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Redefining Outcome Measures

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The Role of Epiglottis in Obstructive Sleep Apnea
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Abstract

Sleep testing is the most important diagnostic tool in respiratory sleep medicine and is unique in measuring an abundance of simultaneously obtained objective measures such as sleep state, airflow, and oxygen saturation. The data collected resulted in the scoring of sleep and associated events. Traditionally, the diagnosis and severity of obstructive sleep apnea (OSA) have been largely quantified by the numeric calculation of the number of apneas and hypopneas per hour of sleep (AHI). However, the AHI is a surrogate marker for disease severity and is not the only metric. In this chapter, we elaborate on various other objective treatment outcomes to consider. We reflect on various factors to take into account when interpreting sleep studies. We discuss various clinical endpoints since one does not only aim to improve respiratory disturbances during sleep. We focus on how to report on the treatment of patients with OSA. For example, how does one define success? How does one take compliance into consideration since the effectiveness of conservative treatment regarding the reduction of AHI depends both on its impact on airway obstruction and compliance. We consider the impact of sleep position and how to take this factor into consideration.

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References

  1. Cielo CM, Tapia IE. Diving deeper: rethinking AHI as the primary measure of OSA severity. J Clin Sleep Med. 2019;15(8):1075–6.

    Article  PubMed  PubMed Central  Google Scholar 

  2. Berry RB, Brooks R, Gamaldo CE, Harding SM, Marcus C, Vaughn BV. The AASM manual for the scoring of sleep and associated events. Rules, terminology and technical specifications. Darien: American Academy of Sleep Medicine; 2012. p. 176.

    Google Scholar 

  3. American Academy of Sleep Medicine. The report of an American Academy of sleep Medicine task force: sleep-related breathing disorders in adults; recommendations for syndrome definition and measurement techniques in clinical research. Sleep. 1999;22:667–89.

    Article  Google Scholar 

  4. NVALT N. Richtlijn Obstructief Slaapapneu (OSA) bij Volwassenen; 2018.

    Google Scholar 

  5. Muraja-Murro A, Kulkas A, Hiltunen M, Kupari S, Hukkanen T, Tiihonen P, et al. The severity of individual obstruction events is related to increased mortality rate in severe obstructive sleep apnea. J Sleep Res. 2013;22(6):663–9.

    Article  PubMed  Google Scholar 

  6. Azarbarzin A, Sands SA, Taranto-Montemurro L, Redline S, Wellman A. Hypoxic burden captures sleep apnoea-specific nocturnal hypoxaemia. Eur Heart J. 2019;40(35):2989–90.

    Article  PubMed  PubMed Central  Google Scholar 

  7. Leppänen T, Kulkas A, Töyräs J. The hypoxic burden: also known as the desaturation severity parameter. Eur Heart J. 2019;40:2991.

    Article  PubMed  Google Scholar 

  8. Ravesloot MJ, De Raaff CA, Van De Beek MJ, Benoist LB, Beyers J, Corso RM, et al. Perioperative care of patients with obstructive sleep apnea undergoing upper airway surgery: a review and consensus recommendations. JAMA Otolaryngol Head Neck Surg. 2019;145(8):751–60.

    Article  PubMed  Google Scholar 

  9. Kezirian EJ, Weaver EM, Criswell MA, De Vries N, Woodson BT, Piccirillo JF. Reporting results of obstructive sleep apnea syndrome surgery trials. Otolaryngol Head Neck Surg. 2011;144(4):496–9.

    Article  PubMed  PubMed Central  Google Scholar 

  10. Sateia MJ. International classification of sleep disorders. Chest. 2014;146(5):1387–94.

    Article  PubMed  Google Scholar 

  11. Duce B, Milosavljevic J, Hukins C. The 2012 AASM respiratory event criteria increase the incidence of hypopneas in an adult sleep center population. J Clin Sleep Med. 2015;11(12):1425–31.

    Article  PubMed  PubMed Central  Google Scholar 

  12. Iber C. The AASM manual for the scoring of sleep and associated events: rules, terminology, and technical specification. 2007.

