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1.
Clin Radiol ; 79(4): 312-318, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38302376

RESUMO

AIM: To survey current UK radiology trainee experiences and opinions regarding the quality of paediatric radiology training encountered in their core years, and assess their career ambitions with regards to paediatric radiology. MATERIALS AND METHODS: A 22-question online survey, approved by the BSPR committee, was promoted over 12 months (1 February 2022 to 31 January 2023) across current radiology trainees and fellows via regional radiology training programme directors (TPDs), Junior Radiology Forum (JRF) trainee representatives, at BSPR Junior Forum webinar teaching sessions, and via social media/word of mouth. RESULTS: Eighty-three UK survey responses were received from 17/19 (89%) training schemes. Sixty of the 83 (72%) had taken or were due to take a 2-4 month core paediatric radiology placement partly at tertiary centres (66/83, 80%), with 67/83 (81%) receiving dedicated didactic teaching. Only 26/83 (31%) reported fulfilling core curriculum competencies and 32/83 (39%) reported not receiving enough paediatric radiology training. Almost a quarter (18/83, 22%) reported <2 months of paediatric radiology rotation during core training and 12% (10/83) across six training schemes, reported no dedicated paediatric teaching sessions. Respondents who left negative comments around their experience were more likely to reject paediatric radiology as a future career option (p<0.05). CONCLUSIONS: Only 31% of UK radiology trainees reported having enough paediatric radiology training to achieve core competencies. Standardised training, teaching, and increased on-call support could improve confidence in dealing with emergency cases and encourage interest in paediatric radiology beyond junior years.


Assuntos
Radiologia , Humanos , Criança , Radiologia/educação , Radiologistas , Inquéritos e Questionários , Currículo , Reino Unido
2.
Gen Comp Endocrinol ; 347: 114440, 2024 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-38159870

RESUMO

Thyroid hormones (THs) are essential signalling molecules for the postembryonic development of all vertebrates. THs are necessary for the metamorphosis from tadpole to froglet and exogenous TH administration precociously induces metamorphosis. In American bullfrog (Rana [Lithobates] catesbeiana) tadpoles, the TH-induced metamorphosis observed at a warm temperature (24 °C) is arrested at a cold temperature (4 °C) even in the presence of exogenous THs. However, when TH-exposed tadpoles are shifted from cold to warm temperatures (4 â†’ 24 °C), they undergo TH-dependent metamorphosis at an accelerated rate even when the initial TH signal is no longer present. Thus, they possess a "molecular memory" of TH exposure that establishes the TH-induced response program at the cold temperature and prompts accelerated metamorphosis after a shift to a warmer temperature. The components of the molecular memory that allow the uncoupling of initiation from the execution of the metamorphic program are not understood. To investigate this, we used cultured tadpole back skin (C-Skin) in a repeated measures experiment under 24 °C only, 4 °C only, and 4 â†’ 24 °C temperature shifted regimes and reverse transcription quantitative polymerase chain reaction (RT-qPCR) and RNA-sequencing (RNA-seq) analyses. RNA-seq identified 570, 44, and 890 transcripts, respectively, that were significantly changed by TH treatment. These included transcripts encoding transcription factors and proteins involved in mRNA structure and stability. Notably, transcripts associated with molecular memory do not overlap with those identified previously in cultured tail fin (C-fin) except for TH-induced basic leucine zipper-containing protein (thibz) suggesting that thibz may have a central role in molecular memory that works with tissue-specific factors to establish TH-induced gene expression programs.


Assuntos
Ranidae , Hormônios Tireóideos , Animais , Temperatura , Larva/metabolismo , Hormônios Tireóideos/metabolismo , Ranidae/metabolismo , Rana catesbeiana/metabolismo , Metamorfose Biológica/genética , Tri-Iodotironina/metabolismo
3.
Curr Opin Pediatr ; 33(4): 368-372, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-34074915

RESUMO

PURPOSE OF REVIEW: Although the set point is one of the best understood weight defense mechanisms, how and when a set point is established and what causes its disruption are not well understood. The purpose of this review is to address these gaps in the literature by exploring studies on the establishment of the set point theory and the underlying metabolic processes that support its existence. RECENT FINDINGS: Research suggests that weight loss achieved through restricted energy intake and increased energy expenditure is difficult to maintain and is often followed by greater weight gain over time. It is hypothesized that such weight gain is driven by an individual's set point, a weight range in which the body seeks to remain by adjusting metabolism (e.g. by moderating energy expenditure based on energy intake in times of diet or energy fluctuation). Similar to adults, weight loss in adolescence results in decreased resting metabolic rate (RMR), and that the RMR remains suppressed even with weight restoration. SUMMARY: Recommending weight loss in youth results in metabolic adaptations to restore weight and weight inclusive approaches may be more appropriate to protect their health and wellbeing.


