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Related Concept Videos

Special considerations while measuring blood pressure01:28

Special considerations while measuring blood pressure

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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.
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Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

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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:
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Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

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Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
48
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

1.5K
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...
1.5K
Pre-Procedural Guidelines for Assessing Blood Pressure01:10

Pre-Procedural Guidelines for Assessing Blood Pressure

628
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...
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Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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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...
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Updated: Sep 14, 2025

Asthma Detection Research Based on Voice Signal Processing and Machine Learning
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Hypertension Screening Using Acoustic Analysis and Machine Learning of Random Speech Samples: A Feasibility Study.

Behrad TaghiBeyglou1,2,3, Jaycee Kaufman3, Yan Fossat3,4

  • 1Institute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada.

Digital Biomarkers
|July 24, 2025
PubMed
Summary
This summary is machine-generated.

This study explored using speech analysis for hypertension screening, offering a potential accessible alternative to traditional blood pressure cuffs. The method showed promising accuracy, especially for females, in identifying individuals with elevated systolic and diastolic pressure.

Keywords:
Digital biomarkersHypertensionMachine learningSpeechVocal biomarker

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Speech Processing

Background:

  • Hypertension is a major risk factor for cardiovascular diseases.
  • Early detection and treatment are crucial for managing hypertension.
  • Cuff-based blood pressure measurement, while accurate, faces accessibility challenges in remote areas.

Purpose of the Study:

  • To investigate the feasibility of using overt speech for hypertension screening.
  • To evaluate speech analysis as an accessible alternative to traditional blood pressure monitoring.

Main Methods:

  • Collected speech recordings from 573 participants.
  • Extracted acoustic features (temporal, spectral, nonlinear) using machine learning models.
  • Evaluated model performance using leave-one-subject-out cross-validation.

Main Results:

  • Achieved balanced accuracy (BACC) of 61% (males) and 70% (females) under relaxed hypertension criteria (SBP ≥135 OR DBP ≥85).
  • Achieved BACC of 71% (males) and 78% (females) under stricter ESH guidelines (SBP ≥140 OR DBP ≥90).

Conclusions:

  • Overt speech analysis shows potential for hypertension screening.
  • This acoustic approach could improve accessibility to hypertension detection.