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1.
JPRAS Open ; 37: 9-23, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37288429

RESUMEN

Background: Collection of patient-reported outcome (PRO) data can facilitate cost-effective, evidence-based, and patient-centered care. The BREAST-Q has become the gold standard tool to measure PRO data in breast surgery. The last review of its application indicated that it was underutilized. Considering the evolution in breast surgery, the purpose of this study was to perform a scoping review of BREAST-Q application since 2015 and identify emerging trends and potential persistent gaps to guide patient-centered practice and future research in breast surgery. Methods: We performed an electronic literature review to identify publications published in English that used the BREAST-Q to assess patient outcomes. We excluded validation studies, review papers, conference abstracts, discussions, comments, and/or responses to previously published papers. Results: We identified 270 studies that met our inclusion criteria. Specific data was extracted to examine the evolution of the BREAST-Q application and examine clinical trends and research gaps. Discussion: Despite a significant increase in BREAST-Q studies, gaps in the understanding of the patient experience remain. The BREAST-Q is uniquely designed to measure quality of life and satisfaction with outcome and care. The prospective collection of center-specific data for every type of breast surgery will generate important information for the provision of patient-centered and evidence-based care.

2.
Soc Sci Med ; 324: 115870, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-37012185

RESUMEN

Violence against women and girls (VAWG) is a human rights violation with substantial health-related consequences. Interventions to prevent VAWG, often implemented at the community level by volunteers, have been proven effective and cost-effective. One such intervention is the Rural Response System in Ghana, a volunteer-run program which hires community based action teams (COMBATs) to sensitise the community about VAWG and to provide counselling services in rural areas. To increase programmatic impact and maximise the retention of these volunteers, it is important to understand their preferences for incentives. We conducted a discrete choice experiment (DCE) among 107 COMBAT volunteers, in two Ghanaian districts in 2018, to examine their stated preferences for financial and non-financial incentives that could be offered in their roles. Each respondent answered 12 choice tasks, and each task comprised four hypothetical volunteering positions. The first three positions included different levels of five role attributes. The fourth option was to cease volunteering as a COMBAT volunteer (opt-out). We found that, overall, COMBAT volunteers cared most for receiving training in volunteering skills and three-monthly supervisions. These results were consistent between multinomial logit, and mixed multinomial logit models. A three-class latent class model fitted our data best, identifying subgroups of COMBAT workers with distinct preferences for incentives: The younger 'go getters'; older 'veterans', and the 'balanced bunch' encompassing the majority of the sample. The opt-out was chosen only 4 (0.3%) times. Only one other study quantitatively examined the preferences for incentives of VAWG-prevention volunteers using a DCE (Kasteng et al., 2016). Understanding preferences and how they vary between sub-groups can be leveraged by programme managers to improve volunteer motivation and retention. As effective VAWG-prevention programmes are scaled up from small pilots to the national level, data on volunteer preferences may be useful in improving volunteer retention.


Asunto(s)
Selección de Personal , Servicios de Salud Rural , Humanos , Femenino , Ghana , Motivación , Voluntarios
3.
Cancer Med ; 12(10): 11907-11914, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-37076968

RESUMEN

BACKGROUND: Patient navigation (P.N.) is designed to eliminate barriers to care. The objective of this study was to evaluate the impact of a novel P.N. program on timeliness of care in patients with esophageal cancer. METHODS: This retrospective study compared the timeliness of care for esophageal cancer patients before (January 2014-March 2018) and after the implementation of a novel P.N. program (April 2018-March 2020), called EDAP, at a tertiary care center. The primary outcome was time from biopsy to first treatment; secondary outcomes included time from biopsy to complete staging, biopsy to complete preoperative workup, and referral to the first point of contact. The outcomes were evaluated in the entire cohort and then in a subgroup of patients undergoing curative multimodality therapy. RESULTS: There were 96 patients in the pre-EDAP group and 98 patients in the post-EDAP group. There was no significant difference between pre- and post-EDAP in the time from biopsy to first treatment and time from biopsy to staging in the overall cohort. In the subgroup of patients undergoing curative multimodality therapy, there was a significant decrease in time from biopsy to first treatment postnavigation (60-51 days, p = 0.02), in addition to a significant decrease in time from biopsy to preoperative workup and time from biopsy to staging. CONCLUSIONS: This is the first study demonstrating that a novel P.N. program for patients with esophageal cancer improved timeliness of care. The group of patients who benefited most were those undergoing curative multimodality therapy, likely given the extensive coordination of services required by this group.


