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1.
Neuropediatrics ; 53(5): 344-350, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35453165

RESUMO

Botulinum toxin type A (BoNT-A) has shown to be a safe and effective treatment for children with chronic migraines. Our study was to assess the efficacy of the Onabotulinum toxin type A at different intervals after initiation of therapy. We conducted a retrospective and prospective analysis of 34 patients at a children's hospital where children received four rounds of the BoNT-A therapy for the treatment of chronic migraine. Among the 34 patients, 25 patients (age range: 13-21 years), who responded to the BoNT-A therapy, were included in the analysis. Patients received standard 31 injection, 155 unit's protocol. Patients were assessed every 3 months after their initial injection. Reasons for discontinuation of therapy were analyzed. After the first two BoNT-A sessions, significant improvement was observed with a decrease in headache frequency and intensity (p < 0.001). There was further reduction in headache frequency and intensity with the fourth round of BoNT-A therapy, with comparative analysis between the second and fourth round showing a p-value of <0.001. In terms of reduction of emergency room visits and hospitalization, a significant improvement was seen after the third round of BoNT-A therapy (p < 0.01). A significant decrease in the number of abortive and preventive medications was seen after the second round of BoNT-A therapy (p < 0.001). The efficacy of BoNT-A treatment in decreasing headache frequency, intensity, and the number of abortive and preventive medications can be assessed effectively after two treatment sessions. This trend continued to be observed with additional third and fourth sessions.


Assuntos
Toxinas Botulínicas Tipo A , Transtornos de Enxaqueca , Fármacos Neuromusculares , Adolescente , Adulto , Toxinas Botulínicas Tipo A/uso terapêutico , Criança , Cefaleia , Humanos , Transtornos de Enxaqueca/tratamento farmacológico , Transtornos de Enxaqueca/prevenção & controle , Fármacos Neuromusculares/uso terapêutico , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
2.
Headache ; 61(7): 1086-1091, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34325484

RESUMO

OBJECTIVE: To evaluate the efficacy of a pediatric headache infusion center (HIC) in alleviating the symptoms and preventing future visits to the emergency department (ED). BACKGROUND: Headache is a common reason for visits to the pediatric ED. ED visits are associated with inordinate costs of care and are conceived by parents to be avoidable if adequate alternatives are available. An infusion center for acute treatment of intractable headache in children with chronic migraine may be an effective alternative to an ED visit. METHODS: This was a retrospective analysis of data from a single-center cohort of patients with a known history of chronic migraine, presenting to Dayton Children's HIC with an acute migraine from June 1, 2017 to June 1, 2020. Patients were treated according to established protocols divided into two pathways. Patient demographics, clinical characteristics, pre- and postinfusion pain scores, ED visits and inpatient admissions within 2 weeks of HIC visit, and ED visits 1 year prior and 1 year after the HIC visit were noted. RESULTS: A total of 297 HIC visits were analyzed from 201 patients. The HIC was effective in controlling symptoms with a significant reduction in pain score (median [interquartile range; IQR] 7.0 [2.0] preinfusion vs. 1.0 [2.0] postinfusion, p < 0.001). Only 25/297 (8.4%) patients came to the ED within 2 weeks of the HIC visit, and an even smaller number of patients (20/297, 6.7%) were admitted as inpatients within 2 weeks of the HIC visit. The number of ED visits was significantly reduced in the year after the HIC visit compared with the year prior (median [IQR] 1.0 [2.0] before vs. 0.0 [1.0] after, p < 0.001). CONCLUSION: A pediatric HIC is effective in alleviating the symptoms and preventing ED visits. These centers should be considered as standard of care at children's hospitals.


Assuntos
Analgésicos/administração & dosagem , Serviço Hospitalar de Emergência/estatística & dados numéricos , Custos de Cuidados de Saúde/estatística & dados numéricos , Hospitais Pediátricos/estatística & dados numéricos , Transtornos de Enxaqueca/tratamento farmacológico , Avaliação de Processos e Resultados em Cuidados de Saúde , Ambulatório Hospitalar/estatística & dados numéricos , Admissão do Paciente/estatística & dados numéricos , Adolescente , Criança , Doença Crônica , Serviço Hospitalar de Emergência/economia , Feminino , Hospitais Pediátricos/economia , Humanos , Infusões Intravenosas , Masculino , Transtornos de Enxaqueca/economia , Ambulatório Hospitalar/economia , Medição da Dor , Admissão do Paciente/economia , Estudos Retrospectivos
3.
J Pediatr Gastroenterol Nutr ; 73(5): 647-653, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34338235

