新型冠状病毒肺炎省外输入性病例与本地病例的临床及CT特征分析

Comparison of clinical and chest CT features between imported and local COVID-19

目的:探讨省外输入性新型冠状病毒肺炎(简称新冠肺炎)病例与本地病例的临床及CT表现差异。方法:回顾性分析44例确诊新冠肺炎的流行病学病史、临床及CT资料,其中省外输入8例(输入组),本地36例(本地组)。结果:输入组首诊症状为发热、咳嗽、肌肉酸痛,临床分型以普通型及重型为主(7例);本地组以发热、咳嗽、肌肉酸痛及鼻塞咽痛为主,临床分型以轻型、普通型为主(32例)。2组首诊症状至首次CT检查时间差异有统计学意义(P=0.022)。2组肺叶受累评分差异有统计学意义(P=0.047)。CT分期:输入组早期4例,进展期4例;本地组CT表现阴性2例,早期31例,进展期3例;2组比较差异有统计学意义(P=0.013)。2组病灶分布范围无明显差异。输入组与本地组除局部/亚段肺组织实变外,其余CT表现差异均无统计学意义(均P>0.05)。结论:省外输入性新冠肺炎与本地病例的临床及CT特征有一定差异,胸部CT表现能够在一定程度上反映患者的流行病学特点。

Objectives:To investigate the clinical and chest CT features between imported and local COVID-19.Methods:44 patients diagnosed with COVID-19 were collected.The epidemiological history of the patient,the CT characteristics and the clinical manifestations were analyzed retrospectively.According to epidemiological history,there were 8 imported cases(imported group)and 36 local cases(local group).Results:The first symptom of the imported group was fever,cough and muscle ache,and the clinical classification were mainly common and severe COVID-19(7/8).The first symptom of the local group was chilly,stuffy nasal congestion and sore throat,and the clinical classification was mainly mild and common COVID-19(32/36).Difference in CT review time from the first diagnosis to the clinical symptoms of the two group was statistically significant(P=0.022).Difference in pulmonary involvement scores of two groups was statistically significant(P=0.047).In the imported group,4 cases was early for CT staging,4 cases was progressive.In the local group,2 cases was negative CT findings,31 cases was early,and 3 cases was progressive.The difference was statistically significant(P=0.013).The distribution of lesions in the two groups was mainly in the upper lobe and the back of the lower lobe of both lungs or the extrapulmonary zone.There was no significant difference in CT findings between the imported group and the local group except for local/subsegmental lung consolidation.Conclusions:There are some differences and characteristics between the imported group and the local group in both clinical and CT manifestations.Chest CT findings can reflect the epidemiological characteristics of patients.