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  • Title: [The effect of catheter based renal synthetic denervation on renin-angiotensin-aldosterone system in patients with resistant hypertension].
    Author: Wang L, Lu CZ, Zhang X, Luo D, Zhao B, Yu X, Xia DS, Chen X, Zhao XD.
    Journal: Zhonghua Xin Xue Guan Bing Za Zhi; 2013 Jan; 41(1):3-7. PubMed ID: 23651959.
    Abstract:
    OBJECTIVE: to explore the effect of catheter based renal synthetic denervation on renin-angiotensin-aldosterone system (RAAS) and blood pressure reduction in patients with resistant hypertension. and assess the validity and security of the treatment. METHODS: Ten patients with resistant hypertension from June 2011 to December 2011 were retrospectively reviewed, and then all of 10 patients screened for eligibility were allocated to renal denervation. Primary endpoints were changes of office blood pressure at 1 week, 1, 3 and 6 months after procedure. We assessed the effectiveness of renal sympathetic denervation with heart rate (HR), renin activity (PRA), angiotensin II (AngII), aldosterone (Ald), and creatinine (Cr) before and 2 weeks after procedure. RESULTS: Office blood pressure after catheter-based renal denervation decreased by 22.8/9.1 mm Hg (1 mm Hg = 0.133 kPa), 34.8/14.7 mm Hg, 42.6/20.7 mm Hg, 43.2/21.6 mm Hg, at 1 week, 1, 3 and 6 months, respectively (P < 0.001). Meanwhile, the level of PRA, AngII, Ald decreased by (1.11 ± 0.89) ng×ml(-1)×h(-1) (P = 0.003), (17.06 ± 13.82) ng/L (P = 0.004), (404.5 ± 285.8) ng/L (P = 0.002), respectively; and heart rate decreased by 5.1 bpm (P = 0.002). However, the Cr level and eGFR did not change significantly (P > 0.05). CONCLUSION: Catheter-based renal sympathetic denervation can reduce the level of renin activity, angiotensin II and aldosterone, and causes substantial and sustained blood-pressure reduction.
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