Assuntos
Metabolismo Basal , Ingestão de Energia , Adolescente , Adulto , Composição Corporal , Metabolismo Energético , Humanos , Aumento de Peso , Redução de Peso
4.
Anaesthesia ; 76 Suppl 4: 96-107, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33682093

RESUMO

Chronic pelvic pain represents a major public health problem for women and impacts significantly on their quality of life. Yet it is under-researched and a challenge to manage. Women who suffer from chronic pelvic pain frequently describe their healthcare journey as long, via a variety of specialists and frustrating, with their pain often dismissed. Aetiological factors and associations are best conceptualised using the 'three P's' model of predisposing, precipitating and perpetuating factors. This integrates the numerous biological, psychological and social contributors to the complex, multifactorial nature of chronic pelvic pain. Overall management involves analgesia, hormonal therapies, physiotherapy, psychological approaches and lifestyle advice, which like other chronic pain conditions relies on a multidisciplinary team approach delivered by professionals experienced and trained in managing chronic pelvic pain.


Assuntos
Dor Crônica/patologia , Analgésicos/uso terapêutico , Dor Crônica/terapia , Contraceptivos Hormonais/uso terapêutico , Epigenômica , Feminino , Humanos , Síndrome do Intestino Irritável/patologia , Síndrome do Intestino Irritável/terapia , Estilo de Vida , Modalidades de Fisioterapia , Vulvodinia/patologia , Vulvodinia/terapia
5.
AIDS Behav ; 24(4): 1032-1041, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31004243

RESUMO

We recently reported that a 12-week internet weight loss program produced greater weight losses than education control in overweight/obese people living with HIV (PLWH) (4.4 kg vs 1.0 kg; p < 0.05). This manuscript presents the changes in diet, physical activity, behavioral strategies, and cardio-metabolic parameters. Participants (N = 40; 21 males, 19 females) were randomly assigned to an internet behavioral weight loss (WT LOSS) program or internet education control (CONTROL) and assessed before and after the 12-week program. Compared to CONTROL, the WT LOSS arm reported greater use of behavioral strategies, decreases in intake (- 681 kcal/day; p = 0.002), modest, non-significant, increases in daily steps (+ 1079 steps/day) and improvements on the Healthy Eating Index. There were no significant effects on cardio-metabolic parameters. The study suggests that a behavioral weight loss program increases the use of behavioral strategies and modestly improves dietary intake and physical activity in PLWH. Further studies with larger sample sizes and longer follow-up are needed.Clinical Trials Registration: NCT02421406.


Assuntos
Terapia Comportamental , Exercício Físico , Redução de Peso , Programas de Redução de Peso/estatística & dados numéricos , Adulto , Dieta , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade , Avaliação de Processos e Resultados em Cuidados de Saúde , Sobrepeso
6.
Epidemiol Infect ; 148: e285, 2020 11 24.
Artigo em Inglês | MEDLINE | ID: mdl-33228824

RESUMO

Understanding risk factors for death from Covid-19 is key to providing good quality clinical care. We assessed the presenting characteristics of the 'first wave' of patients with Covid-19 at Royal Oldham Hospital, UK and undertook logistic regression modelling to investigate factors associated with death. Of 470 patients admitted, 169 (36%) died. The median age was 71 years (interquartile range 57-82), and 255 (54.3%) were men. The most common comorbidities were hypertension (n = 218, 46.4%), diabetes (n = 143, 30.4%) and chronic neurological disease (n = 123, 26.1%). The most frequent complications were acute kidney injury (AKI) (n = 157, 33.4%) and myocardial injury (n = 21, 4.5%). Forty-three (9.1%) patients required intubation and ventilation, and 39 (8.3%) received non-invasive ventilation. Independent risk factors for death were increasing age (odds ratio (OR) per 10 year increase above 40 years 1.87, 95% confidence interval (CI) 1.57-2.27), hypertension (OR 1.72, 95% CI 1.10-2.70), cancer (OR 2.20, 95% CI 1.27-3.81), platelets <150 × 103/µl (OR 1.93, 95% CI 1.13-3.30), C-reactive protein ≥100 µg/ml (OR 1.68, 95% CI 1.05-2.68), >50% chest radiograph infiltrates (OR 2.09, 95% CI 1.16-3.77) and AKI (OR 2.60, 95% CI 1.64-4.13). There was no independent association between death and gender, ethnicity, deprivation level, fever, SpO2/FiO2, lymphopoenia or other comorbidities. These findings will inform clinical and shared decision making, including use of respiratory support and therapeutic agents.


