Abstract
Rapid eye movement (REM) sleep was discovered nearly 60 years ago. This stage of sleep accounts for approximately a quarter of total sleep time in healthy adults, and it is mostly concentrated in the second half of the sleep period. The majority of research on REM sleep has focused on neurocognition. More recently, however, there has been a growing interest in understanding whether obstructive sleep apnea (OSA) during the two main stages of sleep (REM and non-REM sleep) leads to different cardiometabolic and neurocognitive risk. In this review, we discuss the growing evidence indicating that OSA during REM sleep is a prevalent disorder that is independently associated with adverse cardiovascular, metabolic, and neurocognitive outcomes. From a therapeutic standpoint, we discuss limitations of continuous positive airway pressure (CPAP) therapy given that 3 or 4 h of CPAP use from the beginning of the sleep period would leave 75% or 60% of obstructive events during REM sleep untreated. We also review potential pharmacologic approaches to treating OSA during REM sleep. Undoubtedly, further research is needed to establish best treatment strategies in order to effectively treat REM OSA. Moreover, it is critical to understand whether treatment of REM OSA will translate into better patient outcomes.
Similar content being viewed by others
Abbreviations
- AHI:
-
Apnea-hypopnea index
- AHI4%:
-
Apnea-hypopnea index using 4% oxygen desaturation criteria
- AHI3%a:
-
Apnea-hypopnea index using 3% oxygen desaturation criteria and/or arousal
- BMI:
-
Body mass index
- CPAP:
-
Continuous positive airway pressure
- DREADD:
-
Designer receptor exclusively activated by designer drugs
- EDS:
-
Excessive daytime sleepiness
- EPAP:
-
Expiratory positive airway pressure
- GIRK:
-
G protein coupled inward rectifying potassium channels
- MSLT:
-
Multiple sleep latency test
- Non-REM:
-
Non-rapid eye movement sleep
- PSG:
-
Polysomnography
- REM:
-
Rapid eye movement
References
Grace KP, Hughes SW, Horner RL (2013) Identification of the mechanism mediating genioglossus muscle suppression in REM sleep. Am J Respir Crit Care Med 187:311–319
Douglas NJ, White DP, Weil JV, Pickett CK, Zwillich CW (1982) Hypercapnic ventilatory response in sleeping adults. Am Rev Respir Dis 126:758–762
Douglas NJ, White DP, Weil JV, Pickett CK, Martin RJ, Hudgel DW et al (1982) Hypoxic ventilatory response decreases during sleep in normal men. Am Rev Respir Dis 125:286–289
Findley LJ, Wilhoit SC, Suratt PM (1985) Apnea duration and hypoxemia during REM sleep in patients with obstructive sleep apnea. Chest 87:432–436
Krieger J, Sforza E, Boudewijns A, Zamagni M, Petiau C (1997) Respiratory effort during obstructive sleep apnea: role of age and sleep state. Chest 112:875–884
Peppard PE, Ward NR, Morrell MJ (2009) The impact of obesity on oxygen desaturation during sleep-disordered breathing. Am J Respir Crit Care Med 180:788–793
Brooks D, Horner RL, Kozar LF, Render-Teixeira CL, Phillipson EA (1997) Obstructive sleep apnea as a cause of systemic hypertension. Evidence from a canine model. J Clin Invest 99:106–109
Duce B, Kulkas A, Langton C, Toyras J, Hukins C (2017) The prevalence of REM-related obstructive sleep apnoea is reduced by the AASM 2012 hypopnoea criteria. Sleep Breath
Mokhlesi B, Punjabi NM (2012) “REM-related” obstructive sleep apnea: an epiphenomenon or a clinically important entity? Sleep 35:5–7
O'Connor C, Thornley KS, Hanly PJ (2000) Gender differences in the polysomnographic features of obstructive sleep apnea. Am J Respir Crit Care Med 161:1465–1472
Koo BB, Patel SR, Strohl K, Hoffstein V (2008) Rapid eye movement-related sleep-disordered breathing: influence of age and gender. Chest 134:1156–1161
