scholarly journals ECMO Support for Influenza A: Retrospective Review of the ELSO Registry Comparing Seasonal and Pandemic Subtypes

2021 ◽  
Author(s):  
Erika R O'Neil ◽  
Huiming Lin ◽  
Meng Li ◽  
Lara Shekerdemian ◽  
Joseph E. Tonna ◽  
...  
Keyword(s):  
Hospital Discharge ◽  
Influenza A ◽  
Seasonal Influenza ◽  
Life Support ◽  
Extracorporeal Life Support ◽  
Severity Of Illness ◽  
Patient Characteristics ◽  
Severe Illness ◽  
Pandemic H1n1 ◽  
Influenza A H1n1

Abstract Background: While there is substantial published experience of ECMO during the H1N1 pandemic, less is known about the use of ECMO in patients with seasonal influenza A virus. We hypothesized that the severity of illness and survival of patients supported with extracorporeal membrane oxygenation (ECMO) would differ for those with seasonal influenza A vs pandemic H1N1 (H1N1) influenza A.Methods: Retrospective study of ECMO supported adults (>18 years) with influenza A viral infection reported to the Extracorporeal Life Support Organization (ELSO) Registry between 2009-2019. We describe the incidence and compare characteristics and factors associated with in-hospital survival using a least absolute shrinkage and selection operator regression.Results: Of 2461 patients supported with ECMO for influenza A, 445 had H1N1 and 2004 had seasonal influenza A. H1N1 was the predominant subtype between 2009-2011. Pandemic H1N1 patients were younger, with more severe illness at ECMO cannulation and higher reported ECMO complications than those with seasonal influenza A. Patient characteristics including younger age and higher weight, and patient management including longer ventilation duration before ECMO were associated with worse survival. ECMO complications were associated with reduced survival. There was no difference in survival to hospital discharge according to influenza subtype after adjusting for other characteristics.Conclusions: Patients supported with ECMO for pandemic H1N1 were younger, with more severe illness than those supported for seasonal influenza A. Survival to hospital discharge, was associated with patient characteristics, management, and ECMO complications, but was not impacted by the specific influenza A subtype.Trial registration: N/A

scholarly journals Pandemic (H1N1) 2009 and Seasonal Influenza A (H1N1) Co-infection, New Zealand, 2009

2010 ◽  
Vol 16 (10) ◽  
pp. 1618-1620 ◽  
Author(s):  
Matthew Peacey ◽  
Richard J. Hall ◽  
Stephanie Sonnberg ◽  
Mariette Ducatez ◽  
Shevaun Paine ◽  
...  
Keyword(s):  
New Zealand ◽  
Influenza A ◽  
Seasonal Influenza ◽  
Pandemic H1n1 ◽  
Influenza A H1n1 ◽  
Pandemic H1n1 2009

scholarly journals Hospitalizations associated with 2009 influenza A (H1N1) and seasonal influenza in Saurashtra region, India

2010 ◽  
Vol 4 (12) ◽  
pp. 834-841 ◽  
Author(s):  
Rajesh K Chudasama ◽  
Umed V Patel ◽  
Pramod B Verma
Keyword(s):  
Influenza Virus ◽  
Median Time ◽  
Influenza A ◽  
Seasonal Influenza ◽  
H1n1 Influenza ◽  
Pandemic H1n1 ◽  
H1n1 Influenza Virus ◽  
Pandemic H1n1 Influenza ◽  
Influenza A H1n1 ◽  
Epidemiological Characteristics

