目的探讨对有症状无体征腹痛患者进行治疗性观察的效果，并介绍五种层次患者的分流方式。
Objective to investigate the effects of remedial observation on the patient which has symptomatic but non-signed bellyache, and introduce five layer of these patients shunt way.
星状神经节阻滞期间两组患者生命体征平稳，组间比较差异无显著性。
The life signs of the two groups were stable during SGB, there was no significant difference.
由于临床症状和体征无特异性，影像诊断起了重要的作用。
Clinical signs and symptoms of PE are often nonspecific, so imaging has played an important role in the diagnosis.
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