Catathrenia

Catathrenia
Catathrenia
Specialty	Otorhinolaryngology, sleep medicine, Somnology
Symptoms	groaning or moaning during sleep

Catathrenia or nocturnal groaning is a sleep-related breathing disorder, consisting of end-inspiratory apnea (breath holding) and expiratory groaning during sleep. It describes a rare condition characterized by monotonous, irregular groans while sleeping.^[1] Catathrenia begins with a deep inspiration. The person with catathrenia holds his or her breath against a closed glottis, similar to the Valsalva maneuver. Expiration can be slow and accompanied by sound caused by vibration of the vocal cords or a simple rapid exhalation. Despite a slower breathing rate, no oxygen desaturation usually occurs.^[2]^[3]^[4] The moaning sound is usually not noticed by the person producing the sound, but it can be extremely disturbing to sleep partners.^[1] It appears more often during expiration REM sleep than in NREM sleep.^[5]

Catathrenia is distinct from both somniloquy (sleep talking) and obstructive sleep apnea (OSA). The sound is produced during exhalation, as opposed to snoring, which occurs during inhalation.

Etymology

Catathrenia (from the Greek kata, meaning “below”, and threnia, meaning “to lament”).^[6]

Classification

Catathrenia has been defined as a parasomnia in the International Classification of Sleep Disorders Diagnostic and Coding Manual (ICSD-2), but there is debate about its classification.^[1] Importantly, in the latest version of the International Classification of Sleep Disorders (ICSD-3), catathrenia has been included in the category of respiratory disorders, and thus it has been removed from the parasomnia category, as it was in the second version of the manual; nevertheless, a debate about the nature and classification of the disorder, still exist.^[7]

Signs and symptoms

Catathrenia itself is not considered life-threatening.

Bed partners generally report hearing the person take a deep breath, hold it, then slowly exhale; often with a high-pitched squeak or groaning sound.^[8]

Common characteristics in reported cases

There are reported characteristics that are shared among patients with catathrenia. The main characteristics are:

Vocal sound: Sounds are usually a short or long vocalisation of the same letter (mainly an [a], [e], [o] sound or something in between).^[3] Contrary to snoring which has only formants, catathrenia has also harmonics and show more regular and similar patterns between nights.^[9]
Onset of groanings: Groanings tend to begin in childhood, adolescence or early adulthood.^[10] The ICSD-2 established the age of onset ranging from 5 to 36 years.^[11]
Consistency from night to night.
Appearing during expiration: The sounds show up exclusively on expiration^[12] and are interrupted during inspiration.
Unawareness of the problem: Patients usually sleep normally despite the sounds and the effort to breath.^[12] However, bed partners and entourage are on one hand disturbed by the emitted noises during their sleep and on the other hand concerned about the pathological meaning of the disease. The latter highlights the importance of reassuring entourage about the benignity of the disease.^[3]
No predisposing factors: No clear predisposing factors or aetiology have been demonstrated.^[3]
The duration of the groaning sound varies from two to 49 s.^[5]

There are a few other similarities^{[citation needed]} amongst people with catathrenia that have not yet been studied properly:

Many people with catathrenia mention that they also have some form of stress or anxiety in their lives.^[10]
People with catathrenia themselves do not feel like they are experiencing a sleep apnea; the breath-holding appears to be controlled through the unconscious. Oxygen desaturation during a catathrenia episode is usually negligible.^{[citation needed]}
Many took part in sports activities during teens and twenties some which required breath-holding which included many types of sports such as swimming and even weight lifting. They find a certain level of comfort in breath-holding, and often do it while awake.^{[citation needed]}
Observations have been made of instances of breath holding during daily activities that require concentration.
Some people with catathrenia recalled having lucid or stress dreams during their catathrenia episodes during their sleep.
Some people with catathrenia complain of having a painful chest upon waking from sleep.