    Google Scholar 

  13. Danker-Hopfe H, Kunz D, Gruber G, Klösch G, Lorenzo JL, Himanen S-L, et al. Interrater reliability between scorers from eight European sleep laboratories in subjects with different sleep disorders. J Sleep Res. 2004;13(1):63–9.

    Article  PubMed  Google Scholar 

  14. Magalang UJ, Chen N-H, Cistulli PA, Fedson AC, Gíslason T, Hillman D, et al. Agreement in the scoring of respiratory events and sleep among international sleep centers. Sleep. 2013;36(4):591–6.

    Article  PubMed  PubMed Central  Google Scholar 

  15. Malhotra A, Younes M, Kuna ST, Benca R, Kushida CA, Walsh J, et al. Performance of an automated polysomnography scoring system versus computer-assisted manual scoring. Sleep. 2013;36(4):573–82.

    Article  PubMed  PubMed Central  Google Scholar 

  16. Kapur VK, Auckley DH, Chowdhuri S, Kuhlmann DC, Mehra R, Ramar K, et al. Clinical practice guideline for diagnostic testing for adult obstructive sleep apnea: an American Academy of Sleep Medicine clinical practice guideline. J Clin Sleep Med. 2017;13(3):479–504.

    Article  PubMed  PubMed Central  Google Scholar 

  17. Yalamanchali S, Farajian V, Hamilton C, Pott TR, Samuelson CG, Friedman M. Diagnosis of obstructive sleep apnea by peripheral arterial tonometry: meta-analysis. JAMA Otolaryngol Head Neck Surg. 2013;139(12):1343–50.

    Article  PubMed  Google Scholar 

  18. Ravesloot M, Vonk P, Maurer J, Oksenberg A, de Vries N. Standardized framework to report on the role of sleeping position in sleep apnea patients. Sleep Breath. 2021;25:1–12.

    Article  Google Scholar 

  19. Tkacova R, McNicholas WT, Javorsky M, Fietze I, Sliwinski P, Parati G, et al. Nocturnal intermittent hypoxia predicts prevalent hypertension in the European Sleep Apnoea Database cohort study. Eur Respir J. 2014;44(4):931–41.

    Article  Google Scholar 

  20. Mueller CE, Li H, Begasse SM, Sommer JU, Stuck BA, Birk R. Sleep position, patient comfort, and technical performance with two established procedures for home sleep testing. Sleep Breath. 2021;26:1–9.

    Google Scholar 

  21. Vonk P, de Vries N, Ravesloot M. Polysomnography and sleep position, a Heisenberg phenomenon? HNO. 2019;67(9):679–84.

    Article  CAS  PubMed  Google Scholar 

  22. Roeder M, Bradicich M, Schwarz EI, Thiel S, Gaisl T, Held U, et al. Night-to-night variability of respiratory events in obstructive sleep apnoea: a systematic review and meta-analysis. Thorax. 2020;75(12):1095–102.

    Article  Google Scholar 

  23. Weaver EM, Woodson BT, Steward DL. Polysomnography indexes are discordant with quality of life, symptoms, and reaction times in sleep apnea patients. Otolaryngol Head Neck Surg. 2005;132(2):255–62.

    Article  Google Scholar 

  24. Kezirian EJ, Malhotra A, Goldberg AN, White DP. Changes in obstructive sleep apnea severity, biomarkers, and quality of life after multilevel surgery. Laryngoscope. 2010;120(7):1481–8.

    Article  PubMed  PubMed Central  Google Scholar 

  25. Weaver TE. Outcome measurement in sleep medicine practice and research. Part 1: assessment of symptoms, subjective and objective daytime sleepiness, health-related quality of life and functional status. Sleep Med Rev. 2001;5(2):103–28.

    Article  PubMed  Google Scholar 

  26. Weaver TE. Outcome measurement in sleep medicine practice and research. Part 2: assessment of neurobehavioral performance and mood. Sleep Med Rev. 2001;5(3):223–36.

