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[ECG pearl: transient Q-waves in myocardial infarction]

János Tomcsányi1

  • 1Betegápoló Irgalmasrend Budai Irgalmasrendi Kórháza Budapest, Árpád fejedelem útja 7., 1023.

Orvosi Hetilap
|July 17, 2018
PubMed

Insights

A case of ST-segment elevation myocardial infarction (STEMI) showed transient Q-waves that resolved after percutaneous coronary intervention (PCI). This finding highlights dynamic electrocardiographic changes post-treatment for acute myocardial infarction.

Area of Science:

  • Cardiology
  • Clinical Medicine
  • Medical Diagnostics

Background:

  • ST-segment elevation myocardial infarction (STEMI) is a critical condition requiring prompt reperfusion therapy.
  • Electrocardiographic (ECG) changes, such as Q-waves, are key indicators of myocardial infarction.
  • The resolution of pathologic Q-waves after intervention is an uncommon observation.

Observation:

  • A patient presented with STEMI and developed pathologic Q-waves in precordial leads.
  • These Q-waves were transient, indicating a dynamic process within the myocardium.
  • The Q-waves disappeared following successful percutaneous coronary intervention (PCI).

Findings:

  • The case demonstrates that Q-waves in STEMI can be transient and reversible.
  • Successful PCI led to the resolution of these specific ECG abnormalities.
  • This suggests that the underlying myocardial pathology causing Q-waves was not irreversible at this stage.

Implications:

  • Transient Q-waves may not always signify irreversible myocardial damage in STEMI.
  • PCI can potentially reverse ECG changes indicative of infarction.
  • Further research is warranted to understand the mechanisms and prognostic significance of transient Q-waves in STEMI patients undergoing reperfusion therapy.

Keywords:
acut myocardialis infarctusacute myocardial infarctionstunned myocardiumstunningtransient Q-wavestranziens Q-hullám

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