Effectiveness of effect of relaxation therapy with guided imagery on anxiety and pain in patients undergoing stomach reduction surgery

INTERVENTION: Behavioural Experimental group: Patients (n = 12) received relaxation therapy with guided imaging, in the immediate preoperative period (up to 24 hours before surgery) and in the immediate postoperative period (up to 24 hours after surgery), performed by the researcher, trained to the use of this technique. The therapy was conducted by means of headphones connected to an MP3 player, with an audio recording, lasting 20 minutes. The session begins with soft background music, with sounds of nature (sea and seagulls), and an audio that leads the patient to perform various commands. The patient is asked to stand in a comfortable position on the bed with his eyes closed, and is then conducted to perform breathing and relaxation movements on various parts of the body. Afterwards, the audio leads the patient to imagine himself on a beach where he walks barefoot on the soft sand ... and continues to guide until the patient feels completely well, in peace, without worries, anxiety, tensions, anguish and pain. Then lead the patient to open his eyes very slowly and let himself be comfortable. Control group: Patients (n = 12) received standard care in the immediate preoperative period (up to 24 hours before surgery) and in the immediate postoperative period (up to 24 hours after surgery). Standard care consisted of resting in the bed and wearing non‐audio headphones, connected to an MP3 player, for 20 minutes. F04.754.137 CONDITION: C23.550.767.700 F00‐F99 F01.470.132 Postoperative pain;Anxiety ; C23.550.767.700 ; F01.470.132 PRIMARY OUTCOME: Reduced levels of cortisol, interleukin‐1?, interleukin‐6, interleukin‐8 and tumor necrosis factor‐? (TNF‐?). And increased levels of interleukin‐10. In the immediate postoperative period. Reduction of postoperative pain intensity. Scores below 3 measured by the Visual Analogue Scale. In the immediate postoperative period.; ; ; SECONDARY OUTCOME: Reduction of anxiety scores. Score below 30 measured by IDATE ‐ Inventory of State‐Trait Anxiety ; INCLUSION CRITERIA: Patient submitted to bariatric surgery by videolaparoscopy.