• Meng-Jer Hsieh, Wei-Chun Lee, Hsiu-Ying Cho, Meng-Fang Wu, Han-Chung Hu, Kuo-Chin Kao, Ning-Hung Chen, Ying-Huang Tsai, and Chung-Chi Huang.
• Department of Pulmonary and Critical Care Medicine, Chia-Yi Chang-Gung Memorial Hospital, Chang-Gung Medical Foundation, Chiayi, Taiwan.
• Influenza Other Respi Viruses. 2018 Sep 1; 12 (5): 643-648.

BackgroundAcute respiratory distress syndrome (ARDS) due to severe influenza A H1N1 pneumonitis would result in impaired pulmonary functions and health-related quality of life (HRQoL) after hospital discharge.ObjectivesThe recovery of pulmonary functions, exercise capacity, and HRQoL in the survivors of ARDS due to 2009 pandemic influenza A H1N1 pneumonitis (H1N1-ARDS) was evaluated in a tertiary teaching hospital in northern Taiwan between May 2010 and June 2011.Patients And MethodsData of spirometry, total lung capacity (TLC), diffusing capacity of carbon monoxide (DLCO ), and 6-minute walk distance (6MWD) in the patients survived from H1N1-ARDS were collected 1, 3, and 6 months post-hospital discharge. HRQoL was evaluated with St. George respiratory questionnaire (SGRQ).ResultsNine survivors of H1N1-ARDS in the study period were included. All these patients received 2 months' pulmonary rehabilitation program. Pulmonary functions and exercise capacity included TLC, forced vital capacity (FVC), forced expiratory volume in the first second (FEV1 ), DLCO , and 6MWD improved from 1 to 3 months post-hospital discharge. Only TLC had further significant improvement from 3 to 6 months. HRQoL represented as the total score of SGRQ had no significant improvement in the first 3 months but improved significantly from 3 to 6 months post-discharge.ConclusionThe impaired pulmonary functions and exercise capacity in the survivors of H1N1-ARDS improved soon at 3 months after hospital discharge. Their quality of life had keeping improved at 6 months even though there was no further improvement of their pulmonary functions and exercise capacity.© 2018 The Authors. Influenza and Other Respiratory Viruses Published by John Wiley & Sons Ltd.

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