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Mid-Ventricular Obstructive Hypertrophic Cardiomyopathy and Apical Aneurysm Mimicking Acute ST-Elevation Myocardial

Li Cui1, Ya Suo1, Yuntao Zhao2

  • 1Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China.

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
|June 25, 2015
PubMed

Insights

Nonischemic ST-elevation myocardial infarction (STEMI) can mimic acute STEMI. Mid-ventricular obstructive hypertrophic cardiomyopathy (MVOHCM) is a rare cause, presenting with ST-segment elevation and apical aneurysm.

Area of Science:

  • Cardiology
  • Medical Diagnostics

Background:

  • Nonischemic ST-segment elevation on electrocardiograms (ECGs) can be misdiagnosed as acute ST-elevation myocardial infarction (STEMI).
  • Hypertrophic cardiomyopathy (HCM) is a crucial differential diagnosis in such cases.
  • Mid-ventricular obstructive hypertrophic cardiomyopathy (MVOHCM) is a rare subtype of HCM, representing about 5% of all HCM cases.

Observation:

  • ST-segment elevation on ECG is an uncommon presentation for MVOHCM.
  • This case highlights a rare instance of MVOHCM with an apical aneurysm.

Findings:

  • The patient's presentation mimicked acute STEMI.
  • ECG findings in MVOHCM can be misleading, necessitating careful differential diagnosis.

Implications:

  • Recognizing MVOHCM as a differential diagnosis for ST-segment elevation is vital for accurate patient management.
  • This case underscores the importance of considering rare cardiomyopathies in the evaluation of atypical cardiac presentations.
  • Early and accurate diagnosis can prevent unnecessary interventions for STEMI.

Keywords:
aneurysmhypertrophic cardiomyopathymyocardial infarction

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