Détail du document
Identifiant
oai:pubmedcentral.nih.gov:8127...
Sujet
Articles and CommentariesAuteur
Zheng, Shufa Zou, Qianda Wang, Xiaochen Bao, Jiaqi Yu, Fei Guo, Feifei Liu, Peng Shen, Yinzhong Wang, Yimin Yang, Shigui Wu, Wei Sheng, Jifang Vijaykrishna, Dhanasekaran Gao, Hainv Chen, YuLangue
enEditeur
Oxford University Press
Catégorie
Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Année
2020
Date de référencement
30/09/2022
Mots clés
infection influenza clinical time china onset due initiation neuraminidase-inhibitor h7n9 therapy secondary bacterial patients risk infections deathRésumé
BACKGROUND: The high case fatality rate of influenza A(H7N9)-infected patients has been a major clinical concern.
METHODS: To identify the common causes of death due to H7N9 as well as identify risk factors associated with the high inpatient mortality, we retrospectively collected clinical treatment information from 350 hospitalized human cases of H7N9 virus in mainland China during 2013–2017, of which 109 (31.1%) had died, and systematically analyzed the patients’ clinical characteristics and risk factors for death.
RESULTS: The median age at time of infection was 57 years, whereas the median age at time of death was 61 years, significantly older than those who survived.
In contrast to previous studies, we found nosocomial infections comprising Acinetobacter baumannii and Klebsiella most commonly associated with secondary bacterial infections, which was likely due to the high utilization of supportive therapies, including mechanical ventilation (52.6%), extracorporeal membrane oxygenation (14%), continuous renal replacement therapy (19.1%), and artificial liver therapy (9.7%).
Age, time from illness onset to antiviral therapy initiation, and secondary bacterial infection were independent risk factors for death.
Age >65 years, secondary bacterial infections, and initiation of neuraminidase-inhibitor therapy after 5 days from symptom onset were associated with increased risk of death.
CONCLUSIONS: Death among H7N9 virus–infected patients occurred rapidly after hospital admission, especially among older patients, followed by severe hypoxemia and multisystem organ failure.
Our results show that early neuraminidase-inhibitor therapy and reduction of secondary bacterial infections can help reduce mortality.
Characterization of 350 hospitalized avian influenza A(H7N9)-infected patients in China shows that age >65 years, secondary bacterial infections, and initiation of neuraminidase-inhibitor therapy after 5 days from symptom onset were associated with increased risk of death.
Zheng, Shufa,Zou, Qianda,Wang, Xiaochen,Bao, Jiaqi,Yu, Fei,Guo, Feifei,Liu, Peng,Shen, Yinzhong,Wang, Yimin,Yang, Shigui,Wu, Wei,Sheng, Jifang,Vijaykrishna, Dhanasekaran,Gao, Hainv,Chen, Yu, 2020, Factors Associated With Fatality Due to Avian Influenza A(H7N9) Infection in China, Oxford University Press
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