| Nocturnal physiological and biochemical changes in sudden unexplained death syndrome: a preliminary report of a case control study. | |
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MedLine Citation:
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PMID: 7855653 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Sudden nocturnal deaths among "healthy" workers in Southeast Asia have been termed "sudden unexplained nocturnal death syndrome (SUNDS)" or "sudden unexplained death syndrome (SUDS)". The pathogenesis is still unknown. The paucity of publications on nocturnal monitoring and scientific data stimulated us to perform this study, which included biochemical tests and physiological monitoring during the night in 11 males north-eastern Thai workers. Group 1 (G1) consisted of 5 subjects with neither a previous history of near-SUDS (NSUDS) nor a familial history of SUDS (FHSUDS). Group 2 (G2) consisted of 6 subjects with a family history of either SUDS or NSUDS. Two subjects in G2 presented with NSUDS. Two-day nocturnal monitoring included blood sugar, electrolytes, and respiratory parameters. 24-hour Holter ECGs were monitored for 2 days. The subjects underwent exercise stress tests on the 2nd day of this study. Significant nocturnal hypoxia was more common in G2 than G1 and this abnormality was aggravated by exercise. There were no significant findings in sleep apnea (apnea indices) or in nocturnal biochemical changes, eg blood sugar, electrolytes, thiamine. The recordings of the Holter-ECGs were within normal limits in both groups. We conclude that nocturnal hypoxia might be the primary abnormality in SUDS, and this abnormality was aggravated by the day-time exercise. The cause of nocturnal hypoxia requires further studies. |
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Authors:
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P Charoenpan; K Muntarbhorn; P Boongird; G Puavilai; R Ratanaprakarn; S Indraprasit; V Tanphaichitr; K Likittanasombat; W Varavithya; P Tatsanavivat |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Southeast Asian journal of tropical medicine and public health Volume: 25 ISSN: 0125-1562 ISO Abbreviation: Southeast Asian J. Trop. Med. Public Health Publication Date: 1994 Jun |
Date Detail:
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Created Date: 1995-03-16 Completed Date: 1995-03-16 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0266303 Medline TA: Southeast Asian J Trop Med Public Health Country: THAILAND |
Other Details:
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Languages: eng Pagination: 335-40 Citation Subset: IM |
Affiliation:
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Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Case-Control Studies Circadian Rhythm / physiology* Death, Sudden, Cardiac / epidemiology, etiology* Family Health Humans Male Middle Aged Monitoring, Physiologic Prospective Studies Syndrome Thailand / epidemiology Time Factors |
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