土豆片联合热敷对预防肌注后硬结的疗效观察

目的比较单用热敷法与热水袋＋土豆片湿热敷法预防肌注后硬结发生的疗效，寻找预防长期肌注后硬结的最有效方法。方法选择120例肌注黄体酮的患者，采用自身对照，在每例患者的两侧臂大肌首次注射后，分别用热敷法（热敷组）和热水袋＋土豆片湿热敷（联用组），观察患者注射局部硬结的发生率，疼痛程度。结果联用组较热敷组局部硬结的形成及疼痛发生率低，两者比较差异有统计学意义（P〈0．001）。结论联用法预防肌注后硬结的发生，减轻患者疼痛效果优于单用热敷法。

The efficacy of potato chips combined with hot compress in the prevention of callus formation after intramuscular injections

Objective To compare the efficacy of hot compress alone with that of hot water bag plus warm moist compress with potato chips in the prevention of callus formation after intramuscular injections, and the seek the most effective method to prevent calluses caused by chronic intramuscular injections. Methods A self-controlled study were conducted on 120 patients who received intramuscular injections of progesterone. Hot compress and hot water bag plus warm moist compress with potato chips were applied on the deltoid muscle in each arm after the patients received first injection. The incidence rate of callus at the injection site and the pain levels were observed in all the patients. Results The incidence rates of injection-induced pain and callus formation were lower in the group with hot water bag plus warm moist compress with potato chips than the group with hot compress alone, with a statistical difference （ P 〈 0.001 ）. Conclusions Hot water bag plus warm moist compress with potato chips is superior to hot compress alone in the prevention of callus formation and the relief of pain after intramuscular injections.