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1.
Dev Dyn ; 252(10): 1269-1279, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37171017

RESUMEN

BACKGROUND: The vertebrate inner ear contains distinct sensory epithelia specialized for auditory or vestibular function. In zebrafish, the first sensory epithelia form at opposite ends of the otic vesicle and are functionally distinct: the anterior utricular macula is essential for vestibular function whereas the posterior saccular macula is critical for hearing. Mechanisms distinguishing these maculae are not clear. Here, we examined the effects of manipulating Fgf or Hh on expression of pax5 and pou3f3b, unique markers of utricular and saccular identity. We also examined the roles of pax2a and atoh1a/b, early regulators of sensory specification. RESULTS: fgf3 and fgf8a were uniquely required for pax5 and pou3f3b, respectively. Elevating Fgf or blocking Hh expanded expression of pax5 but repressed pou3f3b, while blocking Fgf had the opposite effect. Blocking sensory specification did not affect pax5 or pou3f3b, but both markers were lost in pax2a-/- mutants. Maintenance of pax2a expression requires Fgf, Hh and Pax2a itself. CONCLUSION: Specification of utricular identity requires high Fgf and is repressed by Hh, whereas saccular identity requires Hh plus low Fgf. pax2a acts downstream of Fgf and Hh to maintain both fates. Comparison with mouse suggests this may reflect a broadly conserved developmental mechanism.


Asunto(s)
Oído Interno , Pez Cebra , Animales , Ratones , Oído Interno/metabolismo , Audición , Factor de Transcripción PAX2/genética , Factor de Transcripción PAX2/metabolismo , Pez Cebra/metabolismo , Proteínas de Pez Cebra/genética , Proteínas de Pez Cebra/metabolismo , Factor 1 de Crecimiento de Fibroblastos , Proteínas Hedgehog , Factores de Crecimiento de Fibroblastos
2.
Dev Biol ; 492: 139-153, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36244503

RESUMEN

In zebrafish, sensory epithelia and neuroblasts of the inner ear form simultaneously in abutting medial and lateral domains, respectively, in the floor of the otic vesicle. Previous studies support regulatory roles for Fgf and Wnt, but how signaling is coordinated is poorly understood. We investigated this problem using pharmacological and transgenic methods to alter Fgf or Wnt signaling from early placodal stages to evaluate later changes in growth and patterning. Blocking Fgf at any stage reduces proliferation of otic tissue and terminates both sensory and neural specification. Wnt promotes proliferation in the otic vesicle but is not required for sensory or neural development. However, sustained overactivation of Wnt laterally expands sensory epithelia and blocks neurogenesis. pax2a, sp5a and sp5l are coregulated by Fgf and Wnt and show overlapping expression in the otic placode and vesicle. Gain- and loss-of-function studies show that these genes are together required for Wnt's suppression of neurogenesis, as well as some aspects of sensory development. Thus, pax2a, sp5a and sp5l are critical for mediating Fgf and Wnt signaling to promote spatially localized sensory and neural development.


Asunto(s)
Oído Interno , Pez Cebra , Animales , Pez Cebra/genética , Regulación del Desarrollo de la Expresión Génica , Factores de Crecimiento de Fibroblastos/metabolismo , Oído Interno/metabolismo , Vía de Señalización Wnt , Proteínas de Pez Cebra/genética , Factor de Transcripción PAX2/genética , Factor de Transcripción PAX2/metabolismo
3.
Cancer Control ; 30: 10732748221150393, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36631419

RESUMEN

BACKGROUND: Multimorbidity is a concern for people living with cancer, as over 90% have at least one other condition. Multimorbidity complicates care coming from multiple providers who work within separate, siloed systems. Information describing high-risk and high-cost disease combinations has potential to improve the experience, outcome, and overall cost of care by informing comprehensive care management frameworks. This study aimed to identify disease combinations among people with cancer and other conditions, and to assess the health burden associated with those combinations to help healthcare providers more effectively prioritize and coordinate care. METHODS: We used a population-based retrospective cohort design including adults with a cancer diagnosis between March-2003 and April-2013, followed-up until March 2018. We used observed disease combinations defined by level of multimorbidity and partitive (k-means) clusters, ie groupings of similar diseases based on the prevalence of each condition. We assessed disease combination-associated health burden through health service utilization, including emergency department visits, primary care visits and hospital admissions during the follow-up period. RESULTS: 549,248 adults were included in the study. Anxiety, diabetes mellitus, hypertension, and osteoarthritis co-occurred with cancer 1.1 to 5.3 times more often than expected by chance. Disease combinations varied by cancer type and age but were similar between sexes. The largest partitive cluster included cancer and anxiety, with at least 25% of individuals also having osteoarthritis. Cancer also tended to co-occur with hypertension (8.0%) or osteoarthritis (6.2%). There were differences between clusters in healthcare utilization, regardless of the number of disease combinations or clustering approach used. CONCLUSION: Researchers, clinicians, policymakers, and other stakeholders can use the clustering information presented here to improve the healthcare system for people with cancer multimorbidity by developing cluster-specific care management and clinical guidelines for common disease combinations.


