Hi Roz, All I know about PiCC lines or any lines that go to the heart is that they are serious business of course. And any infection can be very serious. Mine were all very successful. I had each of mine for about a month maybe one of them was for three months. Other than having had them and that you must keep them clean I know nothing medically about them.I just prefer them to an IV as I can not sustain an Iv for any length of time.The veins in my right arm are all gone- blown and the ones in my left arm are hard to find and my left arm is highly sensitive due to RSD. Sorry I couldnt be of more help. And I am very sorry to hear you had an infection from one- I was warned that an infection can be serious and take months to heal with antibiots.cz