Intra-aerial injection of thiopentone. All true except:-
If other measures fail then we can go for stellate ganglion block. Intra-aerial injection may cause acute, severe extremity ischaemia and gangrene. The degree of injury is related to the concentration of the drug. Treatment: Theneedle should not be removedand saline is administered the same needle so as to dilute the drug Administering heparinto prevent thrombosis aery dilators can be used Brachial plexus block or stellate ganglion blockto relieve vasospasm
Intra-aerial thiopentone can form crystals in aerioles & capillaries and cause intense vasoconstriction
It should be treated promptly with papaverine and lidocaine
Treatment of choice is stellate ganglion block
Heparinization can also be done
Intravenous Anesthetic Agents