DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Byung Gyu | ko |
dc.contributor.author | Cho, Sung Woo | ko |
dc.contributor.author | Lee, Hye Young | ko |
dc.contributor.author | Kim, Deok Hee | ko |
dc.contributor.author | Byun, Young Sup | ko |
dc.contributor.author | Goh, Choong Won | ko |
dc.contributor.author | Rhee, Kun Joo | ko |
dc.contributor.author | Kim, Byung Ok | ko |
dc.date.accessioned | 2016-09-06T08:57:44Z | - |
dc.date.available | 2016-09-06T08:57:44Z | - |
dc.date.created | 2016-08-04 | - |
dc.date.created | 2016-08-04 | - |
dc.date.created | 2016-08-04 | - |
dc.date.issued | 2015-08 | - |
dc.identifier.citation | JOURNAL OF ARRHYTHMIA, v.31, no.4, pp.196 - 200 | - |
dc.identifier.issn | 1880-4276 | - |
dc.identifier.uri | http://hdl.handle.net/10203/212427 | - |
dc.description.abstract | Background: Nitroglycerin (NTG) challenge during head-up tilt-table testing (HUTT) is often utilized to determine the etiology of unexplained vascular syncope. However, conflicting results concerning nitrate-induced hemodynamic changes during HUTT have been reported. The purpose of this study was to assess the determinants of presyncopal symptoms during NTG-stimulated HUTT. Methods: We evaluated 40 patients with suspected vasovagal syncope. Beat-to-beat changes in blood pressure, heart rate (HR), cardiac index (CI), and systemic vascular resistance (SVR) during HUTT were measured with thoracic impedance cardiography and a plethysmographic finger arterial pressure monitoring device. Results: None of the 40 patients complained of presyncopal symptoms during passive HUTT. However, after the administration of NTG 28 patients showed presyncopal symptoms (NTG+ group) and the remaining 12 patients did not (NTG- group). HR, CI, and the stroke index did not significantly differ between the two groups, whereas mean arterial pressure and SVR were significantly lower in the NTG+ group. Conclusions: Presyncopal symptoms during NTG-stimulated HUTT are SVR mediated, not cardiac output mediated. This study challenges the conventional idea of a decrease in cardiac output mediated by NTG as the overriding cause of presyncopal symptoms during HUTT. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Reduced systemic vascular resistance is the underlying hemodynamic mechanism in nitrate-stimulated vasovagal syncope during head-up tilt-table test | - |
dc.type | Article | - |
dc.identifier.scopusid | 2-s2.0-84938749581 | - |
dc.type.rims | ART | - |
dc.citation.volume | 31 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 196 | - |
dc.citation.endingpage | 200 | - |
dc.citation.publicationname | JOURNAL OF ARRHYTHMIA | - |
dc.identifier.doi | 10.1016/j.joa.2014.11.008 | - |
dc.contributor.nonIdAuthor | Kim, Byung Gyu | - |
dc.contributor.nonIdAuthor | Lee, Hye Young | - |
dc.contributor.nonIdAuthor | Kim, Deok Hee | - |
dc.contributor.nonIdAuthor | Byun, Young Sup | - |
dc.contributor.nonIdAuthor | Goh, Choong Won | - |
dc.contributor.nonIdAuthor | Rhee, Kun Joo | - |
dc.contributor.nonIdAuthor | Kim, Byung Ok | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Vasovagal syncope | - |
dc.subject.keywordAuthor | Head-up tilt-table test | - |
dc.subject.keywordAuthor | Nitroglycerin | - |
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