V2EX lusitropy

Lusitropy

释义 Definition

Lusitropy(心脏生理学术语):指心肌舒张/放松能力,尤其是心室在舒张期的放松速度与程度;常用于讨论“舒张功能”。(除这一专业含义外,日常英语中很少使用。)

发音 Pronunciation (IPA)

/lustrpi/

例句 Examples

Lusitropy is important for healthy diastolic filling.
心肌舒张性对健康的舒张期充盈很重要。

Beta-adrenergic stimulation can improve lusitropy by accelerating calcium reuptake in cardiac muscle, which enhances ventricular relaxation.
β-肾上腺素能刺激可通过加速心肌细胞对钙离子的回收来改善心肌舒张性,从而增强心室放松。

词源 Etymology

词根来自拉丁语 lūsus(常被解释为“放松/舒张”相关概念,在心脏生理语境中引申为“舒张性”)+ 后缀 -tropy(源自希腊语 tropos,意为“转向/变化”,在生理学中常表示“对功能状态的改变/调节”)。因此 lusitropy 可理解为“与(心肌)放松相关的功能变化/调节”。

相关词 Related Words

文学与著作 Literary Works

  • Braunwald’s Heart Disease: A Textbook of Cardiovascular Medicine(《布劳恩瓦尔德心脏病学》)
  • Guyton and Hall Textbook of Medical Physiology(《盖顿与霍尔医学生理学》)
  • Circulation(期刊《循环》)与 Journal of the American College of Cardiology (JACC) 等心血管期刊的舒张功能研究文章中常见该词
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