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目的比较镓铝砷(gallium aluminium arsenide,GaAlAs)半导体激光和He-Ne激光穴位照射治疗小儿慢性腹泻(infantile chronic diarrhea,ICD)的疗效。方法 ICD患儿100例,随机分为两组:半导体激光照射组50例,其中小肠病变和结肠病变各25例;He-Ne激光穴位照射组50例,其中小肠病变23例和结肠病变27例。半导体激光组,照射波长830 nm,取神阙、双侧大肠俞和天枢穴,功率密度318mW/cm2,每穴照射10 min,每日1次,10次为1个疗程,均治疗两个疗程。He-Ne激光组,照射波长632.8 nm,治疗方法同半导体激光组。治疗结束后,比较两组患儿的临床疗效。结果半导体激光组,治愈38例(76.0%),好转9例(18.0%),无效3例(6.0%);He-Ne激光组治愈27例(54.0%),好转13例(26.0%),无效10例(20.0%),半导体激光组疗效好于He-Ne激光组(P<0.05)。结果表明,年龄>5岁、病程3~5个月患儿均以半导体激光组疗效较好(P<0.05);两组均以小肠病变疗效好于结肠病变(P<0.01);治疗后排便平均次数,半导体激光组少于He-Ne激光组(P<0.05)。结论镓铝砷半导体激光穴位照射治疗ICD疗效好于He-Ne激光组,可作为激光穴位照射治疗ICD的首选方法。
Objective To compare the efficacy of gallium aluminum arsenide (GaAlAs) semiconductor laser and He-Ne laser acupoint irradiation in infantile chronic diarrhea (ICD). Methods 100 children with ICD were randomly divided into two groups: 50 in semiconductor laser irradiation group, 25 in intestinal lesion and colonic lesion; 50 in He-Ne laser acupoint irradiation group, including 23 cases of small intestine lesion and 27 cases of colon lesion . In the semiconductor laser group, the irradiation wavelength was 830 nm. The Shen Que, bilateral Dukeshu and Tianshu points were taken. The power density was 318 mW / cm2. Each point was irradiated for 10 min. He-Ne laser group, the irradiation wavelength of 632.8 nm, the same treatment with the semiconductor laser group. After treatment, the clinical efficacy of the two groups were compared. Results In the semiconductor laser group, 38 cases (76.0%) were cured, 9 cases (18.0%) were improved and 3 cases (6.0%) were not cured. He-Ne laser group was cured in 27 cases (54.0% In 10 cases (20.0%), the effect of semiconductor laser group was better than He-Ne laser group (P <0.05). The results showed that the efficacy of the semiconductor laser group was better than that of the semiconductor laser group (P <0.05). The efficacy of the small intestine lesion in both groups was better than that of the colonic lesion (P <0.01) The average number of semiconductor laser group than the He-Ne laser group (P <0.05). Conclusion Gallium Al-arsenide semiconductor laser acupoint irradiation in ICD is better than He-Ne laser group, which can be used as the preferred method of laser acupoint irradiation for ICD.