Facteurs prédictifs d'une poussée de psoriasis après une infection par le SARS-CoV-2 chez l'enfant

Introduction: La pandémie à SARS-CoV-2 a été source de nombreuses questions quant à l'impact de l'infection sur les dermatoses inflammatoires chroniques, et de l'impact des traitements de ces dermatoses sur la sévérité de l'infection. Le registre international Chi-PsoCov (enfants psoriasique souffrant de psoriasis et ayant développé une infection à SARS-CoV-2) a permis de montrer que les biothérapies n'augmentaient pas le risque de formes sévères de COVID-19 chez les enfants atteints de psoriasis. Par ailleurs, il était montré que le COVID-19 était responsable du développement de psoriasis de novo ou de l'aggravation d'un psoriasis connu chez certains enfants.Dans cette partie du travail nous nous sommes concentrés sur les enfants ayant développé une poussée de psoriasis après l'infection : aspects phénotypiques des poussées, et recherche de facteurs de risque liés à la maladie, au psoriasis, ou aux traitements, associés à l'aggravation du psoriasis après l'infection. Matériel et méthodes: Les données ont été collectées de février 2021 à mai 2022 en provenance de 14 pays. Les enfants étaient inclus s'ils avaient moins de 18 ans, un antécédent de psoriasis ou psoriasis apparu dans le moins suivant l'infection COVID-19, et avaient été infectés par le SARS-CoV-2 avec ou sans symptômes. Les enfants ayant développé un psoriasis de novo étaient exclus de cette étude. Résultats: Sur les 152 inclusions du registre Chi-PsoCov, dix enfants ont développé un psoriasis dans le mois suivant l'infection et n'ont pas été retenus dans ce travail. L'analyse a porté sur 135 enfants ayant développé 142 COVID-19. Le psoriasis était stable dans 120 cas (84,5 %) et s'aggravait dans le mois suivant l'infection dans 22 cas (15,5 %).Dans 20 cas, lors de la poussée, le phénotype était inchangé, et dans 2 cas, il y avait un changement de phénotype : psoriasis en plaques en psoriasis en gouttes (n = 1) ou inversé (n = 1).Ni les caractéristiques démographiques, ni les aspects du psoriasis (notamment psoriasis actif vs en rémission), ni la sévérité de l'infection à SARS-CoV-2 n'étaient associés à des poussées de psoriasis. Seule l'utilisation de traitements systémiques du psoriasis, conventionnels ou biothérapies, lors de l'infection semblait protectrice de la survenue de poussées (50,0 % dans le groupe stable vs 27,3 % dans le groupe poussées, p = 0,049). Discussion: L'infection à SARS-CoV-2 est responsable dans environ 15 % des cas de poussées de psoriasis. Dans la grande majorité des cas, le phénotype précédent l'infection est conservé. Ces poussées ne sont pas associées à la sévérité du psoriasis, de l'infection ou autres paramètre cliniques. Seuls les traitements systémiques semblent réduire ce risque, probablement en « contrôlant » la poussée. Il est possible qu'une susceptibilité d'ordre génétique, non explorée ici, explique aussi cette susceptibilité à l'infection.

COVID-19 et psoriasis de l'enfant : facteurs associés à une évolution défavorable de la COVID-19 et impact de l'infection sur le psoriasis. Registre Chi-PsoCov

