Objective To explore the risk factors related to severe cases of severe acute respiratory syndrome (SARS) in order to find the early warning signs of deterioration of this disease.

目的探讨重症急性呼吸综合征（SARS）患者中与重症发生相关的危险因素，寻找发生重症的早期预警指标。

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Conclusion Circulatory acute intestinal obstruction is an uncommon disease without specific symptoms and signs and is difficult to diagnosis before operation.

结论缺血性肠梗阻少见。临床表现无特异性，术前难以诊断。

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