All of my proverbial ducks are in a row. Everything is in order, including my living trust, will and closet. So, what’s a woman to do while awaiting May 29 open-heart surgery? Fly to Las Vegas, of course. A few decadent days in Sin City may be just what the doctor ordered. Can’t hurt. With Maddie safely in our dog sitter’s care, my partner Rebecca and I left on a whirlwind Wednesday-to-Saturday junket, as my parents used to say. It was a long-planned trip to celebrate Rebecca’s milestone birthday. My cardiac care nurse at the University of Michigan urged us not to cancel. Just go and have fun, she said.…