内科学 Flashcards

1
Q

Kussmaul征

A

吸气时颈静脉更明显扩张

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2
Q

Kussmaul征机制

A

心包缩窄使心室舒张期扩张受阻,心室舒张期充盈减少,使心搏量下降。吸气时周围静脉回流增多而已缩窄的心包使心室失去适应性扩张的能力,致静脉压增高,吸气时颈静脉明显扩张,称为Kussmaul征。主要见于缩窄性心包炎。

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