Hi,
Are you sure that your child is not major but intermedia? Because I really doubt a thal major child would maintain Hb levels, but intermedia's can.
Sorry, I'm not aware of any docs or healthcare facilities in Bengal. But others might be knowing.
And don't worry, there was no harm done. Keeping low Hb just makes your child have mood swings and such things but long term of these may affect development and growth of his body so make sure you transfuse your child by keeping Hb around 9.5 or above it (low Hb also causes more workload for heart to pump oxygen and purify blood, so you don't want this to happen) while using chelator to chelate iron out of his body.
There is a topic somewhere here where Andy mentions all necessary pre-tranfusion and other half a yearly and yearly tests.
The most common tests that need to be done before transfusion are CBC (Complete Blood Count), SGPT/SGOT (ALT/AST - liver function tests), Serum Creatine (kidney function), that's it I guess.
Other tests such as HIV, Hepatitis should be carried out once in every six months. And yearly tests may include some mineral tests (such as calcium, zinc, vitamin e), FBS (Fasting Blood Sugar), Vitamin D. And when your child starts growing old (around 8 and above), tests such as BMD (Bone Mineral Density/Dexa Scan), etc should be done for proper management and to ensure normal growth response.
Also, one golden rule - keep ferritin as low as you can (around 500 is best). As long as the ferritin and Hb (greater than 9) is normal and within norms, your child will grow normally.
I also recommend reading below topic by Sharmin as it will give you a great insight:
http://www.thalassemiapatientsandfriends.com/index.php/topic,4669.0.htmlBest,
-P.