    Article  PubMed  Google Scholar 

  27. Pang KP, Baptista PM, Olszewska E, Braverman I, Carrasco-Llatas M, Kishore S, Chandra S, Yang HC, Chan YH, Pang KA, Pang EB, Rotenberg B. SLEEP-GOAL: a multicenter success criteria outcome study on 302 obstructive sleep apnoea (OSA) patients. Med J Malaysia. 2020;75(2):117.

    CAS  PubMed  Google Scholar 

  28. Johns MW. Reliability and factor analysis of the Epworth Sleepiness Scale. Sleep. 1992;15(4):376–81.

    Article  CAS  PubMed  Google Scholar 

  29. Benbadis SR, Mascha E, Perry MC, Wolgamuth BR, Smolley LA, Dinner DS. Association between the Epworth sleepiness scale and the multiple sleep latency test in a clinical population. Ann Intern Med. 1999;130(4_Part_1):289–92.

    Article  CAS  PubMed  Google Scholar 

  30. Tsang S, Royse CF, Terkawi AS. Guidelines for developing, translating, and validating a questionnaire in perioperative and pain medicine. Saudi J Anaesth. 2017;11(Suppl 1):S80.

    Article  PubMed  PubMed Central  Google Scholar 

  31. Fujita S, Conway W, Zorick F, Roth T. Surgical correction of anatomic azbnormalities in obstructive sleep apnea syndrome: uvulopalatopharyngoplasty. Otolaryngol Head Neck Surg. 1981;89(6):923–34.

    Article  CAS  PubMed  Google Scholar 

  32. He J, Kryger MH, Zorick FJ, Conway W, Roth T. Mortality and apnea index in obstructive sleep apnea. Experience in 385 male patients. Chest. 1988;94(1):9–14.

    Article  CAS  PubMed  Google Scholar 

  33. Sher AE, Schechtman KB, Piccirillo JF. The efficacy of surgical modifications of the upper airway in adults with obstructive sleep apnea syndrome. Sleep. 1996;19(2):156–77.

    Article  CAS  PubMed  Google Scholar 

  34. Elshaug AG, Moss JR, Southcott AM, Hiller JE. Redefining success in airway surgery for obstructive sleep apnea: a meta analysis and synthesis of the evidence. Sleep. 2007;30(4):461–7.

    Article  PubMed  Google Scholar 

  35. Ravesloot MJ, de Vries N. Reliable calculation of the efficacy of non-surgical and surgical treatment of obstructive sleep apnea revisited. Sleep. 2011;34(1):105–10.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  36. Weaver TE, Grunstein RR. Adherence to continuous positive airway pressure therapy: the challenge to effective treatment. Proc Am Thorac Soc. 2008;5(2):173–8.

    Article  PubMed  PubMed Central  Google Scholar 

  37. Kribbs NB, Pack AI, Kline LR, Smith PL, Schwartz AR, Schubert NM, et al. Objective measurement of patterns of nasal CPAP use by patients with obstructive sleep apnea. Am Rev Respir Dis. 1993;147(4):887–95.

    Article  CAS  PubMed  Google Scholar 

  38. Weaver TE, Maislin G, Dinges DF, Bloxham T, George CF, Greenberg H, et al. Relationship between hours of CPAP use and achieving normal levels of sleepiness and daily functioning. Sleep. 2007;30(6):711–9.

    Article  PubMed  PubMed Central  Google Scholar 

  39. Wozniak DR, Lasserson TJ, Smith I. Educational, supportive and behavioural interventions to improve usage of continuous positive airway pressure machines in adults with obstructive sleep apnoea. Cochrane Database Syst Rev. 2014;1:CD007736.

    Google Scholar 

  40. Vanderveken OM, Dieltjens M, Wouters K, De Backer WA, Van de Heyning PH, Braem MJ. Objective measurement of compliance during oral appliance therapy for sleep-disordered breathing. Thorax. 2013;68(1):91–6.

    Article  PubMed  Google Scholar 

  41. Ravesloot MJ, de Vries N, Stuck BA. Treatment adherence should be taken into account when reporting treatment outcomes in obstructive sleep apnea. Laryngoscope. 2014;124(1):344–5.