Introduction: This study investigated the clinico-epidemiological characteristics of patients who were hospitalized with 2009 pandemic H1N1 influenza virus infection and seasonal influenza in the Saurashtra region of India. Methodology: From September 2009 to February 2010, a total of 773 patients with influenza virus attending different hospitals in Rajkot city were studied. Real-time reverse-transcriptase-polymerase-chain-reaction (RT-PCR) testing was used to confirm infection; the clinico-epidemiological features of the disease were closely monitored. Results: Of the 733 patients, 35.4% (274/773) were cases of 2009 pandemic H1N1 influenza and 64.6% (499/773) were cases of seasonal influenza. Of the 274 patients with 2009 pandemic H1N1 influenza, the median age was 29.5 years, and 51.5% were males. Only 1.1% positive patients had recent travel history to an infected region. A median time of five days was observed from onset of illness to influenza A (H1N1) diagnosis, and a median time of six days was reported for hospital stay. All admitted influenza A (H1N1) patients received Oseltamivir drug, but only 16.1% received it within two days of onset of illness. One fourth of the admitted positive patients died. The most common symptoms were cough, fever, sore throat, and shortness of breath. The coexisting conditions were diabetes mellitus, hypertension, chronic pulmonary diseases, and pregnancy (p = 0.001). Chest radiography revealed 93% of the positive patients had pneumonia. Conclusion: The clinical course and outcomes of the 2009 pandemic (H1N1) influenza virus are comparable to those of the currently circulating seasonal influenza, with high mortality in influenza A (H1N1) patients.

scholarly journals Swine influenza A (H1N1) virus (SIV) infection requiring extracorporeal life support in an immunocompetent adult patient with indirect exposure to pigs, Italy, October 2016

2017 ◽  
Vol 22 (5) ◽  
Author(s):  
Francesca Rovida ◽  
Antonio Piralla ◽  
Federico Capra Marzani ◽  
Ana Moreno ◽  
Giulia Campanini ◽  
...  
Keyword(s):  
Influenza A ◽  
Life Support ◽  
H1n1 Virus ◽  
Extracorporeal Life Support ◽  
Swine Influenza ◽  
Good Health ◽  
Acute Distress ◽  
Influenza A H1n1 ◽  
Indirect Exposure ◽  
Siv Infection

We describe a case of severe swine influenza A(H1N1) virus infection in an immunocompetent middle-aged man in October 2016 in Italy who had only indirect exposure to pigs. The patient developed a severe acute distress respiratory syndrome which was successfully supported by extracorporeal membrane oxygenation and treated with antiviral therapy. The sole risk factor for influenza was a body mass index > 30 kg/m2. After a month of hospitalisation, the patient was discharged in good health.

scholarly journals Secondary Bacterial Infections in Patients with Seasonal Influenza A and Pandemic H1N1

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Karin Liderot ◽  
Marcus Ahl ◽  
Volkan Özenci
Keyword(s):  
Medical Records ◽  
Influenza A ◽  
Bacterial Infections ◽  
Seasonal Influenza ◽  
Patient Characteristics ◽  
Study Data ◽  
Culture Positivity ◽  
Influenza A H1n1 ◽  
Underlying Diseases ◽  
Laboratory Information Systems

The aim of the present study is to analyse the secondary bacterial infections in a large group of patients with seasonal influenza A and influenza A(H1N1) pdm09. Patients diagnosed with seasonal influenza A and influenza A(H1N1) pdm09 between 2005 and 2009 were enrolled in the study. Data was retrieved from medical records and laboratory information systems (LIS). In total, 1094 patients with laboratory confirmed influenza were studied. There were 352 patients with seasonal influenza A and 742 patients with influenza A(H1N1) pdm09. The patients with influenza A were older and had higher comorbidity than patients with influenza A(H1N1) pdm09 (P<0.001andP<0.05, resp.). Hospital admission was higher in influenza A group (P=0.01). In contrast, ICU admission was higher in patients with influenza A(H1N1) pdm09 than influenza A patients (P<0.05). There were higher numbers of bacterial samples taken and culture positivity in patients with influenza A than patients with influenza A(H1N1) pdm09 (P<0.0001andP=0.01, resp.). In both groups, the majority of the patients with positive bacterial cultures had underlying diseases. The present study shows that the patient characteristics and the frequency of secondary bacterial infections were different in patients with seasonal influenza A and in patients with influenza A(H1N1) pdm09.

scholarly journals Influenza A (H1N1) virus infection and TNF-308, IL6, and IL8 polymorphisms in Egyptian population: a case–control study

