Infrazygomatic Versus Intranasal Injection Sphinopalatine Ganglion Blockade Effect on Surgical Field in FESS

"A lateral fluoroscopic view of the face will be obtained with the C-arm by superimposing the mandibular rami on top of each other spinal needle with a slightly bent tip is inserted with lateral fluoroscopic guidance. superiorly and medially toward the sphinopalatine fossa.~(AP) view intermittently obtained to check the depth 0.2 mL of contrast material will be injected to rule out intravascular spread and confirm spread of the dye within the sphinopalatine fossa .Local anesthetic, such as 2 mL of 1% lidocaine will be slowly injected"

method 2 ml Lidocaine with Epinephrine 1/200000 will be injected posterior to meatus of middle concha to block terminal nerve branches of sphinopalatine ganglia