Traditional Chinese medicine injection for pandemic influenza A(H1N1) cases of serious condition: a prospective, multicentre, pragmatic randomized loading controlled trial

INTERVENTION: Control group:routine western medicine treatment;Trial group:traditional Chinese medicine injection combined wi;Trial group :traditional Chinese medicine injection combined with routine western medicine treatment: application of Reduling Injection, Xiyanping Injection and Danshen Injection according to TCM syndromes and drug lables ;Total :NA; CONDITION: pandemic influenza A(H1N1) cases of serious condition PRIMARY OUTCOME: fever clearance time;conversion of critical condition;length of sta; SECONDARY OUTCOME: symptoms;safety outcomes;clearance time and negative rate of pandemic influ;direct medical cost;APACHE II scores;the days and parameter variation of respirator uti;incidence of complication; INCLUSION CRITERIA: (1) Meet with the diagnostic standard of pandemic influenza A(H1N1) cases of serious condition including suspected cases, clinical diagnosis cases, confirmed cases, and belonging to toxic heat obstructing lung syndromes; (2) age: 6 and over; (3) patients or their guardians agree to participate in randomized controlled trials and signed the informed consent