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  • Title: Twelve-month results of the rapid renal sympathetic denervation for resistant hypertension using the OneShotTM ablation system (RAPID) study.
    Author: Verheye S, Ormiston J, Bergmann MW, Sievert H, Schwindt A, Werner N, Vogel B, Colombo A.
    Journal: EuroIntervention; 2015 Feb; 10(10):1221-9. PubMed ID: 25452198.
    Abstract:
    AIMS: Renal denervation has emerged as a treatment option for patients with drug-resistant hypertension. This study was designed to assess the safety and effectiveness of the OneShotª Renal Denervation System. METHODS AND RESULTS: RAPID is a prospective, multicentre, single-arm study which enrolled 50 patients at 11 clinical sites in Europe and New Zealand. Eligible patients had an office systolic blood pressure (SBP) ≥160 mmHg and were on a stable regimen of ≥3 antihypertensive medications including a diuretic. The primary safety endpoints were acute procedural safety at discharge and chronic procedural safety at six months. The primary effectiveness endpoint was the rate of office SBP reduction ≥10 mmHg at six months compared to baseline. While not a predefined endpoint, change in 24-hour ambulatory BP was evaluated. The mean baseline office SBP and diastolic BP measurements were 181.6±20.8 and 95.5±15.5 mmHg, respectively. Patients were on a mean of 5.1 antihypertensive medications at baseline. The mean office BP decreased by -20/-8 mmHg (p<0.0001/p=0.0002), and -22/-8 mmHg (p<0.0001/p=0.0014), from baseline to six and 12 months, respectively. The 24-hour ABPM was also significantly reduced by -11/-6 mmHg at six months compared to baseline (p=0.0085/p=0.037). There were no serious adverse events (SAE) at discharge related to groin and vascular access complication or renal artery injury or SAE/adverse device effects at six months. CONCLUSIONS: The results of the RAPID study demonstrate safe delivery of RF energy by the OneShot Renal Denervation System for renal sympathetic denervation and sustained efficacy, as evidenced by a significant reduction in office and 24-hour ABPM for six months, which was sustained up to 12 months. ClinicalTrials.gov Identifier: NCT01520506.
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