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1.
Med Teach ; : 1-6, 2024 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-38295519

RESUMO

INTRODUCTION: The development of clinical skills requires the appropriate use of self-regulated learning (SRL). Students' use of key SRL processes as they perform a clinical skill can be identified by SRL microanalysis and used to provide feedback. SRL-microanalysis feedback only on students' key SRL processes has not been previously researched for developing clinical skills. The aim of this study was to investigate whether SRL-microanalysis feedback only on students' key SRL processes can improve both their use of SRL and their clinical skill performance. METHODS: Twenty-three final year medical students with no experience in the clinical skill required for mechanical ventilation participated in this study. Key SRL processes and clinical skill performance were measured before and after SRL microanalysis feedback. RESULTS: Overall, we found an improvement in the key SRL processes of planning and monitoring of performance, with a significant difference in monitoring. We also found an increase in students' clinical skill performance. DISCUSSION: This study, which is the first in clinical skills, demonstrated that SRL microanalysis feedback only on key SRL processes can improve both students' SRL and their clinical skill performance. studies are recommended with a great number of students and across a variety of clinical skills.

2.
Med Teach ; 45(8): 845-851, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-36840707

RESUMO

INTRODUCTION: Clinical vignette-type multiple choice questions (CV-MCQs) are widely used in assessment and identifying the response process validity (RPV) of questions with low and high integration of knowledge is essential. Answering CV-MCQs of different levels of knowledge application and integration can be understood from a cognitive workload perspective and this can be identified by using eye-tracking. The aim of the pilot study was to identify the cognitive workload and RPV of CV-MCQs of different levels of knowledge application and integration by the use eye-tracking. METHODS: Fourteen fourth-year medical students answered a test with 40 CV-MCQs, which were equally divided into low-level and high-level complexity (knowledge application and integration). Cognitive workload was measured using screen-based eye tracking, with the number of fixations and revisitations for each area of interest. RESULTS: We found a higher cognitive workload for high-level complexity (M = 121.74) compared with lower-level complexity questions (M = 51.94) and also for participants who answered questions incorrectly (M = 94.31) compared with correctly (M = 79.36). CONCLUSION: Eye-tracking has the potential to become a useful and practical approach for helping to identify the RPV of CV-MCQs. This approach can be used for improving the design and development of CV-MCQs, and to provide feedback to inform teaching and learning.[Box: see text].


Assuntos
Avaliação Educacional , Tecnologia de Rastreamento Ocular , Humanos , Projetos Piloto , Aprendizagem , Retroalimentação
3.
Ultrasound Med Biol ; 49(2): 626-634, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36456376

RESUMO

Prolonged mechanical ventilation (PMV) is common among critically ill septic patients and leads to serious adverse effects. Transthoracic echocardiography (TTE) is an efficient tool for the assessment of septic shock. Our study investigated the relationship between TTE parameters and PMV in mechanically ventilated septic shock patients. TTE was performed in the first 24 h of intensive care unit admission, acquiring data on cardiac output (CO), cardiac index (CI), s' wave (s'), E wave (E), e' wave (e') and E/e' ratio. We compared data on patients who met the criteria for PMV with data on patients who did not. Sixty-four patients were included, 26 of whom met the criteria for PMV. CO, CI and s' were higher in patients who required PMV (5.49 vs. 4.20, p = 0.02; 2.95 vs. 2.34, p = 0.04; and 12.56 vs. 9.81, p = 0.01, respectively). CI correlated with s' (r = 0.37, p < 0.01). The areas under the receiver operating characteristic curves for CO, CI and s' in assessing the need for PMV were, respectively, 0.7 (fair results), 0.69 and 0.68 (poor results). Despite a lack of a prognostic model, the observed differences suggest that hemodynamic TTE could provide information on the risk of PMV in septic shock.


