxford Centre for Evidence-Based Medicine (OCEBM). This yielded a recommendation grade, whereby grade A represents highly evidence-based studies and grade D those with a low evidence base.
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Fiz JA, Morera Prat J, Jané R. Tratamiento del paciente con ronquidos simples. Arch Bronconeumol 2009; 45:508-15. [DOI: 10.1016/j.arbres.2008.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2008] [Revised: 10/30/2008] [Accepted: 11/07/2008] [Indexed: 10/20/2022]
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Valbuza JS, Oliveira MMD, Conti CF, Prado LBF, Carvalho LBCD, Prado GFD. Methods to increase muscle tonus of upper airway to treat snoring: systematic review. ARQUIVOS DE NEURO-PSIQUIATRIA 2009; 66:773-6. [PMID: 18949285 DOI: 10.1590/s0004-282x2008000500037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2008] [Accepted: 08/11/2008] [Indexed: 11/22/2022]
Abstract
BACKGROUND Snoring is the noise caused by vibration during the in-breath; and which structure actually vibrates depends on many factors. OBJECTIVE The treatment of snoring with methods to increase muscle tonus of upper airway has been controversial, and poorly reported, thus a review of evidence is necessary to evaluate the effectiveness of these methods. METHOD A review of randomized or quasi-randomized, double blind trials on snoring treatment that have employed any method to increase muscle tonus of upper airway like phonotherapy or physical therapy among others. OUTCOMES decrease or completely stop of snoring, sleep quality, quality of life, and adverse events. RESULTS Three eligible trials were potentially analyzed, but none of them could provide good scientific evidence favoring the intervention. The objective analyses of one study showed improvement of snoring, although the objective sub-analyses and subjective analyses showed controversial results. The adverse events were not reported. CONCLUSION There is no enough evidence to support the recommendation of methods to increase muscle tonus of upper airways in treatment of snoring. Well designed randomized clinical trials are needed to asses the efficacy of such methods, and a standard and worldwide accepted method for snoring assessment would be useful for future researches.
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Affiliation(s)
- Juliana Spelta Valbuza
- Department of Emergency Medicine and Evidence Based Medicine, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Abstract
PURPOSE OF REVIEW To define the relationship between obstructive sleep apnea (OSA) and nasal obstruction, we have reviewed the literature on epidemiological, physiological, and randomized controlled studies in which the relationship between nasal obstruction and OSA was investigated. RECENT FINDINGS Data from observational studies suggest that nasal obstruction contributes to the pathogenesis of OSA. Recently, studies have mainly focused on the effects of therapeutic interventions on the nose and OSA. Eleven trials with randomized controlled designs were found; external nasal dilators were used in five studies, topically applied steroids in one, nasal decongestants in three, and surgical treatment in two studies. Data from these studies showed only minor improvement in the symptoms and severity of OSA. SUMMARY The current evidence suggests that the nose may not play a significant role in the pathogenesis of OSA. The impact of treating nasal obstruction in patients with OSA on long-term outcome remains to be defined more accurately through randomized controlled trials of medical and surgical therapies with large numbers of patients.
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Rosenberg R, Doghramji P. Optimal treatment of obstructive sleep apnea and excessive sleepiness. Adv Ther 2009; 26:295-312. [PMID: 19337706 DOI: 10.1007/s12325-009-0016-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Collapsibility of the upper airway in obstructive sleep apnea (OSA) causes repeated arousals from sleep, decreased oxygen saturation of the blood, and excessive sleepiness (ES). Patients with OSA are at increased risk of cardiovascular and cerebrovascular disease, and experience occupational and vehicular accidents more frequently than the general population. Furthermore, the life expectancy of patients with untreated OSA is significantly reduced. METHODS A MEDLINE search of articles published between 2003 and 2008 was conducted using the search terms: obstructive sleep apnea [ti/ab] AND treatment; obstructive sleep apnoea [ti/ab] AND treatment; and excessive sleepiness [ti/ab] AND treatment. Searches were limited to articles in English; clinical trials; meta-analyses; practice guidelines; randomized, controlled trials; and reviews. RESULTS Continuous positive airway pressure (CPAP) is the reference-standard treatment for patients with OSA. CPAP addresses the symptoms of OSA and reduces the risk of heart disease and depression associated with this sleep disorder. However, the efficacy of CPAP is contingent on patient adherence, and >or=4 hours of therapy per night are required for patients with OSA to experience significant clinical benefits. However, reports of nonadherence to CPAP therapy range from 29% to 83%. Other therapies are available for patients who refuse or cannot adhere to CPAP treatment, including dental devices and surgery, but these treatments are generally considered to be less efficacious. A significant number of patients continue to experience residual ES despite CPAP treatment. Pharmacologic therapies, eg, modafinil and armodafinil, may be of use in patients with OSA to improve tolerance with CPAP or to address residual ES. CONCLUSION There are a variety of treatments available for patients with OSA. Successful treatment involves encouraging patient compliance with CPAP or oral appliances. Primary-care physicians play a crucial role in recognizing this disorder and ensuring the best possible outcome through support and education.