Certain side effects include sore throat, fatigue, and dizziness.^[13]

Discrepancies among reported cases

Sound duration: The duration of the sound varies among patients. While the ISCD-2 established limits between 2 and 49 s,^[11] authors have described other ranges including short duration as of 0.5 s.^[14] Review of reported cases indicates two types of patients whose produced sound can either be short lasting (0.5 to 1.5 s) or longer lasting (2 to 20 s).^[4] Nonetheless, it is not clear if the sounds are in fact single long noises fragmented by brief expirations.^[3]
Sound intensity: Patients show a large variability in sound intensity ranging from 40 dB to 120 dB.^[15] In addition, sounds can also be long and soft as well as short and loud.^[7]
Onset time of the noise during the night: The ISCD-2 established latency of noises after falling asleep ranging from 2 to 6 h.^[11] However, in some published cases the onset time of the noises is reported as being shorter (3 min ^[16]).
Association with respiratory disorders.^[3]
Response to continuous positive airway pressure (CPAP) treatment: The response to CPAP treatment partly depends on respiratory disorders. Patients with respiratory dysrhythmia may show poor to no improvements.^[3] CPAP in combination with drugs may also obtain unsatisfactory results.^[10]^[17] For other patients there is an excellent response to CPAP treatment (e.g., for young women patients with catathrenia over a 5-year period,^[18] patient with OSA and pulmonary hypertension,^[16] and others ^[10]).
Predominance of REM or NREM: Catathrenia typically, sometimes even exclusively, occurs during REM sleep,^[1] although it may also occur to a lesser degree during NREM sleep. The predominance of REM or NREM sleep during which noises occurs varies from patient to patient.^[9] For some cases, a REM predominance has been reported whereas it is the opposite for others. Other reports indicated that sounds may occur at any time during sleep.^[15]

Epidemiology

It was in 1983 when the first case of catathrenia was described.^[19] The disorder is especially rare and many sleep specialists and otolaryngologists are still unfamiliar with this atypical sleep pattern.^[8] Catathrenia must be distinguished from moaning during epileptic seizures, central sleep apnea, sleep-related laryngospasm, snoring, and stridor.^[2] Since polysomnography alone is insufficient to correctly distinguish catathrenia from central sleep apnea, a video-polysomnography with audio recording is necessary to diagnose catathrenia and avoid mistakes.^[2] Despite the fact that the incidence of catathrenia might be underestimated due to misdiagnoses, an institution in Norway has found an incidence of 4 out of 1,004 (0.4%) among patients with sleep and/or wake problems over a 1-year period.^[20] A previous study in Japan found an incidence of 25 out of 15,052 (0.17%) among patients with sleep and/or wake problems over a 10-year period.^[21]

Management

Sleeping in a more upright position seems to lessen catathrenia (as well as sleep apnea).^{[citation needed]} Performing regular aerobic exercise, where steady breathing is necessary (running, cycling etc.) may lessen catathrenia. Strength exercise, on the other hand, may worsen catathrenia because of the tendency to hold one's breath while exercising.^{[citation needed]} Yoga and/or meditation focused on steady and regular breathing may lessen catathrenia.^{[citation needed]}

Some evidence indicates that continuous positive airway pressure can be an effective treatment for catathrenia:^[22]^[23] in a study, the subject using CPAP significantly decreased the sounds typically produced because of the disorder, which almost disappeared.

Cause

The exact cause of catathrenia is still unknown;^[24] there is debate on whether the cause is physical or neurological.

Other nocturnal vocalisation

Multiple studies have described nocturnal vocalisation among animals and have also reported some cases in humans, especially in patients with Parkinson's disease. The nocturnal vocalisation can be groaning, moaning, or different sounds produced while asleep, the most encountered being catathrenia and sleep talking.^[14]