Assuntos
Respiração Artificial , Choque Séptico , Humanos , Respiração Artificial/métodos , Projetos Piloto , Choque Séptico/diagnóstico por imagem , Ecocardiografia , Unidades de Terapia Intensiva , Hemodinâmica
4.
Ultrasound Med Biol ; 48(10): 2119-2127, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35948457

RESUMO

Described here is the implementation of a lung ultrasound course for physiotherapists focused on the acquisition and retention of knowledge and skills. Initially, we provided online lectures in a virtual learning environment (VLE), in which we taught the semiquantification of edema through a lung ultrasound score (LUS). Afterward, the physiotherapists participated in face-to-face lectures (which resumed the online lectures), followed by hands-on training and simulation with ultrasound. We assessed knowledge acquisition through a multiple-choice test with 30 questions (totaling 10 points). The test was applied before accessing the VLE (pre-VLE), before the face-to-face course and at its end (pre- and post-course). Physiotherapists collected actual patients' ultrasound scans, which were uploaded to the VLE and assessed by three supervisors, who performed a consensus LUS calculation and gave virtual written feedback. Thirteen physiotherapists collected 59 exams. The test results were 3.60 ± 1.58 (pre-VLE), 5.94 ± 1.45 (pre-course) and 8.50 ± 0.71 (post-course), with p < 0.001 for all. The intraclass correlation coefficient for LUS between physiotherapists and supervisors was 0.814 (p < 0.001), with moderate-to-weak agreement for LUS of the lung apical, median and basal zones, with κ = 0.455.334, and 0.417 (p < 0.001 for all). Trainees were found to have increased short-term acquisition and retention of knowledge and skills, with a good intraclass correlation coefficient between them and the consensus of supervisors for the LUS of actual patients.


Assuntos
Pneumopatias , Fisioterapeutas , Currículo , Humanos , Pulmão , Ultrassonografia
5.
Rev Bras Ter Intensiva ; 34(1): 166-175, 2022.
Artigo em Português, Inglês | MEDLINE | ID: mdl-35766666

RESUMO

OBJECTIVE: To assess whether scales of physical functional performance and the surprise question ("Would I be surprised if this patient died in 6 months?") predict life support limitations and mortality in critically ill nonsurgical patients. METHODS: We included 114 patients admitted from the Emergency Department to an intensive care unit in this prospective cohort. Physical functional performance was assessed by the Palliative Prognostic Score, Karnofsky Performance Status, and the Katz Activities of Daily Living scale. Two intensivists responded to the surprise question. RESULTS: The proposed physical functional performance scores were significantly lower in patients with life support limitations and those who died during the hospital stay. A negative response to the surprise question was more frequent in the same subset of patients. Adjusted univariable analysis showed an increased odds ratio for life support limitations and death regarding the activities of daily living scale (1.35 [1.01 - 1.78] and 1.34 [1.0 - 1.79], respectively) and a negative response for the surprise question (42.35 [11.62 - 154.43] and 47.79 [11.41 - 200.25], respectively); with a p < 0.05 for all results. CONCLUSION: All physical functional performance scales showed lower scores in nonsurvivors and patients with life support limitations. The activities of daily living score and the surprise question increased the odds of life support limitations and mortality in our cohort of nonsurgical intensive care unit patients admitted from the Emergency Department.


OBJETIVO: Avaliar se as escalas de desempenho físico funcional e a pergunta surpresa ("Eu ficaria surpreso se esse paciente morresse em 6 meses?") predizem limitações de suporte de vida e mortalidade em pacientes críticos não cirúrgicos. METÓDOS: Participaram desta coorte prospectiva 114 pacientes admitidos do serviço de emergência em uma unidade de terapia intensiva. O desempenho físico funcional foi avaliado pelo Palliative Prognostic Score, pela Escala de Desempenho de Karnofsky e pela escala de Atividades de Vida Diária de Katz. Dois intensivistas responderam à pergunta surpresa. RESULTADOS: Os escores de desempenho físico funcional propostos foram significativamente menores em pacientes com limitações de suporte de vida e naqueles que vieram a óbito durante a hospitalização. A resposta negativa à pergunta surpresa foi mais frequente no mesmo subgrupo de pacientes. A análise univariada ajustada mostrou aumento da razão de chances para limitações de suporte de vida e morte em relação à escala de Atividades de Vida Diária (1,35 [1,01 - 1,78] e 1,34 [1,0 - 1,79], respectivamente) e uma resposta negativa para a pergunta surpresa (42,35 [11,62 - 154,43] e 47,79 [11,41 - 200,25], respectivamente), com p < 0,05 para todos os resultados. CONCLUSÃO: Todas as escalas de desempenho físico funcional apresentaram escores mais baixos em não sobreviventes e em pacientes com limitações de suporte de vida. A redução da capacidade funcional prévia à internação e a resposta negativa à pergunta surpresa aumentaram as chances de limitações de suporte de vida e mortalidade em nossa coorte de pacientes não cirúrgicos da unidade de terapia intensiva com entrada no serviço de emergência.


