Hypnotic interventions are being tested to determine whether they can help prepare patients for the stress associated with surgery. Initial randomized controlled trials--in which some patients received audiotapes with hypnotic techniques (guided imagery, music, and instructions for improved outcomes) and some patients received control tapes--found that subjects receiving the mind-body intervention recovered more quickly and spent fewer days in the hospital.
Behavioral interventions have been shown to be an efficient means of reducing discomfort and adverse effects during percutaneous vascular and renal procedures. Pain increased linearly with procedure time in a control group and in a group practicing structured attention, but remained flat in a group practicing a self-hypnosis technique. The self-administration of analgesic drugs was significantly higher in the control group than in the attention and hypnosis groups. Hypnosis also improved hemodynamic stability.