RESUMO

OBJECTIVES: Short bowel syndrome (SBS) is a complex and rare condition (incidence 1200/100,000 live births) that requires a multidisciplinary team approach to management. In January 2019, the first European Reference Network on Rare and Inherited Congenital Anomalies (ERNICA) Intestinal Failure (IF) workshop was held. Several questions about the strategies used in managing IF associated with SBS were devised. The aim of our study was to collect data on the enteral feeding strategies adopted by the ERNICA centres. METHODS: A questionnaire (36 questions) about strategies used to introduce enteral nutrition post-operatively and start complementary food/solids in infants with SBS associated IF was developed and sent to 24 centres in 15 countries that participated in the ERNICA-IF workshop. The answers were collated and compared with the literature. RESULTS: There was a 100% response rate. In infants, enteral nutrition was introduced as soon as possible, ideally within 24-48 hours post-small intestinal surgical resection. In 10 of 24 centres, bolus feeding was used, in nine continuous, and in five a combination of both. Twenty-three centres used mothers' own milk as the first choice of feed with extensively hydrolysed feed, amino acid-based feed, donor human milk or standard preterm/term formula as the second choice. Although 22 centres introduced complementary/solid food by 6 months of age, food choice varied greatly between centres and appeared to be culturally based. CONCLUSIONS: There is diversity in post-surgical enteral feeding strategies among centres in Europe. Further multi-centre studies could help to increase evidence-based medicine and management on this topic.


Assuntos
Síndrome do Intestino Curto , Nutrição Enteral , Humanos , Lactente , Fórmulas Infantis , Recém-Nascido , Leite Humano , Síndrome do Intestino Curto/terapia , Inquéritos e Questionários
4.
Sociol Health Illn ; 43(1): 201-219, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33113234

RESUMO

Self-harm in young people remains a significant concern. Studies of emergency departments have centred on negative professional attitudes. There has been limited interrogation and theorisation of what drives such attitudes, and the contexts that sustain them. Adopting a complex systems lens, this study aimed to explore how systems shape professional and patient interactions. It draws upon interviews with healthcare and affiliated professionals (n = 14) in a UK case study hospital, with primary focus on the emergency department. Data were analysed using a thematic approach and the principles of grounded theory. Four themes emerged, with the first three centralising how professionals' practices operate within: (1) a framework of risk management; (2) expectations of progressing patients through the care pathway; and (3) a culture of specialist expertise, with resulting uncertainty about who is responsible for self-harm. The fourth theme considers barriers to system change. A small number of participants described efforts to enact positive modifications to practices, but these were frustrated by entrenched system structures. The potential detrimental impacts for patient care and professional wellbeing are considered. Future practice needs systemic action to support professionals in treating patients experiencing self-harm, while future research requires more ethnographic explorations of the complex system in situ.


Assuntos
Comportamento Autodestrutivo , Adolescente , Atitude do Pessoal de Saúde , Criança , Serviço Hospitalar de Emergência , Pessoal de Saúde , Hospitais , Humanos , Pesquisa Qualitativa , Comportamento Autodestrutivo/prevenção & controle
5.
Prev Sci ; 22(1): 50-61, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-30536190

RESUMO

The paper reflects on a transdisciplinary complex adaptive systems (T-CAS) approach to the development of a school health research network (SHRN) in Wales for a national culture of prevention for health improvement in schools. A T-CAS approach focuses on key stages and activities within a continuous network cycle to facilitate systems level change. The theory highlights the importance of establishing transdisciplinary strategic partnerships to identify and develop opportunities for system reorientation. Investment in and the linking of resources develops the capacity for key social agents to take advantage of disruption points in the re-orientated system, and engagement activities develop the network to facilitate new social interactions and opportunities for transdisciplinary activities. A focus on transdisciplinary action research to co-produce interventions, generate research evidence and inform policy and practice is shown to play an important part in developing new normative processes that act to self-regulate the emerging system. Finally, the provision of reciprocal network benefits provides critical feedback loops that stabilise the emerging adaptive system and promote the network cycle. SHRN is shown to have embedded itself in the system by securing sustainability funding from health and education, a key role in national and regional planning and recruiting every eligible school to the network. It has begun to reorient the system to one of evidence generation (56 research studies co-produced) and opportunities for data-led practice at multiple levels. Further capacity development will be required to capitalise on these. The advantages of a complex systems approach to address barriers to change and the transferability of a T-CAS network approach across settings and cultures are highlighted.


Assuntos
Pesquisa sobre Serviços de Saúde , Prevenção Primária , Instituições Acadêmicas , Retroalimentação , País de Gales
6.
Qual Health Res ; 30(3): 471-485, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31933427

RESUMO

Rates of hospital presentation for self-harm have increased in recent years, and although clinical practice guidelines on clinical provision prioritize positive patient experiences, the quality of provision remains variable. This systematic review provides an updated and extended synthesis of qualitative research on the following: (a) patients' experiences of treatment following presentation to hospital; and (b) patients' perceptions of the impact of treatment on recurrent self-harm and/or suicidal ideation, and future help-seeking. Twenty-six studies were identified for inclusion in the final synthesis. Three meta-themes emerged: (a) individuals undertake extensive identity work when presenting with self-harm, navigating the process of becoming a patient, and negotiating the type of patient they want to be; (b) care ranges from gentle to hostile, with care at admission and discharge being particularly disorientating; and (c) negative experiences of clinical treatment may increase future self-harm. Emerging research gaps include the need for further theoretically informed qualitative research in this area.