Assuntos
Atividades Cotidianas , Hospitalização , Humanos , Unidades de Terapia Intensiva , Cuidados Paliativos/métodos , Desempenho Físico Funcional , Estudos Prospectivos
6.
Rev. bras. ter. intensiva ; 34(1): 166-175, jan.-mar. 2022. tab, graf
Artigo em Português | LILACS-Express | LILACS | ID: biblio-1388051

RESUMO

RESUMO Objetivo: Avaliar se as escalas de desempenho físico funcional e a pergunta surpresa ("Eu ficaria surpreso se esse paciente morresse em 6 meses?") predizem limitações de suporte de vida e mortalidade em pacientes críticos não cirúrgicos. Metódos: Participaram desta coorte prospectiva 114 pacientes admitidos do serviço de emergência em uma unidade de terapia intensiva. O desempenho físico funcional foi avaliado pelo Palliative Prognostic Score, pela Escala de Desempenho de Karnofsky e pela escala de Atividades de Vida Diária de Katz. Dois intensivistas responderam à pergunta surpresa. Resultados: Os escores de desempenho físico funcional propostos foram significativamente menores em pacientes com limitações de suporte de vida e naqueles que vieram a óbito durante a hospitalização. A resposta negativa à pergunta surpresa foi mais frequente no mesmo subgrupo de pacientes. A análise univariada ajustada mostrou aumento da razão de chances para limitações de suporte de vida e morte em relação à escala de Atividades de Vida Diária (1,35 [1,01 - 1,78] e 1,34 [1,0 - 1,79], respectivamente) e uma resposta negativa para a pergunta surpresa (42,35 [11,62 - 154,43] e 47,79 [11,41 - 200,25], respectivamente), com p < 0,05 para todos os resultados. Conclusão: Todas as escalas de desempenho físico funcional apresentaram escores mais baixos em não sobreviventes e em pacientes com limitações de suporte de vida. A redução da capacidade funcional prévia à internação e a resposta negativa à pergunta surpresa aumentaram as chances de limitações de suporte de vida e mortalidade em nossa coorte de pacientes não cirúrgicos da unidade de terapia intensiva com entrada no serviço de emergência.


ABSTRACT Objective: To assess whether scales of physical functional performance and the surprise question ("Would I be surprised if this patient died in 6 months?") predict life support limitations and mortality in critically ill nonsurgical patients. Methods: We included 114 patients admitted from the Emergency Department to an intensive care unit in this prospective cohort. Physical functional performance was assessed by the Palliative Prognostic Score, Karnofsky Performance Status, and the Katz Activities of Daily Living scale. Two intensivists responded to the surprise question. Results: The proposed physical functional performance scores were significantly lower in patients with life support limitations and those who died during the hospital stay. A negative response to the surprise question was more frequent in the same subset of patients. Adjusted univariable analysis showed an increased odds ratio for life support limitations and death regarding the activities of daily living scale (1.35 [1.01 - 1.78] and 1.34 [1.0 - 1.79], respectively) and a negative response for the surprise question (42.35 [11.62 - 154.43] and 47.79 [11.41 - 200.25], respectively); with a p < 0.05 for all results. Conclusion: All physical functional performance scales showed lower scores in nonsurvivors and patients with life support limitations. The activities of daily living score and the surprise question increased the odds of life support limitations and mortality in our cohort of nonsurgical intensive care unit patients admitted from the Emergency Department.

