Abstract: AIMS/OBJECTIVES: The onset of a successful caudal block in children is assessed by hemodynamic parameters, swoosh test and anal sphincter tone. Recently, Perfusion Index has been used to assess the onset of epidural anaesthesia in adults. So, we decided to compare Anal sphincter tone and Perfusion index to assess the onset and success of caudal block. MATERIALS AND METHODS: This is an Observational study , 60 children aged 2- 8 years belonging to ASA PS I and II undergoing infraumbilical surgeries were included. Premedicated with syp.Midazolam (0.5mg/kg), IV line was secured and preoxygenated. Inj.Glycopyrrolate (0.01mg/kg), Inj.Ketamine ( 1mg/kg),Inj.propofol(1mg/kg) were given and mask ventilated..........
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