• FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster. The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website. By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
  • We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.

Int J Infect Dis . Prognostic factors for the development of lower respiratory tract infection after influenza virus infection in allogeneic hematop

tetano

Editor, Senior Moderator
Int J Infect Dis


. 2023 Mar 29;S1201-9712(23)00124-8.
doi: 10.1016/j.ijid.2023.03.045. Online ahead of print.
Prognostic factors for the development of lower respiratory tract infection after influenza virus infection in allogeneic hematopoietic stem cell transplantation recipients: A KSGCT Multicenter Analysis


Kaito Harada[SUP] 1 [/SUP], Makoto Onizuka[SUP] 2 [/SUP], Takehiko Mori[SUP] 3 [/SUP], Hiroaki Shimizu[SUP] 4 [/SUP], Sachiko Seo[SUP] 5 [/SUP], Nobuyuki Aotsuka[SUP] 6 [/SUP], Yusuke Takeda[SUP] 7 [/SUP], Noritaka Sekiya[SUP] 8 [/SUP], Machiko Kusuda[SUP] 9 [/SUP], Shinichiro Fujihara[SUP] 10 [/SUP], Sawako Shiraiwa[SUP] 2 [/SUP], Katsuhiro Shono[SUP] 11 [/SUP], Naoki Shingai[SUP] 4 [/SUP], Heiwa Kanamori[SUP] 12 [/SUP], Mamiko Momoki[SUP] 13 [/SUP], Satoru Takada[SUP] 14 [/SUP], Junichi Mukae[SUP] 4 [/SUP], Shinichi Masuda[SUP] 6 [/SUP], Kinuko Mitani[SUP] 5 [/SUP], Emiko Sakaida[SUP] 7 [/SUP], Tatsuki Tomikawa[SUP] 15 [/SUP], Satoshi Takahashi[SUP] 16 [/SUP], Kensuke Usuki[SUP] 17 [/SUP], Yoshinobu Kanda[SUP] 9 [/SUP]



Affiliations
Free article

Abstract

Introduction: Influenza virus infection (IVI) occasionally causes lower respiratory tract infection (LRTI) in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients. Although progression to LRTI entails high mortality, the role of early antiviral therapy for its prevention has not been fully elucidated.
Methods: This was a multicenter retrospective study using an additional questionnaire. Allo-HSCT recipients who developed IVI between 2012 and 2020 were included.
Results: A total of 278 cases of IVI after allo-HSCT were identified from 15 institutions. The median patient age was 49 years, and the median time from allo-HSCT to IVI was 918 days. Neuraminidase inhibitors were administered within 48 hours of symptom onset (early NAI) in 199 patients (76.9%). Subsequently, 36 patients (12.3%) developed LRTI. On multivariate analysis, age ≥50 years (hazard ratio
, 2.16; 95% confidence interval [CI], 1.02-4.58) and moderate-to-severe chronic graft-versus-host disease (HR, 2.28; 95%CI, 1.14-4.58) were significantly associated with progression to LRTI, whereas early NAI suppressed the progression (HR, 0.17; 95% CI, 0.06-0.46). The IVI-related mortality rate was 2.2%.
Conclusions: To reduce the risk of LRTI development after IVI, early NAI therapy should be considered in allo-HSCT recipients, especially with older patients and those with chronic graft-versus-host disease.

Keywords: hematopoietic stem cell transplantation; influenza virus; secondary pneumonia.
 
Back
Top Bottom