Hi, Pinochet,
I'm glad therapy has worked in part for you - it is the cause of my current issues with Anxiety. I don't claim that Meditation cures Anxiety or Panic Attacks, but it does strengthen the mind and can very much help keep you calm when the feelings arise.
That being said, it is not 100%, even for me. I had an uncontrollable Attack in a Bank queue - aggravated by being off my pain meds - where I HAD to leave the building immediately.
Even then, once I was 'safe' sat in the car, breathing techniques did help me calm down quicker.

Dave.