Asunto(s)
Adenocarcinoma , Neoplasias Esofágicas , Navegación de Pacientes , Humanos , Estudios Retrospectivos , Neoplasias Esofágicas/diagnóstico , Neoplasias Esofágicas/terapia , Neoplasias Esofágicas/patología , Biopsia , Adenocarcinoma/patología , Estadificación de Neoplasias
4.
Soc Sci Med ; 307: 115151, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35849962

RESUMEN

Understanding health worker job preferences can help policymakers better align incentives to retain a motivated workforce in the public sector. However, in stated preference choice modelling, health worker motivation to do their jobs has not been incorporated, perhaps surprisingly, as an important antecedent to health worker job choices. This paper is the first application of a hybrid choice model to measure the extent to which variations in the job preferences of community health workers (CHWs) can be explained by multidimensional motivation. We interviewed 202 CHWs in Ethiopia in 2019. Motivation was assessed quantitatively using a series of thirty questions, on a five-point Likert scale. Stated preferences for hypothetical jobs were captured using an unlabelled discrete choice experiment. We estimated three models and explored which best fitted choice data. We found that the hybrid choice model fitted better than simpler choice models and provides additional behavioural insight into the preferences of CHWs. Intrinsically motivated CHWs had strong disutility towards a higher than average salary, but preferred good facility quality and good health outcomes. On the contrary, CHWs who were assessed to be extrinsically motivated had disutility attached to a heavy workload and preferred higher than average salaries. We show a link between heterogeneity in the job preferences of CHWs and their motivation, demonstrating that its important for policy makers and managers to understand this link in order to get health workers to exert more effort in return for the right incentives and to retain a motivated workforce in the long run.


Asunto(s)
Agentes Comunitarios de Salud , Motivación , Etiopía , Humanos , Salarios y Beneficios , Recursos Humanos
5.
Health Econ ; 31(5): 806-819, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35178825

RESUMEN

When measuring preferences, discrete choice experiments (DCEs) typically assume that respondents consider all available information before making decisions. However, many respondents often only consider a subset of the choice characteristics, a heuristic called attribute non-attendance (ANA). Failure to account for ANA can bias DCE results, potentially leading to flawed policy recommendations. While conventional latent class logit models have most commonly been used to assess ANA in choices, these models are often not flexible enough to separate non-attendance from respondents' low valuation of certain attributes, resulting in inflated rates of ANA. In this paper, we show that semi-parametric mixtures of latent class models can be used to disentangle successfully inferred non-attendance from respondent's "weaker" taste sensitivities for certain attributes. In a DCE on the job preferences of health workers in Ethiopia, we demonstrate that such models provide more reliable estimates of inferred non-attendance than the alternative methods currently used. Moreover, since we find statistically significant variation in the rates of ANA exhibited by different health worker cadres, we highlight the need for well-defined attributes in a DCE, to ensure that ANA does not result from a weak experimental design.


Asunto(s)
Conducta de Elección , Gusto , Toma de Decisiones , Etiopía , Heurística , Humanos , Prioridad del Paciente , Encuestas y Cuestionarios
6.
Hum Resour Health ; 20(1): 20, 2022 02 19.
Artículo en Inglés | MEDLINE | ID: mdl-35183209