References

^ ^a ^b ^c ^d Vetrugno, R.; Lugaresi, E.; Plazzi, G.; Provini, F.; D'Angelo, R.; Montagna, P. (2007-11-01). "Catathrenia (nocturnal groaning): an abnormal respiratory pattern during sleep". European Journal of Neurology. 14 (11): 1236–1243. doi:10.1111/j.1468-1331.2007.01954.x. ISSN 1468-1331. PMID 17877735. S2CID 10742456.
^ ^a ^b ^c Okura, Mutsumi; Muraki, Hisae (2013-08-01). "WS1-3. Attended video–audio polysomnographic study about patients with catathrenia (sleep related groaning)". Clinical Neurophysiology. 124 (8): e29. doi:10.1016/j.clinph.2013.02.071. ISSN 1388-2457. S2CID 54382541.
^ ^a ^b ^c ^d ^e ^f ^g Iriarte, Jorge; Campo, Arantza; Alegre, Manuel; Fernández, Secundino; Urrestarazu, Elena (2015-07-01). "Catathrenia: respiratory disorder or parasomnia?". Sleep Medicine. 16 (7): 827–830. doi:10.1016/j.sleep.2014.12.026. ISSN 1389-9457. PMID 26004681.
^ ^a ^b Montagna, Pasquale; Ferini-Strambi, Luigi; Lugaresi, Elio; Vetrugno, Roberto (2008-03-01). "Catathrenia (Nocturnal Groaning): What is It?". Sleep. 31 (3): 308–309. doi:10.1093/sleep/31.3.308. ISSN 0161-8105. PMC 2276742. PMID 18363305.
^ ^a ^b Koo, Dae Lim; Hong, Seung Bong; Joo, Eun Yeon (2012). "Acoustic characteristic of catathrenia and snoring: Different subtypes of catathrenia". Sleep Medicine. 13 (7): 961–964. doi:10.1016/j.sleep.2012.04.002. PMID 22613219.
^ Langley, R. J.; Hill, L.; Hill, E. A.; Urquhart, D. S. (2017). "The curious incident of groaning in the night-time". Breathe (Sheffield, England). 13 (2): 123–126. doi:10.1183/20734735.017816. PMC 5467869. PMID 28620432.
^ ^a ^b Iriarte, J., Campo, A., Alegre, M., Fernández, S., & Urrestarazu, E. (2015). Catathrenia: respiratory disorder or parasomnia?. Sleep medicine, 16(7), 827-830.
^ ^a ^b Zaghi, Soroush; Guilleminault, Christian; Chhetri, Dinesh K.; Camacho, Macario; Alonso, Jose (2017-04-15). "Catathrenia (Nocturnal Groaning): A Social Media Survey and State-of-the-Art Review". Journal of Clinical Sleep Medicine. 13 (4): 613–622. doi:10.5664/jcsm.6556. ISSN 1550-9389. PMC 5359339. PMID 28095968.
^ ^a ^b Iriarte, Jorge; Fernández, Secundino; Fernandez-Arrechea, Natalia; Urrestarazu, Elena; Pagola, Inmaculada; Alegre, Manuel; Artieda, Julio (2011-05-01). "Sound analysis of catathrenia: a vocal expiratory sound". Sleep and Breathing. 15 (2): 229–235. doi:10.1007/s11325-010-0420-x. ISSN 1522-1709. PMID 20886300. S2CID 28127243.
^ ^a ^b ^c ^d Dias, C.; Sousa, L.; Batata, L.; Teixeira, F.; Moita, J.; Moutinho dos Santos, J. (2017-03-01). "CPAP treatment for catathrenia" (PDF). Revista Portuguesa de Pneumologia (English Edition). 23 (2): 101–104. doi:10.1016/j.rppnen.2016.12.008. ISSN 2173-5115. PMID 28219607.
^ ^a ^b ^c The international classification of sleep disorders : diagnostic & coding manual. American Academy of Sleep Medicine. (2nd ed.). Westchester, IL: American Academy of Sleep Medicine. 2005. ISBN 9780965722025. OCLC 67281425.{{cite book}}: CS1 maint: others (link)
