Common errors in ECG diagnosis of coronary artery disease

Area of Science:

• Cardiology
• Clinical Electrocardiography
• Diagnostic Medicine

Background:

• Electrocardiogram (ECG) abnormalities are not exclusive to ischemic heart disease.
• Several non-ischemic conditions present ECG features that can be mistaken for ischemia.
• Misinterpretation can lead to diagnostic errors and potentially harmful interventions.

Purpose of the Study:

• To review clinical conditions with ECG findings mimicking ischemic heart disease.
• To elaborate on the differentiating features of these non-ischemic mimics.
• To emphasize the importance of comprehensive ECG evaluation in accurate diagnosis.

Main Methods:

• Review of literature and clinical cases.
• Analysis of ECG characteristics in various non-ischemic conditions.
• Identification of key differentiating features compared to ischemic patterns.

Main Results:

• Conditions like ventricular hypertrophy, conduction defects, pre-excitation, pericarditis, and electrolyte disturbances can mimic ischemic ECG changes.
• Specific ECG patterns are associated with each of these mimic conditions.
• Distinguishing these from true ischemia requires in-depth analysis of subtle ECG findings.

Conclusions:

• Non-ischemic conditions frequently present ECG findings that can be confused with ischemic heart disease.
• Thorough clinical and ECG evaluation is crucial to differentiate these mimics.
• Accurate interpretation prevents misdiagnosis and guides appropriate patient management.