The purpose is to compare the efficacy of combined regional nasal block and general anesthesia versus general anesthesia with dexmedetomidine during endoscopic sinus surgery in optimizing intraoperative surgical field.
This study will be done to compare between two different techniques including regional nasal block and dexmedetomidine in optimizing intraoperative surgical field according to average category scale
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
70
using nasal block including sphenopalatine ganglion block with general anesthesia to optimize surgical field
using dexmedetomidine with induction of general anesthesia to optimize surgical field
Moustafa Rakha
Cairo, Egypt
RECRUITINGOptimizing intraoperative surgical field
Comparison between efficacy of the two techniques in optimizing intraoperative surgical field which will be measured using the average category scale(where grade 0 is defined as no bleeding and grade 5 is defined as severe bleeding, constant suctioning required).
Time frame: Up to 6 months
Heart rate in beat per minute
The heart rate will be measured in (beat/minute) at the commencement of surgery and at each assessment of the surgical field. The average mean values during the surgical procedures will be calculated in each group.
Time frame: Up to 8 months
Blood loss in millilitres
Blood loss will be measured in millilitres as that collected in the suction apparatus and by weight of the nasal swabs.
Time frame: Up to 8 months
endtidal sevoflurane concentration in MAC%
Endtidal sevoflurane concentration will be used as an indicator of inhaled anaesthetic dose. Mean end-tidal sevoflurane concentration will be calculated for each patient as the average of all concentrations recorded will be measured in MAC%
Time frame: Up to 8 months
phentolamine requirements in milligrams
The total dose of additional hypotensive agent (phentolamine) requirements will be measured in milligrams
Time frame: Up to 8 months
Duration of anesthesia in minutes
Duration of anesthesia will be measured in minutes
Time frame: Up to 8 months
Pain assessment with visual analogue scale(VAS)
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Pain intensity will be measured with a 10-cm visual analogue scale (where 0 is defined as no pain at all and 10 as the worst possible pain) at 2, 6 and 12 hours postoperatively.
Time frame: Up to 8 months
Mean blood pressure in mmHg
The mean blood pressure will be measured in mmHg at the commencement of surgery and at each assessment of the surgical field. The average mean values during the surgical procedures will be calculated in each group.
Time frame: Up to 8 months
Duration of surgery in minutes
Duration of surgery will be measured in minutes
Time frame: Up to 8 months