Hello...hope you are doing good... Scope of emergency medicine is quite good..average salary is also pretty good...you will have sift wise job...talking about Dubai,it has developed ERs and better daignostic facilities.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3904470/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2760702/ These two links may help you to clear your doubts. Hope this will help you...best wishes for your future.