Our 18 year old daughter has suffered from Wolf Parkinson White syndrome since the age of about 10 - she would have episodes of extremely fast beating heart once every 3 months or so, often while doing sport or sometimes while just sitting down, sneezing or just moving her leg suddenly. She had an operation before Christmas last year and nothing since. Ironically our 9 year old son has over the past few months told us that his heart is beating fast!!! At first I didn't pay too much attention! (it couldn't happen twice!). Recently I have touched his chest each time he tells me and in the last week it has been almost every day! it feels like a golf ball pounding out of his chest. Have been to the Drs twice this week and hospital once. We are going to be referred to the same surgeon as his sister. My question is, in the mean time, should he continue with his many sporting activities? We have been told to carry on as usual, but I don't think the Drs realise just how energetic he is! Both children are extremely sporty and both very fast! Because our son seems to be having such regular attacks I am concerned about letting him take part in a hockey tournament this week end, for example. Also is common to have siblings with Wolf Parkinson White syndrome - it seems so strange just after our daughter has had her operation!