Resta O, Carpanano GE, Lacedonia D, Di Gioia G, Giliberti T, Stefano A et al (2005) Gender difference in sleep profile of severely obese patients with obstructive sleep apnea (OSA). Respir Med 99:91–96
Haba-Rubio J, Janssens JP, Rochat T, Sforza E (2005) Rapid eye movement-related disordered breathing: clinical and polysomnographic features. Chest 128:3350–3357
Koo BB, Dostal J, Ioachimescu O, Budur K (2008) The effects of gender and age on REM-related sleep-disordered breathing. Sleep Breath 12:259–264
Conwell W, Patel B, Doeing D, Pamidi S, Knutson KL, Ghods F, Mokhlesi B (2012) Prevalence, clinical features, and CPAP adherence in REM-related sleep-disordered breathing: a cross-sectional analysis of a large clinical population. Sleep Breath 16:519–526
Mokhlesi B, Finn LA, Hagen EW, Young T, Hla KM, Van Cauter E et al (2014) Obstructive sleep apnea during REM sleep and hypertension. results of the Wisconsin Sleep Cohort. Am J Respir Crit Care Med 190:1158–1167
Aurora RN, Crainiceanu C, Gottlieb DJ, Kim JS, Punjabi NM (2018) Obstructive sleep apnea during REM sleep and cardiovascular disease. Am J Respir Crit Care Med 197:653–660
Schütz SG, Jean-Louis G, Rapoport DM, Ayappa I, Varga AW (2016) REM-related sleep apnea and cardiovascular risk. SLEEP 39:A164–A165
Khan A, Harrison SL, Kezirian EJ, Ancoli-Israel S, O’Hearn D, Orwoll E et al (2013) Obstructive sleep apnea during rapid eye movement sleep, daytime sleepiness, and quality of life in older men in Osteoporotic Fractures in Men (MrOS) Sleep Study. J Clin Sleep Med 9:191–198
Acosta-Castro P, Hirotsu C, Marti-Soler H, Marques-Vidal P, Tobback N, Andries D, Waeber G, Preisig M, Vollenweider P, Haba-Rubio J, Heinzer R (2018) REM-associated sleep apnoea: prevalence and clinical significance in the HypnoLaus cohort. In: Eur Respir J, vol 52, p 1702484
Dean DA, Wang R, Jacobs DR, Duprez D, Punjabi NM, Zee PC et al (2015) A systematic assessment of the association of polysomnographic indices with blood pressure: the Multi-Ethnic Study of Atherosclerosis (MESA). Sleep 38:587–596
Hung J, Whitford EG, Parsons RW, Hillman DR (1990) Association of sleep apnoea with myocardial infarction in men. Lancet 336:261–264
Marin JM, Carrizo SJ, Vicente E, Agusti AG (2005) Long-term cardiovascular outcomes in men with obstructive sleep apnoea-hypopnoea with or without treatment with continuous positive airway pressure: an observational study. Lancet 365:1046–1053
Arzt M, Young T, Finn L, Skatrud JB, Bradley TD (2005) Association of sleep-disordered breathing and the occurrence of stroke. Am J Respir Crit Care Med 172:1447–1451
Redline S, Yenokyan G, Gottlieb DJ, Shahar E, O’Connor GT, Resnick HE, Diener-West M, Sanders MH, Wolf PA, Geraghty EM, Ali T, Lebowitz M, Punjabi NM (2010) Obstructive sleep apnea-hypopnea and incident stroke: the sleep heart health study. Am J Respir Crit Care Med 182:269–277
Peppard PE, Young T, Palta M, Skatrud J (2000) Prospective study of the association between sleep-disordered breathing and hypertension. N Engl J Med 342:1378–1384
Cano-Pumarega I, Duran-Cantolla J, Aizpuru F, Miranda-Serrano E, Rubio R, Martinez-Null C et al (2011) Obstructive sleep apnea and systemic hypertension: longitudinal study in the general population: the Vitoria Sleep Cohort. Am J Respir Crit Care Med 184:1299–1304
Cano-Pumarega I, Barbe F, Esteban A, Martinez-Alonso M, Egea C, Duran-Cantolla J et al (2017) Sleep apnea and hypertension: are there sex differences? The Vitoria Sleep Cohort. Chest 152:742–750
O'Connor GT, Caffo B, Newman AB, Quan SF, Rapoport DM, Redline S, Resnick HE, Samet J, Shahar E (2009) Prospective study of sleep-disordered breathing and hypertension: the Sleep Heart Health Study. Am J Respir Crit Care Med 179:1159–1164
