SARS-CoV-2 infection as a risk factor for herpesviridae reactivation: consider the potential influence of corticosteroid
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LETTER
SARS‑CoV‑2 infection as a risk factor for herpesviridae reactivation: consider the potential influence of corticosteroid therapy Patrick M. Honore*, Leonel Barreto Gutierrez, Luc Kugener, Sebastien Redant, Rachid Attou, Andrea Gallerani and David De Bels
We read with great interest the recent article by Le Balc’h et al. who concluded that their results suggest that SARSCoV-2 infection could be a risk factor for Herpesviridae reactivation [1]. We would like to make some comments. Glucocorticoid treatment increases the risk of opportunistic infection [2]. Infections that can arise during glucocorticoid use, and for which preventative measures can be taken, include reactivation of Herpesviridae that can lead to herpetic pneumonia [2]. In the study of Le Balc’h et al. [1], 44% of patients in the Herpesviridae reactivation group received corticosteroids, compared to only 20% of patients in the non-reactivation group. Although the difference did not reach statistical significance due to the low number of patients, the difference is still notable and may explain, at least in part, the difference in Herpesviridae reactivation between the groups. Herpesviridae reactivations occur easily after high-dose steroids and may lead to fatal disease [3]. Possible infectious complications as a result of Herpesviridae reactivations should be considered in patients who receive high-dose glucocorticoid treatment amounting to more than 420 mg of steroid over 4 weeks [4]. This is equal to a daily dose of 52.5 mg of prednisolone [4]. The dose of steroid and the duration of treatment are not reported in the Le Balc’h et al. study [1]. Given that a dose of 52.5 mg of prednisolone is equal to 8 mg of dexamethasone, the dose used in the RECOVERY trial (6 mg) [5] may not increase the risk *Correspondence: Patrick.Honore@CHU‑Brugmann.be ICU Department, Centre Hospitalier Universitaire Brugmann-Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020 Brussels, Belgium
of reactivation of Herpesviridae. However, perhaps even the regimen of 6 mg dexamethasone for 10 days that was used in the RECOVERY trial could result in Herpesviridae pulmonary reactivation when given in the context of prolonged mechanical ventilation and concomitant bacterial sepsis. Acknowledgements None. Authors’ contributions PMH, SR, DDB designed the paper. All authors participated in drafting and reviewing. All authors read and approved the final manuscript. Funding None. Availability of data and materials Not applicable. Ethics approval and consent to participate Not applicable. Consent for publication Not applicable. Competing interests The authors declare to have no competing interests. Received: 12 September 2020 Accepted: 16 October 2020
References 1. Le Balc’h P, Pinceaux K, Pronier C, Seguin P, Tadié JM, Reizine F. Herpes simplex virus and cytomegalovirus reactivations among severe COVID-19 patients. Crit Care. 2020;24(1):530. https://doi.org/10.1186/s13054-02003252-3.
© The Author(s) 2020. Open Access This article is licensed under a
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