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INTRODUCTION/AIMS: Nerve conduction studies (NCSs) are widely used to support the clinical diagnosis of neuromuscular disorders. The aims of this study were to obtain reference values for peroneal, tibial, and sural NCSs and to examine the associations with demographic and anthropometric factors. METHODS: In 5099 participants (aged 40-79 years) without type 2 diabetes of The Maastricht Study, NCSs of peroneal, tibial, and sural nerves were performed. Values for compound muscle action potential (CMAP) and sensory nerve action potential amplitude, nerve conduction velocity (NCV), and distal latency were acquired. The association of age, sex, body mass index (BMI), and height with NCS values was determined using uni- and multivariate linear regression analyses. RESULTS: Detailed reference values are reported per decade for men and women. Significantly lower NCVs and longer distal latencies were observed in all nerves in older and taller individuals as well as in men. In these groups, amplitudes of the tibial and sural nerves were significantly lower, whereas a lower peroneal nerve CMAP was only significantly associated with age. BMI showed a multidirectional association. After correction for anthropometric factors in the multivariate analysis, the association between sex and NCS values was less straightforward. DISCUSSION: These values from a population-based dataset could be used as a reference for generating normative values. Our findings show the association of NCS values with anthropometric factors. In clinical practice, these factors can be considered when interpreting NCS values.
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Diabetes Mellitus Tipo 2 , Nervo Sural , Masculino , Humanos , Feminino , Idoso , Nervo Tibial/fisiologia , Estudos de Condução Nervosa , Condução Nervosa/fisiologia , Valores de Referência , Nervo Fibular/fisiologia , DemografiaRESUMO
Although the relationships among acute stress, cardiorespiratory fitness (CRF), and cognitive function have been examined, whether CRF is related to behavioral and neuroelectric indices of inhibitory control following acute stress remains unknown. The purpose of the current study was to investigate the combined influence of acute stress and CRF on inhibitory control. Participants, aged 20-30 years, were stratified into the Higher-Fit (n = 31) and the Lower-Fit (n = 32) groups, and completed a Stroop task following the modified Maastricht Acute Stress Test (MAST) in the stress condition and the sham-MAST in the non-stress condition, during which electroencephalography was recorded. Behavioral (i.e., response time and accuracy) and neuroelectric (N2 and P3b components of the event-related potential) outcomes of inhibitory control were obtained. While the Higher-Fit group demonstrated shorter response times and higher accuracy than the Lower-Fit group following both the MAST and the sham-MAST, they also exhibited selective benefits of acute stress on inhibitory control performance (i.e., decreased response times and diminished interference scores). CRF-dependent alterations in neuroelectric indices were also observed, with the Higher-Fit group displaying smaller N2 and greater P3b amplitudes than the Lower-Fit group following the sham-MAST, and increased N2 and attenuated P3b amplitudes following the MAST. Collectively, these findings not only confirm the positive relationship between CRF and inhibitory control but also provide novel insights into the potential influence of CRF on inhibitory control and associated neuroelectric activity following acute stress.
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INTRODUCTION: Our main objective was to investigate whether retinal neurodegeneration, estimated from lower thickness of inner retinal layers, was associated with incident all-cause dementia and Alzheimer's disease (AD). METHODS: We performed an individual participant data meta-analysis using unpublished data from four prospective cohort studies with a total of 69,955 participants (n = 1087 cases of incident all-cause dementia; n = 520 cases incident AD; follow-up time median [interquartile range] 11.3 [8.8-11.5] years). RESULTS: General baseline characteristics of the study population were mean (standard deviation) age, 58.1 (8.8) years; 47% women. After adjustment, lower baseline macular retinal nerve fiber layer thickness was significantly associated with a 10% and 11% higher incidence of all-cause dementia and AD, respectively. Lower baseline macular ganglion cell-inner plexiform layer thickness was not significantly associated with these outcomes. DISCUSSION: These findings suggest that retinal neurodegeneration precedes the onset of clinical dementia. Retinal imaging tools may be informative biomarkers for the study of the early pathophysiology of dementia.