Assuntos
COVID-19/epidemiologia , COVID-19/mortalidade , Comorbidade , Mortalidade Hospitalar , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , COVID-19/complicações , COVID-19/terapia , Estudos de Coortes , Inglaterra/epidemiologia , Feminino , Hospitais Gerais , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , Estudos Retrospectivos , Fatores de Risco , SARS-CoV-2
7.
Ultrasound Obstet Gynecol ; 56(3): 422-430, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-31671482

RESUMO

OBJECTIVE: To describe our clinical experience across the entire range of fetal-fraction (FF) measurements of a non-invasive prenatal screen (NIPS) that uses whole- genome sequencing (WGS). METHODS: We analyzed retrospectively results from 58 105 singleton pregnancies that underwent NIPS on a customized WGS platform during an 8-month period and assessed clinical test performance for trisomy 21, trisomy 18 and trisomy 13. Pregnancy outcomes were sought for all screen-positive patients and for 18% of screen-negative patients. As differences in outcome-collection response rates could artificially impact test-performance calculations, we computed inferred sensitivity, specificity, positive predictive values (PPV) and negative predictive values adjusted for ascertainment bias. RESULTS: The screening test yielded a result for 99.9% (n = 58 048) of patients, meaning that approximately 1 in 1000 patients received a test failure (i.e. test failure rate = 0.1%). Of pregnancies with a test result, 572 (1%) screened positive for one of the common aneuploidies (362 for trisomy 21, 142 for trisomy 18 and 68 for trisomy 13). Informative outcomes were received for 237 (41.4%) patients with a screen-positive result and 3258 (5.7%) of those with a screen-negative result. In the full cohort, inferred sensitivities for trisomy 21, trisomy 18 and trisomy 13 were 99.7%, 96.8% and 94.3%, respectively, and PPVs were 93.1%, 85.2% and 48.4%, respectively. If a FF threshold of 4% had been employed to guard against false negatives, calculated sensitivities for the three aneuploidies would not have changed significantly, yet, importantly, the overall test-failure rate would have increased to 6.6% (n = 3829), impacting 1 in 15 women. CONCLUSIONS: Our clinical experience demonstrates that a customized WGS-based NIPS without a FF threshold achieves high accuracy while maintaining a low test-failure rate of 0.1%. As such, alternative strategies to ensure high accuracy of detection of common aneuploidies in samples with low FF (such as redraw after test failure, redrawing at a later gestational age, risk scoring based on FF) are not necessary for this screening approach. © 2019 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Ácidos Nucleicos Livres/sangue , Diagnóstico Pré-Natal , Trissomia/diagnóstico , Adulto , Biomarcadores/sangue , Reações Falso-Negativas , Reações Falso-Positivas , Feminino , Humanos , Testes para Triagem do Soro Materno , Gravidez , Resultado da Gravidez , Estudos Retrospectivos , Sensibilidade e Especificidade
8.
Public Health Nutr ; 23(10): 1735-1744, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32066512

RESUMO

OBJECTIVE: To determine how children interpret terms related to food processing; whether their categorisation of foods according to processing level is consistent with those used in research; and whether they associate the degree of processing with healthfulness. DESIGN: Qualitative data were collected from ten focus groups. Focus groups were audio-recorded, transcribed verbatim, and thematic analysis was conducted. SETTING: Four elementary and afterschool programmes in a large, urban school district in the USA that served predominantly low-income, racial/ethnic minority students. PARTICIPANTS: Children, 9-12 years old, in the fourth-sixth grades (n 53). RESULTS: The sample was 40 % male, 47 % Hispanic with a mean age of 10·4 ± 1·1 years. Children's understanding of unprocessed foods was well aligned with research classifications, while concordance of highly processed foods with research categorisations varied. Five primary themes regarding the way children categorised foods according to their processing level emerged: type and amount of added ingredients; preparation method; packaging and storage; change in physical state or sensory experience; and growing method. Most children associated processing level with healthfulness, describing unprocessed foods as healthier. The most common reason provided for the unhealthfulness of processed foods was added ingredients, including 'chemicals' and 'sugar'. CONCLUSIONS: The current study demonstrated that children have a working knowledge of processing that could be leveraged to encourage healthier eating patterns; however, their understanding is not always consistent with the classification systems used in research. The vocabulary used by researchers and consumers to talk about processing must be reconciled to translate findings into actionable messages.