RESUMEN

BACKGROUND: The Health Extension Program (HEP) is Ethiopia's flagship community health program, launched in 2003. Health Extension Workers (HEWs) are key vehicles for the delivery of the HEP. While it is believed that there is high attrition among HEWs, the magnitude of or reasons for attrition is unknown. Their intention to leave their jobs in the next 5 years has also never been investigated on a national scale. This study aimed to assess the magnitude of, and factors affecting HEWs' attrition and intention to leave in Ethiopia. METHODS: The study used mixed methods to address the research objectives. Using stratified random sampling and regions as strata, 85 districts from nine regions were randomly selected in Ethiopia. Within each study district, six kebeles (village clusters) were randomly selected, and all HEWs working in these kebeles were interviewed to capture their 5-year intention to leave. The study team developed a data-extraction tool for a rapid review of district-level documents covering the period June 30, 2004 through June 30, 2019 to gather their attrition figures. We used survival analysis to model attrition data and checked model goodness-of-fit using the Cox-Snell residual test. We additionally collected qualitative data from HEWs who had left their positions. RESULTS: The attrition of HEWS over the lifespan of the HEP was 21.1% (95% CI 17.5-25.3%), and the median time to exit from HEWs workforce was 5.8 years. The incidence rate was 3.1% [95% CI 2.8-3.4]. The risk of attrition was lower amongst HEWs with level four certifications, with children, and among those working in urban settings. By contrast, HEWs who were not certified with a certificate of competency (COC), who were deployed after 2008, and those who were diploma/degree holders were more likely to exit the HEWs workforce. The magnitude of intention to leave was 39.5% (95% CI 32.5-47%) and the primary reasons to leave were low incentives, dearth of career development opportunities (50.8%), high workload (24.2%), and other psychosocial factors (25%). CONCLUSION: Although the magnitude of attrition is not worryingly high, we see high magnitude in HEWs' intention to leave, indicating a dissatisfied workforce. Multiple factors have contributed to attrition and intention to leave, the prevalence of many of which can be reduced to fit the needs of this workforce and to retain them for the sustained delivery of primary healthcare in the country. Ensuring HEWs' job satisfaction is important and linked with their career development and potentially higher rates of retention.


Asunto(s)
Agentes Comunitarios de Salud , Intención , Niño , Estudios Transversales , Etiopía , Fuerza Laboral en Salud , Humanos
8.
Health Policy Plan ; 36(9): 1418-1427, 2021 Oct 12.
Artículo en Inglés | MEDLINE | ID: mdl-34313307

RESUMEN

Attracting, training and retaining high-quality health workers are critical for a health system to function well, and it is important to know what health workers value in their roles. Many studies eliciting the labour market preferences of health workers have interviewed doctors or medical students, and there has been little research on the job preferences of lower-skilled cadres such as community health workers, mid-skilled clinical care staff such as nurses and midwives, or non-patient facing staff who manage health facilities. This study estimated the job preferences of public health sector community health extension workers (HEWs), care providers including nurses and midwives, and non-patient-facing administrative and managerial staff in Ethiopia. We used a discrete choice experiment to estimate which aspects of a job are most influential to health worker choices. A multinomial logistic regression model estimated the importance of six attributes to respondents: salary, training, workload, facility quality, management and opportunities to improve patient outcomes. We found that non-financial factors were important to respondents from all three cadres: e.g., supportive management [odds ratio (OR) = 2.96, P-value = 0.001] was the only attribute that influenced the job choices of non-patient-facing administrative and managerial staff. Training opportunities (OR = 3.45, P-value < 0.001), supportive management (OR = 3.26, P-value < 0.001) and good facility quality (OR = 2.42, P-value < 0.001) were valued the most amongst HEWs. Similarly, supportive management (OR = 3.22, P-value < 0.001), good facility quality (OR = 2.69, P-value < 0.001) and training opportunities (OR = 2.67, P-value < 0.001) influenced the job choices of care providers the most. Earning an average salary also influenced the jobs choices of HEWs (OR = 1.43, P-value = 0.02) and care providers (OR = 2.00, P-value < 0.001), which shows that a combination of financial and non-financial incentives should be considered to motivate health workers in Ethiopia.


