Abstract:

Objective To explore the effect of ultrasound ⁃ guided thoracic paravertebral nerve block on pain⁃relieving during dressing change of mastitis. Methods Ninety⁃six patients with granulomatous mastitis were selected and randomly divided into two groups：the control group（group L，n = 49，receiving local anesthetic infiltration）and the experimental group（group T，n = 47，receiving thoracic paravertebral block）. Vital signs before and after the procedure were recorded. The number of anesthesia complications in group T was recorded. VSA score and regional block time in two groups were recorded. Results There was no significant difference in vital signs between before and after block in group T. There were 23 cases of Horner′s syndrome in group T without serious complications. There were significant differences in analgesia duration and VSA score between the two groups. Conclusion Ultrasound guided thoracic paravertebral nerve block was safe and effective for pain reliving during dressing change of mastitis and had fewer complications，which could improve the therapeutic effect and speed up the recovery.

Key words:

ultrasound guided, thoracic paravertebral block, analgesia, mastitis, dressing change