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Errors occurring during blood pressure monitoring

Errors occurring during blood pressure monitoring

Blood pressure monitoring is a crucial clinical procedure in diagnosing and managing various cardiovascular conditions. Despite its significance, the accuracy of blood pressure measurements can be compromised by multiple factors, potentially leading to either falsely high or low readings. These inaccuracies are critical as they can significantly impact patient care. So, it is vital to understand these challenges deeply and adopt strategic approaches to minimize errors.
Several factors...

Pre-Procedural Guidelines for Assessing Blood Pressure

Pre-Procedural Guidelines for Assessing Blood Pressure

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...

Assessment of blood pressure in brachial artery(two-step method)

Assessment of blood pressure in brachial artery(two-step method)

Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...

Special considerations while measuring blood pressure

Special considerations while measuring blood pressure

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.

Equipments Used To Measure Blood Pressure

Equipments Used To Measure Blood Pressure

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...

Sites for measruring blood pressure

Sites for measruring blood pressure

Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement

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Updated: May 25, 2025

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Improved Confidence-Interval Estimations Using Uncertainty Measure and Weighted Feature Decisions for Cuff-Less

Soojeong Lee¹, Mugahed A Al-Antari², Gyanendra Prasad Joshi³

¹Department of Computer Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea.

Bioengineering (Basel, Switzerland)

|February 26, 2025

Summary

This summary is machine-generated.

This study enhances cuff-less blood pressure (BP) monitoring by improving confidence interval (CI) estimation. New methods using individual uncertainty and weighted features provide more accurate and reliable BP measurements.

Keywords:

Gaussian processes regression confidence intervals cuff-less blood-pressure estimation gradient boosting algorithm uncertainty

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Published on: May 3, 2018

Area of Science:

Biomedical Engineering
Medical Devices
Health Informatics

Background:

Cuff-less blood pressure (BP) monitoring offers a convenient alternative to traditional methods.
Existing cuff-less BP estimation methods often yield wide confidence intervals (CIs), limiting their clinical utility.
Accurate and reliable BP estimation requires robust uncertainty quantification and feature selection.

Purpose of the Study:

To develop an improved method for confidence-interval (CI) estimation in cuff-less blood pressure (BP) measurement.
To enhance the accuracy and reliability of cuff-less BP estimation using individual uncertainty measures and weighted feature decisions.
To validate the proposed method against existing techniques for cuff-less BP monitoring.

Main Methods:

Gaussian process regression (GPR) was employed to obtain uncertainty measures for BP estimates.
Bootstrap and uncertainty methods were applied to GPR-derived cuff-less BP estimates for improved individual CI estimation.
Weighted feature decisions, combining GPR and gradient boosting algorithms (GBA), were utilized to identify highly influential features for BP estimation.

Main Results:

The proposed method demonstrated a standard deviation of mean error of 2.94 mmHg for systolic blood pressure (SBP) and 1.50 mmHg for diastolic blood pressure (DBP).
Mean absolute errors for SBP and DBP were 1.46 mmHg and 0.69 mmHg, respectively, using weighted feature determination with GPR and GBA.
BP estimates from test samples for nearly all subjects fell within the calculated confidence intervals, indicating high reliability.

Conclusions:

The developed method significantly improves CI estimation for cuff-less BP monitoring.
Combining GPR with weighted feature decisions using GBA enhances the accuracy and reliability of cuff-less BP estimation.
The findings suggest a promising advancement in non-invasive, continuous blood pressure monitoring technology.