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Affiliation(s)
- Russell Rosenberg
- Atlanta School of Sleep Medicine and Technology, 1100 Johnson Ferry Road, Suite 580, Atlanta, GA, 30342, USA.
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Culpepper L, Roth T. Recognizing and managing obstructive sleep apnea in primary care. PRIMARY CARE COMPANION TO THE JOURNAL OF CLINICAL PSYCHIATRY 2009; 11:330-8. [PMID: 20098525 PMCID: PMC2805569 DOI: 10.4088/pcc.08m00725] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Accepted: 11/25/2008] [Indexed: 10/20/2022]
Abstract
OBJECTIVE This review aims to impart information regarding recognition of obstructive sleep apnea (OSA) and associated excessive sleepiness (ES) in the primary care setting in order to provide optimal care to patients with this common but serious condition. This review will also discuss the prevalence and treatment of depression in patients with OSA. DATA SOURCES A MEDLINE search of articles published between 1990 and 2008 was conducted using the search terms obstructive sleep apnea AND excessive sleepiness, obstructive sleep apnea AND depression, and obstructive sleep apnea AND primary care. Searches were limited to articles in English concerned with adult patients. STUDY SELECTION In total, 239 articles were identified. Articles concerning other sleep disorders and forms of apnea were excluded. The reference lists of identified articles were searched manually to find additional articles of interest. DATA SYNTHESIS Primary care physicians can aid in the diagnosis of OSA and associated ES by being vigilant for lifestyle and physical risk factors associated with this condition. In addition, primary care physicians should maintain a high level of clinical suspicion when presented with illnesses that are commonly comorbid with OSA, such as psychiatric disorders and depression, in particular. Conversely, assessment of patients with OSA for common comorbidities may also improve a patient's prognosis and quality of life. CONCLUSIONS Primary care physicians play a vital role in recognizing OSA and ES. These clinicians are crucial in supporting their patients during treatment by ensuring that they have clear, concise information regarding available therapies and the correct application and maintenance of prescribed devices.
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Affiliation(s)
- Larry Culpepper
- Department of Family Medicine, Boston Medical Center, Massachusetts, USA.
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CLARENBACH CHRISTIANF, KOHLER MALCOLM, SENN OLIVER, THURNHEER ROBERT, BLOCH KONRADE. Does nasal decongestion improve obstructive sleep apnea? J Sleep Res 2008; 17:444-9. [DOI: 10.1111/j.1365-2869.2008.00667.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Petruson B. The importance of improved nasal breathing: a review of the Nozovent nostril dilator. Acta Otolaryngol 2007; 127:418-23. [PMID: 17453464 DOI: 10.1080/00016480500417106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The Nozovent nostril dilator improves nasal breathing to the same degree as topical decongestants and reduces mouth dryness at night in 51% of nocturnal mouth breathers. It does not help every snorer but reduces the snoring heard by the sleeping partner in about 50%, improves the respiratory disturbance index significantly in 19% and gives less morning and daytime tiredness in 40% of snorers. The medium CPAP pressure can be significantly reduced with the dilator.
