Preliminary data on prednisone effectiveness in children with Sydenham chorea.

The objective of the study is to evaluate the efficacy of corticosteroids in Sydenham chorea. This is a retrospective observational study. Clinical information of children with Sydenham chorea were collected. Outcome of Sydenham chorea was evaluated in consideration of presence or absence of corticosteroid therapy. Thirty patients were enrolled. A total of 15 were treated with prednisone, 15 received symptomatic drugs or no treatment. Patients who were treated with prednisone showed faster improvement (4 vs 16 days; p = 0.002) and shorter median time of remission (30 vs 135 days; p < 0.001).Conclusion: Our study showed that corticosteroid therapy is an effective treatment of Sydenham chorea.What is Known:• Steroid treatment in Sydenham chorea is widely used but it is not standardized.• Few manuscript report a beneficial use of steroids in Sydenham chorea if compared with no treatment.What is New:• Steroid treatment seems to be effective in both clinical remission and clinical improvement of symptoms among patients with Sydenham chorea.• Steroid treatment seems to be superior to conventional treatment.

Nurses' Perceptions of the Quality of Procedural Sedation in Children Comparing Different Pharmacological Regimens.

Nurses play a pivotal role during pediatric procedural sedation and their perspective is an important indicator for the quality of care. The aim of this study is to examine nurses' satisfaction comparing four different pharmacological regimens used for pediatric sedation outside of the operating room. A prospective observational study was conducted in a third-level pediatric teaching hospital, involving all the nurses with experience in the field of pediatric procedural sedation. A 13-item survey was used to assess the level of nurses' satisfaction for the quality of sedation with four different analgesic-sedative drugs. Fifty-one questionnaires were completed by pediatric nurses, with a median length of experience of 10 years. Regarding the overall quality of the sedation, the highest median satisfaction scores were observed for propofol (8, IQR 7-9), dexmedetomidine (8, IQR 6-8) and midazolam (8, IQR 7-9). Ketamine (5, IQR 3-7) displayed the lowest score. When asked to rate their level of perceived safety, nurses gave high scores to all the four drugs studied, with no statistically significant difference between them. Non-pharmacological techniques during procedural sedation were judged as important by 38 (74.5%) nurses. According to this sample of pediatric nurses, the best quality of procedural sedation in children outside of the operating room is obtained with propofol, dexmedetomidine and midazolam. During procedural sedation, nurses feel safe overall, regardless of the pharmacological regimen used. Moreover, they highlighted the relevance on non-pharmacological approaches in the preparation of the child for the procedure.

Constitutive formulation and numerical analysis of the biomechanical behaviour of forefoot plantar soft tissue.

The aim of this work is to provide a numerical approach for the investigation of the mechanical behaviour of the forefoot soft tissues. The development of reliable numerical models of biological structures requires the definition of constitutive formulations that actually interpret the mechanical response of the constituent biological tissues and their structural arrangement. A specific visco-hyperelastic constitutive model is provided to account for the typical features of soft plantar tissue mechanics, as geometric and material non-linearity, almost-incompressible behaviour and time-dependent phenomena. Constitutive parameters are evaluated by the analysis of experimental data from compression and stress relaxation tests on tissue samples. A three-dimensional finite element model of the forefoot region is developed starting from the analysis of biomedical images, leading to the evaluation of overall structural response. The reliability of model and analyses is assessed by the comparison of experimental and numerical results pertaining to indentation tests. The numerical model developed allows to evaluate the mechanical response of plantar soft tissue in terms of stress and strain distribution.