Somers VK, Dyken ME, Clary MP, Abboud FM (1995) Sympathetic neural mechanisms in obstructive sleep apnea. J Clin Invest 96:1897–1904
Somers VK, Dyken ME, Mark AL, Abboud FM (1993) Sympathetic-nerve activity during sleep in normal subjects. N Engl J Med 328:303–307
Appleton SL, Vakulin A, Martin SA, Lang CJ, Wittert GA, Taylor AW, McEvoy RD, Antic NA, Catcheside PG, Adams RJ (2016) Hypertension is associated with undiagnosed OSA during rapid eye movement sleep. Chest 150:495–505
Mokhlesi B, Hagen EW, Finn LA, Hla KM, Carter JR, Peppard PE (2015) Obstructive sleep apnoea during REM sleep and incident non-dipping of nocturnal blood pressure: a longitudinal analysis of the Wisconsin Sleep Cohort. Thorax 70:1062–1069
Sarigianni M, Dimitrakopoulos K, Tsapas A (2014) Non-dipping status in arterial hypertension: an overview. Curr Vasc Pharmacol 12:527–536
Cuspidi C, Sala C, Tadic M, Rescaldani M, Grassi G, Mancia G (2015) Untreated masked hypertension and subclinical cardiac damage: a systematic review and meta-analysis. Am J Hypertens 28:806–813
Jouvet M, Michel F, Mounier D (1960) Comparative electroencephalographic analysis of physiological sleep in the cat and in man. Rev Neurol (Paris) 103:189–205
Cajochen C, Pischke J, Aeschbach D, Borbely AA (1994) Heart rate dynamics during human sleep. Physiol Behav 55:769–774
Zinchuk AV, Jeon S, Koo BB, Yan X, Bravata DM, Qin L, Selim BJ, Strohl KP, Redeker NS, Concato J, Yaggi HK (2018) Polysomnographic phenotypes and their cardiovascular implications in obstructive sleep apnoea. Thorax 73:472–480
Barbe F, Duran-Cantolla J, Sanchez-de-la-Torre M, Martinez-Alonso M, Carmona C, Barcelo A et al (2012) Effect of continuous positive airway pressure on the incidence of hypertension and cardiovascular events in nonsleepy patients with obstructive sleep apnea: a randomized controlled trial. JAMA 307:2161–2168
McEvoy RD, Antic NA, Heeley E, Luo Y, Ou Q, Zhang X, Mediano O, Chen R, Drager LF, Liu Z, Chen G, du B, McArdle N, Mukherjee S, Tripathi M, Billot L, Li Q, Lorenzi-Filho G, Barbe F, Redline S, Wang J, Arima H, Neal B, White DP, Grunstein RR, Zhong N, Anderson CS (2016) CPAP for prevention of cardiovascular events in obstructive sleep apnea. N Engl J Med 375:919–931
Qu D, Ludwig DS, Gammeltoft S, Piper M, Pelleymounter MA, Cullen MJ, Mathes WF, Przypek J, Kanarek R, Maratos-Flier E (1996) A role for melanin-concentrating hormone in the central regulation of feeding behaviour. Nature 380:243–247
Guan JL, Uehara K, Lu S, Wang QP, Funahashi H, Sakurai T, Yanagizawa M, Shioda S (2002) Reciprocal synaptic relationships between orexin- and melanin-concentrating hormone-containing neurons in the rat lateral hypothalamus: a novel circuit implicated in feeding regulation. Int J Obes Relat Metab Disord 26:1523–1532
Tsuneki H, Wada T, Sasaoka T (2010) Role of orexin in the regulation of glucose homeostasis. Acta Physiol (Oxford) 198:335–348
Vetrivelan R, Kong D, Ferrari LL, Arrigoni E, Madara JC, Bandaru SS, Lowell BB, Lu J, Saper CB (2016) Melanin-concentrating hormone neurons specifically promote rapid eye movement sleep in mice. Neuroscience 336:102–113
Alnaji A, Law GR, Scott EM (2016) The role of sleep duration in diabetes and glucose control. Proc Nutr Soc 75:512–520
Briancon-Marjollet A, Weiszenstein M, Henri M, Thomas A, Godin-Ribuot D, Polak J (2015) The impact of sleep disorders on glucose metabolism: endocrine and molecular mechanisms. Diabetol Metab Syndr 7:25
Stoohs RA, Facchini F, Guilleminault C (1996) Insulin resistance and sleep-disordered breathing in healthy humans. Am J Respir Crit Care Med 154:170–174
Lindberg E, Theorell-Haglow J, Svensson M, Gislason T, Berne C, Janson C (2012) Sleep apnea and glucose metabolism: a long-term follow-up in a community-based sample. Chest 142:935–942