7.
Sao Paulo Med J ; 139(5): 514-519, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34378741

RESUMO

BACKGROUND: Coronavirus disease-19 (COVID-19) has imposed a new reality that presents several challenges for healthcare professionals. The main challenge has been the lack of proper training in relation to an unknown disease. OBJECTIVE: To investigate healthcare professionals' acquisition of knowledge of a new airway management protocol for COVID-19 through their participation in simulation training. DESIGN AND SETTING: Pre and post-test study with purpose sampling, carried out in a tertiary-level hospital in the city of Campinas, state of São Paulo, Brazil. METHODS: This was a cross-sectional pre and post-test intervention among healthcare professionals working in the intensive care unit and emergency department of a large hospital. The training was carried out using an in situ simulation scenario and the participants answered pre and post-tests consisting of a 20-item questionnaire about the new protocol. RESULTS: The paired-sample t test demonstrated that there was a significant increase in test score (t = -19.06; P < 0.001), from before the training (M = 8.62; standard deviation, SD = 3.53) to after the simulation training (M = 17.02; SD = 1.76). CONCLUSIONS: The simulated training had a positive impact on the healthcare professionals' acquisition of the COVID-19 protocol. We also demonstrated that in situ simulation training was an efficient tool for implementing new protocols, thus bringing benefits to healthcare systems, professionals and patients.


Assuntos
COVID-19 , Treinamento por Simulação , Brasil , Estudos Transversais , Atenção à Saúde , Humanos , SARS-CoV-2
8.
São Paulo med. j ; 139(5): 514-519, May 2021. tab
Artigo em Inglês | LILACS | ID: biblio-1290258

RESUMO

ABSTRACT BACKGROUND: Coronavirus disease-19 (COVID-19) has imposed a new reality that presents several challenges for healthcare professionals. The main challenge has been the lack of proper training in relation to an unknown disease. OBJECTIVE: To investigate healthcare professionals' acquisition of knowledge of a new airway management protocol for COVID-19 through their participation in simulation training. DESIGN AND SETTING: Pre and post-test study with purpose sampling, carried out in a tertiary-level hospital in the city of Campinas, state of São Paulo, Brazil. METHODS: This was a cross-sectional pre and post-test intervention among healthcare professionals working in the intensive care unit and emergency department of a large hospital. The training was carried out using an in situ simulation scenario and the participants answered pre and post-tests consisting of a 20-item questionnaire about the new protocol. RESULTS: The paired-sample t test demonstrated that there was a significant increase in test score (t = −19.06; P < 0.001), from before the training (M = 8.62; standard deviation, SD = 3.53) to after the simulation training (M = 17.02; SD = 1.76). CONCLUSIONS: The simulated training had a positive impact on the healthcare professionals' acquisition of the COVID-19 protocol. We also demonstrated that in situ simulation training was an efficient tool for implementing new protocols, thus bringing benefits to healthcare systems, professionals and patients.


Assuntos
Humanos , Treinamento por Simulação , COVID-19 , Brasil , Estudos Transversais , Atenção à Saúde , SARS-CoV-2
9.
Viruses ; 13(2)2021 02 16.
Artigo em Inglês | MEDLINE | ID: mdl-33669276

