Transição de cuidado de pacientes internados por COVID-19 e sua relação com as características clínicas / Transición de cuidado de pacientes internados por COVID-19 y su relación con las características clínicas / Care transition for patients admitted to hospital due to COVID-19 and its relationship with clinical characteristics

Resumo Objetivo Analisar a transição do cuidado (TC), e sua relação com as características clínicas de pacientes internados por COVID-19. Métodos Estudo transversal, realizado em um hospital geral, com 165 pacientes hospitalizados em decorrência da COVID-19 e que receberam alta para o domicílio. Participaram aqueles que estiveram internados por pelo menos 24hs, maiores de 18 anos, com acesso telefônico após a alta. Excluídos aqueles que receberam alta por transferência, que evoluíram a óbito ou aqueles sem condições cognitivas. Dados coletados entre março a julho de 2021, por meio de questionário sociodemográfico e clínico, bem como o Care Transitions Measure-15. Aplicou-se análise estatística descritiva e inferencial. Resultados A média geral do Care Transitions Measure-15 foi considerada satisfatória (71,8±7,45). O fator Preferências Asseguradas obteve maior média (80,5± 9,84) e o fator Plano de Cuidados a menor (57,5± 11,4). Foram encontradas diferenças estatísticas significativas quando se associou os fatores do CTM-15 com as variáveis clínicas tempo de doença crônica (p<0,03), presença de artefato clínico (p<0,040), uso de medicação contínua (p<0,029) e a reinternação teve diferença significativa nos fatores Preparação para o Autogerenciamento (p<0,045), Preferências Asseguradas (p<0,027) e Plano de Cuidados (p<0,032). Conclusão Os pacientes hospitalizados por COVID-19 avaliaram a TC geral como satisfatória e as variáveis clínicas tempo de doença crônica, artefato clínico, medicação contínua e reinternação interferiram na TC desses pacientes.

Resumen Objetivo Analizar la transición del cuidado (TC) y su relación con las características clínicas de pacientes internados por COVID-19. Métodos Estudio transversal, realizado en un hospital general, con 165 pacientes hospitalizados como consecuencia de COVID-19, que fueron dados de alta para volver a su domicilio. Participaron aquellas personas que estuvieron internadas por lo menos 24 horas, mayores de 18 años, con acceso telefónico después del alta. Se excluyeron aquellas que fueron dadas de alta por transferencia, que fallecieron o que no tenían condiciones cognitivas. Los datos fueron recopilados entre marzo y julio de 2021, mediante cuestionario sociodemográfico y clínico, así como también el Care Transitions Measure-15. Se aplicó análisis estadístico descriptivo e inferencial. Resultados El promedio general del Care Transitions Measure-15 fue considerado satisfactorio (71,8±7,45). El factor Preferencias Aseguradas obtuvo el mayor promedio (80,5± 9,84) y el factor Plan de Cuidados, el menor (57,5± 11,4). Se encontraron diferencias estadísticas significativas cuando se asociaron los factores del CTM-15 con las variables clínicas tiempo de enfermedad crónica (p<0,03), presencia de artefacto clínico (p<0,040), uso de medicación continua (p<0,029). La reinternación tuvo una diferencia significativa en los factores Preparación para la Autogestión (p<0,045), Preferencias Aseguradas (p<0,027) y Plan de Cuidados (p<0,032). Conclusión Los pacientes hospitalizados por COVID-19 evaluaron la TC general como satisfactoria. Las variables clínicas tiempo de enfermedad crónica, artefacto clínico, medicación continua y reinternación interfirieron en la TC de estos pacientes.