Reutrakul S, Mokhlesi B (2017) Obstructive sleep apnea and diabetes: a state of the art review. Chest 152:1070–1086
Pamidi S, Wroblewski K, Broussard J, Day A, Hanlon EC, Abraham V, Tasali E (2012) Obstructive sleep apnea in young lean men: impact on insulin sensitivity and secretion. Diabetes Care 35:2384–2389
Lin QC, Zhang XB, Chen GP, Huang DY, Din HB, Tang AZ (2012) Obstructive sleep apnea syndrome is associated with some components of metabolic syndrome in nonobese adults. Sleep Breath 16:571–578
Bialasiewicz P, Pawlowski M, Nowak D, Loba J, Czupryniak L (2009) Decreasing concentration of interstitial glucose in REM sleep in subjects with normal glucose tolerance. Diabet Med 26:339–344
Thakkar M, Mallick BN (1993) Rapid eye movement sleep-deprivation-induced changes in glucose metabolic enzymes in rat brain. Sleep 16:691–694
Xu J, Long YS, Gozal D, Epstein PN (2009) Beta-cell death and proliferation after intermittent hypoxia: role of oxidative stress. Free Radic Biol Med 46:783–790
Wang N, Khan SA, Prabhakar NR, Nanduri J (2013) Impairment of pancreatic beta-cell function by chronic intermittent hypoxia. Exp Physiol 98:1376–1385
Shpirer I, Rapoport MJ, Stav D, Elizur A (2012) Normal and elevated HbA1C levels correlate with severity of hypoxemia in patients with obstructive sleep apnea and decrease following CPAP treatment. Sleep Breath 16:461–466
Bialasiewicz P, Czupryniak L, Pawlowski M, Nowak D (2011) Sleep disordered breathing in REM sleep reverses the downward trend in glucose concentration. Sleep Med 12:76–82
Chami HA, Gottlieb DJ, Redline S, Punjabi NM (2015) Association between glucose metabolism and sleep-disordered breathing during REM sleep. Am J Respir Crit Care Med 192:1118–1126
Grimaldi D, Beccuti G, Touma C, Van Cauter E, Mokhlesi B (2014) Association of obstructive sleep apnea in rapid eye movement sleep with reduced glycemic control in type 2 diabetes: therapeutic implications. Diabetes Care 37:355–363
Young LR, Taxin ZH, Norman RG, Walsleben JA, Rapoport DM, Ayappa I (2013) Response to CPAP withdrawal in patients with mild versus severe obstructive sleep apnea/hypopnea syndrome. Sleep 36:405–412
Chervin RD, Aldrich MS (1998) The relation between multiple sleep latency test findings and the frequency of apneic events in REM and non-REM sleep. Chest 113:980–984
Punjabi NM, Bandeen-Roche K, Marx JJ, Neubauer DN, Smith PL, Schwartz AR (2002) The association between daytime sleepiness and sleep-disordered breathing in NREM and REM sleep. Sleep 25:307–314
Chami HA, Baldwin CM, Silverman A, Zhang Y, Rapoport D, Punjabi NM, Gottlieb DJ (2010) Sleepiness, quality of life, and sleep maintenance in REM versus non-REM sleep-disordered breathing. Am J Respir Crit Care Med 181:997–1002
Varga AW, Kishi A, Mantua J, Lim J, Koushyk V, Leibert DP, Osorio RS, Rapoport DM, Ayappa I (2014) Apnea-induced rapid eye movement sleep disruption impairs human spatial navigational memory. J Neurosci 34:14571–14577
Lee SA, Paek JH, Han SH (2016) REM-related sleep-disordered breathing is associated with depressive symptoms in men but not in women. Sleep Breath 20:995–1002
Liu Y, Su C, Liu R, Lei G, Zhang W, Yang T, Miao J, Li Z (2011) NREM-AHI greater than REM-AHI versus REM-AHI greater than NREM-AHI in patients with obstructive sleep apnea: clinical and polysomnographic features. Sleep Breath 15:463–470
Pamidi S, Knutson KL, Ghods F, Mokhlesi B (2011) Depressive symptoms and obesity as predictors of sleepiness and quality of life in patients with REM-related obstructive sleep apnea: cross-sectional analysis of a large clinical population. Sleep Med 12:827–831
Stickgold R, Walker MP (2013) Sleep-dependent memory triage: evolving generalization through selective processing. Nat Neurosci 16:139–145
