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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.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

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 to...
Esophageal Achalasia01:27

Esophageal Achalasia

Esophageal achalasia is a chronic neurogenic disorder characterized by impaired relaxation of the lower esophageal sphincter (LES) and absent or ineffective peristalsis in the distal esophagus. This leads to a functional obstruction without a physical blockage, despite significant disruption of esophageal motility.EtiologyAchalasia is caused by degeneration of the myenteric (Auerbach's) plexus, specifically the loss of inhibitory ganglion cells that produce vasoactive intestinal peptide (VIP)...
Correlation between ECG and Cardiac Cycle01:25

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...
Esophageal Perforation-I: Introduction01:22

Esophageal Perforation-I: Introduction

Esophageal perforation is a severe medical condition characterized by a breach in the integrity of the esophageal wall. This breach can occur due to various factors such as trauma, medical procedures, or underlying diseases. When the esophageal wall is compromised, it allows food, fluids, and digestive juices into the chest cavity or adjacent structures, leading to potential complications and health risks.
The location of esophageal perforation can vary, occurring anywhere along the esophagus.

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Related Experiment Video

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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

Electrocardiographic changes during oesophagogastroscopy.

A Akere1, P O Akinwusi, M L Adeoti

  • 1Department of Medicine, College of Medicine, University of Ibadan/University College Hospital, Ibadan, Nigeria. adeakere@yahoo.co.uk

Nigerian Journal of Clinical Practice
|February 5, 2013
PubMed
Summary
This summary is machine-generated.

Electrocardiographic (ECG) changes during oesophagogastroduodenoscopy (EGD) are common, with tachycardia and ST-T wave abnormalities frequently observed. However, these ECG findings during EGD are generally not severe enough to require intervention.

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Area of Science:

  • Cardiology
  • Gastroenterology
  • Medical Procedures

Background:

  • Oesophagogastroduodenoscopy (EGD) is a common procedure with potential risks, particularly cardiovascular and respiratory complications in vulnerable patients.
  • Understanding electrocardiographic (ECG) changes during EGD is crucial for patient safety.
  • This study aimed to identify and assess the severity of ECG alterations during diagnostic EGD.

Purpose of the Study:

  • To determine the types of electrocardiographic (ECG) changes during diagnostic oesophagogastroduodenoscopy (EGD).
  • To evaluate the severity of these ECG changes at different procedural stages.
  • To assess the clinical significance of ECG abnormalities during EGD.

Main Methods:

  • A descriptive study was conducted at Ladoke Akintola University of Technology Teaching Hospital.
  • Consecutive patients undergoing diagnostic EGD were enrolled over a 3-month period.
  • ECG recordings were taken at baseline, post-premedication, during intubation, and post-procedure, with data analyzed using descriptive statistics.

Main Results:

  • Twenty-six patients (53.8% male, mean age 47.19 years) were studied.
  • Tachycardia increased throughout the procedure, observed in 65.4% of patients by the end.
  • Conduction abnormalities and premature ventricular complexes (PVCs) were noted, but ST-T wave changes were also present.

Conclusions:

  • Electrocardiographic abnormalities can occur during oesophagogastroduodenoscopy (EGD).
  • These observed ECG changes were generally not severe enough to necessitate specific interventions.
  • The findings suggest that diagnostic EGD can be safely performed with routine ECG monitoring.