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相关概念视频

Factors Affecting Renal Clearance: Renal Impairment01:17

Factors Affecting Renal Clearance: Renal Impairment

99
Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
99
Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

95
In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
95
Determination of Renal Drug Clearance: Graphical and Midpoint Methods01:07

Determination of Renal Drug Clearance: Graphical and Midpoint Methods

135
Renal clearance, a crucial parameter in pharmacokinetics, can be determined using two different methods: the graphical method and the midpoint method. These methods provide insights into the rate of drug excretion by the kidneys and aid in assessing renal function.
The graphical method involves plotting the rate of drug excretion in urine against the plasma drug concentration. By analyzing the graph, the clearance can be calculated and obtained. Drugs rapidly excreted by the kidneys exhibit a...
135

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在部分切除术后,对新基线功能的实际预测.

Nityam Rathi1, Worapat Attawettayanon1,2, Akira Kazama1,3

  • 1Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.

Annals of surgical oncology
|November 25, 2023
PubMed
概括

一个简单的公式准确地预测了部分切除术 (PN) 后的新基线膜过率 (NBGFR). 这种方法,假设90%的GFR保存,与患者咨询的复杂模型一样有效.

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科学领域:

  • 腎臟病學 (nephrology) 是一種醫學專業.
  • 泌尿器科 泌尿器科 泌尿器科 泌尿器科
  • 手术瘤学手术瘤学

背景情况:

  • 部分切除术 (PN) 首选用于局部质,保持功能.
  • 准确预测PN后球透率 (GFR) 对于患者咨询至关重要,特别是对于慢性病患者.
  • 现有的GFR保存预测方法包括主观接触面积 (CSA) 和直接测量,以及新的复杂算法.

研究的目的:

  • 将一个简单的NBGFR预测公式 (NBGFR = 0.90 × Pre-PN GFR) 与复杂的多变量算法进行比较.
  • 评估预测细胞体积保存和PN后NBGFR的准确性.

主要方法:

  • 对631名接受PN治疗的患者进行分析,用于局部质,并提供GFR数据.
  • NBGFR被定义为PN后3-12个月测量的GFR.
  • 使用相关系数 (r) 和平均平方误差 (MSE) 评估预测准确度.

主要成果:

  • 简单的公式 (90%的GFR保存) 与复杂的多变量模型相比,显示了相当的相关系数 (r).
  • 拟议的简单公式在预测PN后NBGFR时表现出最小的平均平方误差 (MSE).
  • 这表明在典型的PN后,功能损失最小 (约10%).

结论:

  • 一个简单的公式,假设90%的GFR保存,与预测PN后NBGFR的复杂算法一样有效.
  • 这种可预测性很可能是由于手术前GFR的强烈影响和PN期间的最小功能损失.
  • 这种实用配方可以在术前咨询中显著帮助,以期在术后预期的功能结果.