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Risk for Stroke in Atrial Fibrillation
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Submitted on: 3/15/2010 8:49:56 AM
By: Warren Goff
Level: Beginner
User Rating: Unrated
Compatibility:VB 6.0
Users have accessed this code
3174 times.
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Updated(3-14-2010): Risk calculators and dosing algorithms have been expanded and added. It will generate a PDF file report. You will need ijl15.DLL to create the PDF which can be downloaded here (http://2kzc.sl.pt) and is included. A simple program to diagnose Atrial Fibrillation (a heart rhythm abnormality) and one's risk for stroke. It demonstrates dynamic control creation, the derivation of Standard Deviation, Variance and generates a simple Bar Chart. A help file is included and can be previewed here http://2ja3.sl.pt.
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| Other User Comments |
 3/10/2010 10:07:09 AM: Trent Jackson
For get about the risks, focus more on the prevention. 100mg of Asprin daily; the side effects are near none, so therefore the benefits out weigh the risks.
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3/11/2010 9:30:21 PM: Warren Goff
Sorry Trent but the difference in stroke prevention between aspirin (ASA) and warfarin are significant. ASA at most reduces risk by 22% while warfarin decreases it by 62%. The problem is that people at risk are being undertreated (untreated) due to ignorance of the incidence of stroke in af and the risks of therapy. That means by adding warfarin, 13000 strokes would be prevented in the UK alone. I will likely update this version. The website referenced above has links to the compiled version which incorporates additional risk scores and dosing algorithm. I used Chilkat for emailing attachments. I intend to support Winsock here when I can figure out how to send more than one attachment. In addition, atrial fib is an important diagnosis to make for other reasons besides stroke prevention.
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3/11/2010 9:30:39 PM: Warren Goff
Treating with ASA without a diagnosis increases risks of bleeding as well and ASA is not risk-free and has significant risks especially gastrointestinal. If you are interested, I can provide you with the medical references. I don't believe you have done a complete risk-benefit assessment in these regards based on your comment. Finally, newer and safer anticoagulants are being developed which seem to be as safe as ASA and as effective as warfarin such as Dabigatran.
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3/12/2010 5:46:20 AM: Trent Jackson
Bit puzzled by this project (decided to have a look at the code and run it) All things aside though however, because I'm not a doctor -- you really should go and buy a good book on VB6 programming. Things like: Dim TimeH, TimeM, TimeS, TimeS10, TimeS100 As Integer are a no, no in VB6. You are actually declaring what we call variants, not integers. Your code also lacks clarity, coherency and remarks.
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3/12/2010 9:43:07 AM: Warren Goff
I am a self trained programmer. Since college, in 1971, I've had no formal education in programming. I'm sure my code stinks. I need to correct that dim statement as I think some of the code was borrowed. I try to get things done quickly and I never comment. I've never had trouble figuring out what I did despite the spaghetti code. I have been inconsiderate of others in these regards and I apologize.
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3/12/2010 10:44:05 AM: Trent Jackson
There is so much controversy in the world today -- I seriously really do not know what to believe anymore. But I would much prefer a gastrointestinal upset than a stroke. 50mg of asprin taken with food seems wise for anyone with HB. Asprin is arguably a wonder drug in many people's opinion. It protects the cardiovascular system and relieves pain. Clearly a multi-purpose drug.
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3/13/2010 10:31:33 AM: Warren Goff
Here's a nice meta-analysis on aspirin and prevention of CV disease: http://2ktt.sl.pt. It is not relevant to AF and stroke prevention though. My EBM calculator http://2kts.sl.pt on psc might be helpful to some also.
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3/15/2010 10:58:59 PM: T.Jackson
That MD software package that many doctors are currently using would interesting to compete against. You would of course have to be a highly regarded doctor AND a professional computer programmer to pull it off.
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3/16/2010 10:06:29 AM: Warren Goff
The MD package is not a commercial product. They are distributing it free of charge although it isn't open source. I'm not trying to make money on this either. You can find the stuff through the links in the Help File and here: http://2ja3.sl.pt. Thanks for the feedback.
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3/18/2010 4:55:11 PM: T.Jackson
Strange, I could have sworn that my GP told me that the project was worth millions of dollars. I am trying to make money ultimately. I do miss my Twin Turbo 300ZX. A nice girl to go with it would be nice too.
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3/18/2010 5:08:42 PM: T.Jackson
As a programmer you'd have to be that qualified it isn't funny, because this software is dealing with people's lives. Short of having a phd I wouldn't bother.
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3/19/2010 10:14:59 AM: Warren Goff
Thanks Trent. I've considered taking a fellowship in medical informatics but I lack motivation presently. I just code for fun. I appreciate PSC as a place to share what I've come up with but as you've noticed I'm not much of a programmer or a teacher. Best wishes on finding your Sheila, mate. No worries...
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3/20/2010 9:26:18 AM: T.Jackson
Long bay jail. I hear the food is good; the people are even better.
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3/22/2010 10:45:28 AM: T.Jackson
I'll code if for free in C# if you wanna bury all these guys for me.
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