^ ^a ^b American Academy of Sleep Medicine. International classification of sleep disorders. 3rd ed. Darien, IL: American Academy of Sleep Medicine; 2014.
^ "Why Catathrenia Isn't Taken as Seriously as Other Sleeping Disorders". Zeesnoring. March 2017. Retrieved 7 June 2018.
^ ^a ^b Abbasi, Adnan; Morgenthaler, Timothy I.; Slocumb, Nancy; Tippmann-Peikert, Maja; Olson, Eric; Ramar, Kannan (2012). "Nocturnal moaning and groaning—catathrenia or nocturnal vocalizations". Sleep and Breathing. 16 (2): 367–373. doi:10.1007/s11325-011-0503-3. PMID 21380609. S2CID 5655092.
^ ^a ^b Khaja, Aliuddin M.; Hagen, Chad C.; Guilleminault, Christian (2008-06-01). "Catathrenia is Not Expiratory Snoring". Sleep. 31 (6): 774–775. doi:10.1093/sleep/31.6.774. ISSN 0161-8105. PMC 2442405. PMID 18548821.
^ ^a ^b Songu, Murat; Yilmaz, Hikmet; Yuceturk, Ali Vefa; Gunhan, Kivanc; Ince, Aysun; Bayturan, Ozgur (2008-11-01). "Effect of CPAP therapy on catathrenia and OSA: a case report and review of the literature". Sleep and Breathing. 12 (4): 401–405. doi:10.1007/s11325-008-0194-6. ISSN 1522-1709. PMID 18516633. S2CID 29300870.
^ Oldani, A.; Manconi, M.; Zucconi, M.; Castronovo, V.; Ferini-Strambi, L. (2005). "'Nocturnal groaning': just a sound or parasomnia?". Journal of Sleep Research. 14 (3): 305–310. doi:10.1111/j.1365-2869.2005.00460.x. ISSN 1365-2869. PMID 16120106.
^ Khaja, Aliuddin M.; Hagen, Chad C.; Guilleminault, Christian (2008-01-01). "Catathrenia: Parasomnia or Uncommon Feature of Sleep Disordered Breathing?". Sleep. 31 (1): 132–139. doi:10.1093/sleep/31.1.132. ISSN 0161-8105. PMC 2225555. PMID 18220087.
^ DE ROECK, J (1983). "Sleep-related expiratory groaning : A case report". Sleep Res. 12: 237.
^ Øverland, Britt; Akre, Harriet; Berdal, Hanne; Skatvedt, Olav (2012-01-01). "Sleep-related groaning: Prevalence and characteristics in a cohort of patients with suspected obstructive sleep apnea". Acta Oto-Laryngologica. 132 (1): 90–95. doi:10.3109/00016489.2011.624119. ISSN 0001-6489. PMID 22074488. S2CID 30889814.
^ Jaar O, Pilon M, Montplaisir J, Zadra A. What is nocturnal groaning (catathrenia)? - analysis of PSG data. Sleep. 2009;32(Abstract Suppl):A290–A291.
^ Iriarte, J., Alegre, M., Urrestarazu, E., Viteri, C., Arcocha, J., & Artieda, J. (2006). Continuous positive airway pressure as treatment for catathrenia (nocturnal groaning). Neurology, 66(4), 609-610.
^ Ortega-Albas, J. J., Diaz, J. R., Serrano, A. L., & de Entrambasaguas, M. (2006). Continuous positive airway pressure as treatment for catathrenia (nocturnal groaning). Neurology, 67(6), 1103-1103.
^ Alonso, Jose; Camacho, Macario; Chhetri, Dinesh K.; Guilleminault, Christian; Zaghi, Soroush (April 15, 2017). "Catathrenia (Nocturnal Groaning): A Social Media Survey and State-of-the-Art Review". Journal of Clinical Sleep Medicine. 13 (4): 613–622. doi:10.5664/jcsm.6556. PMC 5359339. PMID 28095968.