Assuntos
Serviço Hospitalar de Emergência , Satisfação do Paciente , Qualidade da Assistência à Saúde , Comportamento Autodestrutivo , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Pesquisa Qualitativa , Comportamento Autodestrutivo/terapia , Resultado do Tratamento , Adulto Jovem
7.
Infect Immun ; 87(2)2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30510107

RESUMO

Eimeria tenella can cause the disease coccidiosis in chickens. The direct and often detrimental impact of this parasite on chicken health, welfare, and productivity is well recognized; however, less is known about the secondary effects that infection may have on other gut pathogens. Campylobacter jejuni is the leading cause of human bacterial foodborne disease in many countries and has been demonstrated to exert negative effects on poultry welfare and production in some broiler lines. Previous studies have shown that concurrent Eimeria infection can influence the colonization and replication of bacteria, such as Clostridium perfringens and Salmonella enterica serovar Typhimurium. Through a series of in vivo coinfection experiments, this study evaluated the impact that E. tenella infection had on C. jejuni colonization of chickens, including the influence of variations in parasite dose and sampling time after bacterial challenge. Coinfection with E. tenella resulted in a significant increase in C. jejuni colonization in the cecum in a parasite dose-dependent manner but a significant decrease in C. jejuni colonization in the spleen and liver of chickens. The results were reproducible at 3 and 10 days after bacterial infection. This work highlights that E. tenella not only has a direct impact on the health and well-being of chickens but can have secondary effects on important zoonotic pathogens.


Assuntos
Infecções por Campylobacter/microbiologia , Campylobacter jejuni/isolamento & purificação , Galinhas/microbiologia , Coccidiose/complicações , Coinfecção , Eimeria tenella , Doenças das Aves Domésticas/microbiologia , Doenças das Aves Domésticas/parasitologia , Animais , Ceco/microbiologia , Coinfecção/microbiologia , Coinfecção/parasitologia
8.
Am J Epidemiol ; 188(1): 57-66, 2019 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-30165561

RESUMO

Few studies have assessed the risk of adverse pregnancy outcomes in women with multiple sclerosis (MS). We used 2 large US administrative databases, the Truven Health MarketScan Database (2011-2015; Truven Health Analytics Inc., Ann Arbor, Michigan) and the Nationwide Inpatient Sample (2007-2011), to identify delivery cohorts. MS and pregnancy outcomes (infections, cesarean delivery, preterm delivery, poor fetal growth, preeclampsia, chorioamnionitis, postpartum hemorrhage, stillbirth, and infant malformations) were identified during pregnancy and at delivery. We calculated adjusted risk ratios according to MS status and relapse(s) in the year before delivery. Among over 5 million pregnancies, we identified 3,875 pregnancies in women with MS. Women with MS had an increased risk of infections during pregnancy (Truven Health: adjusted risk ratio (aRR) = 1.22, 95% confidence interval (CI): 1.16, 1.27) and preterm delivery (Truven Health: aRR = 1.19 (95% CI: 1.04, 1.35); Nationwide Inpatient Sample: aRR = 1.30 (95% CI: 1.16, 1.44)). The risks of other outcomes were similar for women with and without MS. In the Truven Health database, risk ratios for the pregnancy outcomes in women experiencing relapses versus those without relapses were between 0.9 and 1.4, and confidence intervals overlapped the null. Overall, women with MS had an increased risk of infections and preterm delivery; however, their risks for other adverse pregnancy outcomes were not elevated. Disease activity before delivery was not a strong predictor of outcomes.


Assuntos
Esclerose Múltipla/epidemiologia , Complicações na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Adolescente , Adulto , Fatores Etários , Feminino , Desenvolvimento Fetal/fisiologia , Humanos , Michigan/epidemiologia , Pessoa de Meia-Idade , Complicações do Trabalho de Parto/epidemiologia , Gravidez , Recidiva , Fatores Socioeconômicos , Adulto Jovem
9.
Pharmacoepidemiol Drug Saf ; 28(4): 556-560, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30834654

RESUMO

PURPOSE: The purpose of this study is to describe dispensing patterns and comparative safety of disease-modifying therapies (DMTs) during pregnancy in women with multiple sclerosis (MS). METHODS: We identified pregnancies from the Truven Health Marketscan® Commercial Claims and Encounters Database (2011-2015) and ascertained MS before delivery from inpatient and outpatient claims. We computed the proportion of women with DMT dispensing claims around pregnancy and estimated risk ratios of spontaneous abortion, infections, cesarean section, preterm delivery, poor fetal growth, preeclampsia, and major structural malformations by DMT exposure. RESULTS: Of 984 058 pregnancies, 1649 were to women with MS. Thirty-five percent of women with MS filled a prescription for a DMT in the 90 days before pregnancy. DMT use declined during pregnancy but increased again after delivery. Glatiramer acetate and interferon beta were most commonly dispensed. Pregnancies with and without early DMT exposure had similar risks of outcomes to one another and to pregnancies in women without MS. Small numbers did not allow evaluation of specific DMTs. CONCLUSIONS: Approximately one third of commercially insured women with MS in the United States uses DMTs before conception. Neither MS itself nor early pregnancy use of DMTs overall seems to be associated with a substantial risk of adverse pregnancy outcomes.


