Korean J Otorhinolaryngol-Head Neck Surg.  2013 Jul;56(7):452-455. 10.3342/kjorl-hns.2013.56.7.452.

Steroid Effect for Persistent Cough Developed after 2009 Pandemic Influenza A (H1N1) Infection: 5 Cases

Affiliations
  • 1Department of Internal Medicine, School of Medicine, Kangwon National University, Chuncheon, Korea.
  • 2Department of Otolaryngology, School of Medicine, Kangwon National University, Chuncheon, Korea. wonjy@kangwon.ac.kr

Abstract

After the report of the first case of pandemic influenza A virus H1N1 on April 2009, this infection caused more than 16 thousands deaths world-widely. Postinfectious cough is known to be one of the important causes of chronic cough. We experienced five cases of persistent cough, which developed after influenza A virus H1N1 infection. All of the cases showed bronchial hyperreactivity by methacholine inhalation challenge. We prescribed steroids, which resulted in complete symptomatic recovery within 50 days, but the bronchial hyperreactivity was not normalized. We describe these five cases in regard to clinical characteristics, methacholine challenge test, and anti-inflammatory treatment.

Keyword

Bronchial hyperreactivity; Cough; H1N1 subtype; Influenza A virus; Steroids

MeSH Terms

Bronchial Hyperreactivity
Cough
Influenza A virus
Influenza, Human
Inhalation
Methacholine Chloride
Pandemics
Steroids
Methacholine Chloride
Steroids
Full Text Links
  • KJORL-HN
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2024 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr