catwoman said:
Norma:
You need to read up about Warrenr's dad, who had a mechanical mitral valve and had a colonoscopy. Long story short: He suffered a stroke the day of the procedure and spent the rest of his life in a nursing home.
My GI doc, cardio & PCP have all said I will be anticoagulated (at 2.5) for a colonoscopy. And, yes, I have had polyps removed before (this was pre-MVR).
Norma,
You also need to know "The REST of the Story" about WarrenR's Dad. His Doc had MIS-managed his Coumadin for a LONG TIME before the procedure (INR was Too Low) and took him OFF Coumadin (with NO Bridging) as I recall so this is NOT a typical situation and probably NOT applicable to YOUR situation.
That said, I have found there seem to be about as many philosophies about Bridging as there are Doctors (OK that's probably an exageration but you get the idea).
Probably the Safest approach is to STOP Coumadin, measure INR 1 or 2 days later, and START Lovenox when the INR is down to 2.0 (or your bottom target number), then STOP Lovenox 24 hours before the procedure.
Assuming there is NO significant Bleeding Risk following the procedure, RESUME Lovenox the night of the procedure (i.e. ~8 hours after the procedure) and RESUME Coumadin that same night at your Normal Dose. When your INR is Back In Range, discontinue the Lovenox.
SOME Doc's simply have you Stop your Coumadin and Start Lovenox 24 hours later which is not a bad approach and saves having to do extra tests.
IF the GI Doc is concerned about Bleeding Risk, he may want to simply Start Coumadin that night, following the procedure, and start Lovenox 24 hours later, until your INR is in range. Note that the effects of Lovenox are generally considered to be 'mostly' dissipated after 12 hours so you usually take 2 injections per day. Dose is base on Body Weight.
As you can see, there is a Lot Wiggle Room in Bridging as the Doc's try to Balance the Risk of Stroke vs. the Risk of Bleeding. (Been There, Done That, Twice)
SOME GI Doc's are willing to do an Exploratory Colonoscopy while fully anti-coagulated and I believe this philosophy has been endorsed by the Medical Society for GastroEnterologists. I expect Most will want you OFF anti-coagulation if they are going to remove Polyps (although Ross's Doc made an exception).
'AL Capshaw'