2019 ◽  
Vol 80 (1) ◽  
Author(s):  
Shaimaa Moustafa Elsayed ◽  
Omayma Mohamed Hassanein ◽  
Nagwa Hassan Ali Hassan
Keyword(s):  
Influenza A ◽  
Case Control Study ◽  
H1n1 Virus ◽  
Case Control ◽  
Severe Illness ◽  
Study Results ◽  
Influenza A H1n1 ◽  
Pandemic Strains ◽  
Study Participants ◽  
Control Study

Abstract Background The importance of influenza is increasing mainly because of the appearance of novel pandemic strains such as swine and avian. Each year, influenza has spread around the world causing about 250,000–500,000 deaths and more than 5 million cases of severe illness. The objective is as follows: evaluating the outcomes of patients with influenza A (H1N1) virus in relation to certain TNF-308, IL6, and IL8 polymorphisms and identifying the associated factors with the severe outcome. Subject and methods This is a case–control study. The cases were patients confirmed by real-time polymerase chain reaction (RT-PCR) to be influenza A (H1N1) virus infected. The controls were healthy individuals. Medical history and outcome of the disease was registered. In all study participants, polymorphisms of TNF rs1800629, IL6 rs18138879, and IL8 rs4073; odds ratio (OR); and the 95% confidence interval (95% CI) were calculated. Results Infection with influenza A (H1N1) virus was associated more with the following genotypes: TNF-308 AA (OR = 4.041; 95% CI = 1.215–13.4) and IL8 AA (OR = 3.273; 95% CI = 1.372–7.805). According to our study results, HCV (OR = 3.2, 95% CI 1.2–8.5), renal disease (OR = 3.4, 95% CI 0.9–13.6), cancer (OR = 3.1, 95% CI 0.3–31.1), TB (OR = 8.4, 95% CI 1.8–39.7), ICU (OR = 2.9, 95%1.2–7.1), and mortality (OR = 7.9, 95% CI 0.9–67.4) are considered as risk factors for influenza A (H1N1)-infected patients. Conclusions Our findings concluded that TNF-308 (AA) and IL8 (AA) polymorphisms may increase the susceptibility to be infected with H1N1influenza virus.

Comparisons of Clinical Features among Influenza A (H1N1) and Seasonal Influenza A and B during 2009 to 2010 at a Single Institution

2011 ◽  
Vol 21 (4) ◽  
pp. 269 ◽  
Author(s):  
Tae-Gon Kang ◽  
Mi-Jin Kim ◽  
Byoung-Gwon Kim ◽  
Hye-Sung An ◽  
Hyun-Jin Yun ◽  
...  
Keyword(s):  
Clinical Features ◽  
Influenza A ◽  
Seasonal Influenza ◽  
Single Institution ◽  
Influenza A H1n1

scholarly journals Virological analysis of fatal influenza cases in the United Kingdom during the early wave of influenza in winter 2010/11

2011 ◽  
Vol 16 (1) ◽  
Author(s):  
J Ellis ◽  
M Galiano ◽  
R Pebody ◽  
A Lackenby ◽  
CI Thompson ◽  
...  
Keyword(s):  
United Kingdom ◽  
Vaccine Strain ◽  
Influenza A ◽  
Influenza Season ◽  
Severe Illness ◽  
Influenza B ◽  
The United Kingdom ◽  
Influenza A H1n1 ◽  
Influenza Activity ◽  
Children And Young Adults

The 2010/11 winter influenza season is underway in the United Kingdom, with co-circulation of influenza A(H1N1)2009 (antigenically similar to the current 2010/11 vaccine strain), influenza B (mainly B/Victoria/2/87 lineage, similar to the 2010/11 vaccine strain) and a few sporadic influenza A(H3N2) viruses. Clinical influenza activity has been increasing. Severe illness, resulting in hospitalisation and deaths, has occurred in children and young adults and has predominantly been associated with influenza A(H1N1)2009, but also influenza B viruses.

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