Assuntos
Dieta Saudável/psicologia , Manipulação de Alimentos , Preferências Alimentares/psicologia , Estudantes/psicologia , Criança , Comportamento de Escolha , Dieta Saudável/etnologia , Fast Foods , Feminino , Grupos Focais , Preferências Alimentares/etnologia , Alimentos em Conserva , Hispânico ou Latino/psicologia , Humanos , Conhecimento , Masculino , Grupos Minoritários/psicologia , Pobreza/etnologia , Pobreza/psicologia , Pesquisa Qualitativa , População Urbana , Vocabulário
9.
BMC Public Health ; 20(1): 1732, 2020 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-33203385

RESUMO

BACKGROUND: Children from racial and ethnic minority groups, low-income households, and those with overweight or obesity gain more weight during the summer than the school year. Summer day camps, which offer routine opportunities for physical activity and regular meal and snack times, have potential to mitigate excess weight gain. This randomized controlled trial was done to determine the feasibility and preliminary effectiveness of summer camp in preventing excess summer weight gain among youth from low-income households. METHODS: Children, ages 6 to 12 years, were randomized to attend 8-weeks of summer day camp (CAMP) or to experience an unstructured summer as usual (SAU) in 2017-2018. Primary feasibility outcomes included retention, engagement and completion of midsummer measures. Secondary outcomes included changes in BMIz, engagement in moderate to vigorous physical activity (MVPA) and sedentary behavior, and diet quality and energy intake from the school year to summer. Multivariable linear mixed models were used to assess group differences. RESULTS: Ninety-four participants were randomized to CAMP (n = 46) or SAU (n = 48), of whom 93.0 and 91.6% completed end of school and end of summer assessments, respectively. While CAMP participants attended only 50% of camp days offered, on average, they lost - 0.03 BMIz units while those in SAU gained 0.07 BMIz units over the summer (b = 0.10; p = .02). Group differences in change in energy intake from the school year to summer were borderline significant, as energy intake remained relatively unchanged in CAMP participants but increased among participants in SAU (p = 0.07). CONCLUSIONS: Randomizing children to attend summer day camp or experience an unstructured summer as usual was effective in this low-income sample. Our findings support the potential for summer camps in mitigating excess summer weight gain. A larger randomized trial is needed explore efficacy, cost-effectiveness and longer-term effects of attending summer camp on weight and weight-related behaviors. TRIAL REGISTRATION: ClinicalTrials.gov Registration: NCT04085965 (09/2019, retrospective registration).


Assuntos
Etnicidade , Grupos Minoritários , Adolescente , Criança , Humanos , Pobreza , Estudos Retrospectivos , Aumento de Peso
10.
Appetite ; 151: 104696, 2020 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-32251765

RESUMO

Excess consumption of highly processed foods may be associated with lower diet quality and obesity prevalence, but few studies have examined these relationships in children from low-income households. Therefore, the objective of this study was to evaluate the relationship between food consumption by processing category, diet quality as measured by the Healthy Eating Index-2015 (HEI-2015) and body mass index (BMI) in a sample of low-income children. Data from a study assessing the impact of Summer Food Service participation on diet quality and weight status (N = 131) was used to conduct a cross-sectional analysis of children aged six to twelve years from low-income communities in the Northeastern U.S. Total HEI-2015 score and percentage of calories consumed by processing level were computed per day from three 24-h diet recalls. Multivariable linear regression was used to assess the relationship between percentage of calories from foods by processing category (unprocessed and minimally, basic, moderately and highly processed), HEI-2015 and BMI-z score. The final sample was 58% male and 33.8% obese. On average, children consumed 39.8 ± 17.2% of calories from highly processed foods. A 10% increase in calories consumed from highly processed foods was associated with a 2.0 point decrease in total HEI-2015 score [95% CI (-2.7, -1.2)], and a 10% increase in calories from minimally processed foods was associated with a 3.0 increase in HEI-2015 score [95% CI (2.1, 3.8)]. Relationships between processing level and BMI-z score were not significant. Among this sample of low-income children, greater intake of highly processed foods was associated with lower dietary quality, but not weight status. Future research should explore prospective associations between food consumption by processing category and weight status in children.


