DOI QR코드

DOI QR Code

Clinical Characteristics of Influenza B Virus in Children and the Efficacy of Oseltamivir: Data from Two University Hospitals

소아에서 B형 인플루엔자 바이러스의 감염에서 oseltamivir 치료의 유용성: 2개 병원에서 조사된 환자들을 대상으로

  • Youn, Song Ee (Department of Pediatrics, Kyung Hee University School of Medicine) ;
  • Chun, Ji Hye (Department of Pediatrics, Kyung Hee University School of Medicine) ;
  • Lee, Kyung Suk (Department of Pediatrics, Han Yang University College of Medicine) ;
  • Rha, Yeong Ho (Department of Pediatrics, Kyung Hee University School of Medicine) ;
  • Choi, Sun Hee (Department of Pediatrics, Kyung Hee University School of Medicine)
  • 윤송이 (경희대학교 의과대학 소아과학교실) ;
  • 천지혜 (경희대학교 의과대학 소아과학교실) ;
  • 이경석 (한양대학교 의과대학 소아과학교실) ;
  • 나영호 (경희대학교 의과대학 소아과학교실) ;
  • 최선희 (경희대학교 의과대학 소아과학교실)
  • Received : 2014.06.30
  • Accepted : 2014.10.22
  • Published : 2014.12.25

Abstract

Purpose: There has been little research regarding the effectiveness of oseltamivir for influenza B infections. We sought to identify the different clinical manifestations between patients treated with and without oseltamivir. Methods: We retrospectively studied the medical records of 72 inpatients or outpatients from two medical centers diagnosed with influenza B infections by either a rapid antigen test or multiplex reverse transcriptase PCR between January 2012 and July 2012. We compared gender, age, past medical history, admission period, total fever duration, fever duration after hospitalization, post-oseltamivir medication peak temperature, laboratory test, chest X-ray, antibiotic medication, and the presence of concomitant viral or bacterial infections. Results: The number of subjects in our study was 72 who were diagnosed with influenza B pneumonia, acute bronchitis, acute bronchiolitis, croup, and mean age was $3.6{\pm}2.8$ year old. The demographic characteristics and clinical manifestations of oseltamivir and the non-oseltamivir groups, including hospitalization period ($4.18{\pm}2.10$ vs $4.79{\pm}1.49$ days, P=.17) and total fever duration ($5.32{\pm}2.07$ vs $6.41{\pm}3.25$ days, P =.09), demonstrated no significant differences. Notably, the oseltamivir group did have significantly reduced usage of antibiotic treatment than the non-oseltamivir group (P=.04). When we limited our patient group to patients under the age of three, similar results were seen. The group prescribed oseltamivir within 48 hours of fever onset had less antibiotic usage, in addition to a shorter fever duration. Conclusion: Oseltamivir appeared to have no benefit in improving the clinical course. However, if it is prescribed within the first 48 hours of symptoms, it may be more effective.

목적: 본 연구는 인플루엔자 B 바이러스에 대한 oseltamivir의 효능을 알아보고자 치료군과 비치료군간의 임상적 특징의 차이를 비교하였다. 방법: 2012년 1월부터 2012년 7월까지 입원하거나 외래 진료실을 방문하여 인플루엔자 B 바이러스에 감염된 소아 환자를 대상으로 후향적으로 의무기록을 분석하였다. 결과: 인플루엔자 B 바이러스에 의한 폐렴, 급성 기관지염, 급성세기관지염, 크룹으로 진단된 72명의 평균 나이는 $3.6{\pm}2.8$세 였다. oseltamivir 치료군은 38명(53%), 비치료군은 34명(47%)이었고 치료 시기를 고려하지 않았을 때 두 군의 입원 기간($4.18{\pm}2.10$일 vs $4.79{\pm}1.49$일, P=.17), 총 발열 기간($5.32{\pm}2.07$일 vs $6.41{\pm}3.25$일, P=.09)을 포함한 임상적 양상에 유의한 차이가 없었다. 비치료군, 48시간 이내 치료군, 48시간 이후 치료군간의 비교에서 임상적 양상에 유의한 차이가 없었다. 3세 이하의 환자들을 대상으로 두 군간의 비교에서도 유의한 차이가 없었다. 결론: Oseltamivir 복용 전 치료군과 비치료군간의 임상적 특성에서 유의한 차이를 나타내는 항목이 없어 oseltamivir의 적응증을 도출하기 어려웠으며 치료 후 임상 경과의 유의한 차이도 없었다. 그러나 투약 시점에 따른 비교에서는 발열 시작 48시간 이내에 osetamivir를 투여한 군에서 발열 기간이 감소하는 경향을 보여주었으므로 향후 투약 시기를 고려하여 연령별 분석, 인플루엔자 B바이러스 종에 대한 분석을 포함하는 대단위 연구가 필요하다.

