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Blue Digits & Raynaud's Phenomenon

Blue Digits & Raynaud's Phenomenon

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As I sit at my desk staring out the window at a bright, sunny day, I thought I'd share some slides and thoughts from the review course I attended at the recent ACR Conference in San Diego.

Blue Digits do present to rheumatologists. With our moderate Sydney climate, this is not a regular presentation (luckily). It tends to occur around winter and in the context of either confirmed or suspected autoimmune disease.

Here's a summary slide which gives a simple schematic for thinking about cold-associated blue fingers and toes. 

IMG_8714

 

Rheumatologists are often asked to help manage Raynaud's Phenomenon.

Primary Raynaud's phenomenon, also called Raynaud's disease, is the most common form. There is not an associated medical condition. It can be mild and can resolve on its own. 

IMG_8715

 

Secondary Raynaud's phenomenon is caused by an underlying problem. Signs and symptoms of secondary Raynaud's usually appear at a later age, around 40.

Causes of secondary Raynaud's phenomenon include:

  • Connective tissue diseases
    • such as scleroderma, lupus, Sjogren's syndrome and rheumatoid arthritis.
  • Diseases of the arteries
    • such as atherosclerosis (plaque build up in the arteries), Buerger's disease.
  • Repetitive action or vibration
    • examples include activities such as excessive typing or playing piano and operating vibrating tools, such as jackhammers.
  • Smoking
  • Injuries to the hands or feet
    • includes wrist fracture, surgery or frostbite.
  • Medications
    • includes beta blockers, used to treat high blood pressure; migraine medications that contain ergotamine or sumatriptan; attention-deficit/hyperactivity disorder medications; and drugs that cause blood vessels to narrow.

With secondary Raynaud's phenomenon, we would usually attempt to fix or improve the underlying problem (where possible).

In addition to this, the following measures are used (for both primary and secondary forms): 

IMG_8717

 

IMG_8718

 

Raynaud's phenomenon can be really frustrating for both the person suffering it and for the rheumatologist attempting to help it. Warmer weather helps so we're looking forward to summer down under.

What's your experience of blue digits?

 

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