Coronary Flow-Pressure Relationship Distal to Epicardial Stenosis
| Autor: | Kenji Takazawa, Naohisa Shindo, Nobuhiro Tanaka, Akira Yamashina, Kazutaka Amaya, Yuichi Kobori, Kazuhiro Takeda, Masaru Aikawa |
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| Rok vydání: | 2003 |
| Předmět: |
Male
Cardiac Catheterization medicine.medical_specialty medicine.medical_treatment Myocardial Infarction Blood Pressure Fractional flow reserve Coronary Angiography Microcirculation Coronary Restenosis Coronary circulation Risk Factors Coronary Circulation Internal medicine Humans Medicine Myocardial infarction Aged Cardiac catheterization business.industry Coronary Stenosis Coronary flow reserve General Medicine Middle Aged medicine.disease Myocardial Contraction Stenosis medicine.anatomical_structure Blood pressure Cardiology Feasibility Studies Female Cardiology and Cardiovascular Medicine business Blood Flow Velocity |
| Zdroj: | Circulation Journal. 67:525-529 |
| ISSN: | 1347-4820 1346-9843 |
| DOI: | 10.1253/circj.67.525 |
| Popis: | To assess the coronary flow velocity - pressure relationship distal to a stenosis, and to evaluate the influence of microvascular abnormalities on this relationship, coronary flow velocity and coronary pressure were measured simultaneously in 38 patients (42 vessels). The instantaneous peak coronary flow velocity was plotted against the simultaneous measured distal coronary pressure, and the slope of the relation in the phase of diastolic flow decrease was calculated as the flow - pressure slope index (FPSI) and the X-intercept of the slope was calculated as zero-flow pressure (Pzf). The slope of the curve increased from 2.0+/-2.6 to 4.5+/-4.1 (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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