fa یافته‌های دموگرافیک و پاراکلینیکی بیماران مبتلا به آنفلوانزای H1N1 نو پدید بستری در بخش عفونی بیمارستان سینا‌ی تبریز مقاله پژوهشی Original Research Article <p style="text-align: justify;"><strong><em>Background and Objective:</em></strong> Novel H1N1 influenza virus is a unique type of influenza virus which has developed due to abrupt structural alterations (Shift and Drift). This virus can lead to a pandemic disease. Since manifestations and severity of this disease may be affected by environmental, cultural and economic factors, therefore this epidemiological and regional study was carried out to reveal the clinical and demographic manifestations of the disease.<br> <strong><em>Materials and Methods: </em></strong>Since October till December 2009 40 patients with novel H1N1 infection documented with RT-PCR was collected. The demographic and laboratory data were carefully collected. Pulmonary involvement and the need for ICU were identified.<br> <strong><em>Results:</em></strong> 40 patients with H1N1 infection in the age range of 36.80&plusmn;13.02 years hospitalized in Sina Hospital of Tabriz. Twenty- one of them transfered to ICU and 37.5% of the patients had risk factors. Pneumonia was the most prevalent lung involvement. The most prominent radiographic finding was bilateral ground glass opacity. ARDS were seen in 25%. Cough and fever were the most prevalent, and vertigo and abdominal pain were the rarest clinical symptoms. Independent risk factors as related to death included the need for being hospitalized in ICU, and mechanical ventilation (odd ratio = 5.51, CI= 95 %).<span dir="RTL"></span><br> <strong><em>Conclusion:</em></strong> The patients in this study had clinical manifestations similar to other centers but the majority of them did not show any underlying risk factor. Mortality was rare except for pneumonia and ARDS. Some cases with bilateral pulmonary thromboembolism were seen. Consequently, all of the patients with this complication were discharged after treatment.</p> Novel H1N1 influenza, Clinical manifestations, Pulmonary involvement 84 93 http://journal.zums.ac.ir/browse.php?a_code=A-10-4-583&slc_lang=fa&sid=1 Parviz Saleh پرویز صالح hamidnoshad1@yahoo.com 5200319475328460060166 5200319475328460060166 Yes Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran متخصص بیماری‌های عفونی، استادیار دانشگاه علوم پزشکی و خدمات بهداشتی درمانی تبریز Hamid Noshad حمید نوشاد 5200319475328460060167 5200319475328460060167 No Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran فوق تخصص کلیه، دانشیار دانشگاه علوم پزشکی و خدمات بهداشتی درمانی تبریز Behrouz Naghili بهروز نقیلی 5200319475328460060168 5200319475328460060168 No Sina Hospital, Tabriz University of Medical Sciences, Tabriz, Iran متخصص بیماری‌های عفونی، استاد دانشگاه علوم پزشکی و خدمات بهداشتی درمانی تبریز