Observational analysis reveals right atrium enlargement mimicking biatrial changes in ECG, indicating the impact of pulmonary hypertension.
A massively enlarged right atrium due to severe pulmonary hypertension can mimic biatrial enlargement on ECG, despite a structurally normal left atrium, highlighting the role of mechanical displacement in electrocardiographic pattern alteration.
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Farandzha et al. (2025) studied this question.
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