预测败血症诱导的低血压患者的属性限制性对自由流动性策略
Pulakesh Upadhyaya1, Jeffrey Wang2, Daniel T Mathew2
1Department of Surgery, Duke School of Medicine, Durham, North Carolina.
Shock (Augusta, Ga.)
|December 1, 2024
概括
机器学习确定了毒引起的低血压中流体策略的关键预测因素. 患者的不同表型也得到了特征,有助于个性化治疗方法,以获得更好的结果.
科学领域:
- 临界护理医学 临界护理医学
- 医疗信息学 医疗信息学
- 机器学习在医学中的应用
背景情况:
- 败血症引起的低血压管理通常涉及静脉注射液体和血管压缩剂.
- 影响自由与限制性流体策略的患者特征需要进一步阐明.
- 机器学习可以发现预测因子和患者表型,用于在败血症中进行液体管理.
研究的目的:
- 确定关键预测因子,区分限制性与自由流体策略在败血症引起的低血压.
- 确定在不同患者表型中接收每个流体策略的可能性.
- 为了描述与败血症引起的低血压相关的患者表型.
主要方法:
- 对15292名患有败血症诱导的低血压患者 (2014-2021) 的回顾性观察研究.
- 监督机器学习 (XGBoost) 用于预测流体策略;无监督学习用于识别患者表型.
- 亚组分析包括肺炎,充血性心力衰竭 (CHF) 或慢性病 (CKD) 的患者.
主要成果:
- XGBoost模型在预测流体策略方面实现了0.84的AUC.
- 较差的氧化预测了限制性流体;较高的脉冲和BUN预测了自由的流体.
- 充血性心力衰竭,慢性病和肺炎预测了限制性流体策略. 确定了三个表型:轻度器官损伤,严重的低氧化,功能障碍.
结论:
- 在败血症引起的低血压中,限制性流体策略与自由流体策略的关键预测因素被确定.
- 与败血症诱导的低血压相关的不同患者表型的特征.
- 研究结果可以为败血症患者提供个性化流体管理策略.
相关概念视频
Heart Failure Drugs: Diuretics
340
Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
340
Rheumatic Heart Disease IV: Nursing Management
3
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...
3
Mitral Regurgitation IV: Nursing Management
2
Mitral regurgitation (MR) is a condition where the mitral valve does not close properly, leading to the backward flow of blood from the left ventricle into the left atrium during systole. This condition can arise from various causes, including rheumatic fever, infective endocarditis, or degenerative valve disease. Effective nursing management is crucial to optimizing patient outcomes and involves comprehensive assessment and targeted interventions.Comprehensive Patient AssessmentA detailed...
2
Pre-Procedural Guidelines for Assessing Blood Pressure
520
Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
520
Alterations in Blood Pressure
1.2K
Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...
1.2K
Fluid Movement Between Compartments
476
The force applied by fluids against a surface, known as hydrostatic pressure, initiates the transfer of fluid among different compartments. Within our blood vessels, the blood's hydrostatic pressure is a result of the heart's pumping action. At the arteriolar end of capillaries, hydrostatic pressure (capillary blood pressure) exceeds the opposing colloid osmotic pressure created primarily by plasma proteins like albumin. This discrepancy in pressure propels plasma and nutrients from the...
476


