| Sound analysis of catathrenia: a vocal expiratory sound. | |
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MedLine Citation:
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PMID: 20886300 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: Catathrenia (nocturnal groaning) is a rare and relatively little-understood parasomnia. The characteristics of the sound and the recordings are not similar in all the relevant research papers. Indeed, there is currently some discussion regarding whether or not this is a single entity. For some authors, catathrenia is a particular form of parasomnia; for others, it may be a variant of snoring or a respiratory problem. The goal is to establish whether or not catathrenia may be regarded as an expiratory vocal sound. An attempt was made to classify the origin of this sound according to its sound structure. METHODS: We present the sound analysis of two patients, a man and a woman, with clinically diagnosed catathrenia and we compared them with the analysis of snoring. We use the spectrogram and the oscillogram. We classified the sounds according to the Yanagihara criteria. RESULTS: The vocal nature of the sound was confirmed, and several significant differences to some snoring sounds were discovered. The analysis of the catathrenia samples demonstrated that these signals are type II according to Yanagihara classification; these signals had a very short jitter, and had formants and harmonics. However, snoring is a type III, very irregular and had formants but not harmonics. CONCLUSIONS: The oscillogram and the spectrogram in these patients show that the origins of the sounds are clearly different: catathrenia is laryngeal, while snoring is guttural. Catathrenia cannot be considered as expiratory snoring. |
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Authors:
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Jorge Iriarte; Secundino Fernández; Natalia Fernandez-Arrechea; Elena Urrestarazu; Inmaculada Pagola; Manuel Alegre; Julio Artieda |
Publication Detail:
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Type: Case Reports; Comparative Study; Journal Article Date: 2010-10-02 |
Journal Detail:
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Title: Sleep & breathing = Schlaf & Atmung Volume: 15 ISSN: 1522-1709 ISO Abbreviation: Sleep Breath Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-05-24 Completed Date: 2011-11-02 Revised Date: 2011-12-13 |
Medline Journal Info:
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Nlm Unique ID: 9804161 Medline TA: Sleep Breath Country: Germany |
Other Details:
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Languages: eng Pagination: 229-35 Citation Subset: IM |
Affiliation:
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Sleep Unit, University Clinic of Navarra, University of Navarra, Pamplona, Spain. jiriarte@unav.es |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Female Humans Larynx / physiopathology Male Middle Aged Oscillometry* Parasomnias / diagnosis, physiopathology* Polysomnography Respiratory Sounds / physiopathology* Sleep Apnea, Obstructive / diagnosis*, physiopathology* Sleep Stages Sound Spectrography* |
| Comments/Corrections | |
Comment In:
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Sleep Breath. 2011 Dec;15(4):623
[PMID:
20862556
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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