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Lung India. 2013 Jan-Mar; 30(1): 81–82.
PMCID: PMC3644847

Pulmonary sequelae of swine flu

Sir,

The recent report on pulmonary sequelae in a case with swine flu is interesting. Singh et al.[1] Indeed, the reported “ground-glass opacities and areas of consolidation” is the common sign in the cases with swine flu pneumonia and might last for a long time.[2] The interesting question is what the reason for long lasting presentation in the reported case is. Indeed, the similar natural history of swine flu pneumonia is also reported by Toufen et al.[3] In that report, the resolution of CT finding and lung function could be observed in the swine flu patients with acute respiratory distress syndrome at 6-month period.[3] A possible reason can be the concomitant underlying disease in the cases with influenza pneumonia.[4] Adding to the prolonged lung manifestation, the other important concern is the possible role of swine flu infection in deteriorating the existed concomitant cardiovascular disease.[5] These topics should be further studied in chest medicine research.

REFERENCES

1. Singh V, Sharma BB, Patel V. Pulmonary sequelae in a patient recovered from swine flu. Lung India. 2012;29:277–9. [PMC free article] [PubMed]
2. Valente T, Lassandro F, Marino M, Squillante F, Aliperta M, Muto R. H1N1 pneumonia: Our experience in 50 patients with a severe clinical course of novel swine-origin influenza A (H1N1) virus (S-OIV) Radiol Med. 2012;117:165–84. [PubMed]
3. Toufen C, Jr, Costa EL, Hirota AS, Li HY, Amato MB, Carvalho CR. Follow-up after acute respiratory distress syndrome caused by influenza a (H1N1) virus infection. Clinics (Sao Paulo) 2011;66:933–7. [PMC free article] [PubMed]
4. Cholewińska G, Higersberger J, Podlasin R, Wiercińska-Drapało A, Lipowski D, Olszyńska-Krowicka M, et al. Influence of concomitant illness on clinical manifestations and severity of A/H1N1 influenza infection among patients hospitalized in the hospital of infectious diseases in warsaw-clinical cases. Przegl Epidemiol. 2010;64:21–5. [PubMed]
5. Lippi G, Franchini M, Favaloro EJ. Influenza and cardiovascular disease: Does swine-origin, 2009 H1N1 flu virus represent a risk factor, an acute trigger, or both? Semin Thromb Hemost. 2010;36:49–58. [PubMed]

Articles from Lung India : Official Organ of Indian Chest Society are provided here courtesy of Medknow Publications