A 56-year-old male was brought into the Emergency Department, he was comatose with hypothermia, hypotonia, hyporeflexia, hypotension, conjunctival injection, slow respiration, acidotic breathing, In ED he was administered Thiamine 100mg IV and got better. What is your diagnosis?

What is the role of Thiamine in this case? *This case is from Docplexus Editorial Team for educative purpose only