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Doença de Alzheimer , Tomografia de Coerência Óptica , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Estudos Prospectivos , Tomografia de Coerência Óptica/métodos , Retina/diagnóstico por imagem , Doença de Alzheimer/diagnóstico por imagem , Doença de Alzheimer/epidemiologia , Doença de Alzheimer/complicações , Análise de DadosRESUMO
Vital Exhaustion (VE) refers to a physical and mental state of excessive fatigue, feelings of demoralization, hopelessness, and increased irritability. The short form of the Maastricht Vital Exhaustion Questionnaire (MVEQ) is a widely used measure to assess VE. Despite its utility is broadly recognized, the validity and reliability of the scale have yet to be examined in the Italian context. The present study aimed to evaluate the psychometric properties of the shortened MVEQ in a community sample of Italian older adults. A total of 722 older adults (Mage = 72.97, SD = 7.71; 60.4% females) completed the MVEQ, as well as other self-report questionnaires assessing anxiety, depression and stress in order to evaluate the criterion-related validity of the scale. A confirmatory factor analysis (CFA) was conducted to examine the original MVEQ latent structure. Internal consistency was assessed through model-based omega coefficient. Test-retest reliability was examined by re-administering the MVEQ after three months to a subsample of 568 participants. Factorial invariance tests across gender were conducted by means of multi-group CFAs. The one-factor model showed an acceptable fit to the data. The MVEQ yielded a reliable total score (ω = 0.822) and showed moderate-to-large correlations with measures of anxiety, depression, and stress (r range 0.30 to 0.75, ps < 0.001). Test-retest reliability was supported by an Intraclass Correlation Coefficient (ICC) of 0.661. Lastly, the scale was factorially invariant across gender. Overall, the MVEQ provided evidence of reliability and criterion-related validity in a sample of Italian older adults and may be useful for both clinical and research practices.
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BACKGROUND: Organ donation continues to increase worldwide, but in general paediatric patients remain less likely to receive a transplant. The inclusion of neonates as donors after cDCD should be considered in an effort to increase donation rates. METHODS: The survey for a cross-sectional national study of potential cDCD neonatal donors (Maastricht type III) was sent to all 90 level III Spanish neonatal units to explore: 1) protocols, education, and specific opinions on donation and 2) potential cDCD that could have been eligible over a 2-year period (2014-2015). RESULTS: Forty-five centers (50%) completed the survey, and 38/45 gave information about potential eligible donors. In 16% of the centers specific protocols on neonatal donation exist. All hospitals demanded more specific training, and 65% noted that the donation process could be a problem in the family's dismissal of the child. During the study period 46 805 neonates were admitted in the 38 centers, and 625 neonates died. Ninety-five born at a gestational age ≥34 weeks and above 2000 gr died after an EoL decision, 38 (40%) and 13 (14%) of them due to neonatal encephalopathy and multiple congenital anomalies, respectively. There were 31 (33%) elegible infants who died in less than 120 min due to pathologies that did not contraindicate donation. CONCLUSIONS: Neonatal cDCD could help to reduce the gap between the supply of and demand for organs according to the potentially eligible patients emerging from this study. Training in EoL and donation processes should be provided to healthcare professionals.
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Seleção do Doador/métodos , Unidades de Terapia Intensiva Neonatal , Morte Perinatal , Atitude do Pessoal de Saúde , Competência Clínica , Tomada de Decisão Clínica/métodos , Protocolos Clínicos , Seleção do Doador/normas , Feminino , Pesquisas sobre Atenção à Saúde , Humanos , Recém-Nascido , Masculino , Estudos Retrospectivos , Espanha , Assistência Terminal/métodos , Assistência Terminal/normasRESUMO
It is assumed that the production of cortisol is modulated by light exposure. While initial evidence supports this principal effect, the specific effect of light (intensity and wavelength) onto the cortisol stress response is still not completely understood. One between-subject experiment was conducted in a standardized sleep laboratory setting to investigate the effect of light intensity (dim white vs. bright white light) and spectral composition (red vs. blue) on the cortisol response after the Maastricht Acute Stress Test (MAST). 112 healthy young males (24.83 ± 4.10 years of age) were randomly assigned to one of the four light conditions. Across conditions, light exposure was conducted for one-hour post-awakening and the light effect was measured based on eight saliva samples. The analysis indicates significant main effects for time and light condition as well as a significant interaction effect. Notably, bright light exposure evoked the highest cortisol levels when compared to dim white, red, and blue light. Our findings illustrate the crucial role of light intensity and wavelength for the cortisol stress response, in line with current theoretical knowledge of underlying neurobiological mechanisms. LAY SUMMARY Effects of different light sources were tested on healthy male adults in the morning after a stress test. Their stress responses showed that a bright light exposure increased the stress hormone level greatest compared to dim white, red or blue light sources. Findings point toward the crucial role of light intensity associated with the hormonal stress response.
