将透析剂量 (Kt) 调整为身体表面积 (BSA) 可能是一个更合乎逻辑的方法
Wei Liu1, Zhenguo Qiao2, Yan Xu1
1Department of Nephrology, Suzhou Ninth People's Hospital, Suzhou Ninth Hospital Affiliated to Soochow University, Suzhou, China.
PloS one
|October 7, 2024
概括
Kt/BSA比率提供了比Kt/V更准确的血液透析充足度衡量,特别是对于女性. 这种按人体表面积量化的剂量消除了透析有效性的性别差异.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 生物医学工程 生物医学工程
- 临床化学 临床化学
背景情况:
- 透析的充分性通常使用Kt/V比率进行评估,该比率是透析剂量 (Kt) 与尿素分布体积 (V) 的比例.
- 身体表面积 (BSA) 越来越被认为是比V更准确的代谢活动指标.
- 现有的方法可能无法完全捕捉不同患者人口统计学中的透析剂量要求.
研究的目的:
- 为了评估Kt/BSA比率的有效性,作为血液透析充分性的优越指标,与传统的Kt/V比率相比.
- 调查透析剂量和身体组成的性别差异.
- 为了确定BSA的透析剂量缩放是否消除了观察到的性别差异.
主要方法:
- 211名血液透析患者的队列中,Kt/V,Kt/BSA,身体成分 (通过生物阻抗) 和BSA (杜波伊斯公式) 确定.
- 使用V/BSA作为从Kt/V到Kt/BSA的转换因子.
- 进行了比较分析和线性回归,按性别分层.
主要成果:
- 平均Kt/V为1.50 (SD为0.28),女性显著高于此 (P<0.01).
- 在女性中,未调整的Kt较低 (P < 0.01),但对BSA (Kt/BSA) 的缩放消除了这一显著的性别差异 (P = 0.06).
- 女性的脂肪质量更高,肌肉质量百分比更低,而男性的V/BSA比率更高.
结论:
- 传统的Kt/V比可能低估了女性的血液透析需求.
- Kt/BSA比率提供了一个更公平的衡量透析剂量充足度的指标,不论性别.
- 在准确地定制血液透析处方方面,KT/BSA代表了潜在的重大进展.
相关概念视频
Renal Failure: Dose Adjustments
68
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...
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...
68
Hemodialysis III: Nursing Management
2
The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this...
2
Dialysis
610
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
610
Peritoneal Dialysis I: Introduction & Procedure
4
Peritoneal dialysis (PD) is a procedure that facilitates the exchange of solutes, waste products, electrolytes, and excess fluid between the blood in the peritoneal capillaries and a dialysis solution introduced into the peritoneal cavity.Principles of Peritoneal Dialysis (PD)Diffusion: Waste products such as urea and electrolytes move from high concentrations in the blood to low concentrations in the dialysate across the peritoneal membrane. This mechanism is driven by the concentration...
4
Rational Dosage Regimen: Maintenance Dose and Loading Dose
4.0K
A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
4.0K
Hemodialysis II: Procedure and Complications
2
DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
2


