FAQ

Does RSD have a genetic element?
This question is being asked about many diseases in this age of increasing genetic literacy, and the straight answer at this stage has to be "don't know". Compared with many other conditions, some of them far less common, there is a sad lack of scientific work being done on RSD. However, enough has been done to indicate that genetics plays a part to some extent. The commonplace fact that it affects twice as many women as men is suggestive in itself. Of greater relevance is a chance discovery made during animal trials a couple of years ago. Some rats were being tested to see if they produced similar symptoms to RSD and the tests proved positive. The laboratory, in eastern USA, then published its results and, in true scientific tradition, a west coast laboratory tried to replicate the results. They came up negative. When both labs tried again and came up with the results they had previously they both checked their methods and realised that the only difference was their source of laboratory rats. One set of breeding stock was susceptible and the other was not.

A recent study suggested that RSD may relate to a fault on chromosome 8, but the study has yet to be replicated and confirmed. In any case, that still leaves a major question about how the condition is actually triggered.

Susceptibility is, of course, the only factor of RSD that we could inherit. RSD/CRPS does not arise spontaneously and the most susceptible person will never suffer the condition unless they fall victim to a triggering event. Reflex Sympathetic Dystrophy follows some kind of physical trauma such as injury or surgery and accidents are not inherited. My own experience suggests that any genetic element is likely to be weak, since my brother, my sister and two of my sons each broke an arm at some stage and never developed RSD. I went through childhood and brought up a family without breaking a limb, despite many falls but, when I did eventually break my arm, I quickly developed RSD.

I guess that most people who ask this question are concerned that their children might suffer the same pain they have to go through themselves. From the evidence to date there seems to be no reason to worry. However, if you have information that may help our understanding on this subject, we'd like to hear from you. If you, or someone you know, have several instances of RSD in the same family, please drop us a line at FAQ@rsdalert.co.uk.
Derrick Phillips - Editor of RSD Alert

Examples -
Debbie and her daughter (Canada)
Allyson and her brother Gregory (Portland, Oregon)

 

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