Asunto(s)
Selección de Profesión , Motivación , Agentes Comunitarios de Salud , Etiopía , Humanos , Salarios y Beneficios
9.
BMJ Open ; 10(10): e037989, 2020 10 08.
Artículo en Inglés | MEDLINE | ID: mdl-33033092

RESUMEN

OBJECTIVES: The motivation and retention of community health workers (CHWs) is a challenge and inadequately addressed in research and policy. We sought to identify factors influencing the retention of CHWs in Ethiopia and ways to avert their exit. DESIGN: A qualitative study was undertaken using in-depth interviews with the study participants. Interviews were audio-recorded, and then simultaneously translated into English and transcribed for analysis. Data were analysed in NVivo 12 using an iterative inductive-deductive approach. SETTING: The study was conducted in two districts each in the Tigray and Southern Nations, Nationalities and People's Republic (SNNPR) regions in Ethiopia. Respondents were located in a mix of rural and urban settings. PARTICIPANTS: Leavers of health extension worker (HEW) positions (n=20), active HEWs (n=16) and key informants (n=11) in the form of policymakers were interviewed. RESULTS: We identified several extrinsic and intrinsic motivational factors affecting the retention and labour market choices of HEWs. While financial incentives in the form of salaries and material incentives in the form of improvements to health facility infrastructure, provision of childcare were reported to be important, non-material factors like HEWs' self-image, acceptance and validation by the community and their supervisors were found to be critical. A reduction or loss of these non-material factors proved to be the catalyst for many HEWs to leave their jobs. CONCLUSION: Our study contributes new empirical evidence to the global debate on factors influencing the motivation and retention of CHWs, by being the first to include job leavers in the analysis. Our findings suggest that policy interventions that appeal to the social needs of CHWs can prove to be more acceptable and potentially cost-effective in improving their retention in the long run. This is important for government policymakers in resource constrained settings like Ethiopia that rely heavily on lay workers for primary healthcare delivery.


Asunto(s)
Agentes Comunitarios de Salud , Pobreza , Etiopía , Femenino , Humanos , Masculino , Motivación , Reorganización del Personal , Investigación Cualitativa
10.
Br J Anaesth ; 125(3): 346-357, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32611524

RESUMEN

BACKGROUND: The prevalence and intensity of persistent post-surgical pain (PPSP) after breast cancer surgery are uncertain. We conducted a systematic review and meta-analysis to further elucidate this issue. METHODS: We searched MEDLINE, Embase, CINAHL, and PsycINFO, from inception to November 2018, for observational studies reporting persistent pain (≥3 months) after breast cancer surgery. We used random-effects meta-analysis and the Grading of Recommendations, Assessment, Development and Evaluations approach to rate quality of evidence. RESULTS: We included 187 observational studies with 297 612 breast cancer patients. The prevalence of PPSP ranged from 2% to 78%, median 37% (inter-quartile range: 22-48%); the pooled prevalence was 35% (95% confidence interval [CI]: 32-39%). The pooled pain intensity was 3.9 cm on a 10 cm visual analogue scale (95% CI: 3.6-4.2 cm). Moderate-quality evidence supported the subgroup effects of PPSP prevalence for localized pain vs any pain (29% vs 44%), moderate or greater vs any pain (26% vs 44%), clinician-assessed vs patient-reported pain (23% vs 36%), and whether patients underwent sentinel lymph node biopsy vs axillary lymph node dissection (26% vs 43%). The adjusted analysis found that the prevalence of patient-reported PPSP (any severity/location) was 46% (95% CI: 36-56%), and the prevalence of patient-reported moderate-to-severe PPSP at any location was 27% (95% CI: 10-43%). CONCLUSIONS: Moderate-quality evidence suggests that almost half of all women undergoing breast cancer surgery develop persistent post-surgical pain, and about one in four develop moderate-to-severe persistent post-surgical pain; the higher prevalence was associated with axillary lymph node dissection. Future studies should explore whether nerve sparing for axillary procedures reduces persistent post-surgical pain after breast cancer surgery.