Keywords

References

  1. Labella AM, Merel SE. Influenza. Med Clin North Am 2013;97:621-45. https://doi.org/10.1016/j.mcna.2013.03.001
  2. Burnham AJ, Baranovich T, Govorkova EA. Neuraminidase inhibitors for influenza B virus infection: efficacy and resistance. Antiviral Res 2013;100:520-34. https://doi.org/10.1016/j.antiviral.2013.08.023
  3. Lee NY, Park JH, Kim GH, Jung JH, Cho KS, Kim SM. Viral etiology and clinical pattern of acute lower respiratory tract infection in children (Busan Area in 2002). Korean J Pediatr Infect Dis 2003;10:87-94.
  4. Kwon JH, Chung YH, Lee NY, Chung EH, Ahn KM, Lee SI. An epidemiological study of acute viral lower respiratory tract infections in hospitalized children from 2002 to 2006 in Seoul, Korea. Pediatr Allergy Respir Dis (Korea) 2008;18:26-36.
  5. Kim MS, Sung HW, Bae EY, Han SB, Jeong DC, Kang JH. The clinical characteristics of influenza B infection during the 2011-2012 influenza season. Korean J Pediatr Infect Dis 2013;20:89-97.
  6. Bicer S, Giray T, Col D, Erdag GC, Vitrinel A, Gurol Y, et al. Virological and clinical characterizations of respiratory infections in hospitalized children. Ital J Pediatr 2013;39:22. https://doi.org/10.1186/1824-7288-39-22
  7. Kang TG, Kim MJ, Kim BG, An HS, Yun HJ, Choi EJ, et al. Comparisons of clinical features among influenza A (H1N1) and seasonal influenza A and B during 2009 to 2010 at a single institution. Pediatr Allergy Respir Dis (Korea) 2011;21:269-76. https://doi.org/10.7581/pard.2011.21.4.269
  8. Kim SG, Hwang YH, Shin YH, Kim SW, Jung WS, Kim SM, et al. Occurrence and characterization of oseltamivir-resistant influenza virus in children between 2007-2008 and 2008-2009 seasons. Korean J Pediatr 2013;56:165-75. https://doi.org/10.3345/kjp.2013.56.4.165
  9. Leang SK, Deng YM, Shaw R, Caldwell N, Iannello P, Komadina N, et al. Influenza antiviral resistance in the Asia-Pacific region during 2011. Antiviral Res 2013;97:206-10. https://doi.org/10.1016/j.antiviral.2012.12.016
  10. Sugaya N, Mitamura K, Yamazaki M, Tamura D, Ichikawa M, Kimura K, et al. Lower clinical effectiveness of oseltamivir against influenza B contrasted with influenza A infection in children. Clin Infect Dis 2007;44:197-202. https://doi.org/10.1086/509925
  11. Nicholson KG, Aoki FY, Osterhaus AD, Trottier S, Carewicz O, Mercier CH, et al. Efficacy and safety of oseltamivir in treatment of acute influenza: a randomised controlled trial. Neuraminidase Inhibitor Flu Treatment Investigator Group. Lancet 2000;355:1845-50. https://doi.org/10.1016/S0140-6736(00)02288-1
