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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

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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...
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Assessment of apical pulse01:17

Assessment of apical pulse

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Assessing the Apical Pulse
Assessing the apical pulse is a critical nursing procedure, particularly indicated for:
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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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Patch Clamp01:18

Patch Clamp

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Many fundamental cell functions such as muscle contraction and nerve transmission rely on the electrical signals produced by the movement of positively and negatively charged ions across the cell membrane. One competent method to record current flowing across the whole cell or single ion channel is the patch-clamp technique.
In this method, a glass micropipette containing electrolyte solution is tightly sealed against a small portion of the cell membrane. As a result, a patch of the cell...
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Assessment of the Cardiovascular System IV: Auscultation01:25

Assessment of the Cardiovascular System IV: Auscultation

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Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
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Heart Sounds01:15

Heart Sounds

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Heart sounds are generated by the turbulence in blood flow due to the closing of heart valves. These sounds are best perceived slightly away from the valves, where the blood flow disseminates the sound.
Auscultation is the process of listening to these internal body sounds using a stethoscope. The heart produces four types of sounds, but only two—S1 and S2—can usually be heard with a stethoscope.
S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V)...
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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
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Cloud-Connected Patch-Worn Auscultation Device for Chest Sound Monitoring.

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    This summary is machine-generated.

    This study introduces a novel wearable device for heart sound recording, addressing limitations of current wearable electrocardiograms (ECGs) for comprehensive cardiac monitoring. The system offers high-fidelity auscultation data for improved heart disease diagnosis.

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    Area of Science:

    • Biomedical Engineering
    • Cardiology
    • Wearable Technology

    Background:

    • Wearable electrocardiograms (ECGs) are popular for personal heart monitoring but lack diagnostic and structural function capabilities.
    • Cardiac auscultation is a crucial diagnostic tool for physicians, yet lacks convenient wearable solutions.

    Purpose of the Study:

    • To develop and investigate a novel wearable system for user-initiated chest sound recordings.
    • To overcome the limitations of existing wearable cardiac monitoring technologies.

    Main Methods:

    • A wearable device for 10-second chest-sound recordings using Bluetooth-Low-Energy transmission.
    • An innovative package design for inherent noise reduction and high signal-to-noise ratio.
    • System validation on healthy individuals against calibrated ECG equipment for signal capture fidelity analysis.

    Main Results:

    • The developed system enables convenient, user-initiated cardiac auscultation recordings.
    • The device design ensures a high signal-to-noise ratio, crucial for diagnostic accuracy.
    • Initial testing on healthy individuals demonstrates system responsiveness and signal fidelity.

    Conclusions:

    • The proposed wearable auscultation system shows promise for enhancing cardiac monitoring beyond ECG capabilities.
    • This technology could provide physicians with a convenient and effective tool for heart disease diagnosis and monitoring.
    • Further investigation is warranted to fully assess the clinical utility of this wearable cardiac sound recording system.