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  • Title: Procedural Reassessment of Radiofrequency Renal Denervation in Resistant Hypertensive Patients.
    Author: Rabbia F, Testa E, Fulcheri C, Berra E, Di Monaco S, Covella M, Pappaccogli M, Monticone S, Rosiello R, Rossato D, Veglio F.
    Journal: High Blood Press Cardiovasc Prev; 2017 Jun; 24(2):187-192. PubMed ID: 28374154.
    Abstract:
    INTRODUCTION: Recent anatomical and clinical studies have led to the hypothesis that in several cases of failure of response to renal denervation (RDN), the procedure has not been technically correct. AIM: To perform procedural reassessment in patients with true resistant hypertension who underwent RDN. METHODS: We retrospectively reassessed the procedural technique of RDN in 10 true resistant hypertensive patients, comparing the sites of renal ablations with the knowledge of animal and human post mortem evidences. Procedural ablation technique was assessed in terms of number of ablations for each renal artery and site of ablation (quadrant and distance from renal ostium) by using the radiologic images of each RDN and the number of radiofrequency ablation attempts documented in the reports of each denervation session. RESULTS: 10 patients were studied, 9 denervated with Simplicity monoelectrode catheter, 1 with multielectrode balloon technique. Responders to the procedure underwent more ablations and particularly at least a quadrant ablation in one of the kidney arteries, >2 ablations in Dorsal plus Ventral quadrants and in 67% of then >10 ablations were done in superior inferior and ventral quadrants. CONCLUSION: This study confirms the importance of a well knowledge of renal artery anatomy and underlines the relevance of the choice of ablation sites in order to obtain a successful RDN procedure.
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