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CASE REPORT
J Korean Sleep Res Soc. 2011;8(2):40-44.         doi: https://doi.org/10.13078/jksrs.11010
Three Cases of Catathrenia (Nocturnal Groaning)
Min Ju Kim, Gha-Hyun Lee, Chun-Sik Kim, and Sang-Ahm Lee
Department of Neurology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
Corresponding Author: Sang-Ahm Lee ,Tel: +82-2-3010-3445, Fax: +82-2-474-4691, Email: salee@amc.seoul.kr
Received: 18 August 2011;  Accepted: 16 November 2011.
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ABSTRACT
Catathrenia(nocturnal groaning) is a rare disorder recently classified as a parasomnia. We presented three cases of catathrenia which of them performed continuous positive airway pressure (CPAP) titration. All patients had same patterns of breathing during catathrenia sound which recorded in polysomnography as central sleep apnea starting with deep inspiration. Catathrenia predominantly occurred in the last REM sleep period in case 1 but in all stages in case 2. Case 3 had all catathrenia in NREM sleep. Case 2 and 3 had combined obstructive sleep apnea (Apnea-hypopnea Index=21.7/hr and 20.5/hr). Case 1 and 2 performed CPAP titration. With or without combined obstructive sleep apnea, catathrenia events were remarkably decreased.
Keywords: Catathrenia | Nocturnal groaning | Parasomnia.
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A Case of Catathrenia (Nocturnal Groaning)  2004 December;1(2)
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