The purpose of this study is to investigate the incidence of intravascular injection during trigeminal nerve blocks.
The patients who already scheduled for trigeminal nerve blocks will be randomized in a 1:1 ratio to tuohy needle group or quincke needle group after being informed about the study.
Study Type
OBSERVATIONAL
Enrollment
200
Trigeminal nerve or branch block using 22 gauge Quincke or Tuohy needle under fluoroscopic guidance.
Seoul National University Hospital
Seoul, South Korea
RECRUITINGIV uptake prevalence (%)
The incidence of intravascular injection during the procedure by digital subtraction angiography(DSA).
Time frame: During the procedure
Difference in incidence of intravascular injection
Difference in incidence of intravascular injection according to needle type by DSA.
Time frame: During the procedure
Total incidence of blood aspiration
Total incidence of blood aspiration by regurgitation.
Time frame: During the procedure
Total incidence of intravascular injection
Total incidence of intravascular injection under non-DSA technique.
Time frame: During the procedure
The depth of inserted needle when the practitioner check the intravascular uptake under DSA technique.
The depth of inserted needle when the practitioner check the intravascular uptake under SDA technique.
Time frame: During the procedure
The number of needle adjustment.
The number of needle adjustment due to the intravascular uptake.
Time frame: During the procedure
Total volume of local anesthetics for skin anesthesia.
Total volume of local anesthetics for skin anesthesia.
Time frame: During the procedure
Time for the procedure.
Time for the procedure.
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Time frame: During the procedure
Total amount of radiation exposure for the procedure.
Total amount of radiation exposure for the procedure.
Time frame: During the procedure
Laterality
The difference in incidence by the lateriality.
Time frame: During the procedure
Final pattern of the fluoroscopic image
The quality of the image(3: excellent, 2: acceptable, 1: not relevant)
Time frame: During the procedure
Post-procedure pain
NRS pain score after the procedure in recovery room
Time frame: Within 1 hour after the procedure.
The difficulty of the procedure
The difficulty grade by the practitioner(5:very easy, 4: relatively easy, 3:so so, 4:somewhat difficult, 1:very difficult)
Time frame: Within 1 hour after the procedure.
The difference in incidence of blood aspiration
Difference in incidence of intravascular injection according to needle type by regurgitation.
Time frame: During the procedure.
The difference in incidence of intravascular injection.
Difference in incidence of intravascular injection according to needle type by non-DSA technique.
Time frame: During the procedure