Asunto(s)
Hipertensión , Neoplasias , Osteoartritis , Adulto , Humanos , Multimorbilidad , Estudios Retrospectivos , Comorbilidad , Ontario/epidemiología , Enfermedad Crónica , Hipertensión/epidemiología , Osteoartritis/epidemiología , Neoplasias/epidemiología , Neoplasias/terapia , Análisis por Conglomerados
4.
BMC Health Serv Res ; 23(1): 1369, 2023 Dec 07.
Artículo en Inglés | MEDLINE | ID: mdl-38062410

RESUMEN

BACKGROUND: Forward with Dementia is a co-designed campaign to improve communication of dementia diagnosis and post-diagnostic support. METHODS: Webinars, a website, social and traditional media, and promotions through project partners were used to disseminate campaign messages to health and social care professionals (primary audience) and people with dementia and carers (secondary audience). The campaign ran between October 2021 and June 2022, with 3-months follow-up. The RE-AIM framework was used for process evaluation. Measurements included surveys and interviews, a log of activities (e.g. webinars, social media posts) and engagements (e.g. attendees, reactions to posts), and Google Analytics. RESULTS: There were 29,053 interactions with campaign activities. More than three-quarters of professionals (n = 63/81) thought webinars were very or extremely helpful. Professionals and people with dementia and carers reported that the website provided appropriate content, an approachable tone, and was easy to use. Following campaign engagement, professionals planned to (n = 77/80) or had modified (n = 29/44) how they communicated the diagnosis and/or provided post-diagnostic information and referrals. Qualitative data suggested that the campaign may have led to benefits for some people with dementia and carers. CONCLUSIONS: Forward with Dementia was successful in terms of reach, appropriateness, adoption and maintenance for professionals, however flow-through impacts on people with dementia are not clear. Targeted campaigns can potentially change health professionals' communication and support around chronic diseases such as dementia.


Asunto(s)
Demencia , Comunicación en Salud , Humanos , Australia , Cuidadores , Apoyo Social , Demencia/diagnóstico
5.
Sex Transm Dis ; 49(2): 133-138, 2022 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-34475360

RESUMEN

BACKGROUND: Research suggests that Gardnerella vaginalis (GV) is the keystone pathogen in bacterial vaginosis (BV). Knowledge gaps exist regarding the role of GV eradication in the development of BV. This study was designed to test the hypothesis that vaginal colonization with GV could be eradicated by treatment of women without BV with amoxicillin, a drug highly active against GV. If GV is necessary for the development of BV, then eradication of GV may prevent the development of BV. METHODS: We conducted a randomized control trial of amoxicillin 500 mg twice daily versus placebo for 7 days in women aged 18 to 45 years without vaginitis who screened positive for vaginal colonization with GV by quantitative polymerase chain reaction. Test-of-cure visit for GV was conducted at day 21. RESULTS: One hundred seventy-two women met preliminary criteria and were screened for enrollment. Ninety-seven GV-positive women were randomized to receive amoxicillin versus placebo. Eradication of GV occurred in 21% of women randomized to amoxicillin versus 16% on placebo (P = 0.757). In the 4 weeks between screening and test-of-cure visit, 16 of 92 (17%) of participants developed Nugent scores greater than 3 with 8 of 92 (9%) having BV. All of these were in participants in whom GV was not eradicated (P = 0.035). CONCLUSIONS: The study failed to show a benefit of treatment with amoxicillin to eradicate GV. No participants in whom GV was eradicated had progression to abnormal vaginal flora during the study period.


Asunto(s)
Gardnerella vaginalis , Vaginosis Bacteriana , Adolescente , Adulto , Amoxicilina/uso terapéutico , Femenino , Humanos , Persona de Mediana Edad , Vagina/microbiología , Vaginosis Bacteriana/diagnóstico , Adulto Joven
6.
Br J Nutr ; 126(12): 1823-1831, 2021 12 28.
Artículo en Inglés | MEDLINE | ID: mdl-33602347

