The patients scheduled for laparoscopic cholecystectomy will be allocated to 3 groups. Group A and B patients will listen to a positive message under general anesthesia. Group C patients will not listen to the message. The postoperative pain, analgesic consumption and frequency of nausea, vomiting and emergence agitation episodes will be documented and compared between the 3 groups.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
5
The message "You are in the operating room. Everything is going very well. When you wake up you will be very calm, you will not feel pain and you will not have nausea" will be played in greek language by headphones to the patient when the Bispectral Index (BIS) is 40-60.
The message "You are in the operating room. Everything is going very well. When you wake up you will be very calm, you will not feel pain and you will not have nausea" will be played in greek language by headphones to the patient when the Bispectral Index (BIS) is 20-40.
The headphones will be placed on patient's ears but no message will be played.
424 Army General Hospital Department of Anesthesia
Thessaloniki, Greece
Pain Intensity.
The patients will be asked to evaluate their postoperative pain by using the 11grade Numerical Rating Scale (0 no pain, 10 maximum possible pain). Pain will be evaluated in supine position, after cough and after change of position from supine to standing.
Time frame: Within an average of 15 minutes after emergence from general anesthesia.
Postoperative paracetamol consumption.
The patients will be instructed to ask for analgesics as needed. When rescue analgesia is required 1000mg paracetamol will be administered. The frequency of paracetamol administration will be documented.
Time frame: 24 hours after emergence from general anesthesia.
Postoperative tramadol consumption.
If the administration of paracetamol doesn't relieve postoperative pain and the patients continues to ask for analgesia, 100mg tramadol will be administered. The frequency of tramadol administration will be documented.
Time frame: 24 hours after emergence from general anesthesia.
Emergence agitation (yes/no).
The patients' mental status will be evaluated with the 7grade Riker's Agitation-Sedation Scale. If the patient has a score of 5 or greater he will be documented as a case of emergence agitation.
Time frame: Within an average of 10 minutes after emergence from general anesthesia.
Postoperative nausea.
The frequency of episodes of nausea will be documented.
Time frame: 24 hours after emergence from general anesthesia.
Postoperative vomiting.
The frequency of episodes of vomiting will be documented.
Time frame: 24 hours after emergence from general anesthesia.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Pain Intensity.
The patients will be asked to evaluate their postoperative pain by using the 11 grade Numerical Rating Scale (0 no pain, 10 maximum possible pain). Pain will be evaluated in supine position, after cough and after change of position from supine to standing.
Time frame: 1 hour after the end of surgery.
Pain Intensity.
Numerical Rating Scale (0 no pain, 10 maximum possible pain). Pain will be evaluated in supine position, after cough and after change of position from supine to standing.
Time frame: 6 hours after the end of surgery.
Pain Intensity.
Numerical Rating Scale (0 no pain, 10 maximum possible pain). Pain will be evaluated in supine position, after cough and after change of position from supine to standing.
Time frame: 12 hours after the end of surgery.
Pain Intensity.
Numerical Rating Scale (0 no pain, 10 maximum possible pain). Pain will be evaluated in supine position, after cough and after change of position from supine to standing.
Time frame: 24 hours after the end of surgery.
Explicit memory.
The patient will be asked to answer the modified Brice questionnaire in order to investigate for explicit memory of the intraoperative message or other events.
Time frame: 24 hours after emergence from general anesthesia.