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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

[An unusual case of transient ST-segment elevation during hypertensive crisis in a patient with left ventricular

Alberto Cappelletti1, Silvia Maggio, Francesco Maranta

  • 1Dipartimento Cardio-Toraco-Vascolare, Università Vita-Salute e Istituto Scientifico IRCSS San Raffaele, Milano, Italy. cappelletti.alberto@hsr.it

Giornale Italiano Di Cardiologia (2006)
|October 2, 2012
PubMed

Insights

Severe left ventricular hypertrophy can cause ST-segment elevation mimicking heart attack during high blood pressure. Prompt blood pressure reduction resolved these electrocardiogram changes, revealing no coronary artery blockage.

Area of Science:

  • Cardiology
  • Internal Medicine
  • Medical Diagnostics

Background:

  • Left ventricular hypertrophy (LVH) is a common cardiac condition often associated with hypertension.
  • ST-segment elevation on electrocardiogram (ECG) typically indicates acute myocardial infarction (heart attack).
  • Hypertensive crises present significant challenges in differentiating cardiac emergencies.

Observation:

  • A 73-year-old patient with known severe LVH experienced acute ECG changes suggestive of myocardial infarction.
  • These changes occurred during a hypertensive crisis, with significantly elevated blood pressure.
  • Emergency coronary angiography was performed to rule out acute coronary syndrome.

Findings:

  • Coronary angiography revealed no evidence of coronary artery thrombosis (blood clot) or vasospasm (sudden narrowing).
  • The patient's ECG abnormalities progressively resolved as blood pressure was successfully lowered.
  • This suggests the ECG changes were a transient phenomenon related to the hypertensive state.

Implications:

  • The findings highlight that ST-segment elevation in hypertensive crisis with LVH may not always indicate acute myocardial infarction.
  • This case underscores the importance of considering non-ischemic causes for ST-segment elevation in the context of severe hypertension.
  • Accurate diagnosis and management of hypertensive emergencies are crucial to avoid unnecessary invasive procedures and guide appropriate treatment.

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