ResumoNesta pesquisa buscamos refl etir sobre as relações que os skatistas constroem em determinados espaços da região da Grande Florianópolis-SC, em específi co na pista de skate do bairro Trindade -a Trinda -, e no CT SKT -Projeto SKT -projeto que oferece aulas de skate. Foi investigada a apropriação do espaço, as relações de sociabilidade entre os indivíduos, a formação do habitus e a construção do campo skatista na cidade. Como possibilidade de aprofundamento e contribuição para com a área dos estudos em Educação, discutimos a noção de relação com o saber, e seus desdobramentos diante dos saberes do skatismo. Concluímos indicando a capacidade oferecida pelo estudo desta noção, em desenvolver tensionamentos no campo cientifi co, em especial, nas Ciências Sociais e da Educação. Palavras-chave:Skate.
O trabalho investiga sentidos atribuídos ao futebol, considerando experiências extraescolares e mediações pedagógicas estabelecidas com alunos dos anos iniciais. Os dados indicam que as relações que as crianças estabelecem com o saber e com o aprender engendra elementos anteriores e exteriores às experiências vivenciadas na escola, associadas a família, renda, consumo, mídia, gênero, exclusão, habilidade, prazer, fama, rendimento, saúde, dor, medo, tempo livre e reconhecimento da Educação Física como disciplina escolar. Estes elementos, basilares na relação que as crianças estabelecem com o saber, sugerem a necessidade de colocar suas declarações no centro do planejamento, mediando a produção de novos sentidos para o futebol, na escola e fora dela.
Background Aortic valve stenosis is the most common adult valve disease in industrialized countries. The aging population and the increase in comorbidities urge the development of safer alternatives to the current surgical treatment. Sutureless bioprosthesis has shown promising results, especially in complex procedures and in patients requiring concomitant surgeries. Objectives Assess the clinical and hemodynamic performance, safety, and durability of the Perceval® prosthetic valve. Methods This single‐center retrospective longitudinal cohort study collected data from all adult patients with aortic valve disease who underwent aortic valve replacement with a Perceval® prosthetic valve between February 2015 and October 2020. Of the 196 patients included (mean age 77.20 ± 5.08 years; 45.4% female; mean EuroSCORE II 2.91 ± 2.20%), the majority had aortic stenosis. Results Overall mean cross‐clamp and cardiopulmonary bypass times were 33.31 ± 14.09 min and 45.55 ± 19.04 min, respectively. Mean intensive care unit and hospital stay were 3.32 ± 3.24 days and 7.70 ± 5.82 days, respectively. Procedural success was 98.99%, as two explants occurred. Four valves were reimplanted due to intraoperative misplacement. Mean transvalvular gradients were 7.82 ± 3.62 mmHg. Pacemaker implantation occurred in 12.8% of patients, new‐onset atrial fibrillation in 21.9% and renal replacement support was necessary for 3.1%. Early mortality was 2.0%. We report no structural valve deterioration, strokes, or endocarditis, and one successfully treated valve thrombosis. Conclusions Our study confirms the excellent clinical and hemodynamic performance and safety of a truly sutureless aortic valve, up to a 5‐year follow‐up. These results were consistent in isolated and concomitant interventions, solidifying this device as a viable option for the treatment of isolated aortic valve disease.
Funding Acknowledgements Type of funding sources: None. Background Thrombocytopenia post transcatheter aortic valve implantation (TPPT) in its most severe manifestation is an independent predictor of mortality. However, mechanisms that favors TPPT remain unknown. Purpose To establish the prognostic value and risk factors of TPPT in a real-life population of patients treated with transcatheter aortic valve implantation (TAVI) in a tertiary hospital. Methods We analyzed retrospectively clinical, laboratory, echocardiographic and procedure-related variables from 203 consecutive patients, treated with TAVI between January 2019 and October 2021. Results This cohort had mean age of 82,3 ±5,9 years, 56% male, 83% hypertensive, 62% dyslipidemia, 35% diabetic, 20% chronic kidney disease, 22% chronic obstructive pulmonary disease, 32% coronary artery disease, 20% had previous ICP, 38% Atrial Fibrillation (AF), 18% peripheral arterial disease, 12% neurovascular disease, 23% history of cancer, 10% pacemaker carriers. 