Assuntos
Dieta , Fast Foods , Criança , Estudos Transversais , Ingestão de Energia , Feminino , Humanos , Masculino , Estudos Prospectivos , Instituições Acadêmicas
11.
Appetite ; 146: 104521, 2020 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-31751632

RESUMO

Although poor sleep has been found to adversely impact eating and weight regulation in youth, past research is limited by retrospective reporting and/or non-naturalistic designs. We investigated the feasibility of combining three momentary, ecologically valid approaches to assessing sleep and eating behavior, and associations between these constructs, among youth (aged 8-14y) with overweight/obesity (n = 40). Participants completed 14 overlapping days of actigraphy assessment and smartphone-based ecological momentary assessment (EMA) of eating behavior, of which 3 days also included computerized, self-guided 24-h dietary recall. Feasibility of completing measures concurrently was evaluated by generating frequencies of compliance. Associations between sleep indices and next-day eating behavior were examined via generalized estimating equations. Of 29 participants who provided EMA and 24-h recall data that aligned with previous night actigraphy data, both EMA and sleep data were available on an average of 8.6 out of 14 possible days, and both 24-h recall and sleep data on an average of 2.7 out of 3 possible days. Each additional hour of sleep was associated with consuming fewer calories from solid fats, alcohol, and added sugars (b = 0.70; p = .04). Combining naturalistic, momentary assessments of sleep and eating behavior appears to be acceptable in youth. Larger experimental studies are needed to further understand associations between sleep parameters and eating behavior.


Assuntos
Avaliação Momentânea Ecológica/estatística & dados numéricos , Comportamento Alimentar/fisiologia , Obesidade Infantil/fisiopatologia , Sono/fisiologia , Fatores de Tempo , Actigrafia , Adolescente , Índice de Massa Corporal , Criança , Dieta/estatística & dados numéricos , Inquéritos sobre Dietas , Ingestão de Energia , Estudos de Viabilidade , Feminino , Humanos , Masculino , Projetos Piloto , Projetos de Pesquisa
12.
Int J Behav Nutr Phys Act ; 16(1): 14, 2019 01 31.
Artigo em Inglês | MEDLINE | ID: mdl-30704533

RESUMO

BACKGROUND: Young adults (YA) are at high-risk for unhealthy dietary behaviors and weight gain. The Study of Novel Approaches to Weight Gain Prevention (SNAP) Trial demonstrated that two self-regulation approaches were effective in reducing weight gain over 2 years compared with control. The goal of this analysis was to examine effects of intervention on dietary outcomes and the association of diet changes with weight change. METHODS: Participants were 599 YA, age 18-35 years, BMI 21.0-30.0 kg/m2 (27.4 ± 4.4 years; 25.4 ± 2.6 kg/m2; 22% men; 73% non-Hispanic White), who were recruited in Providence, RI and Chapel Hill, NC and randomized to self-regulation with Small Changes (SC), self-regulation with Large Changes (LC) or Control (C). SC and LC emphasized frequent self-weighing to cue behavior changes (small daily changes vs. periodic large changes) and targeted high-risk dietary behaviors. Diet and weight were assessed at baseline, 4 months and 2 years. RESULTS: LC and SC had greater decreases in energy intake than C at 4 months but not 2 years. LC had the greatest changes in percent calories from fat at 4 months, but differences were attenuated at 2 years. No differences in diet quality were observed. Across conditions, increased total energy consumption, fast food, meals away from home, and binge drinking, and decreased dietary quality and breakfast consumption were all associated with weight gain at 2 years. CONCLUSIONS: This study suggests the need to strengthen interventions to produce longer term changes in dietary intake and helps to identify specific behaviors associated with weight gain over time in young adults. TRIAL REGISTRATION: Clinicaltrials.gov # NCT01183689 , registered August 18, 2010.


Assuntos
Terapia Comportamental , Dieta , Comportamento Alimentar , Comportamentos Relacionados com a Saúde , Obesidade/prevenção & controle , Aumento de Peso , Adolescente , Adulto , Consumo de Bebidas Alcoólicas , Peso Corporal , Ingestão de Energia , Fast Foods , Feminino , Humanos , Masculino , Refeições , North Carolina , Rhode Island , Redução de Peso , Adulto Jovem
13.
J Hum Nutr Diet ; 32(6): 745-753, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31411771

RESUMO

BACKGROUND: The prevalence of weight loss attempts has increased worldwide, although the extent to which sustained weight loss is achieved is unknown. There is insufficient research into weight loss maintenance (WLM) in individuals with overweight or obesity who have recently lost clinically significant amounts of weight (≥5%), particularly in the European general population. The present study aimed to determine the prevalence and retrospective predictors of WLM in population-based samples of European adults with overweight or obesity who had made a recently completed weight loss attempt. METHODS: Participants (N = 2000) in UK, Denmark and Portugal completed an online survey about loss and regain in their most recent completed weight loss attempt, features of their attempt (duration, self-weighing, lapses, strategies), as well as loss of control and binge eating. Multiple regression analysis was used to determine factors retrospectively associated with WLM in those who achieved clinically significant weight loss (n = 1272). RESULTS: Mean (SD) self-reported weight loss was 9% (8%) and mean (SD) regain was 96.3% (9%) of participants' start weight. Twenty-three percent of the total sample had maintained weight loss of ≥5% for at least 1 month. Controlling for weight loss and time since attempt, predictors of better WLM were avoidance of a temporary lapse, infrequent/absent loss of control and binge eating, and use of a greater number of dietary strategies for WLM (r2  = 0.338, P < 0.001). PRINCIPAL CONCLUSIONS: Factors associated with recent successful WLM indicate the importance of the continued use of dietary and other strategies for WLM, particularly in the face of a lapse, as well as the need to manage dysfunctional eating behaviours.


