Quantitative Effect of Low Coronary Pressure on Left Ventricular Performance

スポンサーリンク

概要

• 論文の詳細を見る

• Ventricular output curves (left ventricular output vs. left atrial pressure) were studied with coronary arterial pressure controlled at various subphysiological levels in anesthetized dogs. The coronary pressure was changed with a small screw clamp placed around the left main coronary artery, in which a tiny catheter was introduced for coronary pressure measurement. The aortic pressure and cardiac output were controlled at constant values independent of coronary pressure. At low coronary pressures, depression of the plateau and rightward shift of the ventricular output curves was observed. The effect was more marked as the set coronary pressure was lowered. It was concluded that the change in maximal cardiac output (plateau level of the output curve) is a sensitive index of the integrity of cardiac function and that reduction in coronary pressure during hypotensive states plays an important role in the development of vicious cycle of cardiac deterioration. Also observed in the experiment was a consistent correlation between electrocardiographic changes and alterations in cardiac function.

• International Heart Journal刊行会の論文

著者

• SUGIMOTO TSUNEAKI

  Department of Medicine, Division of Hypertension and Cardiorenal Disease, Dokkyo University School o

• SAGAWA Kiichi

  Department of Physiology and Biophysics, University of Mississippi Medical Center

• Guyton Arthur

  Department of Physiology and Biophysics, University of Mississippi Medical Center

• Sugimoto Tsuneaki

  Department Of Medicine Division Of Hypertension And Cardiorenal Disease Dokkyo University School Of

• SUGIMOTO Tsuneaki

  Department of Physiology and Biophysics, University of Mississippi Medical Center

関連論文

• ALTERED PHOSPHOLIPASE C ACTIVITY IN RENAL MEDULLA OF DOCA-SALT HYPERTENSIVE RATS
• BACKPROJECTION OF THE SUBTRACTION BODY SURFACE MAP ONTO THE EPICARDIUM USING INVERSE SOLUTION METHOD : Imaging Techniques : FREE COMMUNICATIONS (II) : PROCEEDINGS OF THE 49th ANNUAL SCIENTIFIC MEETING OF THE JAPANESE CIRCULATION SOCIETY
• -244-ELECTROPHYSIOLOGICAL EFFECTS OF DILTIAZEM IN MAN, PARTICULARLY IN THOSE WITH SINUS OR AV NODAL DYSFUNCTION : Cardiovascular Drugs : PROCEEDINGS OF THE 42nd ANNUAL MEETING OF THE JAPANESE CIRCULATION SOCIETY
• MECHANISM OF VENOUS CONGESTION IN SYSTEMIC AND PULMONARY CIRCULATORY SYSTEMS : Pulmonary circulation Peripheral circulation : FREE COMMUNICATIONS (Abstract) : 45 Annual Scientific Meeting, Japanese Circulation Society
• Quantitative Effect of Low Coronary Pressure on Left Ventricular Performance
• Effect of Maximal Work Load on Cardiac Function

スポンサーリンク