RESUMO

Background: Coronavirus disease 19 (COVID-19) can develop into a severe respiratory syndrome that results in up to 40% mortality. Acute lung inflammatory edema is a major pathological finding in autopsies explaining O2 diffusion failure and hypoxemia. Only dexamethasone has been shown to reduce mortality in severe cases, further supporting a role for inflammation in disease severity. SARS-CoV-2 enters cells employing angiotensin-converting enzyme 2 (ACE2) as a receptor, which is highly expressed in lung alveolar cells. ACE2 is one of the components of the cellular machinery that inactivates the potent inflammatory agent bradykinin, and SARS-CoV-2 infection could interfere with the catalytic activity of ACE2, leading to the accumulation of bradykinin. Methods: In this case control study, we tested two pharmacological inhibitors of the kinin-kallikrein system that are currently approved for the treatment of hereditary angioedema, icatibant, and inhibitor of C1 esterase/kallikrein, in a group of 30 patients with severe COVID-19. Results: Neither icatibant nor inhibitor of C1 esterase/kallikrein resulted in changes in time to clinical improvement. However, both compounds were safe and promoted the significant improvement of lung computed tomography scores and increased blood eosinophils, which are indicators of disease recovery. Conclusions: In this small cohort, we found evidence for safety and a beneficial role of pharmacological inhibition of the kinin-kallikrein system in two markers that indicate improved disease recovery.


Assuntos
Bradicinina/análogos & derivados , Tratamento Farmacológico da COVID-19 , Proteína Inibidora do Complemento C1/uso terapêutico , Sistema Calicreína-Cinina/efeitos dos fármacos , Calicreínas/antagonistas & inibidores , Adulto , Idoso , Bradicinina/uso terapêutico , Estudos de Casos e Controles , Reposicionamento de Medicamentos , Feminino , Humanos , Pulmão/efeitos dos fármacos , Pulmão/patologia , Masculino , Pessoa de Meia-Idade
10.
Trials ; 22(1): 71, 2021 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-33472675

RESUMO

BACKGROUND: SARS-CoV-2, the virus that causes COVID-19, enters the cells through a mechanism dependent on its binding to angiotensin-converting enzyme 2 (ACE2), a protein highly expressed in the lungs. The putative viral-induced inhibition of ACE2 could result in the defective degradation of bradykinin, a potent inflammatory substance. We hypothesize that increased bradykinin in the lungs is an important mechanism driving the development of pneumonia and respiratory failure in COVID-19. METHODS: This is a phase II, single-center, three-armed parallel-group, open-label, active control superiority randomized clinical trial. One hundred eighty eligible patients will be randomly assigned in a 1:1:1 ratio to receive either the inhibitor of C1e/kallikrein 20 U/kg intravenously on day 1 and day 4 plus standard care; or icatibant 30 mg subcutaneously, three doses/day for 4 days plus standard care; or standard care alone, as recommended in the clinical trials published to date, which includes supplemental oxygen, non-invasive and invasive ventilation, antibiotic agents, anti-inflammatory agents, prophylactic antithrombotic therapy, vasopressor support, and renal replacement therapy. DISCUSSION: Accumulation of bradykinin in the lungs is a common side effect of ACE inhibitors leading to cough. In animal models, the inactivation of ACE2 leads to severe acute pneumonitis in response to lipopolysaccharide (LPS), and the inhibition of bradykinin almost completely restores the lung structure. We believe that inhibition of bradykinin in severe COVID-19 patients could reduce the lung inflammatory response, impacting positively on the severity of disease and mortality rates. TRIAL REGISTRATION: Brazilian Clinical Trials Registry Universal Trial Number (UTN) U1111-1250-1843. Registered on May/5/2020.


Assuntos
Bradicinina/análogos & derivados , Tratamento Farmacológico da COVID-19 , Proteína Inibidora do Complemento C1/administração & dosagem , Insuficiência Respiratória/tratamento farmacológico , Adulto , Enzima de Conversão de Angiotensina 2/metabolismo , Bradicinina/administração & dosagem , Bradicinina/efeitos adversos , Bradicinina/antagonistas & inibidores , Bradicinina/imunologia , Bradicinina/metabolismo , Antagonistas de Receptor B2 da Bradicinina/administração & dosagem , Antagonistas de Receptor B2 da Bradicinina/efeitos adversos , Brasil , COVID-19/complicações , COVID-19/imunologia , COVID-19/virologia , Ensaios Clínicos Fase II como Assunto , Proteína Inibidora do Complemento C1/efeitos adversos , Esquema de Medicação , Quimioterapia Combinada/efeitos adversos , Quimioterapia Combinada/métodos , Humanos , Injeções Intravenosas , Injeções Subcutâneas , Calicreínas/antagonistas & inibidores , Calicreínas/metabolismo , Ensaios Clínicos Controlados Aleatórios como Assunto , Insuficiência Respiratória/imunologia , Insuficiência Respiratória/virologia , SARS-CoV-2/isolamento & purificação , SARS-CoV-2/patogenicidade , Índice de Gravidade de Doença , Resultado do Tratamento
11.
Cad. pesqui ; 50(175): 160-185, enero-mar. 2020. graf
Artigo em Inglês | LILACS-Express | LILACS, INDEXPSI | ID: biblio-1132900