Assuntos
Imunossupressores/administração & dosagem , Esclerose Múltipla/tratamento farmacológico , Complicações na Gravidez/tratamento farmacológico , Anormalidades Induzidas por Medicamentos/epidemiologia , Aborto Espontâneo/induzido quimicamente , Aborto Espontâneo/epidemiologia , Demandas Administrativas em Assistência à Saúde/estatística & dados numéricos , Adulto , Cesárea/estatística & dados numéricos , Feminino , Acetato de Glatiramer/administração & dosagem , Acetato de Glatiramer/efeitos adversos , Humanos , Imunossupressores/efeitos adversos , Recém-Nascido , Interferon beta/administração & dosagem , Interferon beta/efeitos adversos , Gravidez , Nascimento Prematuro/induzido quimicamente , Nascimento Prematuro/epidemiologia , Estados Unidos/epidemiologia
10.
Pharmacoepidemiol Drug Saf ; 28(9): 1211-1221, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31328328

RESUMO

PURPOSE: The purpose of the study is to develop an algorithm to identify pregnancies in administrative databases and apply it to assess pregnancy rates and outcomes in women prescribed isotretinoin or tretinoin. METHODS: Using the 2011 to 2015 Truven Health MarketScan Database, we identified pregnancies, including losses and terminations. In a cohort design, nonpregnant women filling a prescription for isotretinoin or tretinoin were matched to five women without either prescription. Women were followed for 365 days or until conception, medication discontinuation, or enrollment discontinuation ("prescription episode"). Rates of pregnancy, risks of pregnancy losses, and prevalence of infant malformations at birth were assessed by exposure. RESULTS: We identified 2 179 192 livebirths, 8434 stillbirths, 2521 mixed births, 415 110 spontaneous abortions, 124 556 elective terminations, and 8974 unspecified abortions. There were 86 834 isotretinoin and 973 587 tretinoin episodes, matched to 5 302 105 unexposed women. Pregnancy rates were 3 (isotretinoin), 19 (tretinoin), and 34 (unexposed) per 1000 person-years. Risk of spontaneous pregnancy losses were similar; however, terminations were more common in the isotretinoin-exposed (28% [95% CI: 21%-36%]) than the tretinoin-exposed (10% [95% CI: 9%-11%]) or unexposed pregnancies (6%). Malformations occurred in 4.5% (95% CI: 3.5%-5.6%) of the tretinoin-exposed pregnancies and 4.2% of the unexposed pregnancies (adjusted odds ratio: 1.16 [95% CI: 0.85-1.58]); isotretinoin-exposed births were too few to assess malformations. CONCLUSIONS: Administrative databases can complement risk evaluation and mitigation strategies (REMS) for known teratogens and contribute to safety surveillance for other medications. Here, isotretinoin-exposed pregnancy rates were low, but existent, and many pregnancies were terminated. Tretinoin exposure was not associated with a meaningfully elevated risk of losses or malformations as compared with unexposed pregnancies.


Assuntos
Anormalidades Induzidas por Medicamentos/epidemiologia , Isotretinoína/efeitos adversos , Resultado da Gravidez/epidemiologia , Vigilância de Produtos Comercializados/métodos , Tretinoína/efeitos adversos , Anormalidades Induzidas por Medicamentos/etiologia , Demandas Administrativas em Assistência à Saúde/estatística & dados numéricos , Adolescente , Adulto , Bases de Dados Factuais/estatística & dados numéricos , Prescrições de Medicamentos/estatística & dados numéricos , Feminino , Humanos , Recém-Nascido , Exposição Materna/efeitos adversos , Exposição Materna/estatística & dados numéricos , Pessoa de Meia-Idade , Gravidez , Taxa de Gravidez , Prevalência , Vigilância de Produtos Comercializados/estatística & dados numéricos , Estados Unidos/epidemiologia , Adulto Jovem
11.
Paediatr Perinat Epidemiol ; 32(3): 281-286, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29569366

