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21KF-057
Comparison of Temperature and Pain Changes between the Drip and Topical Methods of Sphenopalatine Ganglion Block
Ho Young Gil1, Na Eun Kim, MD2, Jong Bum Choi1

Department of Anesthesiology and Pain Medicine, Ajou University School of Medicine, Suwon, Korea1

Department of Anesthesiology and Pain Medicine, Inha University School of Medicine, Incheon, Korea2

Objective: The objective of this study was to compare facial temperatures and visual analogue scale (VAS) between drip method and topical method of transnasal sphenopalatine ganglion block (SPGB).
Background: The transnasal SPGB is administered to patients with facial or head and neck pain. In the transnasal approach, the drip and topical methods are frequently used. We compared facial temperatures and VAS after transnasal SPGB.
Methods: Medical records of 74 patients who visited the pain clinic and underwent transnasal SPGB were retrospectively reviewed. A total of 156 transnasal SPGB were performed. The patients were divided into the drip-method and topical-method groups. Facial temperatures were measured in six areas of the right and left forehead, maxilla, and mandible before and 30 min after completion of the transnasal SPGB. Temperatures were compared before and 30 min after SPGB in each group and between the two groups. VAS scores were compared at same times of SPGB in each group and between the two groups.
Results: In the drip-method group, there were significant increases at four areas of face in temperature changes at 30 min after SPGB. In the topical-method group, there was no significant difference in the temperature changes at 30 min after SPGB. There were statistically significant differences in the facial temperature changes between the two groups in the right forehead (p=0.001), left forehead (p=0.015), and right maxillary area (p=0.046). In herpes zoster, there were statistically significant differences in the VAS scores between before and 30 min in both groups (p<0.001, p=0.008) and between two groups (p<0.001). In migraine, there were statistically significant differences in VAS scores between before and 30 min in both groups (p<0.001, p=0.004) and between two groups (p=0.014).
Conclusions: Transnasal SPGB using two methods showed different temperature changes and VAS scores.