Hi again,
Indeed, it is better to be safe than sorry. Each surgeon has their own set-up. So for me to say I had it in an out-patient surgical facility is not to say that what your doctor is doing isn't as good. I assume he was recommended to you. Chances are, as in my case, this doctor specializes in this sort of thing and knows all the latest procedures on how best to do it. It was not like an operating room at all, but they had special equipment for this task. Chances are your doctor has similar equipment. Many years ago I had skin cancer which resulted in me losing part of my face -- I had extensive reconstructive surgery and it was done in the surgeon's office which is not that unusual when it comes to reconstructive and plastic surgeons. So surgery in a doctor's office is not that unusual.
Regarding the sedative, I found it to be totally useless when I had the breast biopsy, those things tend to make me jittery rather than calm me down. But that was the way this particular surgeon did it. You could always ask your GP about it, tell him how fearful you are of needles.
In terms of the needles, the way he did it, I could not see the needles. I would suggest closing your eyes and try thinking about something else. Perhaps you could use this time to devise an entirely new Cathe rotation. On Mondays, you will do PUB followed by......... Do your best to distract yourself. You might tell the nurse of your fears and ask her to engage you in conversation -- ask her if she has children, the history of her education whatever, anything so as not to think about what is going on. Hang in there and take care. Again, wishing you the best. Let us know how it goes.