Introduction: La pandémie à SARS-CoV-2 a soulevé de nombreuses questions sur la prise en charge des maladies chroniques et leurs traitements. Les données concernant l'utilisation des biothérapies chez les adultes atteints de psoriasis sont rassurantes, mais manquent chez l'enfant. Par ailleurs, l'infection à SARS-CoV-2 pourrait influencer l'évolution du psoriasis chez l'enfant. L'objectif de cette étude était d'évaluer l'impact de l'infection à SARS-CoV-2 sur le psoriasis, et la sévérité de l'infection selon le traitement systémique reçu. Matériel et méthodes: Les données ont été collectées de février 2021 à février 2022 en provenance de 14 pays. Les enfants étaient inclus s'ils avaient moins de 18 ans, un antécédent de psoriasis ou apparu dans le moins suivant l'infection COVID-19, et avaient été infectés par le SARS-CoV-2 avec ou sans symptômes. Résultats: Au total, 117 enfants ont été inclus (filles : 49,6 %, âge moyen : 12,4 ans) avec 120 infections) SARS-CoV-2. La principale forme de psoriasis était le psoriasis en plaques (69,4 %) ;le psoriasis était actif avant l'infection dans 70,1 % des cas. La majorité des enfants ne prenaient pas de traitement systémique au moment de l'infection (54,2 %), 33 enfants (28,3 %) étaient sous biothérapie (principalement anti-TNF alpha et ustékinumab), et 24 (20,0 %) sous traitement systémique conventionnel (principalement méthotrexate). L'infection était confirmée chez 106 enfants (88,3 %) et 3 ont eu la maladie 2 fois (1 enfant asymptomatique sous ustékinumab et 2 enfants symptomatiques sans traitement systémique). L'infection était symptomatique chez 75 enfants (62,5 %) avec une durée moyenne des symptômes de 6,5 jours, significativement plus longue chez les enfants sous traitement systémique conventionnel (p = 0,002) ou sans traitement systémique (p = 0,006) par rapport aux enfants traités par biothérapies. Six enfants ont nécessité une hospitalisation, dont un enfant en réanimation ;ils étaient plus fréquemment sous traitements systémiques conventionnels par rapport aux autres enfants (p = 0,01), et principalement sous méthotrexate (p = 0,03). Aucun enfant sous biothérapie n'a été hospitalisé, et aucun décès n'a été rapporté.Après l'infection, le psoriasis s'est aggravé dans 17 cas (15,2 %), sans modification du phénotype sauf pour un enfant avec un psoriasis initialement en plaques qui a eu suite à l'infection une poussée de psoriasis en gouttes. Neuf enfants (8,0 %) ont développé un psoriasis de novo dans le mois qui a suivi l'infection, plus souvent un psoriasis en gouttes (p = 0,01) par rapport aux enfants ayant un antécédent connu de psoriasis. Ces enfants avaient un antécédent familial de psoriasis dans 75,0 % des cas. Discussion: L'utilisation des biothérapies semble rassurante sans augmentation du risque de forme sévère de COVID-19 chez les enfants atteints de psoriasis. L'infection à SARS-CoV-2 était responsable du développement de psoriasis de novo ou de l'aggravation d'un psoriasis connu chez certains enfants.

Children with psoriasis and COVID-19: factors associated with an unfavourable COVID-19 course, and the impact of infection on disease progression (Chi-PsoCov registry).

BACKGROUND: The COVID-19 pandemic has raised questions regarding the management of chronic skin diseases, especially in patients on systemic treatments. Data concerning the use of biologics in adults with psoriasis are reassuring, but data specific to children are missing. Moreover, COVID-19 could impact the course of psoriasis in children. OBJECTIVES: The aim of this study was therefore to assess the impact of COVID-19 on the psoriasis of children, and the severity of the infection in relation to systemic treatments. METHODS: We set up an international registry of paediatric psoriasis patients. Children were included if they were under 18 years of age, had a history of psoriasis, or developed it within 1 month of COVID-19 and had COVID-19 with or without symptoms. RESULTS: One hundred and twenty episodes of COVID-19 in 117 children (mean age: 12.4 years) were reported. The main clinical form of psoriasis was plaque type (69.4%). Most children were without systemic treatment (54.2%); 33 (28.3%) were on biologic therapies, and 24 (20%) on non-biologic systemic drugs. COVID-19 was confirmed in 106 children (88.3%) and 3 children had two COVID-19 infections each. COVID-19 was symptomatic for 75 children (62.5%) with a mean duration of 6.5 days, significantly longer for children on non-biologic systemic treatments (P = 0.02) and without systemic treatment (P = 0.006) when compared with children on biologics. The six children who required hospitalization were more frequently under non-biologic systemic treatment when compared with the other children (P = 0.01), and particularly under methotrexate (P = 0.03). After COVID-19, the psoriasis worsened in 17 cases (15.2%). Nine children (8%) developed a psoriasis in the month following COVID-19, mainly a guttate form (P = 0.01). DISCUSSION: Biologics appear to be safe with no increased risk of severe form of COVID-19 in children with psoriasis. COVID-19 was responsible for the development of psoriasis or the worsening of a known psoriasis for some children.

Continuous spinal anesthesia – a newborn technique for times of need?

Background and AimsDescribed during World War II, continuous spinal anesthesia (CSA) enables continuous administration of intrathecal drugs, offering several anesthetic options versus single shot technique, although underutilised.Here we present 4 cases of CSA performed for patients undergoing urgent upper abdominal and lower extremity orthopedic surgery during the COVID-19 pandemic. Our patients were ranked between 90–100 years old with ASA score IV, in which we highlight the presence of ischemic heart disease and chronic obstructive pulmonary disease.MethodsInvasive hemodynamic measurement was performed before CSA technique. Given the lack of microcatheter-over-the-needle kits in our center, we performed the technique using Perifix® Complete Set – B Braun, with full aseptic technique. The 18G Tuohy needle was introduced via a midline approach until CSF was encountered. The 20G catheter was then introduced 3cm into the subarachnoid space. In all situations we opted for the administration of sufentanil 0.0025 mg plus subsequent aliquots of hyperbaric bupivacaine 0.125%, guided by sensory assessment of block level.ResultsAll surgeries were successfully concluded with minimal haemodynamic variation and avoidance of mechanical invasive ventilation. Patients were admitted in the PACU, where spinal catheters were removed, and continued their recovery at the speciality yard. No complications were observed, particularly post-dural puncture headache, neurologic or infectious events.ConclusionsCSA is a useful anesthetic technique with a low failure rate. Its best role is likely to be in high-risk surgical patients, as it can provide excellent blockade conditions, with small doses of LA and little haemodynamic variation frequently seen with single shot techniques.