RESUMEN

Vitamin B12 (B12) is a co-enzyme essential for fetal growth and development. Lower maternal B12 status has been associated with preterm birth (<37 gestational weeks) and low birth weight (<2500 g), which are linked to morbidity and mortality across the lifespan. In Canada, 17-25 % of women in early pregnancy had a serum total B12 concentration <148 pmol/l and maternal total B12 concentration decreased throughout pregnancy. This study aimed to determine the association between maternal B12 status and birth outcomes in Canadian mother-newborn dyads. A secondary analysis of 709 mother-newborn dyads in British Columbia (BC), Canada, was conducted. Bio-banked first- (n 656) and second-trimester (n 709) maternal serum samples of apparently healthy South Asian (50 %) and European (50 %) women from the BC Prenatal Genetic Screening Program were quantified for B12 biomarkers (total B12, holotranscobalamin (holoTC), methylmalonic acid (MMA) and total homocysteine (tHcy)). Obstetric history and birth outcome data were obtained from the BC Perinatal Data Registry. All associations were determined using multiple linear regression. Maternal serum total B12, holoTC, MMA and tHcy had a mean weekly decrease of 3·64 pmol/l, 1·04 pmol/l, 1·44 nmol/l and 0·104 µmol/l, respectively (P < 0·001). Despite a total B12 concentration <148 pmol/l among 20-25 % of the women, maternal B12 biomarker concentrations were not associated with birth weight z-score, head circumference z-score and gestational age at birth (P > 0·05). Additional research in women at high risk of adverse birth outcomes and the association between maternal B12 status and functional, for example, cognitive, outcomes is needed.


Asunto(s)
Nacimiento Prematuro , Deficiencia de Vitamina B 12 , Canadá/epidemiología , Femenino , Homocisteína , Humanos , Recién Nacido , Madres , Embarazo , Vitamina B 12 , Vitaminas
7.
BMC Fam Pract ; 22(1): 229, 2021 11 16.
Artículo en Inglés | MEDLINE | ID: mdl-34784892

RESUMEN

BACKGROUND: A shortage of primary care physicians has been reported in many countries. Primary care systems are diverse and the challenges leading to a decline in workforce are at times context-specific and require tailored solutions. Inviting frontline clinicians to share their insights can help identify optimal strategies for a particular setting. To determine priorities for family physicians' and general practitioners' recruitment and retention in Singapore, we invited primary care physicians to rank pertinent strategies using PRIORITIZE, a transparent, systematic priority-setting approach. METHODS: The study advisory board, consisting of representatives of Singapore's key primary care stakeholders, determined the criteria for prioritising of general practitioners (GPs) and family physicians (FPs) recruitment and retention strategies in Singapore. A comprehensive list of GPs and FPs recruitment and retention strategies was extracted from a recent systematic review of the relevant literature. A questionnaire listing the strategies and the scoring criteria was administered online to doctors practicing in public and private sector in Singapore. Respondents' scores were combined to create a ranked list of locally most relevant strategies for improving GPs and FPs recruitment and retention. RESULTS: We recruited a diverse sample of 50 GPs and FPs practicing in a variety of primary care settings, many with a range of additional professional responsibilities. Around 60 and 66% of respondents thought that there was a problem with recruitment and retention of GPs and FPs in Singapore, respectively. Strategies focusing on promoting primary care by emphasizing the advantages and enhancing the status of the profession as well as training-related strategies, such as sub-specialisation and high-quality rotations were considered priorities for improving recruitment. For retention of GPs and FPs, improving working conditions by increasing GPs' and FPs' salary and recognition, as well as varying or reducing time commitment, were seen as the most important strategies. The ranking between physicians working in public and private sector was mostly similar, with nine out of the top ten recruitment and retention strategies being the same. CONCLUSION: Primary care physicians' ranking of recruitment and retention strategies for GPs and FPs in Singapore provide important insight into the challenges and the solutions as seen by the members of the profession themselves. This information can guide future policy and decision making in this area.


Asunto(s)
Médicos Generales , Médicos de Familia , Humanos , Atención Primaria de Salud , Singapur , Recursos Humanos
8.
Ann Fam Med ; 18(2): 110-117, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-32152014

RESUMEN

PURPOSE: Online programs may help to engage patients in advance care planning in outpatient settings. We sought to implement an online advance care planning program, PREPARE (Prepare for Your Care; http://www.prepareforyourcare.org), at home and evaluate the changes in advance care planning engagement among patients attending outpatient clinics. METHODS: We undertook a prospective before-and-after study in 15 primary care clinics and 2 outpatient cancer centers in Canada. Patients were aged 50 years or older (primary care) or 18 years or older (cancer care) and free of cognitive impairment. They used the PREPARE website over 6 weeks, with reminders sent at 2 or 4 weeks. We used the 55-item Advance Care Planning Engagement Survey, which measures behavior change processes (knowledge, contemplation, self-efficacy, readiness) on 5-point scales and actions relating to substitute decision makers, quality of life, flexibility for the decision maker, and asking doctors questions on an overall scale from 0 to 21; higher scores indicate greater engagement. RESULTS: In total, 315 patients were screened and 172 enrolled, of whom 75% completed the study (mean age = 65.6 years, 51% female, 35% had cancer). The mean behavior change process score was 2.9 (SD 0.8) at baseline and 3.5 (SD 0.8) at follow-up (mean change = 0.6; 95% CI, 0.49-0.73); the mean action measure score was 4.0 (SD 4.9) at baseline and 5.2 (SD 5.4) at follow-up (mean change = 1.2; 95% CI, 0.54-1.77). The effect size was moderate (0.75) for the former and small (0.23) for the latter. Findings were similar in both primary care and cancer care populations. CONCLUSIONS: Implementation of the online PREPARE program in primary care and cancer care clinics increased advance care planning engagement among patients.


