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Related Concept Videos

Electrocardiogram01:29

Electrocardiogram

9.1K
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...
9.1K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

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Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
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ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

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An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
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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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Related Experiment Video

Updated: Apr 23, 2026

Application of an Amplitude-integrated EEG Monitor Cerebral Function Monitor to Neonates
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Application of an Amplitude-integrated EEG Monitor Cerebral Function Monitor to Neonates

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Rationale and objectives for ECG screening in infancy.

J Philip Saul1, Peter J Schwartz2, Michael J Ackerman3

  • 1Department of Pediatrics, Nationwide Children's Hospital, The Ohio State University, Columbus, Ohio.

Heart Rhythm
|September 21, 2014
PubMed
Summary

Electrocardiogram (ECG) screening for Long QT syndrome (LQTS) in newborns is recommended. This simple test can identify a treatable cause of sudden cardiac death in infants and children.

Keywords:
ECG screeningInfantsLong QT syndromeSudden cardiac death

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Area of Science:

  • Cardiology
  • Genetics
  • Pediatrics

Background:

  • Sudden cardiac death (SCD) screening in children is controversial.
  • Long QT syndrome (LQTS) is a significant cause of SCD in infants and children.
  • Divergent expert opinions exist regarding ECG screening for pediatric SCD risk.

Purpose of the Study:

  • To provide an unbiased review of scientific and policy issues for ECG screening in infants and children.
  • To build consensus on the merits of ECG screening for conditions like LQTS.
  • To inform parents about LQTS as a diagnosable and treatable condition.

Main Methods:

  • Review of available scientific facts and policy considerations.
  • Evaluation of LQTS prevalence, ECG diagnostic feasibility, and treatment availability.
  • Assessment of neonatal screening cost-effectiveness and false positive rates.

Main Results:

  • LQTS affects approximately 1 in 2000 births and is linked to 10% of SIDS cases.
  • ECG screening is feasible, enabling genetic testing and cascade screening in families.
  • Neonatal screening with a QTc cutoff of 460 ms has a low false positive rate (~1 in 1000 births).

Conclusions:

  • ECG screening for LQTS in newborns is medically and societally important.
  • Parents should be informed about LQTS, its prevalence, and diagnostic potential via ECG.
  • Early identification through ECG screening facilitates timely treatment and prevention of SCD.