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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
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Sudden cardiac arrest in hypertrophic cardiomyopathy with dynamic cavity obstruction: The case for a

Cosmin Balan1, Adrian View-Kim Wong1

  • 1Department of Critical Care Medicine, Oxford University Hospitals NHS Foundation Trust, UK.

Journal of the Intensive Care Society
|February 20, 2018
PubMed

Insights

This case study shows that avoiding catecholamines, like beta-blockers, can help stabilize patients with cardiac arrest and specific heart conditions. This approach aids cardiovascular stability by increasing heart filling.

Area of Science:

  • Critical care medicine
  • Cardiology
  • Pharmacology

Background:

  • Catecholamines are standard in treating shock but can cause harm.
  • A paradigm shift acknowledges catecholamine-induced 'death spirals' in critical care.
  • Refractory ventricular fibrillation requires prolonged resuscitation efforts.

Observation:

  • A 21-year-old male experienced out-of-hospital cardiac arrest with prolonged resuscitation (70 min).
  • Echocardiography revealed severe left ventricular hypertrophy and dynamic mid-cavity obstruction.
  • The patient presented with akinetic apical pouching post-resuscitation.

Findings:

  • A decatecholaminised strategy was implemented.
  • Beta-blockers were used to augment left ventricular end-diastolic volume.
  • Cardiovascular stability was achieved with this management approach.

Implications:

  • This case suggests a decatecholaminised strategy may be beneficial in specific shock states.
  • Managing left ventricular hypertrophy and dynamic obstruction requires tailored hemodynamic support.
  • Further research into non-catecholamine strategies for refractory shock is warranted.

Keywords:
Hypertrophic cardiomyopathycatecholaminesechocardiographymid-ventricular obstructionsudden cardiac arrest

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