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Doctors & patients are saying about 'Beat Your A-Fib'...


"If I had [your book] 10 years ago, it would have saved me 8 years of hell.”

Roy Salmon, Patient, A-Fib Free,
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"This book is incredibly complete and easy-to-understand for anybody. I certainly recommend it for patients who want to know more about atrial fibrillation than what they will learn from doctors...."

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"Dear Steve, I saw a patient this morning with your book [in hand] and highlights throughout. She loves it and finds it very useful to help her in dealing with atrial fibrillation."

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"...masterful. You managed to combine an encyclopedic compilation of information with the simplicity of presentation that enhances the delivery of the information to the reader. This is not an easy thing to do, but you have been very, very successful at it."

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"Within the pages of Beat Your A-Fib, Dr. Steve Ryan, PhD, provides a comprehensive guide for persons seeking to find a cure for their Atrial Fibrillation."

Walter Kerwin, MD, Cedars-Sinai Medical Center, Los Angeles, CA


EKG signal

New Video: EKG of Actual Heart in Atrial Fibrillation

We’ve added a new video to our Library of Videos & Animations. A graphic display of actual heart in Atrial Fibrillation. How it could look to your doctor on an EKG/ECG monitor; (Your EKG may look different, but will be fast and erratic). Includes display of the changing heartbeat rate in the lower left.

For comparison, we’ve included a graphic comparing the tracing of a heart in normal sinus rhythm vs. a heart in A-Fib.

Share with you family and friends when you talk about your A-Fib. (:59 sec)  Go to video->

EKG tracing

How to Interpret an ECG Signal

A-Fib is fairly easy to diagnose using EKG. The ECG signal strip is a graphic tracing of the electrical activity of the heart.

An electrocardiogram, ECG (EKG), is a test used to measure the rate and regularity of heartbeats. To learn more, see our article, Understanding the EKG Signal.

Video: EKG of Heart in Atrial Fibrillation on Monitor

Graphic display of actual heart in Atrial Fibrillation. How it could look to your doctor on an EKG/ECG monitor; (Your EKG may look different, but will be fast and erratic). Notice the changing heartbeat rate in the lower left. Compare to normal ECG below.

Share with you family and friends when you talk about your A-Fib. (:59 sec) Posted by jason king, Published on Aug 24, 2017.

Graphic: ECG of Heart in Normal Heart Rhythm and in Atrial Fibrillation

In the case of Atrial Fibrillation, the consistent P waves are replaced by fibrillatory waves, which vary in amplitude, shape, and timing (compare the two illustrations below).

How to Interpret an ECG Signal

EKG signal components at A-Fib.com

EKG signal components

An electrocardiogram, ECG (EKG), is a test used to measure the rate and regularity of heartbeats, as well as the size and position of the chambers, the presence of any damage to the heart, and the effects of drugs or devices used to regulate the heart.

The ECG signal strip is a graphic tracing of the electrical activity of the heart. To learn more, see our article, Understanding the EKG Signal.

If you find any errors on this page, email us. Y Last updated: Friday, September 8, 2017

Return to Instructional A-Fib Videos and Animations

Understanding the EKG Signal

By Steve S. Ryan, PhD

Video: Cardiac Conduction System and its Relationship with ECG. Go to video.

An electrocardiogram, ECG (EKG), is a test used to measure the rate and regularity of heartbeats, as well as the size and position of the chambers, the presence of any damage to the heart, and the effects of drugs or devices used to regulate the heart.

The ECG signal strip is a graphic tracing of the electrical activity of the heart. It measures the length of time it takes for the initial impulse to fire at the Sinus Node and then ends in the contracting of the Ventricles.

Schematic diagram of normal sinus rhythm for a human heart as seen on ECG; Public Domain image;

Schematic diagram of normal sinus rhythm for a human heart as seen on ECG

The first upward pulse of the EKG signal, the P wave, is formed when the atria (the two upper chambers of the heart) contract to pump blood into the ventricles. In A-Fib you will see many “fibrillation” beats instead of one P wave.

The next large upward spike segment, the QRS Complex, is formed when the ventricles (the two lower chambers of the heart) are contracting to pump out blood.

The next section, the ST segment, measures the end of the contraction of the ventricles to the beginning of the rest period before the ventricles begin to contract for the next beat.

The next slight rising section, the T wave, measures the resting period of the ventricles.

ECG (EKG) Strip: Atrial Fibrillation

In the case of Atrial Fibrillation, the consistent P waves are replaced by fibrillatory waves, which vary in amplitude, shape, and timing (compare the two illustrations below).

ECG tracing of normal heart rhythm and heart in A-Fib; Copyright 2012 A-Fib, Inc.

© 2012 A-Fib, Inc.

ECG recorder: special graph Paper

The output of an ECG recorder is a graph (or sometimes several graphs, representing each of the leads) with time represented on the x-axis and voltage represented on the y-axis. A dedicated ECG machine would usually print onto graph paper which has a background pattern of 1mm squares (often in red or green), with bold divisions every 5 mm in both vertical and horizontal directions.

Diagram of electrocardiogram paper; Public Domain image

Diagram of electrocardiogram paper.

Interpreting a ECG strip involves counting the squares of the tracing. For example, by counting the squares of a heart in Normal Sinus Rhythm, you can calculate the heart rate.

To learn more about reading an ECG strip, see an excellent handout from the St. Petersburg College, School of Nursing, ‘EKG Interpretation: The Easy Rs‘.

Video: Cardiac Conduction System and its Relationship with ECG‬

Click for Video: Cardiac Conduction System

Video: Cardiac Conduction System and its Relationship with ECG‬

Animation with narration about the heart’s conduction system. Schematic diagram and explanation of normal sinus rhythm for a human heart as seen on ECG (3:34 min.)
References & Photo Credits for this article

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If you find any errors on this page, email us. Y Last updated: Tuesday, August 29, 2017

 

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