Atrial Fibrillation (AFib) Support Group
Atrial fibrillation (AF or afib) is an abnormal heart rhythm (cardiac arrhythmia) which involves the two small, upper heart chambers (the atria). Heart beats in a normal heart begin after electricity generated in the atria by the sinoatrial node spread through the heart and cause contraction of the heart muscle and pumping of blood.

The good news is that the cardiologist has cleared me to resume my normal workout in the gym, just don't try to lift anything too heavy. I xsee the EP in two weeks.
I want to make sure I correctly interpret what you both said.
Petey said
"Pradaxa is the most effective in reducing strokes (34% less than Coumadin as compared to Eliquis at 21% less and Xarelto 12% less) according to the neutral websites that compare the 3 drugs as measured against Coumadin."
AcrossthePond said,
" ...compared to Coumadin the total time in range was 50 - 65%."
My Interpretation and please correct me if I am wrong:
Compared to a group of patients on coumadin whose INR was in range 50 to 65% of the time, 34% fewer patients on Pradaxa had a stroke; 21% fewer patients on Eliquis had a stroke adn 12% fewer patients on Xarelto had a stroke. Is that the correct interpretation? Thanks very much for taking the time to answer it.
So if the group of coumadin patients who had strokes was 100, then the comparison results would look like
Patients who had a stroke by drug taken:
Coumadin Pradaxa Eliquis Xarelto
100 66 79 88
That's correct, however, for those on Coumadin that can stay in range and who self monitor to verify, Coumadin would perform better for those people. So they would have essentially the same protection as Pradaxa.
As a group, though, people don't stay in INR range very well.
Another consideration is your CHA2DS2Vasc score. If it is 1 or 2, the anticoagulants don't move the "absolute" risk that much.
There are so many factors. For example, for someone over 75 years old, Eliquis is probably a better choice as it is the safest "bleed-wise".
Everyone is different.
petey
I'm not sure I understand how a drug that is taken twice a day (that's 12 hours per dose) has a half-life of 5-9 hours and still works well in the last 3 hours of each dose.
Half-life is the time it takes for the concentration of a drug in your system to drop by 50%. So if it has a 5 hour half life for a young person, Xarelto would be at 50% strength by the 5th hour. In the 10th hour, 50% of 50% would be eliminated, for a total of 75% eliminated in just 10 hours.
Does anyone understand this?
petey
Paul, great news about being able to do your normal workout again !
As I mentioned to Petey in another thread the other day that focusing of writing software has helped me clear up some of the concentration and mental drifting issues I had experienced after the stroke that lingered for a good eight weeks. Nothing like a little C programing to make you focus ;-}
My monthly blood tests since August of 2010 has been in INR range 95%-99% of the time. With that being the case he sees no need for me to consider the newer anticoagulants. One thing he said, (probably my only fear re: AF) was that one day I wouldn't self-convert. He followed that by saying that might be 10 years down the road. I think that was to make me feel better. In any event when not if that happens hr assured me we'd deal with it.
Re; Computers. My ex was a mathematician. Not too many jobs available aside from teaching. In the 50's he got in on the ground floor of computing. A Burroughs computer was installed at than Wayne University(now Wayne State). It took up a whole floor with huge equipment and air conditioning. Also used IBM cards. Later my ex got a job with IBM in NY. Now my iPad can do more.
I seem to remember, you keep a pretty low HR when you go into Afib.
Glad you are doing so well!!!!!!
"Knowledge = Options = Power"
Annette
I hope all goes well at the doctors today for you,
take care,
atp