Sphenopalatine Ganglion Block to Treat Shoulder Pain After Thoracotomy

Patients who are undergoing a thoracotomy will be informed that they may develop moderate to severe postoperative ISP and may have the option to receive an SPG block. The SPG block will be performed every three minutes for 20 minutes, 0.1mL of the 4% lidocaine will be administered through. After 20 minutes and various intervals thereafter the patient will be asked to rate their shoulder pain.