Coronary Flow-Pressure Relationship Distal to Epicardial Stenosis
スポンサーリンク
概要
- 論文の詳細を見る
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 to4.5±4.1 (p<0.001) and the X-intercept decreased from 42±16 to 27±13mmHg (p<0.001) after papaverine injection. After successful coronary intervention, Pzf increased from 23±10 to 35±11 (p<0.01) and FPSI decreased from 6.8±5.1 to 3.5±1.8 (p<0.05). Pzf was higher in patients with an old myocardial infarction. It is feasible to assess the relationship between coronary flow and pressure distal to a stenosis in the clinical setting, and the relationship may provide additional information regarding coronary microcirculation. Microvascular abnormalities may play an important role in the coronary flow-pressure relationship distal to stenosis. (Circ J 2003; 67: 525-529)
- 社団法人日本循環器学会の論文
- 2003-05-20
著者
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YAMASHINA Akira
Second Department of Internal Medicine, Tokyo Medical University
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Takazawa Kenji
Division Of Cardiology Hachioji Medical Center Tokyo Medical University Department Of Cardiology Tok
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Yamashina Akira
Second Department Of Internal Medicine Tokyo Medical University
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Takeda Kazuhiro
Second Department Of Internal Medicine Tokyo Medical University
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Tanaka Nobuhiro
Division Of Cardiology Department Of Intenal Medicine Tokyo Medical University
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Tkazawa Kenji
Division Of Cardiology Hachioji Medical Center Tokyo Medical University
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Takazawa Kenji
Second Department Of Internal Medicine Tokyo Medical University
-
Tanaka Nobuhiro
Second Department of Internal Medicine, Tokyo Medical College
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Takazawa Kenji
Division Of Cardiology Hachioji Medical Center Tokyo Medical University
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Takazawa Kenji
Cardiology Of Hachioji Medical Center Tokyo Medical University
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SHINDO Naohisa
Second Department of Internal Medicine, Tokyo Medical University
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Shindoh Naohisa
Division Of Cardiology Department Of Intenal Medicine Tokyo Medical University
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Aikawa Masaru
Second Department of Internal Medicine, Tokyo Medical University
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Amaya Kazutaka
Second Department of Internal Medicine, Tokyo Medical University
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Kobori Yuichi
Second Department of Internal Medicine, Tokyo Medical University
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Tanaka Nobuhiro
2nd Department Of Internal Medicine Tokyo Medical University
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Tanaka Nobuhiro
Second Department Of Internal Medicine Tokyo Medical College Hospital
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Takazawa Kenji
Department Of Internal Medicine Tokyo Medical College Hospital
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Takazawa Kenji
The Second Department Of Internal Medicine Tokyo Medical College
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Aikawa Masaru
Second Department Of Internal Medicine Tokyo Medical University
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Kobori Yuichi
Second Department Of Internal Medicine Tokyo Medical University
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Shido Naohisa
Department Of Cardiology Tokyo Medical University
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Amaya Kazutaka
Second Department Of Internal Medicine Tokyo Medical University
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Tanaka Nobuhiro
Department Of Cardiology Tokyo Medical University
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Tanaka Nobuhiko
The Second Department Of Internal Medicine Tokyo Medical University
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Takazawa Kenji
Division Of Cardiology Hachioji Medical Center Tokyo Medical University Department Of Cardiology Tok
-
Takazawa Kenji
Division Of Cardiology Hachioji Medical Center Tokyo Medical University Department Of Cardiology Tok
-
Takeda Kazuhiro
The Second Department Of Internal Medicine Tokyo University
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Shindo Naohisa
Second Department Of Internal Medicine Tokyo Medical University
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