we have one case of # femure age:45, non DM / obese. we planned ST pin+Debridement. I give SA with Lign. Surgery lasted for 45 min. After shifting pt. to ward ,He developed Hypotension, Vomiting. we give fast iv fluids+hemmaccele. Pt. not improved, so we started meph. He developed Ronchi+ Crepitaion . we started Dopa+o2 +fluids+hemmaccele .+Deriphylline. no response. Sao2 falling< we intubated pt .Started IPPV .But pt. detoriated . Ultimately Died. What can be the cause?