Key result
Classic RV strain and S1Q3T3 patterns on ECG highlight acute pulmonary embolism in shock.
Why the study?
The importance of patient context in interpreting ECGs for pulmonary embolism diagnosis is emphasized due to nonspecific ECG abnormalities and the possibility of a normal ECG.
Case Report (n=1)
ECG findings such as the S1Q3T3 pattern and right ventricular strain, while individually non-specific, strongly support a diagnosis of acute pulmonary embolism when interpreted in the appropriate clinical context of sudden chest pain and hemodynamic instability.
Supports ECG interpretation in suspected PE with instability; leaves open prospective validation of pattern specificity.
The patient context is important when commenting on or interpreting the ECG.Pulmonary embolism needs to be considered in any patient presenting with chest pain or haemodynamic instability, especially if the ECG does not show typical acute myocardial ischaemia or infarction. A multitude of ECG abnormalities, singly usually non-specific, strengthens the case for pulmonary embolism. A normal ECG does not exclude pulmonary embolism.
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Andrzej M. Okreglicki (2017) conducted a case report in Acute pulmonary embolism (n=1). Electrocardiogram (ECG) was evaluated. An ECG showing sinus tachycardia, an S1Q3T3 pattern, and right ventricular strain supported the diagnosis of acute pulmonary embolism in a patient with sudden onset chest pain and hypotension.
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