'Colouring' wipes phenomenon: a peculiar skin pigmentation induced by ascorbic acid observed during lockdown.

During the SARS-CoV-2 (COVID-19) pandemic, an unusual outbreak of yellow-brown pigmentation on the skin of children was reported. Because of the restrictions on movement promulgated during the lockdown, most consultancies were performed using teledermatology. Data concerning personal care products and application of topical substances were collected, which revealed use of the same brand of wipes for all patients. A liquid chromatography-mass spectrometry analysis was performed to compare the components of the wipes before and after the observation of the pigmentation, in order to detect the responsible substance. This analysis revealed a level about 10-fold higher than normal of ascorbic acid and its oxidation products (dehydroascorbic acid and L-threonic acid) in the wipes associated with the pigmentation. These 'colouring wipes' represent a peculiar but harmless phenomenon that highlights the importance of careful questioning about personal care products used by patients.

Spanish archaeological museums during COVID-19 (2020): an edu-communicative analysis of their activity on twitter through the sustainable development goals

On 18 March 2020, Spanish museums saw their in-person activities come to a halt. This paradigm shift has raised questions concerning how these institutions reinvented themselves and modified their edu-communicative strategies to promote heritage through active citizen participation. The present study centers on analyzing how the main Spanish archaeological museums and sites (N = 254) have used Twitter as an edu-communicative tool and analyzes the content of their hashtags through a mixed methodology. The objective is to identify the educational strategies for both transmitting information as well as interacting with users. We did it by observing and analyzing if Spanish archaeological institutions are promoting a type of quality, accessible, and egalitarian education and promoting the creation of cyber communities that ensure the sustainability of heritage through citizen participation. This paper proposes an innovative assessment of communication on Twitter based on the purpose of messages from the viewpoint of heritage education, their r-elational factor, and predominant type of learning. The main findings reveal a significant increase in Twitter activity, both in quantitative and qualitative terms: educational content is gaining primacy over the simple sharing of basic information and promotional content. The networks forge new ways to teach-learn and interact with media and represent a strong channel to promote the sustainability of heritage, its preservation, and appreciation.

Role of fluctuations in epidemic resurgence after a lockdown.

Most popular statistical models in epidemic evolution focus on the dynamics of average relevant quantities and overlooks the role of small fluctuations on the model parameters. Models for Covid-19 are no exception. In this paper we show that the role of time-correlated fluctuations, far from being negligible, can in fact determine the spreading of an epidemic and, most importantly, the resurgence of the exponential diffusion in the presence of time-limited episodes in promiscuity behaviours. The results found in this work are not only relevant and specific for the Covid-19 epidemic but are more general and can be applied to other epidemics.

Major cluster of paediatric 'true' primary chilblains during the COVID-19 pandemic: a consequence of lifestyle changes due to lockdown.

BACKGROUND: Over the last months, during the COVID-19 pandemic, a growing number of chilblain-like lesions were reported mainly in children and rarely in young adults. The relationship with SARS-CoV-2 infection was postulated, often without any laboratory, instrumental or clinical confirmation. The disclosure of information about chilblain-like lesions as a COVID-19 manifestation in social media has created concern in children's families and paediatricians. OBJECTIVES: To verify whether the chilblain-like lesions were caused by SARS-CoV-2 infection. METHODS: Prospective study on a case series including children who presented with acral lesions at the Pediatric Dermatology Outpatient and Pediatric Emergency Unit of the University of Bologna, from 1 April to 30 April 2020. We reported demographical, laboratory and clinical features, history of close contact with COVID-19 patients, presence of similar skin lesions in other family members, precipitating and risk factors for chilblain onset. RESULTS: We evaluated eight patients (five females, three males) aged between 11 and 15 years. We excluded acute or previous SARS-CoV-2 infection with RT-PCR nasopharyngeal swab, serum antibody levels using chemiluminescent immunoassays. Other acute infections causing purpuric lesions at the extremities were negative in all patients. Skin lesion biopsy for histological and immunohistochemical evaluation was made in two cases and was consistent with chilblain. PCR assay on skin lesion biopsy for parvovirus B19, Mycoplasma pneumoniae and SARS-CoV-2 was performed in a patient and resulted negative. We identified common precipitating and risk factors: physical (cold and wet extremities, low BMI), cold and wet indoor and outdoor environment, behaviours, habits and lifestyle. We therefore reached a diagnosis of primary chilblains. CONCLUSIONS: During the COVID-19 pandemic, a 'cluster' of primary chilblains developed in predisposed subjects, mainly teenagers, due to cold exposure in the lockdown period. Laboratory findings support our hypothesis, although it is also possible that an unknown infectious trigger may have contributed to the pathogenesis.