大动脉脉冲波速和细胞外水膨胀在血液透析患者中
Roohi Chhabra1, Andrew Davenport1
1UCL Centre for Kidney & Bladder Health, Royal Free Hospital, University College London, London, UK.
Artificial organs
|May 7, 2025
概括
通过生物阻抗测量的体积过载与血液透析患者的动脉硬度 (aPWV) 的增加有关. 改善流体管理可能会降低这一群体的心血管风险.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 心血管医学 心血管医学
- 生物医学工程 生物医学工程
背景情况:
- 通过脉冲波速度 (PWV) 测量的动脉硬是接受血液透析的患者心血管死亡的重要风险因素.
- 在这个患者群体中,体积过载和动脉硬度增加 (aPWV) 之间的关系仍然是正在进行的研究和辩论的主题.
研究的目的:
- 研究在接受血液透析的患者中体积过载和动脉硬 (aPWV) 之间的关联.
- 为了确定细胞外水与全体水 (ECW/TBW) 的比率是否与这个人群中的aPWV相关.
主要方法:
- 大动脉PWV (aPWV) 在常规透析期间测量血液透析患者.
- 细胞外水/总体水 (ECW/TBW) 的比率同时使用多频生物阻抗分析进行测量.
主要成果:
- 总共研究了102名患者,平均aPWV为10.1 ± 2.5 m/s.
- 较高的aPWV (≥10 m/s) 与年龄较大和较高的ECW/TBW比率 (p < 0.001) 有显著的关联.
- 多变量分析证实,即使对年龄进行调整 (OR 1.74;p=0.004),ECW/TBW仍然与升高的aPWV独立相关.
结论:
- 这项研究表明,通过生物阻抗评估的体积过载和血液透析患者的动脉硬 (aPWV) 之间存在显著的关联.
- 有效的体积管理对于减轻血液透析患者心血管风险至关重要.
相关概念视频
Assessing Blood pressure using a doppler ultrasound
1.1K
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
1.1K
Regulation of Water Output
202
The human body predominantly expels water through the urinary system. On average, an individual generates around 1.5 liters of urine each day. This amount can fluctuate based on how well a person is hydrated, but a critical minimum quantity of urine must be produced to ensure the body's proper functioning. Daily, the kidneys remove 600 to 1200 milliosmoles of dissolved substances, effectively excreting excess minerals and water-soluble toxins such as creatinine, urea, and uric acid from the...
202
Dialysis
226
Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
226
Pulse
384
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
The pulse serves as a clinical...
384
Assessment of the Cardiovascular System III: Palpation
135
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
135
Hormonal Regulation of Blood Pressure
2.2K
Endocrinal or hormonal intervention in the cardiovascular system is predominantly exerted by the catecholamines - epinephrine and norepinephrine, as well as a slew of hormones that interact with renal function to modulate blood volume.
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction...
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction...
2.2K


