351. Clinical, radiological and prognostic features of influenza cases in the influenza epidemic during years 2016-2017.
- Author
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Erçen Diken Ö, Arslan S, Akdoğan Ö, Yapar D, Ünal Ö, Demir E, and Baykam N
- Subjects
- Female, Humans, Incidence, Influenza, Human epidemiology, Influenza, Human prevention & control, Male, Middle Aged, Prognosis, Survival Rate trends, Turkey epidemiology, Influenza A Virus, H1N1 Subtype immunology, Influenza A Virus, H3N2 Subtype immunology, Influenza Vaccines therapeutic use, Influenza, Human diagnosis, Vaccination methods
- Abstract
Introduction: Influenza subtypes vary by clinical, radiological, and prognostic courses and may go along with viral pneumonia. We aimed to identify clinical, radiological, and prognostic aspects of influenza epidemic during years 2016-2017., Materials and Methods: Influenza cases reported to the Public Health Directorate in our city was assessed retrospectively. Clinical, radiological, and prognostic parameters were compared based on influenza subtypes., Result: We analyzed samples from 197 cases with suspected influenza. Mean age of the subjects was 51.17 ± 26.74. We found influenza A/H1N1, influenza A/H3N2, and influenza B in 59 (30.0%), 29 (14.7%), and 3 (1.5%) cases, respectively. Comorbidity was present in 48 (24.4%) cases. Most common radiological finding was interstitial pattern. Seventy-one and 79 per cent of H1N1 and H3N2 cases were influenza pneumonia, respectively. The prevalence of overall mortality was 5.5% with a predominance in H1N1 over H3N2. Influenza vaccination had been performed in 6.8% and 3.4% of H1N1 and H3N2 cases, respectively. We detected no mortality in any vaccinated patient. We identified 6 pregnant women, 2 of which ended up with preterm birth, and another one with abortion., Conclusions: Often manifested as lower respiratory tract infection, influenza may cause epidemics with increased mortality rate. Influenza should be suspected when interstitial pattern was seen on radiological images. H1N1 cases course worse. Since the prognosis is better in vaccinated patients, seasonal influenza vaccination among the community needs to be elevated. In addition, protective measures like vaccination should be taken in pregnancy to avoid preterm delivery or abortion.
- Published
- 2018
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