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Pulse rhythm

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...

Special considerations while measuring pulse

Special considerations while measuring pulse

Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:

Dysrhythmias II: Classification of Tachyarrhythmias

Dysrhythmias II: Classification of Tachyarrhythmias

Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...

Correlation between ECG and Cardiac Cycle

Correlation between ECG and Cardiac Cycle

The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...

Electrocardiogram

Electrocardiogram

An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...

Pulse

Pulse

The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls between...

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Related Experiment Video

Updated: May 23, 2026

Semi-automated Optical Heartbeat Analysis of Small Hearts

Semi-automated Optical Heartbeat Analysis of Small Hearts

Published on: September 16, 2009

Time-based compression and classification of heartbeats.

Alexander Singh Alvarado¹, Choudur Lakshminarayan, José C Principe

¹Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA. asingh@cnel.ufl.edu

IEEE Transactions on Bio-Medical Engineering

|March 29, 2012

Summary

Continuous wireless electrocardiogram (ECG) monitoring for real-time diagnostics is enabled by a novel method combining heartbeat compression and analysis. This approach efficiently processes ECG signals, preserving key features for accurate arrhythmia detection.

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Area of Science:

Biomedical Engineering
Signal Processing
Cardiology

Background:

Electrocardiograms (ECG) are vital for diagnosing cardiac irregularities.
Continuous monitoring is essential for detecting evolving heart conditions.
Wireless ECG devices face limitations in area, power, bandwidth, and resolution.

Purpose of the Study:

To propose a methodology for real-time diagnostics using continuous wireless ECG monitoring.
To develop a combined compression and analysis approach for heartbeats.
To overcome the constraints of current wireless ECG recording devices.

Main Methods:

Utilizing a time-based integrate and fire sampler for signal encoding.
Performing diagnostics directly on compressed samples, eliminating signal reconstruction.
Extracting simple features from ECG signals for heartbeat classification.

Main Results:

The proposed scheme offers efficient hardware implementation and compressed ECG representation.
Discriminative features of ECG signals are preserved.
Heartbeat classification accuracy for normal and irregular heartbeats (arrhythmia) is comparable to existing literature.

Conclusions:

The developed methodology enables efficient, real-time diagnostics from wireless ECG data.
The approach provides a compressed ECG representation suitable for continuous monitoring.
This technique offers a viable solution for improving cardiac function monitoring and arrhythmia detection.