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What Causes A Red Knot Behind The Calf While On Plavix?

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Posted on Fri, 10 Jun 2016
Question: Hi, my husband has a history of DVT in both lower extremities. Has been taking Warfarin for several years. He has a diagnosis of Factor V Leiden. Recently, his physician changed his medication from Warfarin to Plavix. Yesterday, he developed a knot on the back of his left calf that has redness and very tender to the touch. It does have some warmth. He is also limping. Could this be another DVT? Should we be concerned?
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Answered by Dr. Lilit Baghdasaryan (27 minutes later)
Brief Answer:
Most probably inflammation

Detailed Answer:
Dear Mrs,

If there is redness and some warmth, then most probably it is an inflammation.
But I think it was not a good idea to change warfarin to plavix to a patient with factor V Leiden, especially with a history of two DVTs, unless there are serious contraindications to warfarin.

Hope this was helpful

Wishing a good health to your husband

In case of further questions don't hesitate to ask

Regards,
Note: For further queries related to coronary artery disease and prevention, click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Lilit Baghdasaryan

Cardiologist

Practicing since :2007

Answered : 1536 Questions

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What Causes A Red Knot Behind The Calf While On Plavix?

Brief Answer: Most probably inflammation Detailed Answer: Dear Mrs, If there is redness and some warmth, then most probably it is an inflammation. But I think it was not a good idea to change warfarin to plavix to a patient with factor V Leiden, especially with a history of two DVTs, unless there are serious contraindications to warfarin. Hope this was helpful Wishing a good health to your husband In case of further questions don't hesitate to ask Regards,