Asunto(s)
Planificación Anticipada de Atención , Toma de Decisiones , Internet , Participación del Paciente/estadística & datos numéricos , Anciano , Anciano de 80 o más Años , Canadá , Estudios Controlados Antes y Después , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Pacientes Ambulatorios , Atención Primaria de Salud , Estudios Prospectivos , Encuestas y Cuestionarios
9.
Fam Pract ; 37(2): 219-226, 2020 03 25.
Artículo en Inglés | MEDLINE | ID: mdl-31536615

RESUMEN

BACKGROUND: People who engage in advance care planning (ACP) are more likely to receive health care that is concordant with their goals at the end of life. Little discussion of ACP occurs in primary care. OBJECTIVE: The objective of this study was to describe primary care clinicians' perspectives on having ACP conversations with their patients. METHODS: We conducted a survey of family physicians and non-physician clinicians in primary care in 2014-2015. We compared family physicians and non-physician clinicians on willingness, confidence, participation and acceptability for other clinicians to engage in six aspects of ACP (initiating, exchanging information, decision coaching, finalizing plans, helping communicate plans with family members and other health professionals) on scales from 0 = not at all/extremely unacceptable to 6 = very/all the time/extremely acceptable. RESULTS: The response rate was 72% (n = 117) among family physicians and 69% (n = 64) among non-physician clinicians. Mean ratings (standard deviation [SD]) of willingness were high (4.5 [1.4] to 5.0 [1.2] for physicians; 3.4 [1.8] to 4.6 [1.6] non-physician clinicians). There was little participation (mean ratings 2.4 [1.7] to 2.7 [1.6] for physicians, 1.0 [1.5] to 1.4 [1.7] for non-physician clinicians). Non-physician clinicians rated confidence statistically significantly lower than physicians for all ACP aspects. Acceptability for non-physician clinician involvement was high in both groups (mean acceptability ratings greater than 4). CONCLUSION: Current engagement of primary care clinicians in ACP is low. Given the high willingness and acceptability for non-physician clinician involvement, increasing the capacity of non-physician clinicians could enable uptake of ACP in primary care.


Asunto(s)
Planificación Anticipada de Atención/organización & administración , Actitud del Personal de Salud , Comunicación , Médicos de Atención Primaria , Adulto , Canadá , Familia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Relaciones Médico-Paciente , Atención Primaria de Salud , Encuestas y Cuestionarios
10.
BMC Fam Pract ; 21(1): 94, 2020 05 25.
Artículo en Inglés | MEDLINE | ID: mdl-32450812

RESUMEN

BACKGROUND: Although patient-centred care has become increasingly important across all medical specialties, when it comes to end of life care, research has shown that treatments ordered are not often concordant with people's expressed preferences. Patient and family engagement in Advance Care Planning (ACP) in the primary care setting could improve the concordance between patients' wishes and the healthcare received when patients cannot speak for themselves. The aim of this study was to better understand the barriers faced by older patients regarding talking to their family members and family physicians about ACP. METHODS: In this multi-site cross-sectional study, three free text questions regarding reasons patients found it difficult to discuss ACP with their families or their family physicians were part of a self-administered questionnaire about patients' knowledge of and engagement in ACP. The questionnaire, which included closed ended questions followed by three probing open ended questions, was distributed in 20 family practices across 3 provinces in Canada. The free text responses were analyzed using thematic analysis and form the basis of this paper. RESULTS: One hundred two participants provided an analyzable response to the survey when asked why they haven't talked to someone about ACP. Two hundred fifty-four answered the question about talking to their physician and 340 answered the question about talking to family members. Eight distinct themes emerged from the free text response analysis: 1. They were too young for ACP; 2. The topic is too emotional; 3. The Medical Doctor (MD) should be responsible for bringing up ACP 4. A fear of negatively impacting the patient-physician relationship; 5. Not enough time in appointments; 6. Concern about family dynamics; 7. It's not a priority; and 8. A lack of knowledge about ACP. CONCLUSIONS: Patients in our sample described many barriers to ACP discussions, including concerns about the effect these discussions may have on relationships with both family members and family physicians, and issues relating to patients' knowledge and interpretation of the importance, responsibility for, or relevance of ACP itself. Family physicians may be uniquely placed to leverage the longitudinal, person- centred relationship they have with patients to mitigate some of these barriers.