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Affiliation(s)
- Björn Petruson
- Department of Otorhinolaryngology, Sahlgren University Hospital, Göteborg, Sweden
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Ikeda K, Oshima T, Suzuki M, Suzuki H, Shimomura A. Functional inferior turbinosurgery (FITS) for the treatment of resistant chronic rhinitis. Acta Otolaryngol 2006; 126:739-45. [PMID: 16803714 DOI: 10.1080/00016480500472853] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
CONCLUSIONS Modified vidian neurectomy combined with inferior turbinoplasty provided an optimal surgical outcome as a treatment for intractable chronic rhinitis as evidenced by a relatively long-term follow-up. OBJECTIVE The study was designed to determine the efficacy of submucosal reduction of the inferior turbinate and resection of the posterior nasal nerve for the treatment of resistant chronic rhinitis. PATIENTS AND METHODS Fifty-six consecutive patients (37 males and 19 females; mean+/-SD age, 26+/-11 years) with resistant allergic rhinitis or nonallergic rhinitis with eosinophilia syndrome despite medical treatment. Symptomatic improvement including nasal obstruction, nasal discharge, sneezing, smell perception, and quality of life and objective evaluation of nasal airway resistance and nasal provocation test before and after surgery were investigated. RESULTS The patients showed a remarkable improvement of > or = 80%, with the exception of two patients who had an approximately 50% reduction of the total symptomatic scores. Four of eight patients with anosmia subjectively improved whereas the other four patients felt unchanged. All patients who underwent rhinomanometry (n=15) and nasal provocation testing (n = 15) both before and after surgery showed a significant improvement. There were no intraoperative complications. Postoperative epistaxis occurred in one patient. One patient complained of a transient hypesthesia of the soft palate and dry eye. Nasal mucosal tears were observed in approximately 30% of the patients who otherwise showed no severe synechia or persistent crusting.
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Affiliation(s)
- Katsuhisa Ikeda
- Department of Otorhinolaryngology, Juntendo University School of Medicine, Tokyo, Japan.
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Randerath W, Bauer M, Blau A, Fietze I, Galetke W, Hein H, Maurer JT, Orth M, Rasche K, Ruhle KH, Sanner B, Stuck BA, Verse T. Stellenwert der Nicht-nCPAP-Verfahren in der Therapie des obstruktiven Schlafapnoe-Syndroms. Relevance of Non-CPAP Treatment Options in the Therapy of the Obstructive Sleep Apnoea Syndrome. SOMNOLOGIE 2006. [DOI: 10.1111/j.1439-054x.2006.00082.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Stellenwert der Nicht-nCPAP-Verfahren in der Therapie des obstruktiven Schlafapnoe-Syndroms. SOMNOLOGIE 2006. [DOI: 10.1007/j.1439-054x.2006.00082.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Virkkula P, Bachour A, Hytönen M, Salmi T, Malmberg H, Hurmerinta K, Maasilta P. Snoring is not relieved by nasal surgery despite improvement in nasal resistance. Chest 2006; 129:81-7. [PMID: 16424416 DOI: 10.1378/chest.129.1.81] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
OBJECTIVES In the present study, we evaluated the effect of nasal surgery on snoring time, snoring intensity, and sleep-disordered breathing. The role of abnormal cephalometry in treatment outcome was assessed. DESIGN A cross-sectional prospective study. SETTING University teaching hospital. PATIENTS Forty consecutive snoring men who were referred to ENT Hospital because of a snoring problem or suspicion of sleep apnea. INTERVENTIONS The patients underwent anterior rhinomanometry and polysomnography (PSG) with recording of snoring before and after operative treatment of nasal obstruction. Cephalometric radiographs were obtained before surgery. RESULTS Nasal resistance decreased significantly in the overall patient group. Snoring time, snoring intensity, nocturnal breathing, and sleep architecture did not change after nasal surgery. Cephalometry did not predict operative outcome in these patients. Snoring intensity was found to be significantly higher during non-rapid eye movement (NREM) sleep than during rapid eye movement sleep. CONCLUSIONS Operative treatment of mainly structural nasal obstruction did not seem to decrease snoring intensity, snoring time, or sleep-disordered breathing in an objective assessment by PSG performed after surgery. The effect of treating inflammatory nasal changes during nocturnal breathing, as well as the role of cephalometry in the prediction of treatment outcome will need further evaluation. Higher snoring intensity related to NREM sleep may add to the sleep disturbance of a bed partner in the evening.
