Patient Information   The following information leaflets are for patients who are expecting to have an anaesthetic.  They offer some information about anaesthesia and suggest how and where you can find out more information.  It has been written by patients, patient representatives and anaesthetists, working in partnership.   The series includes the following:   Anaesthesia Explained Anaesthetic choices for Hip and Knee Replacement Epidurals for Pain Relief after Surgery Headache after an Epidural or Spinal Anaesthetic Local Anaesthesia for