I wouldn't swim whilst you still have wounds and when they are healed you don't actually need to wear a compression sleeve in the water as the water acts as compression when you are swimming against it. This is advice given by both my lymphoedema service and doctor. I never wear compression when swimming. If you ever feel you need to you could just wear one of your old sleeves. Keep us updated about your LVA do you feel it has helped so far? I guess it may be too early to tell x