Asunto(s)
Planificación Anticipada de Atención/organización & administración , Barreras de Comunicación , Medicina Familiar y Comunitaria/métodos , Prioridad del Paciente , Relaciones Médico-Paciente/ética , Cuidado Terminal , Adulto , Anciano , Canadá/epidemiología , Estudios Transversales , Familia/psicología , Femenino , Humanos , Masculino , Medición de Resultados Informados por el Paciente , Investigación Cualitativa , Cuidado Terminal/ética , Cuidado Terminal/métodos , Cuidado Terminal/psicología
11.
J Med Internet Res ; 22(12): e22420, 2020 12 16.
Artículo en Inglés | MEDLINE | ID: mdl-33325836

RESUMEN

Historically, medical trainees were educated in the hospital on real patients. Over the last decade, there has been a shift to practicing skills through simulations with mannequins or patient actors. Virtual reality (VR), and in particular, the use of 360-degree video and audio (cineVR), is the next-generation advancement in medical simulation that has novel applications to augment clinical skill practice, empathy building, and team training. In this paper, we describe methods to design and develop a cineVR medical education curriculum for trauma care training using real patient care scenarios at an urban, safety-net hospital and Level 1 trauma center. The purpose of this publication is to detail the process of finding a cineVR production partner; choosing the camera perspectives; maintaining patient, provider, and staff privacy; ensuring data security; executing the cineVR production process; and building the curriculum.


Asunto(s)
Simulación por Computador/normas , Educación Médica/métodos , Entrenamiento Simulado/métodos , Realidad Virtual , Humanos , Heridas y Lesiones
12.
J Nutr ; 149(12): 2145-2155, 2019 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-31504713

RESUMEN

BACKGROUND: As a methyl donor required in the folate-vitamin B-12 independent remethylation of total homocysteine (tHcy) to methionine, betaine is critical for fetal development. Pregnant South Asian women living in Canada had a higher reported prevalence of low vitamin B-12 status compared with Europeans; betaine concentrations in this population are unknown. OBJECTIVES: We aimed to compare serum betaine concentrations between South Asian and European pregnant women, and to determine the relation between betaine and tHcy concentrations in early pregnancy. METHODS: A retrospective cohort study was conducted using biobanked serum samples of 723 apparently healthy pregnant women of South Asian (50%) and European ethnicity residing in British Columbia, Canada. Betaine, dimethylglycine (DMG), tHcy, and related metabolites were quantified in samples collected in the first (8-13 weeks of gestation) and second (14-20 weeks of gestation) trimesters. The relation between betaine and tHcy concentrations was assessed using a generalized regression model adjusted for weeks of gestation, ethnicity, prepregnancy BMI, maternal age, neonatal sex, parity, total vitamin B-12, folate, pyridoxal 5'-phosphate, and methionine concentrations. RESULTS: Median serum concentrations of betaine and its metabolite DMG were higher in South Asian women in the first (19.8 [IQR: 16.3-25.0] and 1.55 [IQR: 1.30-1.96] $\mu {\rm mol/L} $, respectively) and second trimesters (16.1 [IQR: 12.9-19.8] and 1.42 [IQR: 1.14-1.81] $\mu {\rm mol/L} $, respectively) compared with European women (17.6 [IQR: 13.7-22.6] and 1.38 [IQR: 1.12-1.77] $\mu {\rm mol/L} $, respectively) and (12.9 [IQR: 10.6-16.7] and 1.19 [IQR: 0.97-1.52] $\mu {\rm mol/L} $, respectively; all P values < 0.0001). Betaine was inversely associated with tHcy concentration (ß = -0.0208; 95% CI: -0.0341, -0.00742; P = 0.002). Additionally, total vitamin B-12 was associated with tHcy concentration (ß = -0.0312; 95% CI: -0.0401, -0.0224), after adjusting for confounding factors. CONCLUSIONS: Pregnant South Asian women residing in Canada had higher betaine and DMG concentrations, compared with women of European ethnicity, while betaine and total vitamin B-12 predicted tHcy independent of ethnicity. Our results emphasize the role of betaine, as methyl donor, in the remethylation of tHcy in a folate-replete population.


Asunto(s)
Betaína/sangre , Etnicidad , Homocisteína/sangre , Sarcosina/análogos & derivados , Adulto , Canadá , Europa (Continente) , Femenino , Humanos , India , Embarazo , Estudios Retrospectivos , Sarcosina/sangre
13.
BMC Med Res Methodol ; 19(1): 236, 2019 12 11.
Artículo en Inglés | MEDLINE | ID: mdl-31829133

