Severe hypercalcaemia mimicking acute myocardial infarction
Laura C Wesson1, Venk Suresh, Rob G Parry
1Eldercare Department, Royal Cornwall Hospital. lcwesson@hotmail.co.uk
Insights
High calcium levels can cause electrocardiogram (ECG) changes that look like a heart attack. Recognizing these ECG changes are due to hypercalcemia, not cardiac disease, ensures correct treatment and avoids unnecessary interventions.
Area of Science:
- Cardiology
- Endocrinology
- Internal Medicine
Background:
- Electrocardiogram (ECG) abnormalities can indicate acute myocardial infarction.
- Hypercalcemia is a potential cause of significant ECG alterations.
Observation:
- ECG changes associated with hypercalcemia can mimic those of an acute myocardial infarction.
- This diagnostic challenge necessitates careful clinical evaluation.
Findings:
- Specific ECG patterns may be indicative of hypercalcemia rather than primary cardiac ischemia.
- Distinguishing between hypercalcemia-induced and infarction-induced ECG changes is crucial.
Implications:
- Accurate diagnosis prevents unnecessary cardiac interventions.
- Timely identification of hypercalcemia allows for targeted treatment of the underlying condition.
- Understanding these ECG mimics improves patient management and outcomes.
Abstract:
Significant hypercalcaemia can cause electrocardiogram (ECG) changes mimicking an acute myocardial infarction. It is important to recognise that some ECG changes are due to conditions other than cardiac disease so that appropriate treatment is given, and importantly, inappropriate treatments are avoided.
Related Concept Videos
Acute Coronary Syndrome I: Introduction
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations
Coronary Artery Disease III: Clinical Manifestations
Acute Coronary Syndrome III: Diagnostic Studies
Myocarditis II: Clinical Features and Diagnostic Tests
Myocarditis I: Introduction