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Affiliation(s)
- Paula Virkkula
- ENT Hospital, Department of Plastic Surgery, Helsinki University Central Hospital, Haartmaninkatu 4.E., PO Box 220, FIN-00029 HUS, Helsinki, Finland.
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Abstract
Simple snoring is a very common problem that presents a number of different challenges. The initial difficulty is in confirming the presence of snoring, next one must exclude any other nocturnal respiratory pathology and finally a decision as to an appropriate treatment must be made. There are many different ways of achieving these objectives, but no one-way has a clear advantage in terms of both accuracy and cost effectiveness. In this review the authors do not intend to give a didactic method for the management of simple snoring but to discuss the pros and cons of various different options in order to help physicians make a choice based on local priorities.
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Affiliation(s)
- Paul Counter
- Department of Otolaryngology, Head and Neck Surgery, Sunderland Royal Hospital, Kayll Road, Sunderland SR4 7TP, UK.
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Verse T, Pirsig W, Maurer JT, Hormann K, Stuck BA. Influence of Elevated versus Flat Upper Body Position on Objective Snoring Intensity. A Case Report. Einfluss der Oberkorperposition auf die objektive Intensitat des Schnarchens. Ein Fallbericht. SOMNOLOGIE 2004. [DOI: 10.1111/j.1439-054x.2004.00031.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
OBJECTIVE The role of the nose and its importance in the development and severity of sleep-disordered breathing (SDB) is still a matter of discussion. In the first part of this study, often-controversial data and theories about the nose are reviewed concerning its influence on the pathophysiology of SDB and to interpret certain clinical findings connected with impaired nasal breathing. In the second part, the effectiveness of some nonsurgical and surgical therapies is evaluated. METHOD A worldwide literature research (Medline) was the basis for this review. RESULTS The study of the literature on nasal resistance and clinical findings about the effects of incomplete or complete nasal blockage, particularly in comparison of healthy persons and persons with SDB, allows the assumption of the existence of two different groups of responders: a larger group where the importance of the nose for SDB is negligible and a smaller group where the influence of the nose on SDB is crucial. The same seems to hold true for the responses to nonsurgical and surgical treatments with only a few surgical results available in the literature. While the success rate of nasal surgery for patients with obstructive sleep apnea, for instance, seems to be less than 20%, the normalization of nasal resistance often leads to a positive impact on the well-being and the sleep quality of these patients. However, because criteria to identify responders are lacking, the prediction of success of any treatment for the individual with SDB is not possible.
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Affiliation(s)
- Thomas Verse
- University ENT Clinic Mannheim, Mannheim, Germany.
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Abstract
It has been 30 years since Cottle suggested that "sleeping patterns are in great measure dependent on good nasal function" [1]. During this time, we have identified the OSAHS and related forms of sleep-disordered breathing such as UARS, and better appreciate the clinical sequelae of recurrent arousals and sleep fragmentation. Yet the exact role that obstructed nasal breathing plays in the pathogenesis of such sleep disorders remains presumptive, and robust clinical studies to corroborate this theory remain elusive; however, patients who may benefit most from correction of nasal obstruction as a sole intervention may be those with the mildest forms of sleep-disordered breathing without other significant predisposing anatomic abnormalities. Clearly, more stringently controlled studies [17,105] are needed, particularly in these types of patients. Until such time, it is reasonable to address issues of nasal obstruction as an adjunct to surgical and nonsurgical treatment in all patients who are diagnosed with a sleep-related breathing disorder.
