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MAPPING SYMPATHETIC NERVE DISTRIBUTION FOR RENAL ABLATION AND CATHETERS FOR SAME

  • US 20110306851A1
  • Filed: 08/26/2011
  • Published: 12/15/2011
  • Est. Priority Date: 08/26/2011
  • Status: Active Grant
First Claim
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1. A method of mapping renal nerves for ablative procedures to treat disease caused by systemic renal nerve hyperactivity, comprising the steps of:

  • a) introducing catheters that perform stimulatory and ablative processes into renal artery;

    b) measuring indicia of disease before site-specific electrical stimulation to obtain baseline measurements;

    c) introducing electrical current through the catheter in a site-specific manner to portions of the renal artery lumen in order to stimulate underlying renal nerves;

    d) optionally moving the catheter tip of the catheters according to a specified protocol in order to make contact with desired portions of the renal artery lumen;

    e) measuring indicia of disease after each site-specific electrical stimulation and recording changes over baseline; and

    f) correlating changes in disease indicia with the portions of the renal artery lumen which were stimulated to produce said changes, thereby mapping specific locations of renal nerves underlying the renal artery lumen.

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