Hi Sharmin, Zaini, nice friends,
Hi guys, Thanks for your pleasant welcome. With regards to Sharmin, the thing that I would like to advice is the exessive use of DEXA scan to diagnose and to assess oseteoporosis. I do think that DEXA scan is overated investigation with not much practical use. In my opinion, it actually does more harm than good especially in children.
My reasons are,
1) DEXA scan is Dual Energy X-ray Absorbmetry, it is not important to know how it works but what is important is that it is an investigative tool that useses X-rays. X-rays means irradiations. Irradiations means risk of cell or genetic mutation. Imagine what it would do to the already immature sexual gonads of thalassemic child. Irradiation would also cause damage to the bone marrow function which is important in thalassemic child who needs good bone marrow function to produce new blood. DEXA has much higher irrradiation level than a normal x-ray.
2) Inaccurate comparative results for children and young adults.There are no accurate refferances for DEXA scan in these age group which is the common age group for thallasemic to have osteoporosis. You can get high rate of false positive or false negative.
3) Does the results of the DEXA scan alter the management of Osteoporosis in the Thalassemic child? No, it doesnt at all. Would you stop your osteoporotic preventive regime if the results comes back as normal? No, you still continue the preventive meassures despite the results. Would you increase the dose of the calcium or other medication if the results is low? No, the treatment of osteoporosis is not dose-related as in hypertension or diabetics. You still take the same dose calcium, zinc, forteo, bisphosphonates and still do exercsie.
So why in the world do we do DEXA scan? You see, doctors are thought to to treat patient on "evidence based medicine". It is the right way to treat but not in all diseases. Doctors lost the holistic approach in treating patients. I find the usage of DEXA scan is to treat the doctors and parents, not treating the child. If the results is back to normal, it makes the parents and the doctors happy and if comes back with worse results it adds anxiety to the parents and the doctors but at the end how does the results affect the management and the well being of the child.... NONE. Basically DEXA scan is to treat the parents so that they can sleep better knowing that their child is not osteoporotic but fact remains Thalassemia will have osteoporosis at a much younger age.
As I have said treat your child as a human being not as just figures of a DEXA Scan. If you child is symptomless and happy, why subject them to this harmful irradiation, which serve no practical advantange or change in the management of osteoporosis.Doing once in few years time is alright.
However DEXA scan is a very useful tool to assess the results of a treatment in the experiments of new drugs or in studies of osteoporosis.
Lastly, the main objective in the treatment in all disease is to give them a happy and productive life. Ask yourself if you are overprotective would they be happy? On the other hand you need to caution them to be extra careful. So let them be as happy as they possibly can.
Cheers.