RESUMO

BACKGROUND: Pre-existing conditions are imperfectly recorded in health care databases. We assessed whether pre-existing neurologic conditions (epilepsy, multiple sclerosis [MS]) were differentially recorded in the presence of major obstetric outcomes (Caesarean delivery, preterm delivery, preeclampsia) in delivery records. We also evaluated the impact of differential recording on measures of frequency and association between the conditions and outcomes. METHODS: The 2011-2014 Truven Health MarketScan® Commercial Claims Dataset was used to identify pregnancies. We calculated the relative recording of epilepsy and MS at delivery hospitalization compared with a 270-day pre-delivery window both overall and by the presence of major obstetric outcomes. We estimated risk ratios for the association between epilepsy and MS with the outcomes for each ascertainment window. RESULTS: We identified 909 065 pregnancies in women continuously enrolled from 270-days before the delivery date. Of women with epilepsy identified in the pre-delivery window, 73% had the condition coded at delivery. For MS, the proportion was 60%. MS recording at delivery did not vary by obstetric outcomes, however, delivery-coded epilepsy was less likely confirmed in the pre-delivery window in the presence of preeclampsia. Generally, the period of ascertainment did not meaningfully impact risk ratios, however, the risk ratio for preeclampsia associated with epilepsy was 1.67 (95% CI 1.47, 1.90) when epilepsy was ascertained at delivery and 1.26 (95% CI 1.07, 1.48) when epilepsy was ascertained in the pre-delivery window (heterogeneity, P = .007). CONCLUSIONS: Ascertainment of epilepsy and MS in delivery hospitalization records underestimated prevalence. However, the window of recording generally did not impact risk ratio estimates of associations with obstetric outcomes.


Assuntos
Epilepsia/epidemiologia , Revisão da Utilização de Seguros , Esclerose Múltipla/epidemiologia , Cobertura de Condição Pré-Existente/legislação & jurisprudência , Complicações na Gravidez/epidemiologia , Adulto , Cesárea , Estudos Transversais , Feminino , Humanos , Razão de Chances , Gravidez , Resultado da Gravidez/epidemiologia , Estados Unidos/epidemiologia
12.
J Pediatr Gastroenterol Nutr ; 66(6): 967-971, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29334565

RESUMO

OBJECTIVES: The aim of the study was to review long-term outcome of intestinal epithelial dysplasia (IED)/tufting enteropathy (TE) patients treated with parenteral nutrition (PN) at home managed by an intestinal failure (IF) rehabilitation service. METHODS: Infants presenting from 1986 to 2010 with IF, and TE histology were retrospectively reviewed for up to 30 years. Data collected included outcome, presentation, nutrition (parenteral/enteral), country of residence, race, EpCAM gene, growth, bone age, and occupation. RESULTS: Thirteen patients (6 boys) in Malta and the UK with TE histology were established on home PN. Survival was 100% for UK children and 92% overall (1 death aged 13 months). Six patients (50% of the surviving 12) weaned off PN. Overall PN requirements reduced with increasing age and <7 infusions/week were needed by 10/12, 83% by 10 years, 6/8, 75% who had reached 15 years, 5/7, 71% who had reached 20, and all 4, 100% >25 years. Two of 12 cases weaned from PN by 10 years, 1 of 8 by 15 years, 3 of 7 by 20 years, and 3 of 4 or 75% >25 years. Seven Maltese patients homozygous for the same EPCAM gene abnormality had a similar outcome to the other cases. Weight, height, bone mineralization, bone age, and insulin-like growth factor-1 (IGF-1) levels were low, but improved with age. Patients achieved educational levels of parents and were employed. CONCLUSIONS: IED cases should have >92% chance of long-term survival and >50% chance of enteral autonomy by/in early adult life and 75% by 25 years. Even if PN dependent s/he can gain employment. Patients with IED managed on PN at home by an IF rehabilitation service should avoid intestinal transplant.


Assuntos
Enteropatias/terapia , Nutrição Parenteral no Domicílio , Adolescente , Adulto , Criança , Pré-Escolar , Auditoria Clínica , Feminino , Seguimentos , Humanos , Lactente , Masculino , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
13.
Proc Natl Acad Sci U S A ; 112(38): E5343-50, 2015 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-26354122

RESUMO

The phylum Apicomplexa includes serious pathogens of humans and animals. Understanding the distribution and population structure of these protozoan parasites is of fundamental importance to explain disease epidemiology and develop sustainable controls. Predicting the likely efficacy and longevity of subunit vaccines in field populations relies on knowledge of relevant preexisting antigenic diversity, population structure, the likelihood of coinfection by genetically distinct strains, and the efficiency of cross-fertilization. All four of these factors have been investigated for Plasmodium species parasites, revealing both clonal and panmictic population structures with exceptional polymorphism associated with immunoprotective antigens such as apical membrane antigen 1 (AMA1). For the coccidian Toxoplasma gondii only genomic diversity and population structure have been defined in depth so far; for the closely related Eimeria species, all four variables are currently unknown. Using Eimeria tenella, a major cause of the enteric disease coccidiosis, which exerts a profound effect on chicken productivity and welfare, we determined population structure, genotype distribution, and likelihood of cross-fertilization during coinfection and also investigated the extent of naturally occurring antigenic diversity for the E. tenella AMA1 homolog. Using genome-wide Sequenom SNP-based haplotyping, targeted sequencing, and single-cell genotyping, we show that in this coccidian the functionality of EtAMA1 appears to outweigh immune evasion. This result is in direct contrast to the situation in Plasmodium and most likely is underpinned by the biology of the direct and acute coccidian life cycle in the definitive host.


