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目的:探讨大鼠烫伤前后的痛阈变化及旋转磁场对其的影响。方法:用行为测痛方法先测定大鼠的正常痛阈;再制备Ⅱ度烫伤模型,然后分别测定烫伤后与磁疗后的痛阈。结果:大鼠烫伤后1~2h及1周的痛阈均降低;磁疗1周后痛阈又升高,差异有显著性(P<0.01)。同时还发现磁疗组比对照组创面愈合快、无感染。结论:磁疗参与了烫伤时的镇痛,并可促进创面愈合、水肿及渗出吸收、炎症消散,因此磁疗可以作为烫伤时镇痛、促进创面愈合的辅助疗法
Objective: To investigate the change of pain threshold before and after scald in rats and the effect of rotating magnetic field on it. Methods: The pain threshold was used to measure the normal pain threshold in rats. The second-degree scald model was prepared and the pain thresholds after scald and magnetic therapy were determined. Results: The pain threshold of 1 ~ 2h and 1 week after scald in rats decreased, while the pain threshold increased after 1 week of magnetic therapy, the difference was significant (P <0.01). At the same time, it was found that the magnetic treatment group wound healing faster than the control group without infection. Conclusion: Magnetic therapy is involved in the analgesia during scald and can promote wound healing, edema and exudation absorption and inflammation dissipation, so magnetic therapy can be used as adjuvant therapy for analgesia during burn injury and wound healing