Cai DJ, Mednick SA, Harrison EM, Kanady JC, Mednick SC (2009) REM, not incubation, improves creativity by priming associative networks. Proc Natl Acad Sci U S A 106:10130–10134
Karni A, Tanne D, Rubenstein BS, Askenasy JJ, Sagi D (1994) Dependence on REM sleep of overnight improvement of a perceptual skill. Science 265:679–682
Plihal W, Born J (1997) Effects of early and late nocturnal sleep on declarative and procedural memory. J Cogn Neurosci 9:534–547
Rasch B, Gais S, Born J (2009) Impaired off-line consolidation of motor memories after combined blockade of cholinergic receptors during REM sleep-rich sleep. Neuropsychopharmacology 34:1843–1853
Barsky MM, Tucker MA, Stickgold R (2015) REM sleep enhancement of probabilistic classification learning is sensitive to subsequent interference. Neurobiol Learn Mem 122:63–68
Nishida M, Pearsall J, Buckner RL, Walker MP (2009) REM sleep, prefrontal theta, and the consolidation of human emotional memory. Cereb Cortex 19:1158–1166
van der Helm E, Yao J, Dutt S, Rao V, Saletin JM, Walker MP (2011) REM sleep depotentiates amygdala activity to previous emotional experiences. Curr Biol 21:2029–2032
van der Helm E, Walker MP (2011) Sleep and emotional memory processing. Sleep Med Clin 6:31–43
Sloan MA (1972) The effects of deprivation of rapid eye movement (REM) sleep on maze learning and aggression in the albino rat. J Psychiatr Res 9:101–111
Boyce R, Glasgow SD, Williams S, Adamantidis A (2016) Causal evidence for the role of REM sleep theta rhythm in contextual memory consolidation. Science 352:812–816
Cedernaes J, Osorio RS, Varga AW, Kam K, Schioth HB, Benedict C (2017) Candidate mechanisms underlying the association between sleep-wake disruptions and Alzheimer’s disease. Sleep Med Rev 31:102–111
Sharma, R.A., A.W. Varga, O.M. Bubu et al. (2017) Obstructive sleep apnea severity affects amyloid burden in cognitively normal elderly: a longitudinal study. Am J Respir Crit Care Med,
Pase MP, Himali JJ, Grima NA, Beiser AS, Satizabal CL, Aparicio HJ, Thomas RJ, Gottlieb DJ, Auerbach SH, Seshadri S (2017) Sleep architecture and the risk of incident dementia in the community. Neurology 89:1244–1250
Lettieri CJ, Williams SG, Collen JF, Wickwire EM (2017) Treatment of obstructive sleep apnea: achieving adherence to positive airway pressure treatment and dealing with complications. Sleep Med Clin 12:551–564
Berry RB, Kryger MH, Massie CA (2011) A novel nasal expiratory positive airway pressure (EPAP) device for the treatment of obstructive sleep apnea: a randomized controlled trial. Sleep 34:479–485
Kryger MH, Berry RB, Massie CA (2011) Long-term use of a nasal expiratory positive airway pressure (EPAP) device as a treatment for obstructive sleep apnea (OSA). J Clin Sleep Med 7:449–53B
Naismith SL, Winter VR, Hickie IB, Cistulli PA (2005) Effect of oral appliance therapy on neurobehavioral functioning in obstructive sleep apnea: a randomized controlled trial. J Clin Sleep Med 1:374–380
Aarab G, Lobbezoo F, Hamburger HL, Naeije M (2011) Oral appliance therapy versus nasal continuous positive airway pressure in obstructive sleep apnea: a randomized, placebo-controlled trial. Respiration 81:411–419
Strollo PJ Jr, Soose RJ, Maurer JT, de Vries N, Cornelius J, Froymovich O et al (2014) Upper-airway stimulation for obstructive sleep apnea. N Engl J Med 370:139–149
Mason M, Welsh EJ, Smith I (2013) Drug therapy for obstructive sleep apnoea in adults. Cochrane Database Syst Rev: CD003002
Horner RL, Grace KP, Wellman A (2017) A resource of potential drug targets and strategic decision-making for obstructive sleep apnoea pharmacotherapy. Respirology 22:861–873