RESUMEN

BACKGROUND: Falls are common among older people, and General Practitioners (GPs) could play an important role in implementing strategies to manage fall risk. Despite this, fall prevention is not a routine activity in general practice settings. The iSOLVE cluster randomised controlled trial aimed to evaluate implementation of a fall prevention decision tool in general practice. This paper sought to describe the strategies used and reflect on the enablers and barriers relevant to successful recruitment of general practices, GPs and their patients. METHODS: Recruitment was conducted within the geographical area of a Primary Health Network in Northern Sydney, Australia. General practices and GPs were engaged via online surveys, mailed invitations to participate, educational workshops, practitioner networks and promotional practice visits. Patients 65 years or older were recruited via mailed invitations, incorporating the practice letterhead and the name(s) of participating GP(s). Observations of recruitment strategies, results and enabling factors were recorded in field notes as descriptive and narrative data, and analysed using mixed-methods. RESULTS: It took 19 months to complete recruitment of 27 general practices, 75 GPs and 560 patients. The multiple strategies used to engage general practices and GPs were collectively useful in reaching the targeted sample size. Practice visits were valuable in engaging GPs and staff, establishing interest in fall prevention and commitment to the trial. A mix of small, medium and large practices were recruited. While some were recruited as a whole-practice, other practices had few or half of the number of GPs recruited. The importance of preventing falls in older patients, simplicity of research design, provision of resources and logistic facilitation of patient recruitment appealed to GPs. Recruitment of older patients was successfully achieved by mailed invitations which was a strategy that was familiar to practice staff and patients. Patient response rates were above the expected 10% for most practices. Many practices (n = 17) achieved the targeted number of 20 or more patients. CONCLUSIONS: Recruitment in general practice settings can be successfully achieved through multiple recruitment strategies, effective communication and rapport building, ensuring research topic and design suit general practice needs, and using familiar communication strategies to engage patients. TRIAL REGISTRATION: The trial was prospectively registered on 29 April 2015 with the Australian New Zealand Clinical Trial Registry www.anzctr.org.au (trial ID: ACTRN12615000401550).


Asunto(s)
Accidentes por Caídas/prevención & control , Técnicas de Apoyo para la Decisión , Medicina General , Selección de Paciente , Anciano , Anciano de 80 o más Años , Actitud del Personal de Salud , Australia , Análisis por Conglomerados , Femenino , Humanos , Masculino , Encuestas y Cuestionarios
14.
Clin Chem Lab Med ; 57(11): 1790-1798, 2019 Oct 25.
Artículo en Inglés | MEDLINE | ID: mdl-31085739

RESUMEN

Background Maternal vitamin B12 (B-12) adequacy is important for maternal health and optimal fetal growth. However, pregnancy-specific cut-offs for B-12 biomarkers are lacking. Methods Reference intervals for serum total B-12, holotranscobalamin (holoTC) and methylmalonic acid (MMA) concentrations were calculated following CLSI EP28-A3c guidelines in 723 pregnant women of European (50%) and South Asian (50%) ethnicity, residing in British Columbia, Canada, at median (range) 11.4 (8.3-13.9) and 16.1 (14.9-20.9) weeks of gestation. Change point analyses described relationships between log serum MMA concentration with serum total B-12 and holoTC concentrations, assuming linear-linear relationships. Results The central 95% reference interval limits indicated that serum total B-12 <89.9 and <84.0 pmol/L, holoTC <29.5 and <26.0 pmol/L and MMA >371 and >374 nmol/L, in the first and second trimesters, respectively, may indicate B-12 deficiency in pregnant women. The lower limits of total B-12 and holoTC and the upper limits of MMA significantly differed by ethnicity in both trimesters. According to the change point analysis, total B-12 <186 and <180 pmol/L and holoTC <62.2 and <67.5 pmol/L in the first and second trimesters, respectively, suggested an increased probability of impaired intracellular B-12 status, with no difference between ethnicities. Conclusions We present novel reference limits and change points for B-12 biomarkers, which may be employed to identify possible B-12 deficiency in women during early and mid-pregnancy. Future research is needed to validate these cut-offs and determine the predictors and functional outcomes associated with impaired B-12 status in ethnically diverse populations.


Asunto(s)
Biomarcadores/sangre , Ácido Metilmalónico/sangre , Transcobalaminas/metabolismo , Vitamina B 12/sangre , Adulto , Femenino , Humanos , Embarazo , Valores de Referencia , Adulto Joven
15.
Adv Health Sci Educ Theory Pract ; 24(1): 15-32, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30051154

RESUMEN

The use of patient educators is one of many teaching strategies meant to foster principles of patient-centred care. We previously found that early patient educator exposure helped to shape the understanding of patient-centredness in pre-clerkship learners. We now expand on this work to evaluate whether there is persistence of initial perceptions and to explore general reflections on longer-term impacts of early patient educator exposures once learners are immersed in the clinical phase of their training. In this follow-up study, we conducted group interviews with a sample of learners who wrote reflections as part of their pre-clerkship patient educator experience. We explored how perspectives on patient educators changed over time, and determined which themes identified during pre-clerkship remained relevant to clinical trainees. Audio recordings were transcribed and analyzed thematically using a hybrid inductive and deductive analysis to construct a thematic framework derived through a method of constant comparison. We identified three new themes: "value of early clinical experience", "change in learners' perspectives", and "valuing and applying CanMEDS roles other than Medical Expert". Themes from pre-clerkship that remained relevant included: "patients' perspective humanizes disease", "patients' experiences with navigating the healthcare system", "learners' perceptions of the learning strategy", and "inaccuracies and inconsistencies in the learning experience." Many themes identified in pre-clerkship learners remain relevant in early clinical trainees. Further, insights from pre-clerkship experiences with patient educators evolve as learners experience clerkship with definite shifts in emphasis and new perspectives. This work illuminates the utility of patient educators for those considering this strategy for supporting the development of patient-centredness in undergraduate medical education.


