Related Experiment Video

Updated: Sep 30, 2026

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

Abolition of electrocardiographic pattern of left ventricular aneurysm by posterior myocardial infarction

R Lim1, D T Wilson

  • 1Department of Cardiology, St Bartholomew's Hospital, London.

The British Journal of Clinical Practice
|August 1, 1990
PubMed

Insights

A patient

Area of Science:

  • Cardiology
  • Medical Diagnostics

Background:

  • Gastrointestinal symptoms can mimic cardiac events.
  • Left ventricular aneurysm can alter electrocardiogram (ECG) patterns.

Observation:

  • A patient presented with significant gastrointestinal symptoms.
  • Electrocardiographic changes associated with acute posterior myocardial infarction were observed.

Findings:

  • New ECG findings of true posterior myocardial infarction masked a pre-existing left ventricular aneurysm pattern.
  • This ECG phenomenon, where acute changes obscure chronic ones, is novel.

Implications:

  • This case highlights the importance of serial ECG monitoring in diagnosing myocardial infarction.
  • Understanding ECG masking phenomena is crucial for accurate cardiac diagnosis.

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