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Safety of RF

Raad Alkhafaji on March 20, 2019 at 5:45 am
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    • Raad AlkhafajiRaad Alkhafaji
      Participant
      Joined: May 7, 2015
      Posts: 0
      #48079

      Dear Professors
      I have a question about the safety of RF ( both pulsed and thermal ) in patient with coronary stent , and patient with prosthetic valve , please

      • Fabricio Dias AssisFabricio Dias Assis
        Participant
        Joined: Sep 6, 2016
        Posts: 5
        #48080

        Hello Dr. Raad,

        The radiofrequency procedures, either conventional or pulsed, could interfere with electronic devices as pacemakers and SCS. In these cases the devices should be turned off before the procedures and, if possible, we should use bipolar techniques. Patients with coronary stents and valves have no problem with RF procedures.

        Fabricio Assis

        • Raad AlkhafajiRaad Alkhafaji
          Participant
          Joined: May 7, 2015
          Posts: 0
          #48082

          Thank you so much sir.
          The stents and the prosthetic valves are made of metal . Safe too ?

          • John NelsonJohn Nelson
            Participant
            Joined: Dec 2, 2015
            Posts: 0
            #48094

            Agree 100% with Fabricio. If doing RF with pacemaker and don’t have bipolar be sure and place dispersal electrode no where near pacemaker and have magnet in case need to activate pacemaker in fixed mode. If patient pacemaker dependent good idea to have cardiologist in attendance . John Nelson MD FIPP

              • Fabricio Dias AssisFabricio Dias Assis
                Participant
                Joined: Sep 6, 2016
                Posts: 5
                #48095

                No problem with the metals, unless they are very close to the target.

              • George Chang ChienGeorge Chang Chien
                Participant
                Joined: May 9, 2017
                Posts: 1
                #48248

                a safe thing to do is call the cardiologist and get clearance to turn it off. they typically will ask for you to have the device rep there to interrogate it and make sure it is operating normally after the procedure. I just did one today – pulsed RF of suprascapular nerve in patient with AICD. i placed the grounding pad far away from where the pacemaker was at. we taped a magnet to the AICD for the procedure (which deactivates it – manufacturer dependent?) and removed it afterwards.

                the patient has a device at home to interrogate the ICD afterwards to make sure it is functioning properly. A recent publication by SIS is attached here.

                https://cdn.ymaws.com/www.spineintervention.org/resource/resmgr/factfinder/factfinder_2018_08_rfn_pacem.pdf

                • George Chang ChienGeorge Chang Chien
                  Participant
                  Joined: May 9, 2017
                  Posts: 1
                  #48249

                  agree with all of the above from Dr. Assis and Dr. Nelson

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