Asunto(s)
Educación de Pregrado en Medicina/organización & administración , Atención Dirigida al Paciente/organización & administración , Pacientes , Aprendizaje Basado en Problemas/organización & administración , Enseñanza/organización & administración , Actitud del Personal de Salud , Prácticas Clínicas/organización & administración , Humanos , Entrevistas como Asunto , Aprendizaje , Enfermedades Musculoesqueléticas/diagnóstico , Examen Físico/métodos , Relaciones Médico-Paciente , Investigación Cualitativa , Estudiantes de Medicina/psicología
16.
BMC Health Serv Res ; 18(1): 598, 2018 08 03.
Artículo en Inglés | MEDLINE | ID: mdl-30075774

RESUMEN

BACKGROUND: While there is strong evidence that fall prevention interventions can prevent falls in people aged 65 and over, translating evidence into routine practice is challenging. Research regarding how allied health professionals (AHPs) respond to this challenge is limited. As part of the Integrated Solutions for Sustainable Fall Prevention (iSOLVE) project, this study aimed to explore how AHPs were making fall prevention practice routine in primary care and the factors that influenced their fall prevention practice. METHODS: In-depth qualitative interviews were conducted with fifteen AHPs who had attended evidence-based workshops associated with the iSOLVE project. AHPs had backgrounds in physiotherapy, occupational therapy, exercise physiology and podiatry. Interviews explored how fall prevention was being incorporated into routine practice and the factors that influenced routinisation, including the project workshops. Thematic analysis was used to analyse the data. RESULTS: We found fall prevention was valued in practice and recognised as complex. AHPs worked through challenges relating to clients (multi-morbidity, complex living situations, client motivation), challenges working alongside other health professionals (understanding respective roles/overlapping roles, sense of competition, communication) and challenges associated with funding systems perceived as complicated and constantly changing. Despite these challenges, AHPs were adopting strategies for integrating fall prevention routinely. The iSOLVE workshops were perceived as important in supporting existing practice and in providing strategies to enhance practice. CONCLUSIONS: Policy makers, program managers, educators and AHPs can adopt strategies identified in this research for routinising fall prevention such as being alert that falls are common, asking every client about falls, having processes for assessing clients for fall risk, and having structured and evidence-based programs to work with clients on fall prevention. Adapting and streamlining funding systems are also important for facilitating fall prevention work.


Asunto(s)
Accidentes por Caídas/prevención & control , Técnicos Medios en Salud , Atención Primaria de Salud , Anciano , Comunicación , Conductas Relacionadas con la Salud , Humanos , Entrevistas como Asunto , Terapeutas Ocupacionales , Fisioterapeutas
17.
Can Fam Physician ; 64(4): e190-e198, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29650621

RESUMEN

OBJECTIVE: To identify barriers to and enablers of advance care planning (ACP) perceived by physicians and other health professionals in primary care. DESIGN: Cross-sectional, self-administered survey. SETTING: Ontario, Alberta, and British Columbia. PARTICIPANTS: Family physicians (n = 117) and other health professionals (n = 64) in primary care. MAIN OUTCOME MEASURES: Perceived barriers relating to the clinician, characteristics of patients, and system factors, rated on a 7-point scale from 0 (not at all) to 6 (an extreme amount), and enablers reported using an open-ended question. RESULTS: Between November 2014 and June 2015, questionnaires were returned by 72.2% (117 of 162) of family physicians and 68.8% (64 of 93) of the other health professionals. Physicians rated insufficient time, inability to electronically transfer the advance care plan across care settings, decreased interaction with patients near the end of life owing to transfer of care, and patients' difficulty understanding limitations and complications of treatment options as the highest barriers. Other health professionals additionally identified their own lack of knowledge and difficulty accessing the physician as barriers. Themes identified as enablers included greater public engagement, clinician attitudes, creating capacity for clinicians, integrating ACP into practice, and system and policy supports. CONCLUSION: In primary care, there are barriers to engaging patients in ACP at the patient, provider, and system levels that could potentially be addressed through the informed development of multifaceted interventions.


