Anesthesia
Conditions
Keywords
Analgesia/nociception index, Desflurane, Remifentanil, Orthopedic surgery, Ear-nose-throat surgery, Hemodynamic reactivity
Brief summary
The aim of this study is to evaluate the performance of Analgesia/Nociception Index for the prediction of hemodynamic reactivity in adult patients undergoing ear-nose-throat or lower limb orthopedic surgery on desflurane/remifentanil general anesthesia.
Detailed description
Measurement of analgesia/nociception index at different time points during procedure and assessment of analgesia/nociception index to predict hemodynamic reactivity by building receiver observer's characteristic curve.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Age 18-75 years * Ear-nose-throat or lower limb surgery * General anesthesia using desflurane and remifentanil
Exclusion criteria
* Age \<18 yrs or \>75 yrs * Arrythmia * Preoperative use of B-blockers * Administration of anticholinergic drugs or neuromuscular blockade reversal in the 20 previous minutes * Psychiatric diseases * Autonomic nervous system disorders (epilepsy)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in heart rate and/or systolic blood pressure by more than 20% within 5 minutes | Before induction of anesthesia, 1 min after incision, at steady-state anesthesia during procedure (an expected average of 30 min) and at arousal from general anesthesia in the end of procedure (an expected average of 60 min) |
Countries
France