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Affiliation(s)
- Wynne Chen
- Stanford University Center of Excellence for Sleep Disorders, 401 Quarry Road, Suite 3301, Stanford, CA 94305, USA
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Bradshaw DA. What are the nonsurgical treatment options for obstructive sleep apnea syndrome? Am J Otolaryngol 2001; 22:124-31. [PMID: 11283828 DOI: 10.1053/ajot.2001.22573] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Obstructive sleep apnea (OSA) syndrome is now recognized as a relatively common cause of excessive daytime sleepiness, with resultant psychosocial impairment and motor vehicle accidents, and it likely contributes to premature cardiovascular disease. Treatment is naturally directed at the upper airway; however, it is also important to identify and correct significant risk factors, such as obesity and hypothyroidism, whenever possible. Oral appliances or nasal continuous positive airway pressure may immediately reverse symptoms caused by OSA and can be used either indefinitely or as a bridge to potentially definitive surgery.
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Affiliation(s)
- D A Bradshaw
- Clinical Investigation Department, Naval Medical Center, 34800 Bob Wilson Drive, San Diego, CA 92134-5000, USA
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Djupesland PG, Skatvedt O, Borgersen AK. Dichotomous physiological effects of nocturnal external nasal dilation in heavy snorers: the answer to a rhinologic controversy? AMERICAN JOURNAL OF RHINOLOGY 2001; 15:95-103. [PMID: 11345160 DOI: 10.2500/105065801781543745] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The purpose of this article was to study the impact of external dilation on nasal airway dimensions, sleep architecture, and snoring. Eighteen heavy snorers without severe obstructive sleep apnea syndrome (mean apnea-hypopnea index (AHI) 9.3) reporting nocturnal nasal obstruction were enrolled in a randomized (controlled) cross-over study, evaluating subjective and objective effects of external nasal dilation (Breathe Right, 3M). The active dilator was also worn during a one-week pretrial run-in period. Polysomnography, recording of snoring sounds, and repeated acoustic rhinometry were performed on two consecutive nights, one with the active dilator and one with a placebo strip. The significant subjective improvement reported during the run-in period compared to the preceding period without dilator (p < 0.01), remained only for nasal patency (p < 0.05) when comparing the two nights in the sleep laboratory. The nasal dimensions increased significantly (p < 0.001) with the active dilator compared to placebo, both in the evening and the next morning. In a subgroup (n = 6) of habitual snorers (AHI < 10) with severe morning obstruction (combined minimal cross-sectional area < 0.6 cm2), external dilation significantly improved the mean sleep PaSO2 (92.4 --> 96.7) and the percentage of sleep with a PaSO2 < 95% (49.9% --> 4.9%) (p < 0.05). In this subgroup there was a trend toward reduction in (7.4 --> 5.4) (p = 0.06), whereas the AHI increased significantly in the group of 12 with larger nocturnal nasal dimensions (p < 0.05). Duration and intensity of snoring remained unchanged regardless of the subgrouping. Objective beneficial effects were restricted to nocturnal oxygen saturation and AHI in a subgroup of habitual heavy snorers identified by repeated acoustic rhinometry, in whom external dilation objectively relieved marked nocturnal nasal obstruction. This finding may provide a logical explanation for the conflicting results of medical, surgical, and mechanical expansion of the nasal dimensions on snoring and sleep disturbances. (American
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Affiliation(s)
- P G Djupesland
- Department of Otorhinolaryngology, Ullevaal University Hospital, Oslo, Norway
