title: Percutaneous sympathectomy of the renal arteries: the OneShot Renal Denervation System is not associated with significant vessel wall injury.
abstract: OBJECTIVE
  Renal artery denervation (RADN) is an emerging technique for the treatment of resistant hypertension (RH). However, the use of the available systems has been associated with vascular injury, resulting in vasospasm and vessel wall thrombosis. The OneShot System (Covidien, San Jose, CA, USA) is an irrigated radiofrequency balloon designed to reduce vessel heating and injury during RADN.
  
  
  RESULTS
  The aim of the present study was to evaluate the target vessel morphological features before and after renal ablation using the OneShot RADN system. In this prospective observational study, 12 renal arteries of patients underwent RADN using the OneShot™ RADN System. Pre-procedural and post-procedural optical coherence tomography (OCT) pullbacks were performed and evaluated. No evidence for vasospasm, oedema or intraluminal thrombus formation was detected. Limited arterial dissections, after RADN, occurred in three renal arteries and did not require additional treatments. A sustained reduction of office blood pressure levels was observed over six months of follow-up in all the patients.
  
  
  CONCLUSIONS
  This study demonstrates that, in a small patient population, RADN using the OneShot Renal Denervation System is not associated with arterial spasm or thrombus formation on the vessel wall.
authors.affiliation: Division of Cardiology, Department of Advanced Biomedical Sciences, "Federico II" University, Naples, Italy.
authors.forename: Eugenio
authors.initials: E
authors.lastname: Stabile
authors.forename: Vittorio
authors.initials: V
authors.lastname: Ambrosini
authors.forename: Roberta
authors.initials: R
authors.lastname: Squarcia
authors.forename: Luigi
authors.initials: L
authors.lastname: Salemme
authors.forename: Grigore
authors.initials: G
authors.lastname: Popusoi
authors.forename: Giovanni
authors.initials: G
authors.lastname: Esposito
authors.forename: Bruno
authors.initials: B
authors.lastname: Trimarco
authors.forename: Paolo
authors.initials: P
authors.lastname: Rubino
mesh_terms: D017115:Catheter Ablation; D006801:Humans; D006973:Hypertension; D011446:Prospective Studies; D011859:Radiography; D012077:Renal Artery / Q000000981:diagnostic imaging; D013562:Sympathectomy; D016896:Treatment Outcome