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Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration01:28

Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration

Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area. This equation is...

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四头肌强度,耐力和功率的参考方程:一个多中心研究.

Sophie Tanguay1, Didier Saey1, Sarah Marklund2

  • 1Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada.

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概括

开发了COPD患者四头肌功能参考方程. 这些方程显示了COPD患者的肌肉功能减少,并验证了临床测量.

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科学领域:

  • 肺部医学 肺部医学
  • 运动生理学 运动生理学
  • 生物统计学 生物统计学

背景情况:

  • 下肢肌肉功能评估对于COPD管理至关重要,但缺乏确定的参考值.
  • 这种缺陷阻碍了临床建议和对患者测量的准确解释.

研究的目的:

  • 在健康个体中开发四头肌强度,耐力和功率的参考方程.
  • 在慢性阻塞性肺病 (COPD) 患者中评估这些参考值的构造有效性.

主要方法:

  • 在158名健康人群和87名COPD患者中测量了四肢体的强度,耐力和功率.
  • 使用多重线性回归得出参考方程,包括年龄,性别,身高和BMI.
  • 通过将肌肉功能 (预测的%) 与COPD患者的6分钟步行测试 (6MWT) 和1分钟坐立测试 (1STS) 的表现相关联来评估构造有效性.

主要成果:

  • 参考方程解释了健康个体四头肌属性的50-70%的差异 (不包括异面耐力).
  • 与预测值相比,COPD患者的四头肌强度,耐力和功率显著降低.
  • 肌肉功能 (按预测的百分比) 和6MWT/1STS性能之间的相关性在0.28到0.49之间 (p<0.05),表明结构有效性.

结论:

  • 开发的参考方程为评估COPD四头肌功能提供了基础.
  • 这些发现证实了COPD患者下肢肌肉功能减少.
  • 建立的构造有效性支持这些COPD评估参考值的临床实用性.