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Doppler readings

Discussion in 'General Issues and Discussion Forum' started by richardrobley, Apr 10, 2013.

  1. richardrobley

    richardrobley Active Member


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    Hi everyone

    Quick question, I'm familiar with monophasic, biphasic and triphasic pulses when testing a patient with a Doppler but what does it mean when you can clearly hear four? Patient is 30 years old, generally fit and well but does have poor venous return.
     
  2. blinda

    blinda MVP

  3. markjohconley

    markjohconley Well-Known Member

    Around the world a collective groan could be heard ........
     
  4. plevanszx1

    plevanszx1 Active Member

    you should not hear 4sounds. are you using a bi-directional doppler or a cheapy one directional. are you using headphones.
    1- forward flow
    2-reverse flow due to elastic recoil of the system
    3- a final overpowring of the recoil in a young or healthy powerfull artery

    end of story but itis sometimes possible to think the dying away of the first most powerful sound is 2 sounds when it is not

    peter evans
     
  5. LuckyLisfranc

    LuckyLisfranc Well-Known Member

    If there are 4 distinct sounds, then by definition, you are hearing tetraphasic flow.

    This is uncommon, but not impossible - I have noted it in several patients over many years. It is more common in other areas (ie the hepatic artery), than peripheral arteries.

    Certain cardiac abnormalities, including congestive heart failure, may account for this.

    If available, a waveform printout may better decipher the nature of this flow (eg antegrade or not, during systole or diastole, etc).

    LL
     
  6. richardrobley

    richardrobley Active Member

    Oh dear
     
  7. Paul Bowles

    Paul Bowles Well-Known Member

    Read LL's response above......who is groaning now!
     
  8. markjohconley

    markjohconley Well-Known Member

    Paul you're correct, I make many an error but innocent here, I was referring to Bel's post, my weak attempt at humour, I was 'laughing with her' certainly not having a go at anyone.
    As for LL I've been lectured before from Monsieur Lisfranc, we're great mates, an excellent source of information,
    all the best
     
  9. blinda

    blinda MVP

    I aim to please...at or with, makes no difference.
     
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