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Radiofrequency Pulmonary Artery Ablation for Treatment of Residual Pulmonary Hypertension After Pulmonary Endarterectomy



Radiofrequency Pulmonary Artery Ablation for Treatment of Residual Pulmonary Hypertension After Pulmonary Endarterectomy



Kardiologiia 58(4): 15-21



to assess the safety and efficiency of radiofrequency pulmonary artery ablation for treatment of residual pulmonary hypertension after pulmonary endarterectomy. Radiofrequency pulmonary artery denervation (PADN) was performed in 16 patients (10 men, mean age 39 years [26; 51]). Indication for PADN was mean pulmonary artery pressure (PAP) >25 mm Hg with absence of proximal pulmonary artery lesion according to computer tomography. PADN procedure was performed with nonfluoroscopic 3D navigation system. After PADN mean PAP decreased from 37.3 mm Hg [29; 38] to 24.6 mm Hg [17; 30] (p=0.01); pulmonary vascular resistance decreased from 672 dyn∙s∙c-5 [387; 566] to 386 dyn∙s∙c-5 [155; 449] (р=0.02); cardiac output increased from 3.4 l/min [3.2; 3.4] to 3.5 l/ min [3.2; 4.0] (p=0.4); 6-minute walk test distance increased from 427 meters [352; 510] to 447 meters [370; 525] (p=0.16), respectively. Initial results allow to assume that radiofrequency pulmonary artery denervation combined with optimal medical therapy may take its rightful place in the treatment of this category of patients.

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Accession: 066446488

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PMID: 30704379


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