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Hidrocortisona , Melatonina , Adulto , Ritmo Circadiano , Humanos , Masculino , Saliva , Estresse PsicológicoRESUMO
BACKGROUND: Helicobacter pylori (H pylori) eradication is becoming increasingly difficult. The aim of our study was to determine the knowledge of current guidelines and attitude in the diagnosis and treatment of H pylori infection in primary care physicians (PCPs) and medical students in Croatia. MATERIALS AND METHODS: A study was conducted among PCPs and medical students to evaluate adherence to Maastricht V consensus guidelines. Questionnaire was distributed by e-mail to 2338 PCPs offices in Croatia and to the medical students from the University of Split School of Medicine. Responses were collected electronically from June 22 to August 22, 2020. RESULTS: Two hundred forty-nine PCPs and 169 medical students were included in the study. Bismuth or non-bismuth-based quadruple therapy as first-line treatment for H pylori was the choice of 4.8% of PCPs and 13% of students, while 66.3% PCPs and 79.9% students would choose clarithromycin-based triple therapy. Bismuth-based quadruple therapy was the most preferred second line of treatment for 45.4% of PCPs and 34.9% of students. Only 2.8% PCPs and 7.1% of students would correctly recommend first and second line of treatment for H. pylori infection. A larger proportion of students than PCPs would prefer C13-urea breath test (50.3% vs 6.4%). Only 59.0% PCPs would treat for H pylori in all patients including the asymptomatic ones. Students more frequently recognized the link between H pylori and gastric cancer compared with PCPs (92.9% vs 73.5%). CONCLUSIONS: Primary care physicians and medical students' knowledge of H pylori guidelines are insufficient in Croatia and ask for additional training.
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Infecções por Helicobacter , Helicobacter pylori , Médicos de Atenção Primária , Estudantes de Medicina , Amoxicilina/uso terapêutico , Antibacterianos/uso terapêutico , Bismuto/uso terapêutico , Claritromicina/uso terapêutico , Croácia , Estudos Transversais , Quimioterapia Combinada , Infecções por Helicobacter/tratamento farmacológico , Humanos , Inibidores da Bomba de Prótons/uso terapêuticoRESUMO
BACKGROUND: While it is well known that the cognitive apprenticeship is an effective workplace-based teaching approach for clinical teachers, the effects of faculty development (FD) have not been analyzed from that perspective. The purpose of this study was to investigate self-assessment by clinical teachers of their educational perceptions and behaviors after a FD program using the cognitive apprenticeship model. METHODS: Board-certified pediatricians who participated in a 3-day FD program on practical clinical teaching were asked to complete questionnaires. Fifty participants completed two questionnaires prior to and 3 and 6 months after the FD program: the first was on the participants' general perceptions and behaviors in relation to their own clinical education and the second was a self-assessment using the Maastricht Clinical Teaching Questionnaire (MCTQ) that was developed based on the cognitive apprenticeship model. RESULTS: The general survey demonstrated that 78% of the participants experienced positive changes in their educational perceptions 6 months after FD. Self-assessment using the MCTQ showed that the scores in the categories of "articulation," "exploration," and "safe learning environment" remained significantly improved 6 months after the FD program. CONCLUSIONS: The participants' self-perceived improvement in behaviors was sustainable for 6 months after participation the FD program. The results of the MCTQ show that through their experiences in the FD program, the participants seemingly transformed their clinical teaching to become interactive facilitators, encouraging self-directed learning. Our results also suggest that the MCTQ can be used for self-assessment of clinical teachers and to enhance the effectiveness of the FD program.
