Related Experiment Video

Updated: Jun 22, 2026

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
08:10

Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation

Published on: July 20, 2022

Detection of atrial fibrillation using a modified microlife blood pressure monitor

Joseph Wiesel1, Lorenzo Fitzig, Yehuda Herschman

  • 1Department of Medicine, New York Hospital Queens, Flushing, New York, USA.

American Journal of Hypertension
|May 30, 2009
PubMed

Insights

This study shows an automatic blood pressure monitor can accurately detect atrial fibrillation (AF) with high sensitivity and specificity. Early detection of asymptomatic AF through home monitoring may prevent strokes.

Area of Science:

  • Cardiology
  • Medical Devices
  • Public Health

Background:

  • Hypertension is a significant risk factor for atrial fibrillation (AF) and AF-related stroke.
  • Asymptomatic AF can lead to stroke if undetected and untreated in at-risk individuals.

Purpose of the Study:

  • To evaluate the sensitivity and specificity of an automatic oscillometric sphygmomanometer for AF detection.
  • To assess the device's ability to reduce false positives from premature beats.

Main Methods:

  • 405 unselected outpatients underwent three sequential device readings and one electrocardiogram (EKG).
  • An algorithm was integrated into the sphygmomanometer for AF detection.

Main Results:

  • Single device readings showed 95% sensitivity and 86% specificity for AF detection.
  • Sequential readings improved detection to 97% sensitivity and 89% specificity.
  • The device demonstrated high specificity (97%) for patients in sinus rhythm.

Conclusions:

  • The automatic sphygmomanometer demonstrates high accuracy in detecting AF.
  • Home blood pressure monitoring with this device could facilitate early detection of asymptomatic AF, potentially preventing strokes.
Abstract

More Related Videos

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function05:03

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function

Published on: December 11, 2019

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation16:40

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation

Published on: February 28, 2012

Related Concept Videos

Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

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:
Equipments Used To Measure Blood Pressure01:30

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...
Pulse rhythm01:30

Pulse rhythm

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 muscle...
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
Assessment of blood pressure in brachial artery(one-step method)01:15

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

This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Assessment of blood pressure in brachial artery(two-step method)01:23

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...