How to Assess Impaired Right Heart Electrical Conduction in Patients with Pulmonary Arterial Hypertension?
To editor
The identification of an optimal modality to monitor the severity of pulmonary arterial hypertension (PAH) remains imperative. The authors demonstrated that a prolonged RS interval on the electrocardiogram was associated with adverse clinical outcomes in this cohort, under the hypothesis that right heart electrical conduction is compromised in patients with severe PAH. Nonetheless, several concerns merit consideration.
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