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Electrocardiogram

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An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
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Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

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Acute Coronary Syndrome I: Introduction

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Imaging Studies for Cardiovascular System I:Echocardiography

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A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

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Hypercalcaemia Mimicking STEMI on Electrocardiography.

Joseph Donovan¹, Mark Jackson

¹Royal Sussex County Hospital, Brighton BN2 5BE, UK.

Case Reports in Medicine

|January 7, 2011

Summary

This summary is machine-generated.

Hypercalcemia can cause electrocardiogram (ECG) changes that mimic acute myocardial infarction in low-risk patients. Prompt treatment of hypercalcemia resolved these concerning ECG findings.

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Area of Science:

Cardiology
Endocrinology
Internal Medicine

Background:

Acute coronary syndrome (ACS) is a frequent reason for hospital admission.
ST-segment elevation on an electrocardiogram (ECG) typically suggests a cardiac origin, such as myocardial infarction.
However, alternative diagnoses must be considered in low-risk individuals presenting with these ECG changes.

Observation:

A case is presented of a male patient with hypercalcemia.
The patient had no discernible cardiac disease.
The patient exhibited ECG changes that closely resembled those of an acute myocardial infarction.

Findings:

The observed ECG abnormalities were not due to cardiac pathology.
The ECG changes were directly linked to the patient's elevated calcium levels (hypercalcemia).
Resolution of the ECG abnormalities occurred following successful treatment of the hypercalcemia.

Implications:

Hypercalcemia should be considered in the differential diagnosis of ST-segment elevation on ECG, particularly in patients without clear cardiac risk factors.
This case highlights the importance of a comprehensive diagnostic approach, including metabolic evaluation, for patients with ECG changes suggestive of myocardial infarction.
Recognizing and treating hypercalcemia can prevent unnecessary cardiac interventions and improve patient outcomes.