用生物信号波形预测手术内低血压的机器学习方法
Jae-Geum Shim1, Wonhyuck Yoon2, Sang Jun Lee3
1Department of Anesthesiology and Pain Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea.
Medicina (Kaunas, Lithuania)
|November 27, 2025
概括
这项研究开发了机器和深度学习模型,以使用患者生物信号和临床数据预测手术内低血压 (IOH),实现高精度. 这些人工智能模型旨在实现手术室的实时IOH预测,减少患者的并发症.
科学领域:
- 麻醉学 麻醉学
- 人工智能的人工智能
- 医疗信息学 医疗信息学
背景情况:
- 术内低血压 (IOH) 是与不良术后结果相关的关键因素,包括心肌梗塞,急性损伤和死亡率.
- 预测和预防IOH对于改善非心脏手术期间的患者安全至关重要.
研究的目的:
- 开发和验证机器学习 (ML) 和深度学习 (DL) 模型,用于预测手术内低血压.
- 利用手术内生物信号和个性化临床信息的组合来准确预测IOH.
主要方法:
- 一项使用VitalDB开放数据集的回顾性观察性研究,包括2611名接受非心脏手术的患者.
- 开发和验证ML (渐变增强机) 和DL (CNN-RNN) 模型,使用四种波形 (动脉血压,心电图,PPG,脑图) 和临床数据.
- 在低血压事件发生前5分钟评估模型性能.
主要成果:
- 梯度增强机和混合CNN-RNN模型都实现了0.94.94的接收器操作特征曲线 (AUROC) 下的高面积.
- 这些模型显示出强大的预测准确度,预测IOH的整体准确度为0.88.
- 这些模型使用波形数据和临床共变量成功预测了IOH.
结论:
- 经过验证的ML和DL模型可以有效地使用生物信号和临床数据预测手术内低血压.
- 这些预测模型有望在手术室实时检测IOH.
- 预计该研究的结果将有助于减少IOH的发病率和相关的患者发病率.
相关概念视频
01:30Equipments Used To Measure Blood Pressure
3.0K
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...
3.0K
01:28Special considerations while measuring blood pressure
1.1K
When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
1.1K
01:19Assessing Blood pressure using a doppler ultrasound
2.3K
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:
2.3K
01:30Pulse rhythm
1.3K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.3K
01:28Cardiomyopathy VII: Pre and Post Operative Nursing Management
264
Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...
264