    Article  Google Scholar 

  42. Boyd SB, Walters AS. Effectiveness of treatment apnea-hypopnea index: a mathematical estimate of the true apnea-hypopnea index in the home setting. J Oral Maxillofac Surg. 2013;71(2):351–7.

    Article  PubMed  Google Scholar 

  43. Ryan CF, Lowe AA, Li D, Fleetham JA. Magnetic resonance imaging of the upper airway in obstructive sleep apnea before and after chronic nasal continuous positive airway pressure therapy. Am Rev Respir Dis. 1991;144(4):939–44.

    Article  CAS  PubMed  Google Scholar 

  44. Holty J-EC, Guilleminault C. Maxillomandibular advancement for the treatment of obstructive sleep apnea: a systematic review and meta-analysis. Sleep Med Rev. 2010;14(5):287–97.

    Article  PubMed  Google Scholar 

  45. Stuck BA, Leitzbach S, Maurer JT. Effects of continuous positive airway pressure on apnea–hypopnea index in obstructive sleep apnea based on long-term compliance. Sleep Breath. 2012;16(2):467–71.

    Article  PubMed  Google Scholar 

  46. Ribeiro de Almeida F. Complexity and efficacy of mandibular advancement splints: understanding their mode of action. J Clin Sleep Med. 2011;7(5):447–8.

    Article  PubMed Central  Google Scholar 

  47. Bianchi MT, Alameddine Y, Mojica J. Apnea burden: efficacy versus effectiveness in patients using positive airway pressure. Sleep Med. 2014;15(12):1579–81.

    Article  PubMed  Google Scholar 

  48. Vonk P, Rotteveel P, Ravesloot M, den Haan C, De Vries N. The influence of position-dependency on surgical success in sleep apnea surgery—a systematic review. Sleep Breath. 2020;24(2):433–42.

    Article  CAS  PubMed  Google Scholar 

  49. Katsantonis GP, Miyazaki S, Walsh JK. Effects of uvulopalatopharyngoplasty on sleep architecture and patterns of obstructed breathing. Laryngoscope. 1990;100(10):1068–72.

    Article  CAS  PubMed  Google Scholar 

  50. Lee CH, Kim S-W, Han K, Shin J-M, Hong S-L, Lee J-E, et al. Effect of uvulopalatopharyngoplasty on positional dependency in obstructive sleep apnea. Arch Otolaryngol Head Neck Surg. 2011;137(7):675–9.

    Article  PubMed  Google Scholar 

  51. Van Maanen J, Ravesloot M, Witte B, Grijseels M, De Vries N. Exploration of the relationship between sleep position and isolated tongue base or multilevel surgery in obstructive sleep apnea. Eur Arch Otorhinolaryngol. 2012;269(9):2129–36.

    Article  PubMed  PubMed Central  Google Scholar 

  52. Lee YC, Eun YG, Shin SY, Kim SW. Change in position dependency in non-responders after multilevel surgery for obstructive sleep apnea: analysis of polysomnographic parameters. Eur Arch Otorhinolaryngol. 2014;271(5):1081–5.

    Article  PubMed  Google Scholar 

  53. Li H-Y, Cheng W-N, Chuang L-P, Fang T-J, Hsin L-J, Kang C-J, et al. Positional dependency and surgical success of relocation pharyngoplasty among patients with severe obstructive sleep apnea. Otolaryngol Head Neck Surg. 2013;149(3):506–12.

    Article  PubMed  Google Scholar 

  54. van Maanen J, Witte B, de Vries N. Theoretical approach towards increasing effectiveness of palatal surgery in obstructive sleep apnea: role for concomitant positional therapy? Sleep Breath. 2014;18(2):341–9.

    PubMed  Google Scholar 

  55. Kastoer C, Benoist L, Dieltjens M, Torensma B, de Vries L, Vonk P, et al. Comparison of upper airway collapse patterns and its clinical significance: drug-induced sleep endoscopy in patients without obstructive sleep apnea, positional and non-positional obstructive sleep apnea. Sleep Breath. 2018;22(4):939–48.

