• 1
    Mahfoud F, Himmel F, Ukena C, et al. Treatment strategies for resistant arterial hypertension. Dtsch Arztebl Int. 2011;108:725731.
  • 2
    Schlaich MP, Sobotka PA, Krum H, et al. Renal sympathetic-nerve ablation for uncontrolled hypertension. N Engl J Med. 2009;361:932934.
  • 3
    Krum H, Schlaich M, Whitbourn R, et al. Catheter-based renal sympathetic denervation for resistant hypertension: a multicentre safety and proof-of-principle cohort study. Lancet. 2009;373:12751281.
  • 4
    Symplicity HTN-2 Investigators. Renal sympathetic denervation in patients with treatment-resistant hypertension (The Symplicity HTN-2 Trial): a randomised controlled trial. Lancet. 2010;376:19031909.
  • 5
    Chakko S, Mulingtapang RF, Huikuri HV, et al. Alterations in heart rate variability and its circadian rhythm in hypertensive patients with left ventricular hypertrophy free of coronary artery disease. Am Heart J. 1993;126:13641372.