Assuntos
Obesidade/terapia , Sobrepeso/terapia , Redução de Peso , Cirurgia Bariátrica , Índice de Massa Corporal , Dinamarca , Dietoterapia , Exercício Físico , Comportamento Alimentar , Feminino , Humanos , Masculino , Portugal , Estudos Retrospectivos , Inquéritos e Questionários , Resultado do Tratamento , Reino Unido , Aumento de Peso
14.
Anaesthesia ; 73(9): 1141-1150, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29989144

RESUMO

The use of cell salvage is recommended when it can be expected to reduce the likelihood of allogeneic (donor) red cell transfusion and/or severe postoperative anaemia. We support and encourage a continued increase in the appropriate use of peri-operative cell salvage and we recommend that it should be available for immediate use 24 h a day in any hospital undertaking surgery where blood loss is a recognised potential complication (other than minor/day case procedures).


Assuntos
Transfusão de Sangue Autóloga/normas , Recuperação de Sangue Operatório/normas , Anemia/prevenção & controle , Perda Sanguínea Cirúrgica , Transfusão de Sangue Autóloga/métodos , Humanos , Cuidados Intraoperatórios/métodos , Cuidados Intraoperatórios/normas , Recuperação de Sangue Operatório/educação , Recuperação de Sangue Operatório/métodos , Equipe de Assistência ao Paciente/organização & administração , Recursos Humanos em Hospital/educação , Complicações Pós-Operatórias/prevenção & controle , Reino Unido
15.
J Exp Child Psychol ; 173: 205-221, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29734051

RESUMO

We investigated children's (n = 120; 3- to 11-year-olds) and adults' (n = 18) reasoning about life-cycle changes in biological organisms by examining their endorsements of four different patterns of life-span changes. Participants were presented with two separate tasks: (a) judging possible adult versions of a juvenile animal and (b) judging possible juvenile versions of an adult animal. The stimuli enabled us to examine the endorsement of four different patterns of change: identical growth, natural growth, dramatic change, and speciation. The results suggest that endorsement of the different patterns is influenced by age and familiarity. Young children and individuals confronted with unfamiliar organisms often endorsed an identical growth that emphasizes the stability of features over the life span and between parents and offspring. The results are interpreted as supporting the idea that cognitive constraints influence individuals' reasoning about biological change and that the influence of these constraints is most notable when individuals are young or are presented with unfamiliar biological organisms.


Assuntos
Compreensão/fisiologia , Julgamento/fisiologia , Resolução de Problemas/fisiologia , Criança , Pré-Escolar , Cognição/fisiologia , Feminino , Humanos , Masculino , Adulto Jovem
16.
Headache ; 57(3): 417-427, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28028805

RESUMO

BACKGROUND/OBJECTIVE: Previous studies suggest that migraine might be associated with female sexual dysfunction (FSD), although this association may be complicated by overweight/obesity. To disentangle relationships of migraine and obesity with FSD, we examined: (1) FSD rates in women who had migraine and obesity with a matched sample of women with obesity who were free of migraine and (2) associations between indices of migraine severity and FSD in a larger sample of participants with migraine and overweight/obesity, controlling for important confounders. METHODS: Women with migraine and obesity seeking behavioral weight loss treatment to decrease headaches (n = 37) and nonmigraine controls (n = 37) with obesity seeking weight loss via bariatric surgery were matched on age (±5 years), body mass index (BMI; ±3 kg/m2 ), and reported sexual activity during the past month. Both groups completed the Female Sexual Function Index (FSFI), with a validated FSFI-total cutoff score used to define FSD. In participants with migraine and overweight/obesity (n = 105), separate logistic regression models evaluated associations of migraine attack frequency, intensity, and duration with odds of having FSD, controlling for age, BMI, depression, and anxiety. RESULTS: On average, participants and matched controls had severe obesity (BMI = 42.4 ± 3.8 kg/m2 ; range = 35-49.9) and were 37.3 ± 7.2 years of age (range = 22-50). FSD rate did not differ between migraine participants and controls (56.8% vs. 54.1%, P = .82). In the larger sample of participants with migraine and overweight/obesity (38.2 ± 7.8 years of age; BMI = 34.8 ± 6.4 [range = 25-50 kg/m2 ]; 8.0 ± 4.3 migraine days/month, maximum pain intensity = 5.9 ± 1.4 on 0-10 scale; average attack duration = 18.3 ± 9.7 hours), FSD was not associated with attack frequency (P = .31), pain intensity (P = .92), or attack duration (P = .35) but was associated with more severe anxiety symptoms (Ps < .017). CONCLUSIONS: Rates of sexual dysfunction did not differ in severely obese women with and without migraine. Moreover, indices of migraine severity were not associated with increased risk of FSD in women with overweight/obesity. Replication of present findings in wider populations of women with migraine and of both normal-weight and overweight/obese status are warranted.


