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Related Experiment Videos

Hypoglycaemia-induced ischaemic ECG changes

A Markel1, S Keidar, K Yasin

  • 1Department of Internal Medicine, Ramban Medical Center, Haifa, Israel.

Presse Medicale (Paris, France : 1983)
|January 22, 1994
PubMed
Summary
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Severe hypoglycemia can cause significant electrocardiogram (ECG) changes, mimicking myocardial ischemia. Prompt glucose administration reversed these dangerous cardiac findings in a diabetic patient.

Area of Science:

  • Cardiology
  • Endocrinology
  • Diabetology

Background:

  • Hypoglycemia, particularly severe episodes, can present with diverse clinical manifestations.
  • Electrocardiogram (ECG) abnormalities during hypoglycemia are rarely documented and poorly understood.
  • Patients with long-standing diabetes mellitus are at risk for both glycemic dysregulation and cardiovascular complications.

Observation:

  • A patient with an 8-year history of insulin-dependent diabetes mellitus presented with hypoglycemic coma (blood glucose 1.11 mmol/l).
  • Initial ECG showed junctional rhythm and significant ST depression (6-7 mm), indicative of myocardial ischemia.
  • These ECG changes resolved within 15 minutes following intravenous 50% glucose administration, with sinus rhythm and normal repolarization restored.

Findings:

Related Experiment Videos

  • Hypoglycemia can induce transient but severe ECG changes resembling acute myocardial ischemia.
  • The observed ECG alterations were reversible with glucose repletion.
  • No evidence of myocardial infarction was detected during subsequent follow-up.

Implications:

  • This case highlights the critical need for careful glucose monitoring and management in diabetic patients, especially those with cardiovascular risk factors.
  • Clinicians should consider hypoglycemia as a potential cause of ischemic ECG changes, particularly in patients with diabetes.
  • Further research is warranted to elucidate the precise mechanisms linking hypoglycemia to myocardial ischemia and guide preventative strategies.