纵向机器学习模型用于预测心力衰竭患者的缩血压
Roya Najafi-Vosough1, Javad Faradmal1,2, Seyed Kianoosh Hosseini3
1Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
Journal of preventive medicine and hygiene
|September 1, 2023
概括
机器学习,特别是MLS-SVR,有效地预测心力衰竭 (HF) 患者的缩血压 (SBP),优于传统模型. 关键预测因素包括高血压史,BMI,和甘油三.
科学领域:
- 心脏病学 心脏病学
- 医疗信息学 医疗信息学
- 数据科学数据科学数据科学
背景情况:
- 系统性血压 (SBP) 是心力衰竭 (HF) 患者的关键预后指标,与死亡率和再接收风险直接相关.
- 有效的血压管理对于优化高血压患者的治疗结果至关重要.
研究的目的:
- 在HF患者中随着时间的推移确定与SBP波动相关的显著变量.
- 为了比较经典 (线性混合效应模型 - LMM) 和机器学习 (混合效应最小平方支向量回归 - MLS-SVR) 模型对SBP的预测性能.
主要方法:
- 一项回顾性队列研究分析了2015年10月至2019年7月期间住院的483名HF患者的数据.
- 使用LMM和MLS-SVR进行SBP预测,模型有效性通过平均绝对误差和根平均平方误差进行评估.
主要成果:
- LMM确定了性别,BMI,,时间和高血压史作为影响SBP变化的重要因素 (P <0.05).
- MLS-SVR确定了高血压史,,BMI和甘油三水平作为SBP前四大预测因素.
- 在训练和测试数据集中,MLS-SVR在LMM上表现优越.
结论:
- 该MLS-SVR模型显示承诺作为一个强大的替代传统的纵向模型预测SBP在HF患者.
- 使用先进的机器学习技术准确的SBP预测可以帮助个性化HF管理策略.
更多相关视频
04:05Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis
Published on: June 30, 2023
1.9K
09:20Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
Published on: February 13, 2021
6.5K
相关概念视频
01:29Heart Failure II: Pathophysiology
15
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
15
01:30Heart Failure IV: Classification and Diagnostic Evaluation
19
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
19
01:17Measurement of Blood Pressure
1.0K
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
1.0K
01:19Assessing Blood pressure using a doppler ultrasound
1.4K
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:
1.4K
01:17Pathophysiology of Heart Failure
1.6K
Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
1.6K
01:30Equipments Used To Measure Blood Pressure
1.1K
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
1.1K