External links

[Vetrugno-1] Vetrugno, R.; Lugaresi, E.; Plazzi, G.; Provini, F.; D'Angelo, R.; Montagna, P. (2007-11-01). "Catathrenia (nocturnal groaning): an abnormal respiratory pattern during sleep". European Journal of Neurology. 14 (11): 1236–1243. doi:10.1111/j.1468-1331.2007.01954.x. ISSN 1468-1331. PMID 17877735. S2CID 10742456.

[:12-2] Okura, Mutsumi; Muraki, Hisae (2013-08-01). "WS1-3. Attended video–audio polysomnographic study about patients with catathrenia (sleep related groaning)". Clinical Neurophysiology. 124 (8): e29. doi:10.1016/j.clinph.2013.02.071. ISSN 1388-2457. S2CID 54382541.

[:2-3] ^ ^a ^b ^c ^d ^e ^f ^g Iriarte, Jorge; Campo, Arantza; Alegre, Manuel; Fernández, Secundino; Urrestarazu, Elena (2015-07-01). "Catathrenia: respiratory disorder or parasomnia?". Sleep Medicine. 16 (7): 827–830. doi:10.1016/j.sleep.2014.12.026. ISSN 1389-9457. PMID 26004681.

[:3-4] Montagna, Pasquale; Ferini-Strambi, Luigi; Lugaresi, Elio; Vetrugno, Roberto (2008-03-01). "Catathrenia (Nocturnal Groaning): What is It?". Sleep. 31 (3): 308–309. doi:10.1093/sleep/31.3.308. ISSN 0161-8105. PMC 2276742. PMID 18363305.

[Koo-5] Koo, Dae Lim; Hong, Seung Bong; Joo, Eun Yeon (2012). "Acoustic characteristic of catathrenia and snoring: Different subtypes of catathrenia". Sleep Medicine. 13 (7): 961–964. doi:10.1016/j.sleep.2012.04.002. PMID 22613219.

[6] Langley, R. J.; Hill, L.; Hill, E. A.; Urquhart, D. S. (2017). "The curious incident of groaning in the night-time". Breathe (Sheffield, England). 13 (2): 123–126. doi:10.1183/20734735.017816. PMC 5467869. PMID 28620432.

[:4-7] Iriarte, J., Campo, A., Alegre, M., Fernández, S., & Urrestarazu, E. (2015). Catathrenia: respiratory disorder or parasomnia?. Sleep medicine, 16(7), 827-830.

[:02-8] Zaghi, Soroush; Guilleminault, Christian; Chhetri, Dinesh K.; Camacho, Macario; Alonso, Jose (2017-04-15). "Catathrenia (Nocturnal Groaning): A Social Media Survey and State-of-the-Art Review". Journal of Clinical Sleep Medicine. 13 (4): 613–622. doi:10.5664/jcsm.6556. ISSN 1550-9389. PMC 5359339. PMID 28095968.

[:7-9] Iriarte, Jorge; Fernández, Secundino; Fernandez-Arrechea, Natalia; Urrestarazu, Elena; Pagola, Inmaculada; Alegre, Manuel; Artieda, Julio (2011-05-01). "Sound analysis of catathrenia: a vocal expiratory sound". Sleep and Breathing. 15 (2): 229–235. doi:10.1007/s11325-010-0420-x. ISSN 1522-1709. PMID 20886300. S2CID 28127243.

[:0-10] Dias, C.; Sousa, L.; Batata, L.; Teixeira, F.; Moita, J.; Moutinho dos Santos, J. (2017-03-01). "CPAP treatment for catathrenia" (PDF). Revista Portuguesa de Pneumologia (English Edition). 23 (2): 101–104. doi:10.1016/j.rppnen.2016.12.008. ISSN 2173-5115. PMID 28219607.

[:5-11] The international classification of sleep disorders : diagnostic & coding manual. American Academy of Sleep Medicine. (2nd ed.). Westchester, IL: American Academy of Sleep Medicine. 2005. ISBN 9780965722025. OCLC 67281425.{{cite book}}: CS1 maint: others (link)

[:8-12] American Academy of Sleep Medicine. International classification of sleep disorders. 3rd ed. Darien, IL: American Academy of Sleep Medicine; 2014.

[13] "Why Catathrenia Isn't Taken as Seriously as Other Sleeping Disorders". Zeesnoring. March 2017. Retrieved 7 June 2018.