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Educação Médica/métodos , Docentes de Medicina/educação , Pediatria/educação , Desenvolvimento de Programas , Adulto , Cognição , Feminino , Humanos , Aprendizagem , Masculino , Pessoa de Meia-Idade , Modelos Educacionais , Avaliação de Programas e Projetos de Saúde , Autoavaliação (Psicologia) , Inquéritos e Questionários , EnsinoRESUMO
Contextual learning pervades our perception and cognition and plays a critical role in adjusting to aversive and stressful events. Our ability to memorise spatial context has been studied extensively with the contextual cueing paradigm, in which participants search for targets among simple distractor cues and show search advantages for distractor configurations that repeat across trials. Mixed evidence suggests that confrontation with adversity can enhance as well as impair the contextual cueing effect. We aimed to investigate this relationship more systematically by devising a contextual cueing task that tests spatial configuration learning within complex visual scenes that were emotionally neutral or negative (Study 1) and was preceded by the Maastricht Acute Stress Test (MAST) or a no-stress control condition (Study 2). We demonstrate a robust contextual cueing effect that was comparable across negative and neutral scenes (Study 1). In Study 2, acute stress disrupted spatial configuration learning irrespective of scene valence and endogenous cortisol reactivity to stress. Together with the emerging evidence in the literature, our findings suggest that spatial configuration learning may be subject to complex regulation as a function of spatial or temporal proximity to a stressor, with potential implications for the development of stress-related psychopathology.
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Emoções , Aprendizagem/fisiologia , Estresse Psicológico/psicologia , Sinais (Psicologia) , Feminino , Humanos , Hidrocortisona/metabolismo , Masculino , Estimulação Luminosa , Saliva/metabolismo , Percepção Espacial , Memória Espacial , Estresse Psicológico/metabolismo , Adulto JovemRESUMO
The current organ shortage in hepatic transplantation leads to increased use of marginal livers. New organ sources are needed, and deceased after circulatory death (DCD) donors present an interesting possibility. However, many unknown remains on these donors and their pathophysiology regarding ischemia reperfusion injury (IRI). Our hypothesis was that DCD combined with abdominal normothermic regional recirculation (ANOR) is not inferior to deceased after brain death (DBD) donors. We performed a mechanistic comparison between livers from DBD and DCD donors in a highly reproducible pig model, closely mimicking donor conditions encountered in the clinic. DCD donors were conditioned by ANOR. We determined that from the start of storage, pro-lesion pathways such as oxidative stress and cell death were induced in both donor types, but to a higher extent in DBD organs. Furthermore, pro-survival pathways, such as resistance to hypoxia and regeneration showed activation levels closer to healthy livers in DCD-ANOR rather than in DBD organs. These data highlight critical differences between DBD and DCD-ANOR livers, with an apparent superiority of DCD in terms of quality. This confirms our hypothesis and further confirms previously demonstrated benefits of ANOR. This encourages the expended use of DCD organs, particularly with ANOR preconditioning.
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Circulação Sanguínea , Morte Encefálica/patologia , Fígado/patologia , Animais , Apoptose , Biomarcadores/metabolismo , Sobrevivência Celular , Modelos Animais de Doenças , Inflamação/patologia , Regeneração Hepática , Estresse Oxidativo , Transdução de Sinais , SuínosRESUMO
Construct: The authors investigated the utility of the Maastricht Clinical Teaching Questionnaire (MCTQ) to assess preceptor use of cognitive apprenticeship teaching methods. Background: The MCTQ is an instrument first studied in medical and veterinary education; it was shown to produce valid and reliable data when evaluating how well preceptors engage in cognitive apprenticeship. Additional validity evidence, however, is needed to determine if the MCTQ is useful and applicable in other healthcare professions, such as pharmacy. Approach: Student pharmacists and pharmacy residents at a large academic medical center completed the MCTQ to evaluate pharmacist preceptors. A confirmatory factor analysis (CFA) was used to determine how consistent the data were with the 5-factor structure of the cognitive apprenticeship teaching methods (e.g., modeling, coaching, articulation, exploration, and safe learning environment). A structural equation model (SEM) was used to evaluate the relationship between the 5 factors. Preceptor and student perceptions were also collected to evaluate the response process and potential consequences of using the instrument. Results: Thirty-eight learners (2nd-year and 4th-year student pharmacists and pharmacy residents) submitted 157 evaluations. The CFA showed appreciable fit with the 5-factor structure of the cognitive apprenticeship framework after 2 modifications (removal of 1 item and moving 1 item to a different factor). The SEM had poor model fit compared to previous studies, and an exploratory analysis suggests that there is a complex relationship between the various teaching methods. Preceptors and students highly agreed that the instrument was valuable for providing feedback. Conclusion: The MCTQ has additional validity evidence that supports it as a viable instrument to assess preceptor engagement in teaching methods consistent with the cognitive apprenticeship framework. Additional research is warranted to explore the relationship between components in the cognitive apprenticeship framework to determine how preceptors can best focus their efforts to improve clinical teaching.