  12. Seo ES, Park GH, Kim SM, Kim SW, Jung WS, Cho KS, et al. Oseltamivir efficacy, side effects, and safety in children with influenza. Korean J Pediatr 2010;53:56-66. https://doi.org/10.3345/kjp.2010.53.1.56
  13. Roche Korea. Information on product : Tamiflu leaflet [Internet]. Seoul:Korea R, c2013. [cited 2013]. Available from:http://www.roche.co.kr/file/Tamiflu%20leaflet.pdf.
  14. Kim SH, Park CH, Huh K, Shim GH, Kim HB, You SJ, et al. Comparison of clinical manifestation and laboratory findings between H1N1 and influenza B infection. Pediatr Allergy Respir Dis 2012;22:64-70. https://doi.org/10.7581/pard.2012.22.1.64
  15. Nah SY, Park SE, Park JY, Lee HJ. Epidemiology of influenza virus over 8 years (1990-1998) in Seoul, Korea. Korean J Infect Dis 1999;31:210-6.
  16. Kawai N, Ikematsu H, Iwaki N, Maeda T, Satoh I, Hirotsu N, et al. A comparison of the effectiveness of oseltamivir for the treatment of influenza A and influenza B: a Japanese multicenter study of the 2003-2004 and 2004-2005 influenza seasons. Clin Infect Dis 2006;43:439-44. https://doi.org/10.1086/505868
  17. Mitamura K, Sugaya N, Nirasawa M, Shinjoh M, Takeuchi Y. Effectiveness of oseltamivir treatment against influenza type A and type B infection in children. Kansenshogaku zasshi 2002;76:946-52. https://doi.org/10.11150/kansenshogakuzasshi1970.76.946
  18. Whitley RJ, Hayden FG, Reisinger KS, Young N, Dutkowski R, Ipe D, et al. Oral oseltamivir treatment of influenza in children. Pediatr Infect Dis 2001;20:127-33. https://doi.org/10.1097/00006454-200102000-00002
  19. Heinonen S, Silvennoinen H, Lehtinen P, Vainionpaa R, Vahlberg T, Ziegler T, et al. Early oseltamivir treatment of influenza in children 1-3 years of age: a randomized controlled trial. Clin Infect Dis 2010;51:887-94. https://doi.org/10.1086/656408
  20. Fujisaki S, Takashita E, Yokoyama M, Taniwaki T, Xu H, Kishida N, et al. A single E105K mutation far from the active site of influenza B virus neuraminidase contributes to reduced susceptibility to multiple neuraminidase-inhibitor drugs. Biochem Biophys Res Commun 2012;429:51-6. https://doi.org/10.1016/j.bbrc.2012.10.095
  21. Kim DK, Poudel B. Tools to detect influenza virus. Yonsei Med J 2013;54:560-6. https://doi.org/10.3349/ymj.2013.54.3.560
  22. Korea Centers for Disease Control and Prevention. Korean influenza surveillance report, 2011-2012. Public Health Weekly Report 2012;5:873-81.

Cited by

  1. 단일 병원에서 2013-2015년에 유행한 인플루엔자 A형과 B형의 임상 양상 및 치료반응의 차이 vol.24, pp.1, 2014, https://doi.org/10.14776/piv.2017.24.1.16
  2. 소아 입원환자에서의 A형 및 B형 인플루엔자 임상 비교 vol.24, pp.1, 2014, https://doi.org/10.14776/piv.2017.24.1.23
  3. 계절 인플루엔자 진단에서 신속항원검사의 유용성 vol.24, pp.1, 2014, https://doi.org/10.14776/piv.2017.24.1.31