Study of the use of dexmedetomidine for cystoscopy, hysteroscopy and transrectal ultrasound guided biopsy of the prostate (TRUS biopsy)

Hysteroscopies and cystoscopies are typically done under general anaesthesia in our hospital network. TRUS biopsies are typically done under deep sedation. While these methods are considered very safe as practised in Australia, they still carry risks (including obstruction of the airway and cessation of breathing.) Dexmedetomidine is a sedative agent that is considered stable as far as the airway and breathing is concerned. This study will assess whether these procedures can successfully be performed using a regimen based on dexmedetomidine. When having a general anaesthetic, patients require an artificial tube to be placed into the back of their throat or windpipe. When using a regimen based on dexmedetomidine, it is predicted that patients will not need that tube, and will be able to breath without it.