Management of Perioperative Anxiety by the Cardiac Coherence Technique Coupled With a Hypnosis Session

"An initiation session to cardiac coherence will take place between D-10 and D-7 before the operation (during the anaesthesia consultation) in order to obtain a breathing rate of 6 cycles/min via a free application (Respirelax) with listening to an audio tape.~3 cardiac coherence sessions per day of 5 min (before meals) during the 7 days preceding the operation.~\- The anaesthetic induction will be done with a session of cardiac coherence associated with listening to the audio tape."