Atrial pressure and experimental atrial fibrillation (Journal article)

Sideris, D. A./ Toumanidis, S. T./ Tselepatiotis, E./ Kostopoulos, K./ Stringli, T./ Kitsiou, T./ Moulopoulos, S. D.

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dc.contributor.authorSideris, D. A.en
dc.contributor.authorToumanidis, S. T.en
dc.contributor.authorTselepatiotis, E.en
dc.contributor.authorKostopoulos, K.en
dc.contributor.authorStringli, T.en
dc.contributor.authorKitsiou, T.en
dc.contributor.authorMoulopoulos, S. D.en
dc.date.accessioned2015-11-24T19:34:08Z-
dc.date.available2015-11-24T19:34:08Z-
dc.identifier.issn0147-8389-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/23602-
dc.rightsDefault Licence-
dc.subjectAnimalsen
dc.subjectAtrial Fibrillation/*etiology/physiopathologyen
dc.subject*Atrial Functionen
dc.subjectAtrial Function, Leften
dc.subjectAtrial Function, Righten
dc.subjectAtrial Premature Complexes/etiology/physiopathologyen
dc.subject*Blood Pressureen
dc.subjectBlood Transfusionen
dc.subjectBlood Volumeen
dc.subjectCardiac Pacing, Artificial/methodsen
dc.subjectDogsen
dc.subjectHeart Rateen
dc.subjectHemorrhageen
dc.titleAtrial pressure and experimental atrial fibrillationen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.secondaryhttp://www.ncbi.nlm.nih.gov/pubmed/7491311-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικήςel
heal.publicationDate1995-
heal.abstractA possible profibrillatory effect on the atria of an elevated atrial pressure and the site of atrial stimulation was examined. In 15 anesthetized dogs, right or left atrial or biatrial pacing was applied at a high rate (300-600/min) for 5 seconds at double threshold intensity under a wide range of atrial pressures achieved by venous or arterial transfusion or bleeding. Induction of atrial fibrillation in 236 of 1,971 pacing runs was associated with a significantly higher (P < 0.001) atrial pressure (21.6 +/- 12.2 mmHg, mean +/- SD) than maintenance of sinus rhythm (16.8 +/- 11.1 mmHg in 1,735 of 1,971 pacing runs). Stimulation of the right atrium resulted in atrial fibrillation more frequently than left atrial or biatrial stimulation, with biatrial stimulation less frequent than right or left atrial stimulation. The induction of atrial fibrillation was related to the atrial pressure and to the site of stimulation but not to the pacing rate or the prepacing heart rate. The prepacing heart rate, associated with failure to induce sustained atrial fibrillation, was higher than that associated with atrial fibrillation in 12 of 15 experiments (significantly in 6) and not significantly lower in 3 of 15. Atrial fibrillation lasting 1 minute or more was more frequently associated with simultaneous stimulation of both atria than of either atrium alone. Thus, an elevated atrial pressure may facilitate the induction of atrial fibrillation. The site of stimulation also plays an important role for both the induction and maintenance of atrial fibrillation in this model.en
heal.journalNamePacing Clin Electrophysiolen
heal.journalTypepeer-reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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