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Table of Contents   
LETTER TO THE EDITOR  
Year : 2016  |  Volume : 9  |  Issue : 3  |  Page : 198-199
Vaso-occlusive retinal vasculitis and H1N1 influenza A


1 KMT Primary Care Center, Bangkok, Thailand
2 Hainan Medical University, China

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Date of Web Publication3-May-2016
 

How to cite this article:
Yasri S, Wiwanitkit V. Vaso-occlusive retinal vasculitis and H1N1 influenza A. Ann Trop Med Public Health 2016;9:198-9

How to cite this URL:
Yasri S, Wiwanitkit V. Vaso-occlusive retinal vasculitis and H1N1 influenza A. Ann Trop Med Public Health [serial online] 2016 [cited 2019 Dec 12];9:198-9. Available from: http://www.atmph.org/text.asp?2016/9/3/198/181653
Dear Sir,

The influenza A virus is the common pathogenic virus in the tropical world. It can cause severe acute febrile illness. Several complications due to influenza A virus infection can be seen. However, the thrombotic event can be rarely seen. The vessel occlusion in dengue infection is a very interesting rare situation. The recent report on vaso-occlusive retinal vasculitis and influenza A virus infection is a good example.[1] Cheung et al. reported “a unique case of H1N1 influenza A presenting with vaso-occlusive retinal vasculitis, encephalitis, and flu symptoms.”[1] In fact, the ocular manifestation of influenza is usually forgotten. The acute H1N1 related retinitis is important in the present era of emerging influenza.[2],[3],[4] Rifkin and Schaal noted that “H1N1 should be included in the differential diagnosis of any patient with a history of recent influenza A (H1N1) infection.”[2] As mentioned by Cheung et al., the occurrence of acute H1N1 related retinitis is usually concomitant with influenza encephalitis.[1] Indeed, the problem of microcirculatory can be seen in the patients with influenza A virus infection and can lead to several complications.[5] Hence, it is suggested that ocular investigation is required on any influenza cases with neurological complication. Finally, it should be noted the influenza related retinal problem can also be seen after influenza vaccination case [6] and this is a common forgotten issue in tropical opthalmology.

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Nil.

Conflicts of interest

There are no conflicts of interest.

 
   References Top

1.
Cheung AY, Anderson B, Stec L, Khandhar P, Williams GA. Bilateral vaso-occlusive retinal vasculitis with h1n1 influenza a infection. Retin Cases Brief Rep 2015;9:138-41.   Back to cited text no. 1
    
2.
Rifkin L, Schaal S. H1N1-associated acute retinitis. Ocul Immunol Inflamm 2012;20:230-2.  Back to cited text no. 2
    
3.
Khairallah M, Kahloun R. Ocular manifestations of emerging infectious diseases. Curr Opin Ophthalmol 2013;24:574-80.  Back to cited text no. 3
    
4.
Fukami S, Wakakura M, Inouye J. Influenza retinitis: Association with influenza encephalitis. Ophthalmologica 2005;219:119-21.  Back to cited text no. 4
    
5.
Salgado DR, Ortiz JA, Favory R, Creteur J, Vincent JL, De Backer D. Microcirculatory abnormalities in patients with severe influenza A (H1N1) infection. Can J Anaesth 2010;57:940-6.   Back to cited text no. 5
    
6.
Rothova A, de Groot JD, Mudrikova T. Reactivation of acute retinal necrosis after flu H1N1 vaccination. Br J Ophthalmol 2011;95:291.  Back to cited text no. 6
    

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Correspondence Address:
Sora Yasri
KMT Primary Care Center, Bangkok
Thailand
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1755-6783.181653

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