    Article  CAS  PubMed  Google Scholar 

  56. Benoist LB, de Ruiter MH, de Lange J, de Vries N. Residual POSA after maxillomandibular advancement in patients with severe OSA. In: Positional therapy in obstructive sleep apnea. Cham: Springer; 2015. p. 321–9.

    Chapter  Google Scholar 

  57. Vonk PE, Rotteveel PJ, Ravesloot MJ, Ho J-PT, de Lange J, de Vries N. The influence of position dependency on surgical success in patients with obstructive sleep apnea undergoing maxillomandibular advancement. J Clin Sleep Med. 2020;16(1):73–80.

    Article  PubMed  PubMed Central  Google Scholar 

  58. Benoist L, Verhagen M, Torensma B, van Maanen J, De Vries N. Positional therapy in patients with residual positional obstructive sleep apnea after upper airway surgery. Sleep Breath. 2017;21(2):279–88.

    Article  CAS  PubMed  Google Scholar 

  59. MacKay S, Carney AS, Catcheside PG, Chai-Coetzer CL, Chia M, Cistulli PA, et al. Effect of multilevel upper airway surgery vs medical management on the apnea-hypopnea index and patient-reported daytime sleepiness among patients with moderate or severe obstructive sleep apnea: the SAMS randomized clinical trial. JAMA. 2020;324(12):1168–79.

    Article  PubMed  PubMed Central  Google Scholar 

  60. Steffen A, Hartmann JT, König IR, Ravesloot MJ, Hofauer B, Heiser C. Evaluation of body position in upper airway stimulation for obstructive sleep apnea—is continuous voltage sufficient enough? Sleep Breath. 2018;22(4):1207–12.

    Article  Google Scholar 

  61. Lee CH, Shin H-W, Han DH, Mo J-H, Yoon I-Y, Chung S, et al. The implication of sleep position in the evaluation of surgical outcomes in obstructive sleep apnea. Otolaryngol Head Neck Surg. 2009;140(4):531–5.

    Article  PubMed  Google Scholar 

  62. Beyers J, Vanderveken OM, Kastoer C, Boudewyns A, De Volder I, Van Gastel A, Verbraecken JA, De Backer WA, Braem MJ, Van De Heyning PH, Dieltjens M. Treatment of sleep-disordered breathing with positional therapy: long-term results. Sleep and Breathing. 2019;23:1141–9.

    Google Scholar 

  63. Sutherland K, Phillips CL, Cistulli PA. Efficacy versus effectiveness in the treatment of obstructive sleep apnea: CPAP and oral appliances. J Dent Sleep Med. 2015;2(4):175–81.

    Article  Google Scholar 

  64. Dieltjens M, Braem MJ, Van de Heyning PH, Wouters K, Vanderveken OM. Prevalence and clinical significance of supine-dependent obstructive sleep apnea in patients using oral appliance therapy. J Clin Sleep Med. 2014;10(9):959–64.

    Article  PubMed  PubMed Central  Google Scholar 

  65. Marklund M, Persson M, Franklin KA. Treatment success with a mandibular advancement device is related to supine-dependent sleep apnea. Chest. 1998;114(6):1630–5.

    Article  CAS  PubMed  Google Scholar 

  66. Lee CH, Jung HJ, Lee WH, Rhee CS, Yoon IY, Yun PY, et al. The effect of positional dependency on outcomes of treatment with a mandibular advancement device. Arch Otolaryngol Head Neck Surg. 2012;138(5):479–83.

    Article  PubMed  Google Scholar 

  67. Chung JW, Enciso R, Levendowski DJ, Morgan TD, Westbrook PR, Clark GT. Treatment outcomes of mandibular advancement devices in positional and nonpositional OSA patients. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010;109(5):724–31.

    Article  PubMed  PubMed Central  Google Scholar 

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Correspondence to Madeline J. L. Ravesloot .

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Ravesloot, M.J.L. (2023). Redefining Outcome Measures. In: Delakorda, M., de Vries, N. (eds) The Role of Epiglottis in Obstructive Sleep Apnea. Springer, Cham. https://doi.org/10.1007/978-3-031-34992-8_4

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