RESUMO

Abstract This paper presents the results of a study that aims to understand the relations that 9th-grade students establish with the Rio Doce in the context of the Fundão dam rupture. The theoretical and methodological basis is the contributions of Bernard Charlot through a dialogue with the field of environmental education. The data was generated through the inventory of knowledge and interviews. The results indicate the preponderance of affective learning over the school and citizen learning. In turn, it is towards the school that students direct their learning demands, giving them meanings in the context of the socio-technical disaster. The importance of the school for collective decision-making and socially responsible action in the context of the disaster is therefore affirmed.


RÉSUMÉ Ce texte présente les résultats d'une étude visant à comprendre les rapports que des élèves de troisième entretiennent avec le Rio Doce après la rupture du barrage minier du Fundão. Le cadre théorique et méthodologique est basé sur la contribution de Bernard Charlot en dialogue avec le domaine de l'éducation environnementale. Les données ont été obtenues par moyen d'un bilan de la litterature et d'entretiens. Les résultats indiquent que les apprentissages d'ordre affectif prédominent sur les apprentissages scolaires et citoyens. Ce sont les élèves eux-mêmes qui demandent à l'école des enseignements qu'ils considerent significatifs dans le contexte du désastre socio-technique. L'importance de l'école dans la prise de décisions collectives et pour l'action socialement responsable dans le contexte du désastre est soulignée.


Resumen El texto presenta los resultados de un estudio que tiene como objetivo comprender las relaciones que los estudiantes de noveno año de enseñanza básica establecen con el río Doce en el contexto de la ruptura de la presa de Fundão. Las aportaciones teórica y metodológica vienen dadas por las ideas de Bernard Charlot en diálogo con el área de la educación ambiental. Los datos se generaron a través de un equilibrio entre inventários de saber y entrevistas. Los resultados indican una preponderancia del aprendizaje afectivo sobre el aprendizaje escolar y ciudadano. A su vez, es a la escuela donde los estudiantes dirigen sus demandas de aprendizaje, asignándoles sentidos en el contexto del desastre socio-técnico. Se afirma la importancia de la escuela para la toma de decisiones colectivas y para actuar en el contexto del desastre de una manera socialmente responsable.


Resumo O texto apresenta resultados de um estudo que visa a compreender as relações que estudantes do 9º ano do Ensino Fundamental estabelecem com o rio Doce no contexto do rompimento da barragem de Fundão. O aporte teórico e metodológico são as contribuições de Bernard Charlot em diálogo com o campo da educação ambiental. Os dados foram gerados por meio de balanço de saber e de entrevistas. Os resultados indicam preponderância de aprendizagens afetivas sobre as aprendizagens escolares e cidadãs. Por sua vez, é para a escola que os estudantes direcionam suas demandas de aprendizagens, atribuindo-lhes sentidos no contexto do desastre sociotécnico. Afirma-se a importância da escola para a tomada de decisões coletivas e para a atuação no contexto do desastre de forma socialmente responsável.

