I have both of these diseases, Mytral Valvue Prolance and WPW. The problem is that I am having parpitation episodes that bring my heart to 156-170 speed; they are not that frequent. My doctor suggests Catheter Ablation. I am a little nervous and would like to know how one (WPW) can be treated without treating or affecting the other (Mytral Valvue Prolance). Are my palpitation related to the second one as well? I am 34 years old and don't know if I should wait before that operation. Also, what would be the best procedure, outpatient or in the hospital?