50% of TAVIs were balloon-expandable and 50% self-expandable. Mean procedure duration was 138 ±109min, size 26,6±3mm, contrast dose 233 ±88mL. During in-hospital stay 192/203 patients had TPPT. Platelets before TAVI, 187.000 (IQR 148.000-222.000) Vs a minimum post-TAVI (PlqMin) of 135.000 (IQR 105.000-164.000); P<0,05. Platelet fall (DeltaPlq) 48.000 ±38.000. We observed a Minimum Kidney clearance (ClMin) 46 ±20,75mL/min/m2, a maximum ultrasensitive Troponin-T (Tr-TusMax) 250 ±450 pg/L, a Maximum C Reactive Protein (PCRMax) 6,68 ±6,4, and a Minimum Hemoglobin (HbMin) 9,8 ±1,7 g/dL. 31/203 (15,3%) patients were exitus at the end of follow-up. We observed a non-lineal statistically significant association between TPPT quartiles and all-cause mortality (P<0,05): 21 exitus occurred in the extreme quartiles (1 and 4) while only 11 at the central ones (2 and 3). DeltaPlq was associated with PCRMax (Pearson 0,25; P<0,001), CliMin (Pearson -0,23; P0,005), HbMin (Pearson -0,27; P 0,001), AF. The only protective factor for DeltaPlq was history of previous ICP. Among exitus patients PlqMin was observed later than in survivors (3,5 vs 2,2 days; P<0,05). TPPT’s quartiles, previous ICP, time to PlqMin, HbMin, PCRMax and Tr-TusMax were the variables found to be independent associated with all-cause mortality (P<0,05). Conclusions The non-linear association between TPPT and mortality, the temporal relation between TPPT and mortality and the linear correlation between TPPT and HbMin and PCRMax suggest that late TPPT may have a mortality prognostic value through an increased risk of low Hb in the context of an increased inflammatory status. The fact that history of ICP was associated with les platelet fall suggests that revascularization, or ICP associated drug therapy, may confer protection against after TAVI mortality.
Funding Acknowledgements Type of funding sources: None. Background Cardiorespiratory fitness (CRF) is a powerful predictor of all-cause mortality among individuals with coronary artery disease (CAD). A structured community-based phase III cardiac rehabilitation (CR) is very important in lifelong maintenance of phase II CRF and health gains. During the COVID-19 pandemic, CR programs had to adapt, mainly using new technologies and remote follow-up. The CRF impact in patients (Ps) who kept going their phase III program, during this troubled era is still unknown. Purpose Assess the variation in CRF and prognostic parameters in Ps with CAD who maintain high adherence levels in their phase III CR before and during the COVID-19 pandemic. Methods A cohort of Ps enrolled in a community-based phase 3 CR program, with active participation at the end of 2019, was included in this retrospective study. The inclusion criteria for this study were high levels of attendance (>80%) to the CR program before and during COVID-19 and high levels of physical activity with more than 150 mins of moderate to vigorous physical activity (MVPA). All Ps were evaluated with transthoracic echocardiography (TTE) and a cardiorespiratory exercise test (CPET) in a cycloergometer in 2019 and between october and november of 2021. All Ps had used accelerometers to measure their physical activity levels and dual-energy absorptiometry (DEXA) scan to evaluate their body composition. Between 2020 and 2021, Ps had online (in lockdown periods) and face to face exercise training sessions, 3xtimes per week, 60 mins each exercise session. A t-test paired two sample for means was used to compare CPET variables before the beginning of the first COVID lockdown (end of 2019) and after the removal of the majority of restrictions (end of 2021). Results A total of 30 Ps with high levels of adherence were included (99.6% male, 65 ± 9 years old). In this cohort, the majority had history of an ACS before the referral to the CR program (73.3%) and 55.6 ± 10.4% of left ventricular ejection fraction. There was no significant difference in body mass index (27.9 ± 3.2 kg/m2 vs 28.1 ± 3.6 kg/m2, p=0.493 but there was a significant increase in the percentage of body fat mass (30.1 ± 5.7% vs 31.0 ± 6.6%, p= 0.042). There was a maintenance on MVPA levels (352 ± 137 minutes/week vs 313 ± 194 minutes/week, p = 0.106) during this period. When comparing the 2 CPET results, Ps achieved higher exercise loads in the 2021 test (175 ± 51W vs 185 ± 52W, p=0.005), higher VO2 peak (25.3 ± 6.9 ml/kg/min vs 21.5 ± 6.3 ml/kg/min, p =0.001) and higher percentage of predicted VO2max (78.8 ± 16.8% vs 95.27 ± 20.8%, p = 0.001). Conclusion In spite of all the difficulties in maintaining a phase III CR program during the COVID-19 pandemic, we observed that in physically active CAD Ps, with the aid of new technologies and remote follow-up (during the lockdown periods) and face to face exercise sessions, it is still possible to have functional gains and improvements in CRF.
OBJECTIVES: Cardiac surgery is frequently associated with significant postoperative bleeding. Platelet-dysfunction is the main cardiopulmonary bypass (CPB)induced hemostatic defect. Not only the number of platelets decreases, but also the remaining are functionally impaired. Although lipid metabolism is crucial for platelet function, little is known regarding platelet metabolic changes associated with CPB-dysfunction. Our aim is to explore possible contribution of metabolic perturbations for platelet dysfunction after cardiac surgery.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.