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| Year : 2016 | Volume
: 9
| Issue : 3 | Page : 198-199 |
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| Vaso-occlusive retinal vasculitis and H1N1 influenza A |
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Sora Yasri1, Viroj Wiwanitkit2
1 KMT Primary Care Center, Bangkok, Thailand
2 Hainan Medical University, China
Click here for correspondence address and email
| Date of Web Publication | 3-May-2016 |
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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 |
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.
Financial support and sponsorship
Nil.
Conflicts of interest
There are no conflicts of interest.
 References | |  |
| 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.  |
| 2. | Rifkin L, Schaal S. H1N1-associated acute retinitis. Ocul Immunol Inflamm 2012;20:230-2. |
| 3. | Khairallah M, Kahloun R. Ocular manifestations of emerging infectious diseases. Curr Opin Ophthalmol 2013;24:574-80. |
| 4. | Fukami S, Wakakura M, Inouye J. Influenza retinitis: Association with influenza encephalitis. Ophthalmologica 2005;219:119-21. |
| 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. |
| 6. | Rothova A, de Groot JD, Mudrikova T. Reactivation of acute retinal necrosis after flu H1N1 vaccination. Br J Ophthalmol 2011;95:291. |
Correspondence Address:
Sora Yasri
KMT Primary Care Center, Bangkok
Thailand
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/1755-6783.181653
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