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Related Concept Videos

Electrocardiogram01:29

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.
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Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

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Chronic Intermittent Ethanol Vapor Exposure Paired with Two-Bottle Choice to Model Alcohol Use Disorder
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Published on: June 23, 2023

ECG changes in patients with acute ethanol intoxication.

Willy Aasebø1, Jan Erikssen, Jørgen Jonsbu

  • 1Medical Department, Akershus University Hospital, Lørenskog, Norway. Willy.Aaseboe@rikshospitalet.no

Scandinavian Cardiovascular Journal : SCJ
|April 25, 2007
PubMed
Summary

High ethanol concentrations prolong ECG intervals like the P wave and QTc, potentially increasing arrhythmia risk. This study assessed electrocardiogram (ECG) changes in acute alcohol intoxication.

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Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus
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Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus

Published on: April 5, 2011

Area of Science:

  • Cardiology
  • Toxicology
  • Medical Research

Background:

  • Acute ethanol intoxication is a common clinical presentation.
  • High ethanol levels can affect cardiac function.
  • Electrocardiogram (ECG) changes may indicate cardiac risk.

Purpose of the Study:

  • To evaluate the impact of ethanol on ECG parameters.
  • To determine if ethanol concentration correlates with specific ECG changes.
  • To assess the potential link between ethanol-induced ECG alterations and cardiac arrhythmias.

Main Methods:

  • Studied 84 patients with acute ethanol intoxication.
  • Recorded resting ECGs and measured serum osmolality as a proxy for ethanol levels.
  • Compared ECGs of intoxicated patients with a control group and re-evaluated some patients at discharge.

Main Results:

  • Patients with high ethanol levels showed prolonged P wave and QTc intervals compared to controls.
  • Significant increases in P wave, PR, QRS, and QTc intervals were observed at high ethanol concentrations versus discharge levels.
  • Statistical significance (p<0.0001) confirmed these prolonged intervals.

Conclusions:

  • Ethanol, particularly at high concentrations, induces significant ECG changes.
  • These ECG alterations, including prolonged intervals, may signify an elevated risk of cardiac arrhythmias.
  • Further research is warranted to fully understand the proarrhythmic potential of ethanol.