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Estágio Clínico/normas , Docentes de Medicina/normas , Inquéritos e Questionários/estatística & dados numéricos , Ensino/normas , Educação de Graduação em Medicina , Feminino , Humanos , Preceptoria/métodos , Reprodutibilidade dos TestesRESUMO
BACKGROUND: Training health professional students in teamwork is recognized as an important step to create interprofessional collaboration in the clinical workplace. Interprofessional problem-based learning (PBL) is one learning approach that has been proposed to provide students with the opportunity to develop the necessary skills to work collaboratively with various health professionals. This study aimed to explore the extent to which students in interprofessional tutorial groups demonstrate constructive collaboration during group discussions. METHODS: Students (N = 52) from the Medical, Midwifery and Nursing programmes took part in the study. Video-recordings were made of interprofessional PBL discussions (N = 40) in five groups, eight videos per group. Over a period of 4 weeks, participants discussed four scenarios concerned with the reproductive system. The resulting 67 h of video data were analysed qualitatively. To ensure inter-rater reliability, two tutors assessed the students' constructive, collaborative activities using the Maastricht Peer-Activity Rating Scale (MPARS). Finally, to gain an understanding of students' perceptions of their performance and participation in the interprofessional PBL tutorial, we organized three uni-professional focus groups (FGs) at the end of pilot project. RESULTS: The translated MPARS was reliable (Kappa coefficient 0.01-0.20 and p < 0.05). Students were actively involved in the discussion and contributed to a better understanding regardless of their professional background. Group members from different professions complemented one another in solving learning issues. They were open, feeling free to question and argue from the viewpoint of their own profession, and also understood their strengths and limitations. The statistical test of the scores for constructive and collaborative activities indicated a significant difference between students and the various healthcare professionals, p = 0.000, with medical students scoring highest on both activities. Focus groups further clarified some of the observed dynamics. CONCLUSION: Implementing interprofessional PBL could motivate students to engage collaboratively in co-constructing knowledge to solve the patients' problem. Medical students scored highest on constructive and collaborative activities.
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Avaliação Educacional/estatística & dados numéricos , Aprendizagem Baseada em Problemas , Estudantes de Medicina , Atitude do Pessoal de Saúde , Comportamento Cooperativo , Feminino , Grupos Focais , Humanos , Relações Interprofissionais , Masculino , Projetos Piloto , Reprodutibilidade dos Testes , Estudantes de Medicina/psicologia , Adulto JovemRESUMO
Lower prenatal exposure to n-3 PUFA relative to n-6 PUFA has been hypothesised to influence allergy development, but evidence remains largely inconsistent. In the Dutch Maastricht Essential Fatty Acid Birth (MEFAB) (n 293) and Greek RHEA Mother-Child (n 213) cohorts, we investigated whether cord blood phospholipid PUFA concentrations are associated with symptoms of wheeze, asthma, rhinitis and eczema at the age of 6-7 years. Information on allergy-related phenotypes was collected using validated questionnaires. We estimated relative risks (RR) and 95 % CI for associations of PUFA with child outcomes using multivariable generalised linear regression models. In pooled analyses, higher concentration of the n-3 long-chain EPA and DHA and a higher total n-3:n-6 PUFA ratio were associated with lower risk of current wheeze (RR 0·61; 95 % CI 0·45, 0·82 per sd increase in EPA+DHA and 0·54; 95 % CI 0·39, 0·75 per unit increase in the n-3:n-6 ratio) and reduced asthma risk (RR 0·50; 95 % CI 0·31, 0·79 for EPA+DHA and 0·43; 95 % CI 0·26, 0·70 for the n-3:n-6 ratio). No associations were observed for other allergy-related phenotypes. The results were similar across cohorts. In conclusion, higher EPA and DHA concentrations and a higher n-3:n-6 fatty acid ratio at birth were associated with lower risk of child wheeze and asthma. Our findings suggest that dietary interventions resulting in a marked increase in the n-3:n-6 PUFA ratio, and mainly in n-3 long-chain PUFA intake in late gestation, may reduce the risk of asthma symptoms in mid-childhood.