Assuntos
Doenças dos Genitais Femininos/etiologia , Transtornos de Enxaqueca/complicações , Transtornos do Humor/etiologia , Obesidade/complicações , Adulto , Índice de Massa Corporal , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Pessoa de Meia-Idade , Transtornos do Humor/diagnóstico , Medição da Dor , Escalas de Graduação Psiquiátrica , Índice de Gravidade de Doença , Adulto Jovem
17.
Phys Chem Chem Phys ; 19(45): 30578-30589, 2017 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-29115318

RESUMO

In this study, we have combined ultra-high vacuum (UHV) experiments and density functional theory (DFT) calculations to investigate ethanol (EtOH) dehydrogenation on Pd-Au model catalysts. Using EtOH reactive molecular beam scattering (RMBS), EtOH temperature-programmed desorption (TPD), and DFT calculations, we show how different Pd ensemble sizes on Au(111) can affect the mechanism for EtOH dehydrogenation and H2 production. The Au(111) surface with an initial coverage of 2 monolayers of Pd (2 ML Pd-Au) had the highest H2 yield. However, the 1 ML Pd-Au catalyst showed the highest selectivity and stability, yielding appreciable amounts of only H2 and acetaldehyde. Arrhenius plots of H2 production confirm that the mechanisms for EtOH dehydrogenation differed between 1 and 2 ML Pd-Au, supporting the perceived difference in selectivity between the two surfaces. DFT calculations support this difference in mechanism, showing a dependence of the initial dehydrogenation selectivity of EtOH on the size of Pd ensemble. DFT binding energies and EtOH TPD confirm that EtOH has increasing surface affinity with increasing Pd ensemble size and Pd coverage, indicating that surfaces with more Pd are more likely to induce an EtOH reaction instead of desorb. Our theoretical results show that the synergistic influence of atomic ensemble and electronic effects on Pd/Au(111) can lead to different H2 association energies and EtOH dehydrogenation capacities at different Pd ensembles. These results provide mechanistic insights into ethanol's dehydrogenation interactions with different sites on the Pd-Au surface and can potentially aid in bimetallic catalyst design for applications such as fuel cells.

18.
Public Health ; 153: 25-35, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28822850

RESUMO

OBJECTIVES: Given the increased risk of foodborne infection to cancer patients receiving chemotherapy treatment, and the risk of listeriosis reportedly five-times greater to this immunocompromised patient group, there is a need to ensure the implementation of domestic food safety practices among chemotherapy patients and their family caregivers. However, information regarding the adequacy of resources to inform and enable patients to implement domestic food safety practices to reduce the risk of foodborne infection is limited. Consequently, this study aimed to evaluate the provision of food safety information available to UK chemotherapy patients. STUDY DESIGN: In-depth semi-structured interviews and content analysis of online patient information resources. METHODS: Interviews with patients and family caregivers (n = 15) were conducted to explore food-related experiences during chemotherapy treatment. Online food-related information resources for chemotherapy patients (n = 45) were obtained from 35 of 154 National Health Service chemotherapy providers in England, Scotland, and Wales, the Department of Health (DoH) and three of 184 identified UK cancer charities. Identified food-related information resources were reviewed using a content-analysis approach to assess the inclusion of food safety information for chemotherapy patients. RESULTS: In-depth interviews established that many patients indicated awareness of immunosuppression during treatment. Although patients reported practicing caution to reduce the risk of communicable diseases by avoiding crowded spaces/public transport, food safety was reported to be of minimal concern during treatment and the risk of foodborne infection was often underestimated. The review of online food-related patient information resources established that many resources failed to highlight the increased risk of foodborne infection and emphasize the importance of food safety for patients during chemotherapy treatment. Considerable information gaps exist, particularly in relation to listeriosis prevention practices. Cumulatively, information was inconsistent, insufficient, and varied between resources. CONCLUSION: The study has identified the need for an effective, standardized food safety resource specifically targeting chemotherapy patients and family caregivers. Such intervention is essential to assist efforts in reducing the risks associated with foodborne infection among chemotherapy patients.


