小儿急性阑尾炎腹部超声诊断错误原因分析

Yoonho Kim, J. Chung
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引用次数: 1

摘要

目的:CT作为小儿急性阑尾炎的诊断工具,因其具有较高的敏感性和特异性而日益增多。然而,由于CT对辐射的严重担忧以及超声检查的便利性和合理的费用,尽管超声在儿童中的敏感性较低,但在急性阑尾炎的初步诊断中仍有价值。本研究旨在探讨影响腹腔镜阑尾切除术患者超声假阴性诊断率的因素。方法:通过病历资料对2002 ~ 2013年汝矣岛圣母医院小儿阑尾切除术病例进行回顾性分析。我们纳入了通过超声检查进行初步筛查的患者。结果:181例患者中sono阳性组156例,sono阴性组25例。两组患者在年龄、性别、体检结果、白细胞计数等方面均无显著差异。但阑尾炎的炎症程度(单纯性,58.3% vs. 32.0%;复杂,41.7%对68.0%)和阑尾位置(前阑尾,85.0%对12.0%;逆行,13.7% vs. 44.0%;盆腔,1.3% vs. 44.0%)两组间差异有统计学意义(超声阳性组vs.超声阴性组;p < 0.05)。结论:阑尾的位置可能是导致超声诊断错误的一个因素,特别是盲肠后型和盆腔型,其坏死或穿孔的风险较高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cause of Abdominal Ultrasound Diagnostic Errors in Children with Acute Appendicitis
Purpose: The use of CT as a diagnostic tool in pediatric acute appendicitis is increasing because of its high sensitivity and specificity. However, due to both the serious concerns about radiation of CT and the convenience and reasonable cost of ultrasound (US) examination, US has value on the initial diagnosis of acute appendicitis despite of the lower sensitivity in children. The purpose of this study was to examine the factors that affect the rate of false negative diagnosis of the ultrasound from the patients who received laparoscopic appendectomy. Methods: The pediatric appendectomy cases from 2002 to 2013 in Yeouido St. Mary’s Hospital have been reviewed through the medical records. We included patients who underwent an initial screening by ultrasound examination. Results: Among 181 patients, 156 patients were the sono-positive group and 25 patients were sono-negative group. There is no significant difference in ages, genders, physical examination findings and white blood cell count between the two groups. But, the degree of inflammation of appendicitis (simple, 58.3% vs. 32.0%; complicated, 41.7% vs. 68.0%) and the appendix position (antececal, 85.0% vs. 12.0%; retrocecal, 13.7% vs. 44.0%; pelvic, 1.3% vs. 44.0%) were significantly different between the two groups (sono-positive group vs. sono-negative group; p<0.05). Conclusion: The position of the appendix may act as a factor that causes an error in the diagnostic ultrasound, especially, in the retrocecal type and the pelvic type with the higher risk of necrosis or perforation.
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