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O'Kroy JA, James T, Miller JM, Torok D, Campbell K. Effects of an external nasal dilator on the work of breathing during exercise. Med Sci Sports Exerc 2001; 33:454-8. [PMID: 11252074 DOI: 10.1097/00005768-200103000-00019] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE The effect of an external nasal dilator on the work of breathing (WOB) was measured during exercise in 14 untrained college students (age, 23 +/- 2.7 yr). METHODS Two maximal, incremental ergometer tests were performed to exhaustion. Subjects wore a placebo or an active nasal dilator strip, in random order, during each test. An esophageal balloon was placed through each of the subject's mouth into the esophagus for measurement of inspiratory elastic work (INEW), inspiratory resistive work (INRW), and expiratory resistive work (EXRW). Subjects breathed through a Hans Rudolph(R) face mask that covered both the mouth and nose during both tests. Measured variables included oxygen uptake (VO2), ventilation (VE), tidal volume (VT), frequency of breathing (f), INEW, INRW, and EXRW (work expressed in joules). An alpha level was set at P < 0.05. RESULTS No significant differences were found in INEW, INRW, and EXRW between conditions at 70% of VO2max (mean +/- SD; Placebo: INEW, 25.6 +/- 17.8 J.min-1; INRW, 22.4 +/- 15.8 J.min-1; EXRW, 16.7 +/- 12.3 J.min-1; Active: INEW, 24.7 +/- 12.9 J.min-1; INRW, 19.7 +/- 11.9 J.min-1; EXRW, 15.2 +/- 8.6 J.min-1; P > 0.05). No difference was found in INEW, INRW, and EXRW at maximal exercise between conditions (mean +/- SD; Placebo: INEW, 50.2 +/- 29.9 J.min-1; INRW, 67.3 +/- 42.3 J.min-1; EXRW, 102.3 +/- 78.4 J.min-1; Active: INEW, 45.7 +/- 19.6 J.min-1; INRW, 62.6 +/- 36.7 J.min-1; EXRW, 86.3 +/- 50.9 J.min-1; P > 0.05). There were no differences in VO2, VE, VT, or f between conditions. CONCLUSION Wearing an external nasal dilator does not significantly reduce the work of breathing during exercise.
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Affiliation(s)
- J A O'Kroy
- Department of Health Sciences, Florida Atlantic University, Davie, FL 33314, USA.
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Schönhofer B, Franklin KA, Brünig H, Wehde H, Köhler D. Effect of nasal-valve dilation on obstructive sleep apnea. Chest 2000; 118:587-90. [PMID: 10988176 DOI: 10.1378/chest.118.3.587] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
OBJECTIVE Nasal-valve dilation reduces nasal resistance and increases air flow. It is possible that this mechanism prevents hypopharyngeal collapse and sleep apneas. We investigated the effect of a plastic device (Nozovent; Prevancure AB; Västra Frölunda, Sweden)-which dilates the nasal valve-on patients with obstructive sleep apnea (OSA). DESIGN Prospective interventional study. SUBJECTS Twenty-six consecutive patients with OSA were included (22 men; mean +/- SD age, 54.8+/-11.3 years; respiratory disturbance index [RDI], 34.4+/-18.5 events/h; body mass index, 31.6+/-5.7 kg/m(2)). INTERVENTION The nasal dilator was inserted during sleep into the nares and fitted to exert a dilating force on the nasal valves by means of its elasticity. MEASUREMENTS Polysomnographic studies were performed before and after 1 month of treatment. A responder is defined as one with a reduction in RDI to < 50% of the baseline value and RDI of < or =10 events/h during treatment. RESULTS Five patients dropped out. As a result, only 21 patients were analyzed. Four patients responded, and 17 patients were nonresponders. In the whole population, neither the mean values for respiration during sleep nor sleep staging changed significantly with the device. CONCLUSIONS The investigated nasal dilator had no effect on sleep-related breathing disorders in patients with moderate to severe OSA. The reduction in nasal resistance does not prevent hypopharyngeal obstruction.
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Affiliation(s)
- B Schönhofer
- Krankenhaus Kloster Grafschaft, Zentrum für Pneumologie, Beatmungs - und Schlafmedizin, Schmallenberg-Grafschaft, Germany.
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Abstract
Despite limited evidence validating its efficacy, surgery to overcome snoring is commonly undertaken. This article looks at the development of snoring surgery to present day, highlighting its limitations and outlining current methods being used to target the surgery more effectively.