12.
Arch Dis Child ; 103(10): 952-956, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29618485

RESUMO

OBJECTIVE: We investigated whether ultrasound guidance was advantageous over the anatomical landmark technique when performed by inexperienced paediatricians. DESIGN: Randomised controlled trial. SETTING: A paediatric intensive care unit of a teaching hospital. PATIENTS: 80 children (aged 28 days to <14 years). INTERVENTIONS: Internal jugular vein cannulation with ultrasound guidance in real time or the anatomical landmark technique. MAIN OUTCOME MEASURES: Success rate, success rate on the first attempt, success rate within three attempts, puncture time, number of attempts required for success and occurrence of complications. RESULTS: We found a higher success rate in the ultrasound guidance than in the control group (95% vs 61%, respectively; p<0.001; relative risk (RR)=0.64, 95% CI (CI) 0.50 to 0.83). Success on the first attempt was seen in 95% and 34% of venous punctures in the US guidance and control groups, respectively (p<0.001; RR=0.35, 95% CI 0.23 to 0.54). Fewer than three attempts were required to achieve success in 95% of patients in the US guidance group but only 44% in the control group (p<0.001; RR=0.46, 95% CI 0.32 to 0.66). Haematomas, inadvertent arterial punctures, the number of attempts and the puncture time were all significantly lower in the ultrasound guidance than in the control group (p<0.015 for all). CONCLUSIONS: Critically ill children may benefit from the ultrasound guidance for internal jugular cannulation, even when the procedure is performed by operators with limited experience. TRIAL REGISTRATION NUMBER: RBR-4t35tk.


Assuntos
Cateterismo , Veias Jugulares/cirurgia , Complicações Pós-Operatórias , Ultrassonografia de Intervenção/métodos , Adolescente , Cateterismo/efeitos adversos , Cateterismo/métodos , Cateterismo/normas , Criança , Pré-Escolar , Competência Clínica , Feminino , Humanos , Lactente , Unidades de Terapia Intensiva Pediátrica/estatística & dados numéricos , Masculino , Avaliação de Processos e Resultados em Cuidados de Saúde , Pediatras/normas , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologia
13.
J Crit Care ; 42: 162-167, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28746898

RESUMO

PURPOSE: Endothelial barrier dysfunction is a hallmark of sepsis, and is at least partially mediated by pathways that regulate endothelial barrier assembly during angiogenesis. Not surprisingly, increased levels of key angiogenic proteins such as VEGF-A and Angiopoietin-2 have been described in sepsis. The purpose of this study was to investigate if additional pathways that regulate endothelial barrier integrity during angiogenesis could also be involved in the host response of sepsis. MATERIAL AND METHODS: We evaluated circulating levels of four proteins involved in angiogenesis, not previously studied in sepsis, in a cohort of 50 patients with severe sepsis and septic shock. RESULTS: Circulating levels of BMP-9 and FGF-2 were similar in patients and healthy volunteers. In contrast, patients with septic shock presented 1.5-fold higher levels of endoglin (P=0.004), and 2-fold lower levels of Heparin-Binding EGF-like growth factor (HB-EGF) (P=0.002) when compared to healthy individuals. Of note, HB-EGF deficiency has been recently demonstrated to be detrimental to survival in a murine model of sepsis. CONCLUSIONS: Endoglin and HB-EGF could be involved in the host response of sepsis. Additional studies are warrant to investigate their role as biomarker or therapeutic targets in sepsis.


Assuntos
Endoglina/sangue , Fator 2 de Crescimento de Fibroblastos/sangue , Fatores de Diferenciação de Crescimento/sangue , Fator de Crescimento Semelhante a EGF de Ligação à Heparina/sangue , Sepse/sangue , Choque Séptico/sangue , Adulto , Idoso , Animais , Feminino , Fator 2 de Diferenciação de Crescimento , Humanos , Masculino , Pessoa de Meia-Idade , Sepse/fisiopatologia , Choque Séptico/fisiopatologia , Transdução de Sinais
14.
Medicine (Baltimore) ; 96(10): e6299, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28272257

