| What Happens before Syncope? Study of the Time Frame Preceding Vasovagal Syncope. | |
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MedLine Citation:
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PMID: 22347649 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Objective. The events characterizing the very last part of the vasovagal crisis has not been determined. The aim of the study was to analyze the variations in respiratory pattern preceding the vaso-vagal syncope full-blown and the relationship between cardiovascular functions in order to assess the temporal sequence. Methods. Eleven consecutive patients were studied. Heart rate, arterial pressure, respiratory frequency, tidal volume, carbon dioxide, and oxygen saturation in time domain from supine and standing recordings were analyzed. Results. The respiratory activity is different in the time frame preceding syncope, both in V(T) and breathing rate, and that the increase of the lung ventilation does not influence the baroreflex control during the presyncopal period but may be cause of the baroreflex failure during the full-blown syncope. |
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Authors:
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Alfonso Lagi; Simone Cencetti; Alessandro Cartei |
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Publication Detail:
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Type: Journal Article Date: 2011-04-14 |
Journal Detail:
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Title: ISRN cardiology Volume: 2011 ISSN: 2090-5599 ISO Abbreviation: ISRN Cardiol Publication Date: 2011 |
Date Detail:
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Created Date: 2012-02-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101566293 Medline TA: ISRN Cardiol Country: Egypt |
Other Details:
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Languages: eng Pagination: 659787 Citation Subset: - |
Affiliation:
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Dipartimento di Medicina Interna, Ospedale Santa Maria Nuova, Piazza S. Maria Nuova, 50100 Firenze, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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