Abstract Objective To analyze care transition (CT) and its relationship with the clinical characteristics of patients admitted to hospital due to COVID-19. Methods This is a cross-sectional study, carried out in a general hospital, with 165 patients admitted to hospital due to COVID-19 and who were discharged home. Participants were those who had been admitted to hospital for at least 24 hours, over 18 years of age, with telephone access after discharge. Those who were discharged by transfer, who died or those without cognitive conditions were excluded. Data collected between March and July 2021, using a sociodemographic and clinical questionnaire as well as Care Transitions Measure-15. Descriptive and inferential statistical analysis was applied. Results The overall mean of Care Transitions Measure-15 was considered satisfactory (71.8±7.45). The Important preferences factor obtained the highest mean (80.5± 9.84) and the Care Plan factor the lowest (57.5± 11.4). Significant statistical differences were found when the CTM-15 factors were associated with the clinical variables: duration of chronic disease (p<0.03); presence of clinical artifact (p<0.040); use of continuous medication (p<0.029). Readmission had a significant difference in the factors Health management preparation (p<0.045), Important preferences (p<0.027) and Care plan (p<0.032). Conclusion Patients admitted to hospital due to COVID-19 assessed the general CT as satisfactory and the clinical variables, length of chronic illness, clinical artifact, continuous medication and readmission interfered in the CT of these patients.

Experimental evidence that maleic acid markedly compromises glutamate oxidation through inhibition of glutamate dehydrogenase and α-ketoglutarate dehydrogenase activities in kidney of developing rats.

Maleic acid (MA), which has been reported to be highly excreted in propionic acidemia (PAcidemia), was demonstrated to cause nephropathy by bioenergetics impairment and oxidative stress, but the effects on kidney mitochondrial respiration has not yet been properly investigated. Therefore, the present study investigated the effects of MA (0.05-5 mM), as well as of propionic (PA) and 3-hydroxypropionic (3OHPA) acids (5 mM) that accumulate in PAcidemia, on mitochondrial respiration supported by glutamate, glutamate plus malate or succinate in mitochondrial fractions and homogenates from rat kidney, as well as in permeabilized kidney cells. MA markedly decreased oxygen consumption in state 3 (ADP-stimulated) and uncoupled (CCCP-stimulated) respiration in glutamate and glutamate plus malate-respiring mitochondria, with less prominent effects when using succinate. We also found that PA significantly decreased state 3 and uncoupled respiration in glutamate- and glutamate plus malate-supported mitochondria, whereas 3OHPA provoked milder or no changes. Furthermore, glutamate dehydrogenase and α-ketoglutarate dehydrogenase activities necessary for glutamate oxidation were significantly inhibited by MA in a dose-dependent and competitive fashion. The MA-induced decrease of state 3 and uncoupled respiration found in mitochondrial fractions were also observed in homogenates and permeabilized renal cells that better mimic the in vivo cellular milieu. Taken together, our data indicate that MA, and PA to a lesser extent, disturb mitochondrial-oxidative metabolism in the kidney with the involvement of critical enzymes for glutamate oxidation. It is postulated that our present findings may be possibly involved in the chronic renal failure observed in patients with PAcidemia.

Cardioprotective effects of physical exercise on redox biology in mice exposed to hand-rolled cornhusk cigarette smoke.

The present study sought to evaluate the effects of physical training on histological parameters and oxidative stress in the myocardium of mice chronically exposed to hand-rolled cornhusk cigarette (HRCC) smoke. Male Swiss mice (60 days old, 30-35 g) were either exposed to ambient air or passively exposed to the smoke of 12 cigarettes daily over 3 sessions (4 cigarettes per session) for 60 consecutive days with or without physical training for 8 weeks. Forty-eight hours after the last training session, the heart was surgically removed for histological analysis and measurement of oxidative stress parameters. Histological imaging revealed cell disruption, with poorly defined nuclei, in the mice exposed to HRCC smoke, but not in the control group. However, mice exposed to HRCC smoke with physical training displayed signs of tissue repair and improved tissue integrity. Biochemical analysis revealed decreased production of superoxide, 2',7'-dichlorofluorescein (DCF), and nitrite, as well as decreased protein carbonylation, in the physical training groups, likely due to the exercise-induced increase in glutathione peroxidase (GPX) activity and glutathione (GSH) content. Taken together, our results suggest that physical exercise exerts cardioprotective effects by modulating the redox responses in animals exposed to HRCC smoke.