OUTCOMES |
Type of outcome
|
Outcome
|
Timepoint(s) at which outcome measured
|
Primary Outcome |
the time to first postoperative analgesia requirement. |
24 hours |
Secondary Outcome |
2) Postoperative pain severity: in the recovery room, the severity of pain will be assessed using the VAS by study investigators as soon as the patient became alert enough to report pain, at PACU admission‚ every hour for the first 8 hours‚ then every 3 hours. The VAS of the postoperative pain will be recorded as static (during rest) and dynamic (during mobilization) measurements. |
24 hours |
Secondary Outcome |
Intraoperative Needs for nitroglycerin |
intraoperatively |
Secondary Outcome |
Anesthetic requirements (ETiso) just before skin incision then envery 15 minutes till extubation. |
intraoperatively |
Secondary Outcome |
Intraoperative (fentanyl) and postoperative (ibuprofen and meperidine) analgesic requirements. |
intraoperatively |
Secondary Outcome |
Intraoperative mean arterial pressure (MAP), heart rate (HR). MAP and HR will be recorded before induction of anesthesia (baseline); immediately before the block; after skin incision; every 5 minutes intraoperatively; at PACU admission, PACU discharge and at 2, 4, 8, 12, and 24 hours postoperatively. |
preoperatively, intraoperatively and postoperatively |
Secondary Outcome |
Patient discomfort during block performance > using a verbal rating scale (VRS) of 0 to 10. |
during block performance |
Secondary Outcome |
9) Aadverse effects (e.g., nausea, vomiting) and Block related complications Such as, block failure, upper limb motor function, LAST, dizziness, facial flushing, Pneumothorax, hypotension, phrenic nerve affection (diaphragmatic US assessment), hematoma, the side effects of the block (Horner’s syndrome, hoarseness, and subjective dyspnea, which can be caused by ipsilateral stellate ganglion, recurrent laryngeal nerve, and phrenic nerve block, respectively), pneumothorax (US assessment) and the procedural time (time between insertion and removal of the nerve-stimulating needle) will be recorded. |
24 hours |