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Kussmaul's sign : ウィキペディア英語版 | Kussmaul's sign
Kussmaul sign is a paradoxical rise in jugular venous pressure (JVP) on inspiration. It can be seen in some forms of heart disease and is usually indicative of limited right ventricular filling due to right heart failure. ==Pathophysiology== Ordinarily the JVP falls with inspiration due to reduced pressure in the expanding thoracic cavity and the increased volume afforded to right ventricular expansion during diastole. Kussmaul sign suggests impaired filling of the right ventricle due to either fluid in the pericardial space or a poorly compliant myocardium or pericardium. This impaired filling causes the increased blood flow to back up into the venous system, causing the jugular vein distension (JVD) and is seen clinically in the external jugular veins becoming more readily visible.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Kussmaul's sign」の詳細全文を読む
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