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Ácidos Graxos Essenciais , Ácidos Graxos Insaturados/sangue , Sangue Fetal/química , Hipersensibilidade/sangue , Efeitos Tardios da Exposição Pré-Natal , Adulto , Asma/epidemiologia , Criança , Estudos de Coortes , Eczema/epidemiologia , Ácidos Graxos Ômega-3/sangue , Ácidos Graxos Ômega-6/sangue , Feminino , Seguimentos , Grécia/epidemiologia , Humanos , Recém-Nascido , Masculino , Países Baixos/epidemiologia , Fenótipo , Gravidez , Sons Respiratórios , RiscoRESUMO
In 2015, Annecy Hospital was the first French hospital to perform non-heartbeating organ donation from a Maastricht category III donor (patient awaiting cardiac arrest after withdrawal of treatment). Non-heartbeating organ donation (NHBD), performed in France since 2006, had initially excluded this category, due to ethical questions concerning end of life and treatment withdrawal, as well as technical specificities linked to this procedure. Grenoble University Hospital and Edouard-Herriot Hospital in Lyon then performed the first kidney transplants, with satisfactory outcomes in both recipients. This article presents the details and results of this new experience, challenging both on a deontological and organizational level. Functional outcomes of kidney grafts from NHBD are now well known in the literature and confirm their benefit for patients, with similar results to those from heartbeating donors (HBD). International experiences concerning specifically Maastricht category III NHBD are encouraging and promising.
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Parada Cardíaca , Transplante de Rim , Doadores de Tecidos , Obtenção de Tecidos e Órgãos , Adulto , França , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
OBJECTIVE: To present our experience with the implementation of a donation protocol following controlled cardiac death (Maastricht type III donation). DESIGN: A retrospective descriptive and observational study was made. SETTING: Intensive Care Unit of a third-level university hospital. PATIENTS: Eight patients in an irreversible state, in which withdrawal of all life support had been agreed, were evaluated as potential donors. INTERVENTIONS: Application of the adopted protocol. VARIABLES OF INTEREST: Clinical data of donors, evaluation of a donation protocol following cardiac death, warm ischemia times, and short-term outcome of the recipients. RESULTS: Eight patients were evaluated. In one case donation was not possible because no cardiac arrest developed in the 120 minutes after extubation. The 7 remaining patients were effective kidney donors. Warm ischemia times were less than 23 minutes in all cases. Although 7 of the 14 recipients suffered delayed graft function, all of them achieved good renal function. CONCLUSION: Donation after cardiac death in patients in an overwhelming and irreversible state represents a potential source of donors not previously considered in this country. The prior development of a consensus-based protocol can help increase the number of organs in combination with those obtained after brain death. In our experience, the results of kidney transplants obtained from donors after cardiac death are good, and the success of these types of protocols could be extended to other organs such as the liver and lungs.
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Morte , Obtenção de Tecidos e Órgãos/classificação , Obtenção de Tecidos e Órgãos/normas , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Guias de Prática Clínica como Assunto , Estudos RetrospectivosRESUMO
Laboratory stress tests typically administer stress acutely, ranging from 3 to 15â¯minutes. However, everyday stressors usually last longer than ten minutes (e.g., examination stressors, work stressors, and social stressors. Moreover, in some studies, it may be relevant to induce stress for a longer period to affect certain psychological or physiological parameters. To this end, we developed a novel stress test that intends to induce psychosocial stress for 90â¯minutes. The Leuven Prolonged Acute Stress Test (L-PAST) combines physical (hand immersion in cold water), cognitive (mental arithmetic), and psychosocial (social evaluation and feelings of failure) stress elements of two well-known laboratory stress tests, the Maastricht Acute Stress Test (MAST) and the Montreal Imaging Stress Test (MIST). Fifty healthy women were subjected to both the L-PAST and a sham (control) test in a randomized and counterbalanced manner. The stress response was determined by salivary cortisol measurements and assessment of subjective stress ratings at regular time points during the time preceding the stress period (5â¯min), the stress period (90â¯min), and the recovery period (35â¯min). Cognitive reactivity to failure and subjective pain levels were also assessed at various time points. The childhood trauma questionnaire (CTQ) and the perceived stress scale (PSS) were administered prior to the testing phase. As expected, linear mixed models revealed that the stress response was significantly higher during the L-PAST as indicated by a significant time point by condition interaction effect for both the cortisol response (F(10,450)=12.21, p < 0.0001, ηp2=0.11) and the subjective stress response (F(13,637)=13.98, p < 0.0001, ηp2 = 0.12). Moreover, there was a significant time point by condition interaction effect for cognitive reactivity to failure (F(13,637) = 7.97, p < 0.0001, ηp2 = 0.07) and subjective pain (F(13,637) = 38.52, p < 0.0001, ηp2 = 0.27), indicating that the levels were higher during the L-PAST at most stress induction time points. Lastly, higher CTQ scores were associated with higher subjective pain levels during the L-PAST (F(1,44)=6.05, p = 0.02). Collectively, our results confirm the efficacy of the L-PAST in inducing a prolonged subjective as well as cortisol stress response.
