间断腹痛儿童肠系膜淋巴结的超声检测及临床意义

Ultrasonic Detection of Mesenteric Lymph Nodes in Children with Intermittent Abdominal Pain

目的明确超声检测间断腹痛儿童肠系膜淋巴结的临床意义。方法把196名因不同原因接受腹部超声检查的患儿分为间断腹痛组和无腹痛组,记录肠系膜淋巴结的位置、大小、数量。结果无腹痛组不同年龄段肠系膜淋巴结的长径均值有差异(P=0.005),短径/长径比值有差异(P=0.015),短径无显著差异(P=0.773);无腹痛组中不同性别间淋巴结各径线均值无显著差异;两组间短径≥6mm的淋巴结发生率有显著差异(P=0.002);两组间长径≥14mm的淋巴结发生率有显著差异(P=0.007)。结论超声检查可以把短径大于6mm视为肿大的肠系膜淋巴结,但不应作出肠系膜淋巴结炎的诊断。肿大淋巴结在无症状儿童中很常见,更多的相关患儿有待于进一步明确病因。

Objective To examine the clinical application of ultrasonography to detection of mesenteric lymph nodes in children with intermittent abdominal pain.Methods A total of 196 children who underwent abdominal ultrasonography for different reasons were divided into the intermittent abdominal pain group and non-abdominal pain group.The location,size and number of mesenteric lymph nodes were recorded.Results Statistical difference in the long-axis diameter（P=0.005）and ratio of short-to-long-axis diameter was found among patients with different ages in non-abdominal pain group（P=0.015）,while no significant difference was seen in short-axis diameter（P=0.773）.No significant difference was observed in the diameter of each axis between different genders in non-abdominal pain group.There was a statistical difference between abdominal pain group and non-abdominal pain group in the incidence of lymph nodes with short-axis diameter of 6mm and larger（P=0.002）and longaxis diameter of 14 mm and larger（P=0.007）.Conclusion Mesenteric lymph node with short-axis diameter larger than 6mm should be considered enlarged in children,but should not be diagnosed with mesenteric lymphadenitis.It＇s common to find enlarged mesenteric lymph nodes in children without abdominal pain.Further investigations with a larger number of patients are required to confirm these findings.