OUTCOMES |
Type of outcome
|
Outcome
|
Timepoint(s) at which outcome measured
|
Primary Outcome |
Intraoperative consumption of nitroglycerin to maintain the target MAP 55- 65 mmHg. |
intraoperatively |
Secondary Outcome |
estimated blood loss |
intraoperative |
Secondary Outcome |
The number of transfused blood unites |
intraoperatively |
Secondary Outcome |
heart rate (HR) and invasive MAP |
- Basal, during intubation, 1 and 5 min after intubation, every 30 min intraoperatively, then at 1 and 2h postoperatively.
|
Secondary Outcome |
end-tidal isoflurane concentration |
Intraoperatively every 30 min |
Secondary Outcome |
Surgeon satisfaction about the field (scale 0-5) |
at the end of surgery |
Secondary Outcome |
Sedation (by Ramsay sedation scale) |
at 0, 2, 4, 6, 12 and 24h postoperatively |
Secondary Outcome |
The time to the first request of analgesia. |
postoperative |
Secondary Outcome |
Postoperative pain (by VAS 0-10 scale) |
at 0, 2, 4, 6, 12 and 24 h postoperatively. |
Secondary Outcome |
The total morphine consumption |
in the 1st 24 hours postoperatively. |
Secondary Outcome |
Frequency of adverse effects as dizziness, headache, nausea and vomiting, or pruritus. |
during the first 24 h postoperatively. |
Secondary Outcome |
Peak and plateau airway pressures |
after settled prone position |