Asunto(s)
Planificación Anticipada de Atención , Barreras de Comunicación , Conocimientos, Actitudes y Práctica en Salud , Adulto , Canadá , Estudios Transversales , Femenino , Personal de Salud/psicología , Humanos , Masculino , Persona de Mediana Edad , Médicos de Familia/psicología , Atención Primaria de Salud , Encuestas y Cuestionarios
18.
Can Fam Physician ; 64(5): 371-377, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29760260

RESUMEN

OBJECTIVE: To assess primary care patients' engagement in advance care planning (ACP) and predictors of engagement. DESIGN: Cross-sectional survey using a revised version of a validated questionnaire. SETTING: Alberta, Ontario, and British Columbia. PARTICIPANTS: Convenience sample of 20 family practices that provided a consecutive sample of 810 patients aged 50 years and older. MAIN OUTCOME MEASURES: Engagement in ACP activities, and sociodemographic and health-related predictors of having engaged in ACP activities. RESULTS: Patients had a mean age of 66 years (55.6% women). Two-thirds of patients (68.5%; 555) had thought about the kinds of medical treatments they would want or not want if they were sick and in hospital, 52.8% (n = 428) had talked with someone about what they would want, 32.0% (n = 259) had written down their wishes, 50.4% (n = 408) had named someone to be their substitute decision maker, and 23.0% (n = 186) had engaged in all 4 key ACP activities. Of those patients who had talked to someone about medical treatments wanted or not, 17.5% (n = 75) had talked to their family doctors. Age (adjusted odds ratio per 10-year category of 1.55; 95% CI 1.26 to 1.90; P < .001) was significantly associated with having engaged in all ACP activities. CONCLUSION: Many patients have engaged in some ACP activities, but few have discussed ACP with their family physicians. Strategies should be implemented in primary care to reduce the barriers to discussing ACP.


Asunto(s)
Planificación Anticipada de Atención/organización & administración , Medicina Familiar y Comunitaria/métodos , Grupo de Atención al Paciente/organización & administración , Participación del Paciente , Anciano , Anciano de 80 o más Años , Canadá , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Relaciones Médico-Paciente , Calidad de Vida , Encuestas y Cuestionarios
19.
Liver Transpl ; 23(5): 663-678, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-28240807

RESUMEN

It is well recognized that solid organ transplantation can transmit bacterial infection and chronic viral hepatitis as well as certain cancers. As indications for liver transplantation (LT) have expanded, it has been used to treat and even cure certain genetic cholestatic disorders, urea cycle defects, and coagulation abnormalities; many of these conditions are potentially transmissible with LT as well. It is important for clinicians and transplant patients to be aware of these potentially transmissible conditions as unexplained post-LT complications can sometimes be related to donor transmission of disease and thus should prompt a thorough exploration of the donor allograft history. Herein, we will review the reported genetic, metabolic, hematologic, and immunological disorders that are transmissible with LT and describe clinical scenarios in which these cases have occurred, such as in inadvertent or recognized transplantation of a diseased organ, domino transplantation, and with living related liver donation. Liver Transplantation 23 663-678 2017 AASLD.


Asunto(s)
Hepatopatías/etiología , Trasplante de Hígado/efectos adversos , Humanos
20.
Postgrad Med J ; 93(1100): 333-337, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27733673

RESUMEN

BACKGROUND: Increasing prevalence of inflammatory bowel disease (IBD) poses significant challenges to medical community. Preventive medicine, including vaccination against opportunistic infections, is important in decreasing morbidity and mortality in patients with IBD. We conduct first study to evaluate general awareness and adherence to immunisation guidelines by primary care physicians in the USA. METHODS: We administered an electronic questionnaire to the research panel of the American College of Physicians (ACP) assessing current vaccination practices, barriers to vaccination and provider responsibility for administering vaccinations and compared responses with the European Crohn's and Colitis Organization consensus guidelines and expert opinion from the USA. RESULTS: All of surveyed physicians (276) had experience with patients with IBD and spent majority of their time in direct patient care. 49% of physicians took immunisation history frequently or always, and 76% reported never or rarely checking immunisation antibody titres with only 2% doing so routinely. 65% of physicians believed that primary care providers (PCPs) were responsible for determining patient's immunisation. Vaccine administration was felt to be the duty of primary care doctor 80% of the time. 2.5% of physicians correctly recommended vaccinations all the time. Physicians were more likely to recommend vaccination to immunocompetent than immunocompromised patients. Up to 23% of physicians would incorrectly recommend live vaccine to immunocompromised patients with IBD. CONCLUSIONS: Current knowledge and degree of comfort among PCPs in the USA in preventing opportunistic infections in IBD population remain low. Management of patients with IBD requires structured approach to their healthcare maintenance in everyday practice, including enhanced educational policy aimed at primary care physicians.


Asunto(s)
Enfermedades Inflamatorias del Intestino/epidemiología , Pautas de la Práctica en Medicina/estadística & datos numéricos , Atención Primaria de Salud , Vacunación , Adhesión a Directriz , Conocimientos, Actitudes y Práctica en Salud , Humanos , Huésped Inmunocomprometido , Pronóstico , Encuestas y Cuestionarios , Estados Unidos/epidemiología
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