Assuntos
Variação Antigênica , Eimeria tenella/genética , Eimeria tenella/imunologia , Animais , Antígenos de Protozoários/imunologia , Sequência de Bases , Galinhas/parasitologia , Coccidiose/parasitologia , Cruzamentos Genéticos , Fezes , Variação Genética , Genética Populacional , Genótipo , Geografia , Dados de Sequência Molecular , Oocistos , Filogenia , Plasmodium/genética , Plasmodium/imunologia , Polimorfismo de Nucleotídeo Único , Doenças das Aves Domésticas/parasitologia , Vacinas Protozoárias
14.
Sociol Health Illn ; 40(5): 779-792, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29633278

RESUMO

Potential merits of a social practice perspective for examining the meanings and dynamics of family food include moving beyond individual behaviour, and exploring how practices emerge, develop and change. However, researchers have struggled to encourage reflection on mundane practices, and how to understand associated meanings. Drawing on a study of families in South Wales, this article reflects on the value of the diary-interview approach in addressing these methodological challenges, and aims to explore and understand the dynamics of control across family contexts. Contemporary practice theories distinguish between practices as 'performances' and practices as 'entities' and the diary-interview method facilitated an examination of these dimensions. Detailed accounts of daily 'performances' (through diaries), alongside reflection on underlying contexts and 'entities' (through interviews), illustrated the entanglement of control, practices and context. The article adds further complexity to the concept of practice 'bundles' which facilitated an understanding of how food was interrelated with other practices - across family contexts and across generations. Sociological approaches with a practices perspective at the core, offer potential for developing public health interventions by acknowledging: the relational meaning of food; the embeddedness of food within everyday practices; and the need to consider interventions across a range of policy areas.


Assuntos
Relações Familiares/psicologia , Comportamento Alimentar/psicologia , Preferências Alimentares , Poder Familiar/psicologia , Cultura , Humanos , Entrevistas como Assunto , País de Gales
15.
Thorax ; 72(4): 327-332, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27539619

RESUMO

BACKGROUND: Despite extensive knowledge regarding the effect of pulmonary exacerbations treated with intravenous antibiotics on clinical outcomes in cystic fibrosis (CF), there is little known about the role of milder pulmonary exacerbations treated with oral antibiotics (oPEx). METHODS: This was a retrospective cohort study of patients with CF followed at the Hospital for Sick Children and St. Michael's Hospital from 2009 to 2014. We evaluated the effect of oPEx on short-term clinical outcomes as the proportion of oPEx events in which 100% or 90% of baseline FEV1% predicted was recovered at the end of treatment. We then examined the association of the number of oPEx events in the past 12 months on lung function (FEV1% predicted) and nutritional status (body mass index (BMI) z-score) using a mixed-effects model. RESULTS: There were a total of 2608 oPEx events in 570 subjects during the study period. In over half (53.4%) of oPEx events, lung function was already at 90% or higher of baseline FEV1 at the initiation of oral antibiotic therapy and 82% were at 90% or higher of baseline FEV1 at follow-up. In individuals with CF, one or more oPex events in the previous 12 months were associated with decreased FEV1 compared with 12 months periods without oPex events. When the cumulative effect of oPExs on lung function was examined over the entire study period, patients with six or more oPEx events had the steepest rate of FEV1 decline. oPEx events were not associated with changes in BMI. CONCLUSIONS: oPEx events are associated with short-term loss of FEV1 and have a negative effect on lung function over time.


Assuntos
Antibacterianos/uso terapêutico , Fibrose Cística/microbiologia , Administração Intravenosa , Administração Oral , Adolescente , Adulto , Antibacterianos/administração & dosagem , Criança , Fibrose Cística/fisiopatologia , Progressão da Doença , Feminino , Humanos , Masculino , Estado Nutricional , Testes de Função Respiratória , Estudos Retrospectivos , Resultado do Tratamento
16.
Epidemiology ; 28(3): 419-427, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28151742

RESUMO

BACKGROUND: Despite a call to study the effect of weight gain pattern on development of gestational diabetes mellitus, few studies have correctly adjusted for independent effects of gain after the first trimester. We used a conditional percentile approach to model the independent association between first and second trimester weight gain trajectories and development of gestational diabetes. METHODS: We sampled women delivering singleton infants from 1998 to 2010 at Magee-Womens Hospital in Pittsburgh, PA, (n = 124,590) using a case-cohort design. We modeled weight gain trajectories in the first and second trimesters of pregnancy using conditional weight gain percentiles, and used multivariable logistic regression to assess independent associations of the trajectory with gestational diabetes. We studied associations separately by prepregnancy body mass index category. RESULTS: The final cohort included 806 women with gestational diabetes and 4,819 randomly sampled women who delivered without gestational diabetes. In normal-weight women, every SD increase in weight gain in the first trimester above her predicted gain was associated with a 23% increased odds of gestational diabetes (95% confidence interval: 0.2%, 51%). Second trimester gain trajectory was not associated with gestational diabetes (odds ratio: 1.1, [95% confidence interval: 0.9, 1.3]) although the direction of effect was positive. This pattern was similar in obese class I and II but not in overweight and obese class III women. CONCLUSIONS: An upward weight gain trajectory in the first trimester was positively associated with gestational diabetes for women of most prepregnancy BMI categories. Second trimester weight gain trajectory was not associated with gestational diabetes for any group.