Sands SA, Edwards BA, Terrill PI, Taranto-Montemurro L, Azarbarzin A, Marques M, Hess LB, White DP, Wellman A (2018) Phenotyping pharyngeal pathophysiology using polysomnography in patients with obstructive sleep apnea. In: Am J Respir Crit care med, vol 197, pp 1187–1197
Bastedo T, Chan E, Park E, Liu H, Horner RL (2009) Modulation of genioglossus muscle activity across sleep-wake states by histamine at the hypoglossal motor pool. Sleep 32:1313–1324
Trimmer JS (2015) Subcellular localization of K+ channels in mammalian brain neurons: remarkable precision in the midst of extraordinary complexity. Neuron 85:238–256
Grace KP, Hughes SW, Shahabi S, Horner RL (2013) K+ channel modulation causes genioglossus inhibition in REM sleep and is a strategy for reactivation. Respir Physiol Neurobiol 188:277–288
Topert C, Doring F, Wischmeyer E, Karschin C, Brockhaus J, Ballanyi K et al (1998) Kir2.4: a novel K+ inward rectifier channel associated with motoneurons of cranial nerve nuclei. J Neurosci 18:4096–4105
Fleury Curado T, Fishbein K, Pho H, Brennick M, Dergacheva O, Sennes LU, Pham LV, Ladenheim EE, Spencer R, Mendelowitz D, Schwartz AR, Polotsky VY (2017) Chemogenetic stimulation of the hypoglossal neurons improves upper airway patency. Sci Rep 7:44392
Horton GA, Fraigne JJ, Torontali ZA, Snow MB, Lapierre JL, Liu H, Montandon G, Peever JH, Horner RL (2017) Activation of the hypoglossal to tongue musculature motor pathway by remote control. Sci Rep 7:45860
Burdyga G, Lal S, Varro A, Dimaline R, Thompson DG, Dockray GJ (2004) Expression of cannabinoid CB1 receptors by vagal afferent neurons is inhibited by cholecystokinin. J Neurosci 24:2708–2715
Carley DW, Radulovacki M (2008) Pharmacology of vagal afferent influences on disordered breathing during sleep. Respir Physiol Neurobiol 164:197–203
Carley DW, Paviovic S, Janelidze M, Radulovacki M (2002) Functional role for cannabinoids in respiratory stability during sleep. Sleep 25:391–398
Calik MW, Radulovacki M, Carley DW (2014) Intranodose ganglion injections of dronabinol attenuate serotonin-induced apnea in Sprague-Dawley rat. Respir Physiol Neurobiol 190:20–24
Prasad B, Radulovacki MG, Carley DW (2013) Proof of concept trial of dronabinol in obstructive sleep apnea. Front Psychiatry 4:1
Carley DW, Prasad B, Reid KJ, Malkani R, Attarian H, Abbott SM, Vern B, Xie H, Yuan C, Zee PC (2018) Pharmacotherapy of apnea by cannabimimetic enhancement, the PACE clinical trial: effects of dronabinol in obstructive sleep apnea. Sleep 41
Veasey SC, Fenik P, Panckeri K, Pack AI, Hendricks JC (1999) The effects of trazodone with L-tryptophan on sleep-disordered breathing in the English bulldog. Am J Respir Crit Care Med 160:1659–1667
Boyd SB, Upender R, Walters AS, Goodpaster RL, Stanley JJ, Wang L, Chandrasekhar R (2016) Effective apnea-hypopnea index (“effective AHI”): a new measure of effectiveness for positive airway pressure therapy. Sleep 39:1961–1972
Acknowledgements
We thank Ward D. Pettibone for assistance in creation of the figures.
Funding
A.W.V is supported by the American Sleep Medicine Foundation Junior Faculty Award, an American Thoracic Society Foundation Unrestricted Grant, the Friedman Brain Institute Saint-Amand Award, and NIA awards R01AG056682 and R21AG059179. B.M. is supported by National Institutes of Health grant R01HL119161 and by the Merck Investigator Studies Program. These sponsors had no role in the design or conduct of this research.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Ethical approval
For this type of study, formal consent is not required.
Rights and permissions
About this article
Cite this article
Varga, A.W., Mokhlesi, B. REM obstructive sleep apnea: risk for adverse health outcomes and novel treatments. Sleep Breath 23, 413–423 (2019). https://doi.org/10.1007/s11325-018-1727-2
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11325-018-1727-2