Changes in surface electrocardiogram in patients with chronic thromboembolic pulmonary hypertension undergoing pulmonary endarterectomy. Correlations with hemodynamic and echocardiographic improvements after surgery
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文摘

We studied 99 patients with chronic thromboembolic pulmonary hypertension undergoing pulmonary endarterectomy.

P wave amplitude in DII, R wave amplitude in V1 and the number of patients with negative T wave in V1–V3 decreased immediately after surgery, in parallel with the rapid improvement in right heart hemodynamics.

S wave amplitude in V1, R:S wave ratio in lead V6 and prevalence of SIQIII pattern improved significantly at 1 year, in parallel with the reverse remodeling of the right ventricle at echocardiography.

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