Asunto(s)
Neoplasias de la Mama/cirugía , Dolor Crónico/epidemiología , Estudios Observacionales como Asunto , Dolor Postoperatorio/epidemiología , Neoplasias de la Mama/epidemiología , Femenino , Humanos , Prevalencia , Índice de Severidad de la Enfermedad
11.
Health Policy ; 124(4): 345-358, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-32115252

RESUMEN

Physician payment models are perceived to be an important strategy for improving health, access, quality, and the value of health care. Evidence is predominantly from primary care, and little is known regarding whether specialists respond similarly. We conducted a systematic review to synthesize evidence on the impact of specialist physician payment models across the domains of health care quality; clinical outcomes; utilization, access, and costs; and patient and physician satisfaction. We searched Medline, Embase, and six other databases from their inception through October 2018. Eligible articles addressed specialist physicians, payment models, outcomes of interest, and used an experimental or quasi-experimental design. Of 11,648 studies reviewed for eligibility, 11 articles reporting on seven payment reforms were included. Fee-for-service (FFS) was associated with increased desired utilization and fewer adverse outcomes (in the case of hemodialysis patients) and better access to care (in the case of emergency department services). Replacing FFS with capitation and salary models led to fewer elective surgical procedures (cataracts and tubal ligations) and, with an episode-based model, appeared to increase the use of less costly resources. Four of the seven reforms met their goals but many had unintended consequences. Payment model appears to affect utilization of specialty care, although the association with other outcomes is unclear due to mixed results or lack of evidence. Studies of salary and salary-based reforms point to specialists responding to some incentives differently than theory would predict. Additional research is warranted to improve the evidence driving specialist payment policy.


Asunto(s)
Planes de Aranceles por Servicios , Médicos , Humanos , Atención Primaria de Salud , Calidad de la Atención de Salud , Salarios y Beneficios
12.
J Interpers Violence ; 35(21-22): 5028-5063, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-29294828

RESUMEN

Gender-based violence (GBV) is a global epidemic associated with increased HIV exposure. We assessed the prevalence and correlates of HIV acquisition via forced sex among women living with HIV (WLWH) in Canada. Baseline questionnaire data were analyzed for WLWH (≥16 years) with data on self-reported mode of HIV acquisition, enrolled in a community-based cohort study in British Columbia, Ontario, and Québec. We assessed forced sex (childhood, adulthood) as a self-reported mode of HIV acquisition. Of 1,330 participants, the median age was 42 (interquartile range [IQR] = 35-50) years; 23.5% were Indigenous, 26.3% African/Caribbean/Black, 43% White, and 7.2% of Other ethnicities. Forced sex was the third dominant mode of HIV transmission at 16.5% (n = 219; vs. 51.6% consensual sex, 19.7% sharing needles, 5.3% blood transfusion, 3.8% perinatal, 1.3% contaminated needles, 0.4% other, 1.6% do not know/prefer not to answer). In multivariable analyses, significant correlates of HIV acquisition from forced versus consensual sex included legal status as a landed immigrant (adjusted odds ratio [aOR] = 1.99; 95% confidence interval [CI] = [1.12, 3.54]) or refugee (aOR = 3.62; 95% CI = [1.63, 8.04]) versus Canadian citizen; African/Caribbean/Black ethnicity versus Caucasian (aOR = 2.49; 95% CI = [1.43, 4.35]), posttraumatic stress disorder symptoms (aOR = 3.00; 95% CI = [1.68, 5.38]), histories of group home residence (aOR = 2.40; 95% CI = [1.10, 5.23]), foster care (aOR = 2.18; 95% CI = [1.10, 4.34]), and having one child relative to having three or more children (aOR = 0.52; 95% CI = [0.31, 0.89]). GBV must be considered a distinct HIV risk factor; forced sex is a significant underrecognized risk factor and mode of women's HIV acquistion. Public health reporting systems can separate consensual and forced sex in reporting modes of HIV acquisition. Practitioners can engage in screening practices to meet client needs.


