• Simin Dashti-Khavidaki, Hossein Khalili, Farid Gholamalipour, Abdolreza Soudbakhsh, Azita-Hajhossein Talasaz, Mahboobeh Hajabdolbaghi, Mehrnaz Rasoolinejad, Talat Mokhtari Azad, Mehdi Fathi, Mohammad Taghi Talebian, and Somayeh Nasiripour.
• Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran. dashtis@tums.ac.ir
• J Infect Dev Ctries. 2010 Oct 28; 4 (10): 629-35.

IntroductionPandemic H1N1 influenza A (pdmH1N1) was a major health threat worldwide.Methodology  A prospective cross-sectional study was conducted at Imam Khomeini Hospital in Iran. Cases of suspicious pdmH1N1 patients referred to the emergency ward of the hospital were enrolled in the study, regardless of whether the final location of treatment was the community, the hospital ward, or the intensive care unit.  Oseltamivir was administered within three hours of the patient's admission.  The median length of stay for hospitalized patients was 3 days.ResultsGastrointestinal symptoms (nausea [164/434; 37.8%] and vomiting [98/434; 22.6%]) were the most common adverse reactions to oseltamivir in the study population, followed by dizziness (74/434; 17.1%). Out of 434 patients, 209 (48.2%) were treated in the community, 201 (46.3%) were admitted to the general ward in the hospital, and 24 (5.5%) were admitted to an ICU.ConclusionsThis study provided insight on the effectiveness of oseltamivir in treating pandemic influenza A, as well as possible adverse reactions to the drug.  The study further drew attention to a variety of pdmH1N1 complications, in particular secondary bacterial pneumonia. We also determined that 2009 influenza A (H1N1) infection-related critical illness and mortality affected fewer elderly than younger patients. Additionally, it was shown that our approach to patients with suspected Influenza A/H1N1 virus in our hospital was compatible with World Health Organization pandemic flu guidelines in our country.

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