孕产妇甲型H1N1流感肺炎的影像学特点

目的：探讨孕产妇甲型H1N1流感肺炎的临床及胸部影像学表现特点。方法：依据卫生部甲型H1N1流感诊断标准,回顾性分析7例确诊的孕产妇（孕妇4例,产妇3例）甲型H1N1流感肺炎患者的临床及胸部影像学资料。结果：7例孕产妇甲型H1N1流感肺炎患者中,围产期妇女6例,重症型5例,危重型2例,占住院甲型H1N1流感患者的1.3%（7/520）,占重症及危重型患者的9.2%（7/76）。影像学表现特点：病变分布于双肺下叶5例;病变形态呈大片状影4例,呈小片状影5例;病变呈较高密度实变影5例、磨玻璃影4例;合并单侧或双侧胸膜炎或胸腔积液6例;治疗后,肺部病变大片密度较高实变影在短期内有明显吸收,淡薄影磨玻璃密度影完全吸收。结论：孕产妇是发生甲型H1N1流感肺炎的危险群体,特别是围产期伴有并发症的患者,影像学表现为双肺中叶（舌叶）及下叶大片状或小片状密度较高实变影,多伴有胸腔积液,积极有效治疗可完全康复。

Thoracic imaging characteristics in pregnant/parturient women with influenza A (H1N1) pneumonia

Objective：To investigate the thoracic imaging characteristics in pregnant/parturient women with laboratory-confirmed novel influenza A （H1N1） virus infection.Methods：According to the diagnostic standard of the Chinese Ministry of Public Health about novel influenza A （H1N1）,a retrospective analysis of the clinical and imaging materials in 7 pregnant/parturient women （pregnant 4,parturient 3） with influenza A （H1N1） infection was carried out.Results：Of the 7 pregnant/parturient women with influenza A （H1N1） pneumonia,6 cases were in perinatal period,including severe type （5 cases） and critical type （2 cases）,which accounted for 1.3% （7/520 cases） of hospitalized influenza A （H1N1） patients,and 9.2% （7/76 cases ） of severe/critical patients.The lesions were located at bilateral lower lobes of lung.The predominant imaging findings were large （4 cases） or small patchy consolidations （5 cases）;high density opacities （5 cases） or ground glass opacities （GGO,4 cases）,associated with unilateral or bilateral pleuritis or pleural effusion （6 cases）.After treatment,the pulmonary large high attenuated patchy consolidations were absorbed obviously in short-period,and the GGOs could be completely absorbed.Conclusion：The pregnant/parturient women were one of high-risk groups of influenza A （H1N1） infection,especially for perinatal women with complications.The imaging manifestations included large or small high attenuated patchy consolidations in bilateral middle （lingual） or lower lobes,most of them associated with pleural effusion,which could be fully recovered after effective treatment.