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NSVT and SVT

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SheliRenee Find out more about SheliRenee
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  • NSVT and SVT

    Hi Everybody -

    I was wondering if anybody could tell me about Non-Sustained Ventricular Tachycardia and Sustained Ventricular Tachycardia. How is it determined which a person has? Is either of these worse than the other?

    Thanks for any input.

    SheliRenee
    Mom of Keanu
    4 years old (will be in March)
    Dx at 2 days old with Biventricular hypertrophy
    Dx at 6 weeks with HOCM
    Dx at 5 months with V-tach
    Dx at 3 with Noonan Syndrome

  • #2
    abbreviations

    Hi

    When you see SVT, it means supra or super-ventricular tachycardia (not sustained). This is a fancy way of saying atrial tachycardia (the atria being above or "superior to" the ventricles).

    NSVT, however, means non-sustained vtach. Fancy way of saying "brief" or short-lived, sometimes called a "run."

    Atrial tachycardia means the heart rate is over 100 beats per minute. People can have long bouts of tachycardia, but you want to keep it down with medication. Ventricular tachycardia means the bottom half of the heart is beating too fast, as opposed to the top half (the atria).

    Almost everyone with HCM has SVT from time to time. Vtach is more rare and the more dangerous. Lots of vtach is considered a risk factor.

    take care,

    S

    Comment


    • #3
      Hey Sarah,

      It wasn't my post, so forgive me for sticking my nose in, but that was very helpful info to have. Thanks!

      Jim
      "Some days you're the dog... some days you're the hydrant."

      Comment


      • #4
        no noses

        Dear Jim,

        Last I checked. butting in is what you are supposed to do here! :P

        S

        and you're welcome.

        Comment


        • #5
          So does that mean there's no such thing as sustained Ventricular Tachycardia or there is, but it's not abbreviated SVT? I just want to be totally clear....

          SheliRenee
          Mom of Keanu
          4 years old (will be in March)
          Dx at 2 days old with Biventricular hypertrophy
          Dx at 6 weeks with HOCM
          Dx at 5 months with V-tach
          Dx at 3 with Noonan Syndrome

          Comment


          • #6
            yes and no

            Dear SH,

            Here is a link to a very clear explanation of vtach: http://www.hendrickhealth.org/healthy/001451.htm

            Sustained vtach is usually just referred to as VT and non-sustained as NSVT.

            SVT is usually super-ventricular tachycardia.

            Note my use of the word "usually."

            Linda --can you speak to this (she's a nurse).

            S

            Comment


            • #7
              Great link, Sarah. Thanks for the info.

              Reenie
              Reenie

              ****************
              Husband has HCM.
              3 kids - ages 23, 21, & 19. All presently clear of HCM.

              Comment


              • #8
                Sarah, you have the correct info. It can get very confusing, esp with illegible handwriting as we so often see on written reports. Thank goodness for dictations these days. The very basic description of V-tach is 3 PVC's(premature ventricular contractions) together in a row. Sustained VT is described as 30 seconds or more, but I suspect different facilities/experts may have different criteria depending on what they are studying. Those who want to avoid confusion/misunderstandings will spell out non-sustained VT. Anyone from a different area have anything to add? Linda

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                • #9
                  Thank you all for the information. That is a great link. From what you all have said and the information from the Hendrick link, I am getting that NSVT is not as bad as sustained VT...am I right?
                  Mom of Keanu
                  4 years old (will be in March)
                  Dx at 2 days old with Biventricular hypertrophy
                  Dx at 6 weeks with HOCM
                  Dx at 5 months with V-tach
                  Dx at 3 with Noonan Syndrome

                  Comment


                  • #10
                    if you had to choose

                    Since VT is bad, the less of it, the better. So, yes, NSVT is better than VT.

                    But SVT (aka atrial tachycardia) is better than NSVT.

                    Ven diagram anyone?

                    S

                    Comment


                    • #11
                      Well, I guess if Keanu had to have a tachycardia, then the atrial would have been better, however, he has the NSVT. When he had his echo and EKG on the 4th of this month I heard the doctor mention that he had NSVT. He also wants us to get an AED to keep with Keanu wherever he goes. We will also be seeing two different pcs again - one for the arrythmia and one for the obstruction. This is how it was after Keanu was first diagnosed with the arrythmia, we saw his original pc and then started seeing the EP also. His original pc moved and we were only seeing the EP. After questioning him last week he suggested that we also start seeing another pc that has more knowledge about HCM/HOCM and is treating more patients. I think he felt that this other doctor would be better qualified to answer all of the questions that I have. I always seem to have a long list of questions whenever we go in. Anyway, thanks again for all the info you guys have shared with me.

                      SheliRenee
                      Mom of Keanu
                      4 years old (will be in March)
                      Dx at 2 days old with Biventricular hypertrophy
                      Dx at 6 weeks with HOCM
                      Dx at 5 months with V-tach
                      Dx at 3 with Noonan Syndrome

                      Comment


                      • #12
                        Keep bringing the long list of questions. There should be more patients who are involved in their own care and understand what's happening to themselves. Not to mention it keeps the docs on their toes and up to date. We have all seen docs who skim over their time with us and by asking questions, you assure that they actually think of you as a person, not just another body running through the assembly line of the appointment system. Sorry if that sounded harsh to some, but it's my experience.

                        Reenie
                        Reenie

                        ****************
                        Husband has HCM.
                        3 kids - ages 23, 21, & 19. All presently clear of HCM.

                        Comment

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