H2O2造影直肠腔内超声对肛瘘诊治的意义

目的：探讨H2O2造影直肠腔内超声对提高肛瘘病灶检出率及降低复发率的意义。方法：将110例肛瘘患者随机分为常规直肠腔内超声组（以下简称常规组）、H2O2造影直肠腔内超声组（以下简称H2O2组），分别观察常规组和H2O2组主瘘管显影率、支瘘管显影率、内口显影率以及术后复发率。结果：常规组与H2O2组的主瘘管显影率分别为90.9%和92.7%，P＞0.05；支瘘管显影率分别为63.2%和85.4%，P＜0.05；内口显影率分别为49.1%和80%，P＜0.05；术后复发率分别为18.2%和5.5%，P＜0.05。结论：肛瘘患者术前行H2O2造影直肠腔内超声，对于提高肛瘘诊断准确率、微小病灶（支瘘管）检出率及降低术后复发率有重要意义。

Significance of H2O2 Angiography Endorectal Ultrasonography in Diagnosis and Treatment of Anal Fis- tula

Objective To explore the value of higher accuracy rate of diagnosis and lower recurrence rate of endorectal ultrasonography under H2O2 angiography for anal fistula. Methods One hundred and ten cases of anal fistula were randomly divided into regulation group and H2O2 group, then the developing-image situation of main fistula tract, branch ones, internal opening, as well the recurrence rate in both groups were observed. Re-sults The diagnosis rate of main fistula tract in regulation group and H2O2 group was 90.9% and 92.7% respec-tively（P〉0.05）; that of branch tract, 63.2% and 85.4%（P〈0.05）; that of internal opening, 49.1% and 80%（P〈0.05）; the recurrence rate, 18.2% and 5.5%（P〈0.05）. Conclusion H2O2 angiography endorectal ultrasonography of anal fistula is vitally significant to improve the accuracy rate of diagnosis, small lesions （branches of the fistu-la） detection rate and to reduce the recurrence rate to have the vital significance.