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Hidrocortisona , Saliva , Estresse Psicológico , Humanos , Feminino , Estresse Psicológico/metabolismo , Estresse Psicológico/fisiopatologia , Hidrocortisona/metabolismo , Hidrocortisona/análise , Adulto , Saliva/química , Adulto Jovem , Glucocorticoides/metabolismo , Cognição/fisiologia , Fatores de TempoRESUMO
Background: Dysregulation of the endocannabinoid (eCB) system is implicated in various stress-related neuropsychiatric disorders (SRDs), including anxiety, depression, and post-traumatic stress disorder (PTSD). In this systematic review and meta-analysis, our objectives were to characterize circulating anandamide (AEA) and 2-arachidonoylglycerol (2-AG) concentrations at rest and in response to acute laboratory-based psychosocial stress in individuals with SRDs and without (controls). Our primary aims were to assess the effects of acute psychosocial stress on eCB concentrations in controls (Aim 1), compare baseline (prestress) eCB concentrations between individuals with SRDs and controls (Aim 2), and explore differential eCB responses to acute psychosocial stress in individuals with SRDs compared with controls (Aim 3). Methods: On June 8, 2023, a comprehensive review of the MEDLINE (PubMed) database was conducted to identify original articles meeting inclusion criteria. A total of 1072, 1341, and 400 articles were screened for inclusion in Aims 1, 2, and 3, respectively. Results: Aim 1, comprised of seven studies in controls, revealed that most studies reported stress-related increases in AEA (86%, with 43% reporting statistical significance) and 2-AG (83%, though none were statistically significant except for one study in saliva). However, meta-analyses did not support these patterns (p's>0.05). Aim 2, with 20 studies, revealed that most studies reported higher baseline concentrations of both AEA (63%, with 16% reporting statistical significance) and 2-AG (60%, with 10% reporting statistical significance) in individuals with SRDs compared with controls. Meta-analyses confirmed these findings (p's<0.05). Aim 3, which included three studies, had only one study that reported statistically different stress-related changes in 2-AG (but not AEA) between individuals with PTSD (decrease) and controls (increase), which was supported by the meta-analysis (p<0.001). Meta-analyses showed heterogeneity across studies and aims (I2=14-97%). Conclusion: Despite substantial heterogeneity in study characteristics, samples, and methodologies, consistent patterns emerged, including elevated baseline AEA and 2-AG in individuals with SRDs compared with controls, as well as smaller stress-related increases in 2-AG in individuals with SRDs compared with controls. To consider eCBs as reliable biomarkers and potential intervention targets for SRDs, standardized research approaches are needed to clarify the complex relationships between eCBs, SRDs, and psychosocial stress.
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PURPOSE: Organ shortage greatly limits treatment of patients with end-stage chronic kidney. Maastricht type 2 donation after circulatory death (DCD) has been shown to have similar results in long term outcomes in kidney transplantation, when compared with brain dead donation. Our main goal was to assess Maastricht type 2 DCD and evaluate factors that impact on early graft function. METHODS: A retrospective study was conducted in an ECMO Referral Centre. All patients who received a kidney transplant from Maastricht type 2 DCD were included in study. Early graft function and short term outcomes were assessed. RESULTS: From October 2017 to December 2022, 47 renal grafts were collected from 24 uDCD donors. Median warm ischemia time was 106 min (94-115), cannulation time was 10 min (8; 20) and duration of extracorporeal reperfusion (ANOR) was 180 min (126-214). Regarding early graft function, 25% had immediate graft function, 63.6% had delayed graft function and 11.4% had primary non-function (PNF). There was a correlation between cannulation time (p = 0.006) and ANOR with PNF (p = 0.016). CONCLUSIONS: Cannulation time and ANOR were the main factors that correlated with PNF. Better understanding of underlying mechanisms should be sought in future studies to reduce the incidence of PNF.