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Affiliation(s)
- T M Jones
- Department of Otolaryngology, University Hospital Aintree, Liverpool
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Sloan RH. Use of external nasal dilator strips in motor neurone disease with upper airways obstruction. Palliat Med 1999; 13:443. [PMID: 10659120 DOI: 10.1191/026921699668480518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gosepath J, Amedee RG, Romantschuck S, Mann WJ. Breathe Right nasal strips and the respiratory disturbance index in sleep related breathing disorders. AMERICAN JOURNAL OF RHINOLOGY 1999; 13:385-9. [PMID: 10582117 DOI: 10.2500/105065899781367456] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This investigation assesses the effects of Breathe Right nasal strips on the respiratory disturbance index (RDI) measured by polysomnography in patients suffering from obstructive sleep apnea and snoring. The positive effect of these strips on nasal ventilation was shown in earlier studies. Twenty-six patients with an RDI higher than 10 in an initial measurement underwent a second preoperative polysomnography with Breathe Right nasal strips in place. Nineteen of these 26 patients showed reduction of RDI during the second night of polysomnography using the nasal strips, indicating that nasal obstruction seems to be a predominant factor in the etiology of snoring and apnea in these individuals. Demographic data, medical history, rhinoscopy, clinical assessment of pharyngeal obstruction (Mueller's maneuver), as well as anterior rhinomanometry and acoustic rhinometry were used to identify typical findings correlating with a positive effect of the Breathe Right nasal strips on the RDI: 1. Hyperplasia or hypertrophy of the lower turbinates, septal deviation, and/or allergic rhinitis. 2. None or only minor pharyngeal obstruction. 3. Age less than 55 years. If a positive effect is seen during polysomnography with the strips in place, patients will most likely profit from an improvement of nasal ventilation. This may help to target more effectively septal or turbinate surgery if applicable. In other cases, if a significant RDI reduction is obtained by the use of the nasal strips, they could also offer a noninvasive modality of treatment, especially since the high degree of co-morbidity in this group of patients can sometimes make a surgical approach less favorable.
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Affiliation(s)
- J Gosepath
- Department of Otolaryngology, University of Mainz School of Medicine, Germany
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Lorino AM, Lofaso F, Dahan E, Coste A, Harf A, Lorino H. Combined effects of a mechanical nasal dilator and a topical decongestant on nasal airflow resistance. Chest 1999; 115:1514-8. [PMID: 10378542 DOI: 10.1378/chest.115.6.1514] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The goal of this study was to compare the isolated and combined effects of two treatments being used to reduce nasal airflow resistance (NR): an internal nasal mechanical dilator (Nozovent; Prevancure; Sté Pouret, Paris, France) and a topical decongestant, fenoxazoline hydrochloride (Aturgyl; Synthelabo; Le Plessis-Robinson, France). The study was performed in 17 healthy subjects. NR was estimated by active posterior rhinometry at a 0.5 L/s flow under four conditions: in the basal state, with the internal nasal mechanical dilator, after treatment with fenoxazoline hydrochloride, and with both fenoxazoline hydrochloride and the mechanical dilator. The mean NR (+/- SD) decreased from 1.65+/-0.54 cm H2O/L/s in the basal state to 1.02+/-0.27 cm H2O/L/s with the mechanical dilator (p < 0.001), 1.03+/-0.47 cm H2O/L/s with fenoxazoline hydrochloride (p < 0.001), and 0.48+/-0.15 cm H2O/L/s with both the mechanical dilator and fenoxazoline hydrochloride (p < 0.001). The decreases in NR observed after using either the mechanical dilator (deltaNR(N)) or fenoxazoline hydrochloride (deltaNR(A)) were not significantly different. The decrease in NR observed with both (deltaNR(N + A)) was not significantly different from the sum deltaNR(N) + deltaNR(A): 1.16+/-0.53 cm H2O/L/s vs 1.25+/-0.63 cm H2O/L/s, respectively (p > 0.05). deltaNR(N + A) strongly correlated with deltaNR(N) + deltaNR(A): deltaNR(N + A) = 0.80 (deltaNR(N) + deltaNR(A)) + 0.15 (r = 0.96; p < 0.0001). However, the slope of the regression line of deltaNR(N + A) vs deltaNR(N) + deltaNR(A) was significantly lower than unity (p < 0.003). These results demonstrate that, although not totally additive, the effects of using the mechanical dilator and fenoxazoline hydrochloride are cumulative. Further studies that include patients with nasal obstruction would allow us to better evaluate the benefit of a therapy combining both treatments.
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Affiliation(s)
- A M Lorino
- INSERM U 492 et Service de Physiologie-Explorations Fonctionnelles, Hôpital Henri Mondor, AP-HP, Créteil, France.
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