Outcomes of severe pandemic influenza A/H1N1/2009


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Aim. To study the outcomes of severe pandemic influenza A/H1N1/2009.
Subjects and methods. The study enrolled 24 patients, including 8 males and 16 females (10 of whom were pregnant), aged 17 to 58 years, with a laboratorily verified diagnosis of pandemic influenza A/H1N1/2009, treated at the intensive care unit for the significant symptoms of acute respiratory failure (RF). Real-time RT-PCR was used to verify the diagnosis. Organs and tissues from deceased patients were histologically studied; chest computed tomography, body plethysmography, fibrobronchoscopy, breath test, and 6-minute walk test were performed in the late period.
Results. Within the first 30 days, a fatal outcome caused by therapy-resistant progressive RF was observed in 33% of the patients with pandemic influenza treated at the intensive care unit. Diffuse alveolar damage caused by influenza virus, which gives rise to hyaline membranes, underlies RF. Lung tissue fibrosis formed in recovered patients.
Conclusion. The severity of pandemic influenza A/H1N1/2009 was determined by massive bilateral pneumonia, interstitial (alveolar) pulmonary edema, formation of diffuse bilateral lung fibrosis at the outcome of severe virus pneumonia (acute respiratory distress syndrome) with a decrease in vital and diffusing capacities, thereby generating a need to follow up this patient category and, possibly, to elaborate special rehabilitation programs.

作者简介

Elena Klimova

Email: elena_klimova@mail.ru

Nikolay Yushchuk

Email: msmsu_rector@mtu-net.ru

Galina Karetkina

Email: karetkinagn@mail.ru

Pavel Boytsov

Email: ikb1@mosgorzdrav.ru

Avet Serobyan

Email: ikb1@mosgorzdrav.ru

Elena Kelli

Email: ekelly@yandex.ru

Nikolay Malyshev

Email: ikb1@mosgorzdrav.ru

Natal'ya Golokhvastova

Email: pavo@mail.ru

Madina Esaulova

Email: emadina@inbox.ru

Natal'ya Karchevskaya

Email: karchevskaia@mail.ru

Sergey Avdeev

Email: serg_avdeev@list.ru

E Klimova

Moscow State University of Medicine and Dentistry

Moscow State University of Medicine and Dentistry

N Yushchuk

Moscow State University of Medicine and Dentistry

Moscow State University of Medicine and Dentistry

G Karetkina

Moscow State University of Medicine and Dentistry

Moscow State University of Medicine and Dentistry

P Boitsov

Infectious Clinical Hospital One

Infectious Clinical Hospital One

A Serobyan

Infectious Clinical Hospital One

Infectious Clinical Hospital One

E Kelli

Infectious Clinical Hospital One

Infectious Clinical Hospital One

N Malyshev

Infectious Clinical Hospital One

Infectious Clinical Hospital One

N Golokhvastova

Moscow State University of Medicine and Dentistry

Moscow State University of Medicine and Dentistry

M Esaulova

Infectious Clinical Hospital One

Infectious Clinical Hospital One

N Karchevskaya

Research Institute of Pulmonology, Federal Biomedical Agency

Research Institute of Pulmonology, Federal Biomedical Agency

S Avdeyev

Research Institute of Pulmonology, Federal Biomedical Agency

Research Institute of Pulmonology, Federal Biomedical Agency

参考

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  3. CDC news conference with Thomas R. Frieden, Centers for Disease Control and Prevention, Dec. 10, 2009. CDC web site, "CDC Estimates of 2009 H1N1 Influenza Cases, Hospitalizations and Deaths in the United States, April-November 14, 2009", Dec. 10, 2009. http:flu.gov/individualfamily/about/ h1n1/estimates_2009_h1n1.html.
  4. CDC estimates of 2009 H1N1 influenza cases, hospitalizations and deaths in the United States, April 2009-February 13, 2010. Atlanta: Centers for Disease Control and Prevention, 2010. (Accessed April 9, 2010, at http://flu.gov/individualfamily/about/h1n1/estimates_2009_h1n1.html).
  5. Writing Committee of the WHO Consultation on Clinical Aspects of Pandemic (H1N1) 2009 Influenza. Clinical aspects of pandemic 2009 influenza A(H1N1) virus infection. N. Engl. J. Med. 2010; 362:1708-1719.
  6. CDC, Influenza Division. FluView. Available at: http:// www.cdc.gov/flu/weekly/Accessed September 16, 2009.
  7. Гендон Ю. З. Проблема профилактики гриппа у беременных женщин и новорожденных детей. Вопр. вирусол. 2009; 2: 4-10.
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