Assuntos
Inocuidade dos Alimentos , Doenças Transmitidas por Alimentos/prevenção & controle , Neoplasias/tratamento farmacológico , Educação de Pacientes como Assunto , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Hospedeiro Imunocomprometido , Listeriose/prevenção & controle , Risco , Reino Unido
19.
Cephalalgia ; 36(13): 1228-1237, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26742779

RESUMO

Background While pain intensity during migraine headache attacks is known to be a determinant of interference with daily activities, no study has evaluated: (a) the pain intensity-interference association in real-time on a per-headache basis, (b) multiple interference domains, and (c) factors that modify the association. Methods Participants were 116 women with overweight/obesity and migraine seeking behavioral treatment to lose weight and decrease headaches in the Women's Health and Migraine trial. Ecological momentary assessment, via smartphone-based 28-day headache diary, and linear mixed-effects models were used to study associations between pain intensity and total- and domain-specific interference scores using the Brief Pain Inventory. Multiple factors (e.g. pain catastrophizing (PC) and headache management self-efficacy (HMSE)) were evaluated either as independent predictors or moderators of the pain intensity-interference relationship. Results Pain intensity predicted degree of pain interference across all domains either as a main effect (coeff = 0.61-0.78, p < 0.001) or interaction with PC, allodynia, and HMSE ( p < 0.05). Older age and greater allodynia consistently predicted higher interference, regardless of pain intensity (coeff = 0.04-0.19, p < 0.05). Conclusions Pain intensity is a consistent predictor of pain interference on migraine headache days. Allodynia, PC, and HMSE moderated the pain intensity-interference relationship, and may be promising targets for interventions to reduce pain interference.


Assuntos
Catastrofização/epidemiologia , Dor Crônica/epidemiologia , Avaliação Momentânea Ecológica , Cefaleia/epidemiologia , Transtornos de Enxaqueca/epidemiologia , Obesidade/epidemiologia , Saúde da Mulher/estatística & dados numéricos , Adolescente , Adulto , Catastrofização/diagnóstico , Catastrofização/psicologia , Dor Crônica/diagnóstico , Dor Crônica/psicologia , Comorbidade , Feminino , Cefaleia/diagnóstico , Cefaleia/psicologia , Humanos , Pessoa de Meia-Idade , Transtornos de Enxaqueca/diagnóstico , Transtornos de Enxaqueca/psicologia , Obesidade/diagnóstico , Obesidade/psicologia , Medição da Dor/psicologia , Medição da Dor/estatística & dados numéricos , Prevalência , Rhode Island/epidemiologia , Medição de Risco , Índice de Gravidade de Doença , Adulto Jovem
20.
Anaesthesia ; 71(3): 298-305, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26712088

RESUMO

This randomised controlled trial investigated the efficacy of Epi-Fix(™) , LockIt Plus(®) and Tegaderm(™) as fixation devices for intrapartum epidural catheters. One hundred and sixty-five women requesting intrapartum epidural analgesia were randomised to receive different fixation devices to secure their epidural catheter. The amount of epidural catheter migration (measured to the nearest 0.5 cm) was analysed for three devices: Epi-Fix (n = 55); LockIt Plus (n = 54); and Tegaderm dressing (n = 51). Median (IQR [range]) catheter migration for Epi-Fix was 1.0 cm (0.0-2.0 [-2.0 to 9.5]), vs 0.0 cm (0.0-0.5 [-1.0 to 5.5]) for LockIt Plus and 0.5 cm (0.0-1.8 [-1.5 to 8.0]) for Tegaderm (p = 0.003). Thirty-eight (69.1%) epidural catheters secured with Epi-Fix migrated < 2.0 cm, compared with 49 (90.7%) with LockIt Plus and 40 (78.4%) with Tegaderm. Sixteen epidural catheters required resiting due to failure of analgesia of which 12 (75.0%) occurred in patients with epidural catheters that had migrated ≥ 2.0 cm. This study shows that intrapartum epidural catheters secured with the LockIt Plus device exhibit less catheter migration compared with fixation with Epi-Fix and Tegaderm.


Assuntos
Analgesia Epidural/instrumentação , Analgesia Obstétrica/instrumentação , Espaço Epidural , Desenho de Equipamento , Feminino , Humanos , Gravidez , Estudos Prospectivos , Resultado do Tratamento , Reino Unido
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