SARS患者康复期肺功能评价

目的研究严重急性呼吸综合征(severeacuterespiratorysyndrome,SARS)患者康复期肺功能状态。方法随访康复出院的SARS患者89例,了解其症状、体征和并发症,测定肺功能。并对肺功能各项指标与临床指标作相关性分析。结果复查的时间距离发病时间平均为(2.90±0.44)个月(1.8～4.2个月),距离出院时间为(1.75±0.53)个月(0.5～3.4个月)。48例(53.9%)存在肺功能异常,多数为轻度异常,其中,单纯弥散障碍38例(42.7%),弥散障碍合并限制性通气功能障碍7例(7.9%),弥散障碍合并阻塞性通气功能障碍1例,单纯限制性通气功能障碍1例,单纯1秒钟呼气容积(forcedexpiratoryvolumeinthefirstsecond,FEV1)下降1例。病程中有呼吸困难症状和康复期胸部CT异常者一氧化碳弥散量(diffusioncapacityforcarbonmonoxide,DLCO)和肺总量(totallungcapacity,TLC)下降更明显。结论SARS患者康复期存在轻度的肺功能损害,以弥散障碍为主,其次是限制性通气功能障碍。

Assessment of pulmonary function in SARS patients during the convalescent period

OBJECTIVE: To investigate the pulmonary function in severe acute respiratory syndrome (SARS) patients during the convalescent period. METHODS: Followup 89 outpatients of SARS. The follow-up study included interview, physical examination, and pulmonary function test. RESULTS: The interval between hospital discharge and functional assessment was 1.75 +/- 0.53 months (0.5-3.4 months). Mild to moderate abnormalities in pulmonary function were found in 48 patients (53.9%). Diffusion capacity for carbon monoxide (DLco) was impaired in 38 patients (42.7%); in 7 patients (7.9%), lung function was restrictive defect combined DLco impairment; Other patterns of impairment were revealed in 3 patient. Dyspnea during acute phase and CT during the convalescent period were found to have significant influences on DLco and total lung capacity (TLC). CONCLUSIONS: Diffusing capacity impairment as well as restrictive defect persist in convalescence SARS.