Seventy patients with an ASA score of I to III, 18 to 80 years old, scheduled for routine anterior cervical spine surgery in the Centro Hospitalar do Porto will be enrolled.
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Patients ASA I-III 2. Between 18 – 80 years old 3. Scheduled for routine cervical surgery 4. Minimum duration of surgery is 90 minutes and performed with total intravenous anaesthesia (TIVA) with the hypnotic propofol, the analgesic remifentanil and the neuromuscular relaxant rocuronium 5. Patients that are able to and do provide a signed informed consent form Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 50 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 20
Exclusion criteria
Exclusion criteria: 1. Patients with neuromuscular diseases and severe cardiac and respiratory pathologies 2. Contra indication for any of the drugs used 3. Not able to complete the baseline PQRS test. 4. Indication to perform tracheal intubation using fibroscopy 5. Patients who are pregnant or nursing
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary end point(s): • BIS signal variability using the measured standard deviation during the maintenance phase of anesthesia • Required effect-site concentrations of remifentanil and propofol ;Timepoint(s) of evaluation of this end point: 3 days; Main Objective: The primary objective of this study is to assess if the use of deep neuromuscular blockade reversed with sugammadex, and the consequent suppression of the EMG activity, can improve the overall stability of an anesthetic procedure (guided using BIS monitoring) and allow a reduction in the amount of anesthetic drugs required for adequate anesthesia. The primary hypothesis is that there is a better anesthetic stability in the deep NMB group (Group 2) and that this is translated as a reduction of the BIS signal variability and a reduction in the required effect-site concentrations of propofol and remifentanil (representative of the total drug consumption). ; Secondary Objective: As a secondary objective, we will study the quality of recovery using the PQRS scale to see if maintaining a deep NMB level during surgery has an impact on the patients’ quality of recovery. The secondary hypothesis is that the quality of recovery (PQRS test) is better in the patients of Group 2. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): • PQRS results at 15 and 40 minutes after surgery (taking into account the patient baseline values of the PQRS test done on the pre-anesthetic visit) • PQRS results at day 3 after surgery ;Timepoint(s) of evaluation of this end point: 3 days | — |
Countries
Portugal
Contacts
Centro Hospitalar do Porto