Sphenopalatine Ganglion Block with Bupivacaine and Its Effect on Pain After Functional Endoscopic Sinus Surgery

The sphenopalatine block will be done by the end of the operation using a trans-oral approach at the greater palatine foramen with the help of a Macintosh blade number 3 for good visualization of the hard and soft palate using a 25 Gauge 1.5 inch needle curved at 45 degrees 25 mm from the tip and filled with 1.5 ml of normal saline. The greater palatine foramen is located posteromedial to the third maxillary molar and anteromedial to the pterygoid hamulus and maxillary tuberosity. The foramen will be identified by digital palpation, and the needle will be inserted until reaching the bone then redirected slightly until the foramen is localized and the needle easily gets in the greater palatine canal. aspiration will be done to ensure that no blood vessels are punctured, and the solution will be injected.

The sphenopalatine block will be done by the end of the operation using a trans-oral approach at the greater palatine foramen with the help of a Macintosh blade number 3 for good visualization of the hard and soft palate using a 25 Gauge 1.5 inch needle curved at 45 degrees 25 mm from the tip and filled with 1.5 ml of bupivacaine. The greater palatine foramen is located posteromedial to the third maxillary molar and anteromedial to the pterygoid hamulus and maxillary tuberosity. The foramen will be identified by digital palpation, and the needle will be inserted until reaching the bone then redirected slightly until the foramen is localized and the needle easily gets in the greater palatine canal. aspiration will be done to ensure that no blood vessels are punctured, and the solution will be injected.