| Nocturnal oxygen desaturation in patients with congestive heart failure. | |
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MedLine Citation:
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PMID: 11148986 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of our study was to evaluate the modifications of the respiratory pattern during sleeping in patients with congestive heart failure (CHF) by a simple pulse-oxymetry. We studied 10 subjects (8M/2F), mean age 71.4 +/- 12.4 yrs, admitted to sub-intensive cardiological therapy unit, with diagnosis of CHF due to left ventricular insufficiency by ischemic, hypertensive or idiopathic cardiopathy, when in a stable clinical condition. All patients presented arterial blood gas values within normal limits. The ejection fraction of left ventricle showed a mean value of 30.4 +/- 8.2% (range 20%-45%). Nocturnal pulse-oxymetry was performed by pulse-oxymeter (PULSOX 7 Minolta) provided with a digital probe at a sliding speed 24 cm/h. Our data showed that all patients presented nocturnal desaturation episodes (mean oxygen desaturation index 15.7 +/- 18.4). In two patients, we found an "Overlap Syndrome" (obstructive sleep apnoea in presence of cardiopathy). In other patients pulse-oxymetry showed a typical sequence of "fall-rise" basal O2 saturation lasting from 36 to 72 seconds, collected in "wave trains" which were present from 14% to 70% of total sleep time compatible with periodic breathing. In conclusion, our study shows that patients affected by CHF, even if in stable condition and with a PaO2, within normal values, present more or less severe disturbances of nocturnal SaO2, with periodic and regular sequences of SaO2 fall-rise that may be referred to ventilatory troubles such as periodic breathing or Cheyne-Stokes breathing. In these patients the pulse-oxymetry may be considered an efficacious, simple, cheap and well tolerated method. |
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Authors:
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O Resta; M P Foschino-Barbaro; P G Bonfitto; S Talamo; M C Nocerino; A Stefà no; G Biasco |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Bollettino della Società italiana di biologia sperimentale Volume: 75 ISSN: 0037-8771 ISO Abbreviation: Boll. Soc. Ital. Biol. Sper. Publication Date: 1999 May-Jun |
Date Detail:
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Created Date: 2001-01-08 Completed Date: 2001-01-25 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7506962 Medline TA: Boll Soc Ital Biol Sper Country: Italy |
Other Details:
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Languages: eng Pagination: 31-8 Citation Subset: IM |
Affiliation:
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Department of Clinical Methodology and Medical Surgery Technology, S. Michele in Laureto Hospital, Putignano, Bari. oresta@pneumol.uniba.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Anoxia / etiology, metabolism*, physiopathology Female Heart Failure / complications, metabolism*, physiopathology Humans Male Oximetry / methods Oxygen / metabolism* Parasomnias / etiology, metabolism*, physiopathology |
| Chemical | |
Reg. No./Substance:
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7782-44-7/Oxygen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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