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Transplante de Rim , Obtenção de Tecidos e Órgãos , Humanos , Masculino , Estudos Retrospectivos , Feminino , Pessoa de Meia-Idade , Adulto , Função Retardada do Enxerto , Doadores de Tecidos/provisão & distribuição , Falência Renal Crônica/cirurgia , Falência Renal Crônica/terapia , Isquemia QuenteRESUMO
The 2022-2026 Transplantation Plan has been launched by the French government to stimulate the activities of organ harvesting and transplantation, after the failure of the previous one. It has been designed by the Biomedicine Agency in collaboration with learning societies, including the SFNDT, and patient associations. The plan is original in its objectives, its regional organization with its driving by the Regional Health Agencies, the involvement of advanced practice nurses and its funding. The ambition is to transplant every transplantable patient. The increase in the number of kidney transplantations, more of all from a living donor, requires the active participation of all the nephrologists, who are the first in delivering information to the patients and their family on advanced chronic kidney disease treatment and living donation.
Le Plan greffe 2022-2026 a été lancé par le Gouvernement pour stimuler le prélèvement et la transplantation rénale, après l'échec du plan précédent. Il a été élaboré par l'Agence de biomédecine en concertation avec les sociétés savantes, dont la Société française de néphrologie, dialyse et transplantation (SFNDT), et les associations de patients. Il est original, du fait de ses objectifs concernant l'activité de prélèvement et de transplantation exprimés non pas en données chiffrées mais en couloirs de croissance , de son organisation régionale pilotée par les agences régionales de santé, tendant à aligner les niveaux d'activité entre les régions, de l'implication des infirmières de pratique avancée et de son financement. L'ambition est de donner un accès à la greffe à tous les patients transplantables. L'augmentation du nombre de transplantations rénales, en premier lieu à partir d'un donneur vivant, nécessite l'implication de tous les néphrologues, premiers intervenants dans l'information aux patients sur le traitement de l'insuffisance rénale chronique avancée et le don du vivant.
Assuntos
Transplante de Rim , Insuficiência Renal Crônica , Obtenção de Tecidos e Órgãos , Humanos , Coleta de Tecidos e Órgãos , Doadores Vivos , NefrologistasRESUMO
Introduction: COVID-19 pandemic has caused an impact on various sectors of life, including the education sector. During the COVID-19 pandemic, education from various levels could only be carried out online by utilizing various on-line media. In Health professional education context, one of the learning activities that must be shifted in online format was interprofessional education (IPE) program. This study aimed to evaluate students' collaborative knowledge construction to evaluate the effectiveness of online interprofessional case-based learning (CBL) activities. Methods: This interventional study using quantitative and qualitative method involved a total of 476 students; consisted of 204 medical students, 39 midwifery students and 233 nursing students; who took part online interprofessional CBL. All students were divided into 34 mixed profession groups with 14 students each. To evaluate students' collaborative knowledge construction during CBL, data were collected using the Maastricht Peer Activity Rating Scale (MPARS). Qualitative data exploring students' perception regarding online IPE activity and their online CBL process were collected using Focus Group Discussion (FGD). Quantitative data were analysed using statistical tests, and the qualitative data were analysed using thematic analysis. Results: Students' scores for constructive, collaborative, and motivational activities evaluated using MPARS were considered as average to high. However, nursing students scored the lowest compared to the other two fellow professions: medical and midwifery students, on all items of the MPARS. Medical students had the highest MPARS scores. Several themes could be explored during the FGD. Discussion: This study revealed that students could engage in collaborative knowledge construction in interprofessional education implementing online interprofessional CBL. However, students thought that offline collaborative practice will better improve team bonding which is considered as prominent aspect for collaboration. This thought gives idea to the implementation of hybrid online offline learning for IPE.