in order to evaluate the effect of liothyronine formulated by iran hormone co.(lt3,ih), 20 patients with primary hypothyroidism received 25mg lt3-ih daily. another 40 hypothyroids were randomly divided into 4 groups and entered a double blind clinical trail. two groups received 37.5 and 50mg ltrih and other two groups took 37.5 and 50mg cytomel (ltr skf). serum t4, t3 and tsh concentrations and...

Brachial plexus block using local anaesthetics is used widely for upper limb surgery. Proper identification of the nerve bundle is very important to inject local anaesthetic. Methods like paresthesia technique, nerve locator technique and ultrasound is used to identify the nerve bundle. The oldest is the parestheia technique and it causes few complications like inadequate block, failed block, i...