RESUMO

We prospectively evaluated afebrile patients admitted to an emergency department (ED), with suspected infection and only tachycardia or tachypnea.The white blood cell count (WBC) was obtained, and patients were considered septic if leukocyte count was >12,000 µL-1 or <4000 µL-1 or with >10% of band forms. Clinical data were collected to examine whether sepsis could be predicted.Seventy patients were included and 37 (52.86%) met sepsis criteria. Self-measured fever showed an odds ratio (OR) of 5.936 (CI95% 1.450-24.295; P = 0.0133) and increased pulse pressure (PP) showed an OR of 1.405 (CI95% 1.004-1.964; P = 0.0471) on multivariate analysis. When vital signs were included in multivariate analysis, the heart rate showed an OR of 2.112 (CI95% 1.400-3.188; P = 0.0004). Self-measured fever and mean arterial pressure <70 mm Hg had high positive likelihood ratios (3.86 and 2.08, respectively). The nomogram for self-measured fever showed an increase of sepsis chance from 53% (pretest) to approximately 80% (post-test).The recognition of self-measured fever, increased PP, and the intensity of heart rate response may improve sepsis recognition in afebrile patients with tachycardia or tachypnea. These results are important for medical assessment of sepsis in remote areas, crowded and low-resourced EDs, and low-income countries, where WBC may not be readily available.


Assuntos
Sepse/diagnóstico , Adulto , Idoso , Feminino , Humanos , Contagem de Leucócitos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Sepse/fisiopatologia , Taquicardia , Taquipneia
15.
J Emerg Med ; 49(6): 907-15, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26281809

RESUMO

BACKGROUND: Assessment of sepsis severity is challenging. Available scoring systems require laboratory data. Therefore, a rapid tool would be useful. OBJECTIVE: To determine the role of mitral valve tissue Doppler imaging (TDI) as a prognostic tool in septic patients. METHODS: For this prospective cohort, newly admitted septic patients received TDI measurements of s wave (s), e' wave (e'), and E/e' ratio (E/e') within 5 min of resuscitation. Results were compared with sepsis severity measured by Mortality in Emergency Department Sepsis (MEDS), Simplified Acute Physiology Score (SAPS) 3, and Sequential Organ Failure Assessment (SOFA). RESULTS: Over 3 months, 63 patients were enrolled. TDI parameters correlated with MEDS, SAPS 3, and SOFA (r = -0.53, r = -0.55, r = -0.36, respectively, for s, p < 0.005; r = -0.56, r = -0.49, r = -0.40, respectively, for e', p < 0.005; and r = 0.56; r = 0.48; r = 0.46, respectively, for E/e', p < 0.005). Mean s and e' decreased among sepsis, severe sepsis, and septic shock patients (14.2; 12.05; 10.14 cm/s, respectively, for s, p = 0.0048 and 18.28; 15.14; 12.12 cm/s, respectively, for e', p = 0.003), whereas mean E/e' increased among sepsis stages (4.76; 6.51; and 8.14, respectively, p = 0.001). Mean s and e' were higher in survivors (13.25 vs. 7.33 cm/s, for s, p < 0.0001; and 16.4 vs. 9 cm/s for e', p = 0.0025); mean E/e' was higher in nonsurvivors (10.85 vs. 5.63, p < 0.0001). On univariate analysis, odds ratios (ORs) for death related to s, e', and E/e' were, respectively, 0.517 (95% confidence interval [CI] 0.344-0.775), 0.60 (95% CI 0.433-0.833), and 1.953 (95% CI 1.256-3.008); p < 0.05 for all. Multiple logistic analysis showed an OR of 1.737 (95% CI 1.037-2.907, p = 0.035) for death related to E/e'. CONCLUSION: TDI may be useful to assess disease severity and prognosis in newly diagnosed septic patients.


Assuntos
Ecocardiografia Doppler , Serviço Hospitalar de Emergência , Sepse/diagnóstico por imagem , Disfunção Ventricular Esquerda/diagnóstico por imagem , Feminino , Indicadores Básicos de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Estudos Prospectivos , Ressuscitação , Sepse/terapia , Índice de Gravidade de Doença
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