I'm currently at a site doing a lot of off-pump CABG's and, so far, every case has involved a standard, non-weight based heparin dose. 5000 units prior to starting the vein harvest and 15000 when the surgeon starts getting ready to place the grafts. Nothing even close to weight-based dosing or using a heparin response curve. We draw ACT's every 30 minutes and redose if its less than 300, usually another 5000 units but the dose is generally left up to the perfusionist.

Anyone else seen this kind of dosing for OPCAB's?