[Abbasi-14] Abbasi, Adnan; Morgenthaler, Timothy I.; Slocumb, Nancy; Tippmann-Peikert, Maja; Olson, Eric; Ramar, Kannan (2012). "Nocturnal moaning and groaning—catathrenia or nocturnal vocalizations". Sleep and Breathing. 16 (2): 367–373. doi:10.1007/s11325-011-0503-3. PMID 21380609. S2CID 5655092.

[:6-15] Khaja, Aliuddin M.; Hagen, Chad C.; Guilleminault, Christian (2008-06-01). "Catathrenia is Not Expiratory Snoring". Sleep. 31 (6): 774–775. doi:10.1093/sleep/31.6.774. ISSN 0161-8105. PMC 2442405. PMID 18548821.

[Songu_401–405-16] Songu, Murat; Yilmaz, Hikmet; Yuceturk, Ali Vefa; Gunhan, Kivanc; Ince, Aysun; Bayturan, Ozgur (2008-11-01). "Effect of CPAP therapy on catathrenia and OSA: a case report and review of the literature". Sleep and Breathing. 12 (4): 401–405. doi:10.1007/s11325-008-0194-6. ISSN 1522-1709. PMID 18516633. S2CID 29300870.

[17] Oldani, A.; Manconi, M.; Zucconi, M.; Castronovo, V.; Ferini-Strambi, L. (2005). "'Nocturnal groaning': just a sound or parasomnia?". Journal of Sleep Research. 14 (3): 305–310. doi:10.1111/j.1365-2869.2005.00460.x. ISSN 1365-2869. PMID 16120106.

[18] Khaja, Aliuddin M.; Hagen, Chad C.; Guilleminault, Christian (2008-01-01). "Catathrenia: Parasomnia or Uncommon Feature of Sleep Disordered Breathing?". Sleep. 31 (1): 132–139. doi:10.1093/sleep/31.1.132. ISSN 0161-8105. PMC 2225555. PMID 18220087.

[19] DE ROECK, J (1983). "Sleep-related expiratory groaning : A case report". Sleep Res. 12: 237.

[20] Øverland, Britt; Akre, Harriet; Berdal, Hanne; Skatvedt, Olav (2012-01-01). "Sleep-related groaning: Prevalence and characteristics in a cohort of patients with suspected obstructive sleep apnea". Acta Oto-Laryngologica. 132 (1): 90–95. doi:10.3109/00016489.2011.624119. ISSN 0001-6489. PMID 22074488. S2CID 30889814.

[21] Jaar O, Pilon M, Montplaisir J, Zadra A. What is nocturnal groaning (catathrenia)? - analysis of PSG data. Sleep. 2009;32(Abstract Suppl):A290–A291.

[22] Iriarte, J., Alegre, M., Urrestarazu, E., Viteri, C., Arcocha, J., & Artieda, J. (2006). Continuous positive airway pressure as treatment for catathrenia (nocturnal groaning). Neurology, 66(4), 609-610.

[23] Ortega-Albas, J. J., Diaz, J. R., Serrano, A. L., & de Entrambasaguas, M. (2006). Continuous positive airway pressure as treatment for catathrenia (nocturnal groaning). Neurology, 67(6), 1103-1103.

[24] Alonso, Jose; Camacho, Macario; Chhetri, Dinesh K.; Guilleminault, Christian; Zaghi, Soroush (April 15, 2017). "Catathrenia (Nocturnal Groaning): A Social Media Survey and State-of-the-Art Review". Journal of Clinical Sleep Medicine. 13 (4): 613–622. doi:10.5664/jcsm.6556. PMC 5359339. PMID 28095968.

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[6]

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[8]

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[10]

[11]

[12]

[13]

[14]

[15]

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[17]

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Catathrenia

Etymology

Classification

Signs and symptoms

Common characteristics in reported cases

Discrepancies among reported cases

Epidemiology

Management

Cause

Other nocturnal vocalisation

References

External links

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