Opioids used intra operative increase the amount of opioids needed post operative to control post operative pain. if opioids are given post operative, we assume that more atelectasis and hypoxia takes place even after lung protective ventilation. These postoperative lower oxygen saturations will require giving more frequent oxygen therapy.
This is an observational study where the attending anesthesiologist decides to use opioid free or opioid general anesthesia based on his/her expertise. Every patient gets a lung protective ventilation and emergence from anesthesia using the principles set forward in the consensus meeting by Young C BJA 2019. A lung recruitment followed by high PEEP is given when lung compliance decreases below 40 ML/cmH20. The lowest oxygen saturation without adding oxygen therapy is noted post extubation at moment of admission in PACU, after having given an opioid as analgesic and at moment of discharge from PACU.. If post operative satuation drops below 94% oxygen therapy is given and noted.
Study Type
OBSERVATIONAL
Enrollment
64
opioid anesthesia means using sufentanil during surgery
opioid free anesthesia means giving no opioids during surgery
Azsintjan
Bruges, Belgium
oxygen requirement post operative to maintain saturation above 94%
oxygen saturation
Time frame: first 24 hours post operative
postoperative pain
postoperative pain measured by VAS score
Time frame: first 24 hours post operative
postoperative opioid consumption
postoperative opioid consumption measured by morphine equivalents
Time frame: first 24 hours post operative
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