Assuntos
Diabetes Gestacional/epidemiologia , Obesidade Mórbida/epidemiologia , Primeiro Trimestre da Gravidez , Segundo Trimestre da Gravidez , Aumento de Peso , Adulto , Índice de Massa Corporal , Feminino , Humanos , Modelos Logísticos , Análise Multivariada , Obesidade/epidemiologia , Sobrepeso/epidemiologia , Gravidez , Complicações na Gravidez/epidemiologia , Índice de Gravidade de Doença , Adulto Jovem
17.
Health Educ (Lond) ; 117(3): 234-251, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28725120

RESUMO

PURPOSE: The teaching of cooking is an important aspect of school-based efforts to promote healthy diets among children, and is frequently done by external agencies. Within a limited evidence base relating to cooking interventions in schools, there are important questions about how interventions are integrated within school settings. The purpose of this paper is to examine how a mobile classroom (Cooking Bus) sought to strengthen connections between schools and cooking, and drawing on the concept of the sociotechnical network, theorise the interactions between the Bus and school contexts. DESIGN/METHODOLOGY/APPROACH: Methods comprised a postal questionnaire to 76 schools which had received a Bus visit, and case studies of the Bus' work in five schools, including a range of school sizes and urban/rural locations. Case studies comprised observation of Cooking Bus sessions, and interviews with school staff. FINDINGS: The Cooking Bus forged connections with schools through aligning intervention and schools' goals, focussing on pupils' cooking skills, training teachers and contributing to schools' existing cooking-related activities. The Bus expanded its sociotechnical network through post-visit integration of cooking activities within schools, particularly teachers' use of intervention cooking kits. RESEARCH LIMITATIONS/IMPLICATIONS: The paper highlights the need for research on the long-term impacts of school cooking interventions, and better understanding of the interaction between interventions and school contexts. ORIGINALITY/VALUE: This paper adds to the limited evidence base on school-based cooking interventions by theorising how cooking interventions relate to school settings, and how they may achieve integration.

18.
Am J Obstet Gynecol ; 213(4): 557.e1-8, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26116872

RESUMO

OBJECTIVE: The purpose of this study was to determine the influence of planned mode and planned timing of delivery on neonatal outcomes in infants with gastroschisis. STUDY DESIGN: Data from the Canadian Pediatric Surgery Network cohort were used to identify 519 fetuses with isolated gastroschisis who were delivered at all tertiary-level perinatal centers in Canada from 2005-2013 (n = 16). Neonatal outcomes (including length of stay, duration of total parenteral nutrition, and a composite of perinatal death or prolonged exclusive total parenteral nutrition) were compared according to the 32-week gestation planned mode and timing of delivery with the use of the multivariable quantile and logistic regression. RESULTS: Planned induction of labor was not associated with decreased length of stay (adjusted median difference, -2.6 days; 95% confidence interval [CI], -9.9 to 4.8), total parenteral nutrition duration (adjusted median difference, -0.2 days; 95% CI, -6.4 to 6.0), or risk of the composite adverse outcome (relative risk, 1.7; 95% CI, 0.1-3.2) compared with planned vaginal delivery after spontaneous onset of labor. Planned delivery at 36-37 weeks' gestation was not associated with decreased length of stay (adjusted median difference, 5.9 days; 95% CI, -5.7 to 17.5), total parenteral nutrition duration (adjusted median difference, 3.2 days; 95% CI, -7.9 to 14.3), or risk of composite outcome (relative risk, 2.3; 95% CI, 0.8-5.4) compared with planned delivery at ≥38 weeks' gestation. CONCLUSION: Infants with gastroschisis who were delivered after planned induction or planned delivery at 36-37 weeks' gestation did not have significantly better neonatal outcomes than planned vaginal delivery after spontaneous onset of labor and planned delivery at ≥38 weeks' gestation.


