转肺热稀释参数在预测在接受连续脏替代疗法的重症监护患者的血液动力学不稳定性的价值
Cagla Sena Keser1, Mete Erdemir2, Mahmut Yilmaz3
1Department of Internal Medicine, Gulhane Training and Research Hospital, Ankara, Türkiye.
BMC nephrology
|December 20, 2025
概括
连续置疗法 (CRRT) 期间的血液动力学不稳定性由低心脏指数和高平均动脉压预测. 这些发现有助于识别急性损伤 (AKI) 高风险患者.
科学领域:
- 关键护理医学 关键护理医学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 心血管生理学心血管生理学
背景情况:
- 与脏替代疗法 (HIRRT) 相关的血液动力学不稳定性是重症急性损伤 (AKI) 患者接受连续脏替代疗法 (CRRT) 的关键并发症.
- 由于心脏输出和全身血管抵抗之间的复杂相互作用,HIRRT显著增加了死亡风险.
- 确定HIRRT的早期预测参数对于临床管理至关重要.
研究的目的:
- 在接受连续脏替代疗法 (CRRT) 的重症患者中,确定与脏替代疗法 (HIRRT) 相关的血液动力学不稳定性的早期和可靠的预测参数.
- 调查基线血液动力学参数与HIRRT的发展之间的关联.
主要方法:
- 一项前性,观察性队列研究,涉及36名接受CRRT与侵入性血液动力学监测 (PiCCO装置) 的患者.
- 记录了血液动力学参数,并通过在10-15分钟内特定的血压下降来定义HIRRT.
- 统计分析包括曼·惠特尼U测试,奇方测试,后勤回归和ROC曲线分析.
主要成果:
- HIRRT发生在55.5%的患者中,通常在CRRT的第一小时内.
- HIRRT组表现出显著较低的心脏指数 (CI) 和更高的全身血管阻力指数 (SVRI).
- 多变量分析确定了低CI (p=0.018) 和高平均动脉压 (p=0.031) 作为HIRRT的独立预测因素. 最优的截止值是CI 2.61 L/min/m2和MAP 78 mmHg.
结论:
- 低基线心脏指数和升高的平均动脉压是CRRT重病AKI患者中HIRRT的独立预测指标.
- 这些参数,加上血管调节的改变,可能表明血液动力学压力管理能力下降.
- 这些发现支持高风险患者的个性化管理策略,需要在更大规模的研究中进一步验证.
相关概念视频
01:30Continuous Renal Replacement Therapy
735
Continuous Renal Replacement Therapy, also known as CRRT, is a procedural treatment for acute kidney injury (AKI) that gradually removes uremic toxins and fluids while maintaining acid-base balance and stabilizing electrolytes. It is particularly useful for hemodynamically unstable patients. Unlike intermittent hemodialysis, which is faster, CRRT provides a gentler approach over 24 hours, closely mimicking the function of natural kidneys. However, CRRT is not ideal for patients with...
735
01:26Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy
163
Continuous Renal Replacement Therapy (CRRT) is an essential intervention for patients experiencing severe kidney dysfunction. This therapy offers a continuous mechanism for removing fluids and toxins from the bloodstream, leveraging the patient’s blood pressure to facilitate filtration through a specialized filter. This method contrasts with intermittent dialysis, providing a gentler and more consistent removal of waste products and excess fluid, which is particularly beneficial in...
163
01:20Acute Kidney Injury V: Interprofessional Care
277
Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...
277
01:25Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant
192
In patients with renal disease, dosage adjustments are necessary to maintain therapeutic plasma drug concentrations and prevent toxicity or subtherapeutic exposure. Renal impairment alters drug pharmacokinetics, especially in conditions like uremia, where changes such as prolonged elimination half-life and altered apparent volume of distribution can significantly affect drug disposition. These changes require careful modification of the dosing regimen to achieve the desired clinical...
192
01:11Renal Failure: Dose Adjustments
404
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...
404
01:20Rheumatic Heart Disease IV: Nursing Management
247
AssessmentA comprehensive assessment is essential in managing a patient with rheumatic heart disease (RHD). Begin with obtaining a detailed medical history, including recent streptococcal infections, a history of rheumatic fever, or previously diagnosed rheumatic heart disease. Assess the patient for symptoms such as fever, chest pain, widespread joint pain (arthralgia), tachycardia, pericardial friction rub, muffled heart sounds, heart murmurs, peripheral edema, subcutaneous nodules, and...
247