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Hypnosis in the operating room: everything you need to know

Is the usefulness of hypnosis in the operating room proven?

The usefulness of hypnosis during surgical procedures has been debated for almost thirty years. In a study, Doctor Faymonville evaluated via magnetic resonance imaging (MRI) the activation of brain areas during painful stimuli in hypnotized or non-hypnotized patients.

In this study [1], when patients are hypnotized, far fewer areas of the brain (brain stem, thalamus, pre-frontal cortex, anterior cingulate cortex, etc.) are activated. This result implies that there is a modulation of the perception of pain by the central nervous system.

In parallel, there would be an action at the level of the peripheral nervous system with inhibition of painful reflexes passing through the A delta fibers (“nociceptive” nerve fibers). In the operating room more specifically, the use of hypnosis by trained teams has demonstrated a reduction in pain and anxiety for patients, as well as better patient satisfaction. [2].

In addition, there would be better surgical comfort when patients are under hypnosis. Thus, there is tangible evidence on the effectiveness of this technique in the operating room.

Nevertheless, it is important to understand that in the majority of studies published on the subject, hypnosis is used in combination with anxiolytic or sedative drugs such as benzodiazepines. This concept is called hypnosedation.

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