Assuntos
Parto Obstétrico/métodos , Gastrosquise , Idade Gestacional , Tempo de Internação/estatística & dados numéricos , Nutrição Parenteral/estatística & dados numéricos , Sistema de Registros , Adulto , Canadá , Cesárea/métodos , Estudos de Coortes , Feminino , Humanos , Recém-Nascido , Trabalho de Parto Induzido/métodos , Modelos Logísticos , Masculino , Análise Multivariada , Avaliação de Resultados em Cuidados de Saúde , Gravidez , Estudos Prospectivos , Centros de Atenção Terciária , Fatores de Tempo , Adulto Jovem
19.
Nutr Clin Pract ; 39(3): 673-684, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38142311

RESUMO

BACKGROUND: Body composition could help identify malnutrition in pediatric patients, but there is uncertainty over which techniques are most suitable and prevailing opinion that measurements are difficult to obtain in practice. This study examined the acceptability, practicality, reliability, and validity of different anthropometric and body composition measurements in patients with complex diagnoses in a tertiary pediatric hospital. METHODS: A total of 152 children aged 5-18 years had weight, height, body mass index (BMI), mid-upper arm circumference (MUAC), 4-site skinfold thicknesses (SFT), bioelectrical impedance analysis (BIA), and dual-energy x-ray absorptiometry (DXA) assessed on admission and discharge. Acceptability was assessed in a continuous scale, practicality with number/percentage of successful measurements, reliability with intraclass correlation coefficients and coefficients of repeatability, and validity between "simpler" techniques and DXA with Bland-Altman analysis of agreement and Cohen kappa. RESULTS: Techniques were overall acceptable. Measurements were successful in >50%, with patient refusal uncommon. Coefficients of repeatability were good (0.3 cm MUAC and height, 0.2 kg weight, and 1.0 mm SFTs). All techniques significantly overestimated DXA fat mass, but BMI and triceps SFT better identified abnormal fat mass (κ = 0.46 and 0.49). BIA fat-free mass was not significantly different from DXA, with substantial agreement between techniques (κ = 0.65). CONCLUSION: Body composition by a range of techniques is acceptable, practical, and reliable in a diverse group of children with complex diagnoses. BIA seems a good alternative to DXA for assessing fat-free mass, triceps SFT, and BMI for fat mass but should be used with care as it could overestimate total fat mass in individuals.


Assuntos
Absorciometria de Fóton , Composição Corporal , Índice de Massa Corporal , Impedância Elétrica , Dobras Cutâneas , Humanos , Criança , Feminino , Masculino , Absorciometria de Fóton/métodos , Adolescente , Reprodutibilidade dos Testes , Pré-Escolar , Antropometria/métodos , Peso Corporal , Desnutrição/diagnóstico , Braço
20.
BMC Prim Care ; 25(1): 118, 2024 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-38637731

RESUMO

BACKGROUND: Higher numbers of family physicians (FPs) stopped practicing or retired during the COVID-19 pandemic, worsening the family doctor shortage in Canada. Our study objective was to determine which factors were associated with FPs' plans to retire earlier during the COVID-19 pandemic. METHODS: We administered two cross-sectional online surveys to Ontario FPs asking whether they were "planning to retire earlier" as a result of the pandemic during the first and third COVID-19 pandemic waves (Apr-Jun 2020 and Mar-Jul 2021). We used logistic regression to determine which factors were associated with early retirement planning, adjusting for age. RESULTS: The age-adjusted proportion of FP respondents planning to retire earlier was 8.2% (of 393) in the first-wave and 20.5% (of 454) in the third-wave. Planning for earlier retirement during the third-wave was associated with age over 50 years (50-59 years odds ratio (OR) 5.37 (95% confidence interval (CI):2.33-12.31), 60 years and above OR 4.18 (95% CI: 1.90-10.23)), having difficulty handling increased non-clinical responsibilities (OR 2.95 (95% CI: 1.79-4.94)), feeling unsupported to work virtually (OR 1.96 (95% CI: 1.19-3.23)) or in-person (OR 2.70 (95% CI: 1.67-4.55)), feeling unable to provide good care (OR 1.82 (95% CI: 1.10-3.03)), feeling work was not valued (OR 1.92 (95% CI: 1.15-3.23)), feeling frightened of dealing with COVID-19 (OR 2.01 (95% CI: 1.19-3.38)), caring for an elderly relative (OR 2.36 (95% CI: 1.69-3.97)), having difficulty obtaining personal protective equipment (OR 2.00 (95% CI: 1.16-3.43)) or difficulty implementing infection control practices in clinic (OR 2.10 (95% CI: 1.12-3.89)). CONCLUSIONS: Over 20% of Ontario FP respondents were considering retiring earlier by the third-wave of the COVID-19 pandemic. Supporting FPs in their clinical and non-clinical roles, such that they feel able to provide good care and that their work is valued, reducing non-clinical (e.g., administrative) responsibilities, dealing with pandemic-related fears, and supporting infection control practices and personal protective equipment acquisition in clinic, particularly in those aged 50 years or older may help increase family physician retention during future pandemics.


Assuntos
COVID-19 , Aposentadoria , Idoso , Humanos , Médicos de Família , COVID-19/epidemiologia , Estudos Transversais , Pandemias , Ontário/epidemiologia
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