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Year : 2013  |  Volume : 5  |  Issue : 3  |  Page : 93-97

Clinical outcome of novel H1N1 (Swine Flu)-infected patients during 2009 pandemic at tertiary referral hospital in western India

1 Infectious Diseases Clinic, "VEDANTA" Institute of Medical Sciences, Navarangpura; Department of Infectious Diseases, Sterling Hospital, Ahmedabad, Gujarat, India
2 Department of Pulmonary and Critical Care, Sterling Hospital, Ahmedabad, Gujarat, India
3 Infectious Diseases Clinic, "VEDANTA" Institute of Medical Sciences, Navarangpura, India
4 Department of Infectious Diseases, Sterling Hospital, Ahmedabad, Gujarat, India
5 Department of Internal Medicine, University of South Florida, Tampa, Florida, USA
6 Department of Microbiology, Sterling Hospital, Ahmedabad, Gujarat, India

Correspondence Address:
Atul K Patel
Infectious Diseases Clinic, "VEDANTA" Institute of Medical Sciences, Navarangpura; Department of Infectious Diseases, Sterling Hospital, Ahmedabad, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0974-777X.116868

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Background: The first case of 2009 pandemic influenza A (H1N1) virus in Gujarat, India, was reported in August 2009. Oseltamivir was used for treatment of pandemic influenza in India. We discuss the clinical characteristics and outcome of the hospitalized patients with H1N1 infection during 2009 pandemic influenza season. Materials and Methods: Hospitalized patient with laboratory-confirmed H1N1 flu during August 2009 to February 2010 were included in this retrospective study. Data were collected from hospital ICU charts. Patients discharged from hospital were considered cured from swine flu. Data analysis was performed using CDC software EPI Info v3.5.3. Both univariate and multivariate analyses were conducted. Results: A total of 63 patients were included in the study, of them 41 (65%) males and 22 (35%) females. Median age was 34 (3-69) years and median duration of symptoms before hospitalization was 5 (2-20) days. Common presenting symptoms include fever 58 (92.06%), cough 58 (92.06%), breathlessness 38 (60.31%), common cold 14 (22.22%), vomiting 12 (19.04%), weakness 9 (14.28%), throat pain 7 (11.11%), body ache 5 (7.93%), and chest pain 4 (6.34%). Co-morbidities were seen in 13 (20.63%) patients. Steroids were used in 39 (61.90%) patients, and ventilatory support was required in 17 (26.98%) patients. On presentation chest x-ray was normal in 20 (31.74%) patients, while pulmonary opacities were seen in 43 (68.26%) patients. Forty-seven (74.60%) patients were cured and discharged from hospital, 14 (22.22%) patients died, and 2 (3.17%) patients were shifted to other hospital. Ventilatory requirement, pneumonia, and co-morbidities were the independent predictors of mortality, while age, sex, and steroid use were not associated with increased mortality. Conclusion: 2009 pandemic influenza A had the same clinical features as seasonal influenza except vomiting. Mortality rate was high in 2009 H1N1-infected patients with pneumonia, co-morbid conditions, and patients who required ventilatory support.

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2008 Journal of Global Infectious Diseases | Published by Wolters Kluwer - Medknow
Online since 10th December, 2008