Asunto(s)
Infecciones por VIH , Adulto , Colombia Británica , Canadá , Niño , Estudios de Cohortes , Femenino , Infecciones por VIH/epidemiología , Humanos , Persona de Mediana Edad , Ontario , Prevalencia , Quebec , Autoinforme
14.
Cureus ; 10(9): e3387, 2018 Sep 29.
Artículo en Inglés | MEDLINE | ID: mdl-30524915

RESUMEN

PURPOSE: Serous adenocarcinoma is a rare, aggressive histologic subtype of endometrial cancer with a high rate of recurrence and a poor prognosis. The optimal adjuvant treatment for early-stage patients is unclear. Our objective was to evaluate the outcomes of stage IA serous endometrial cancers only treated at a single institution and determine whether our current approach of chemotherapy plus vaginal brachytherapy (VBT) is sufficient. METHODS: A retrospective chart review of our institution's pathology database, including all cases of stage IA serous endometrial carcinoma from 2000-2014 was completed. Kaplan-Meier estimates were calculated for Overall and Recurrence-Free Survival (OS and RFS); hazard ratios were calculated using Cox proportional hazards modeling for independent prognostic factors. RESULTS: There were 63 patients with stage IA serous endometrial cancer of whom 79.4% were surgically staged. Percent RFS was 76.5% at five years while OS was 84.7% for the whole cohort. One of the 23 patients receiving VBT and chemotherapy recurred at the vagina versus four of 32 patients who were observed. Two patients in the observation group recurred in the pelvis while there were no first pelvic recurrences in the VBT and chemotherapy group (non- significant). Overall survival was 95% in the brachytherapy and chemotherapy group versus 79.6% in the observation group (non-significant). Post-operative management included observation (n=33), combination VBT and chemotherapy (n=21), or chemotherapy with or without external beam radiation therapy (EBRT) (n=9). DISCUSSION: We report one of the largest cohorts of serous endometrial cancer stage IA patients. Our results emphasize the inferior RFS and OS of stage IA serous versus endometrioid endometrial cancer patients. While some centers continue to use EBRT for these patients, our results demonstrate low pelvic recurrence rates with radiotherapy limited to VBT, as well as the high systemic risk regardless of treatment. We advocate for combination chemotherapy and brachytherapy given the poor outcomes in these patients.

15.
Sex Med Rev ; 5(3): 266-274, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28238679

RESUMEN

INTRODUCTION: Female sexual dysfunction (FSD), consisting of a constellation of distressing sexual symptoms, is highly prevalent worldwide. Given the central role played by psychological factors in the development of FSD, psychologically and in particular mindfulness-based interventions have arisen as potential treatment options for women. Although mindfulness-based interventions have been evaluated in samples of women with gynecologic cancer; a history of sexual abuse; multiple sclerosis; and spinal cord injury; and provoked vestibulodynia, the mechanisms by which mindfulness leads to improvements in sexual functioning are largely unstudied. AIM: To summarize the literature on mechanisms of mindfulness interventions in general and to hypothesize which mechanisms most likely apply to samples of women with FSD. METHODS: Medline was searched with terms such as mindfulness, meditation, mediator, mode, moderator, mechanism, sex, and sexual dysfunction. Only studies that conducted a formal mediation or moderation analysis were included. We also conducted a broader review on mechanisms in other populations, with slightly modified inclusion criteria: the terms sex and sexual dysfunction were removed and only studies from 2012 to 2016 and studies that included an active mindfulness intervention were included. MAIN OUTCOME MEASURES AND RESULTS: In general populations, trait mindfulness and decentering were the most common mechanisms identified for the efficacy of mindfulness. In four studies that examined mediators of improvement in samples with FSD, the following mediators were found to be significant: relationship satisfaction, genital self-image, interoceptive awareness, depressed mood, anxiety, and trait mindfulness, of which interoceptive awareness had the most supporting evidence. CONCLUSION: Clinicians and researchers can use the identified mediators of improvement (ie, interoceptive awareness, depression, and trait mindfulness) when making decisions about which patient might be more likely to benefit from a mindfulness-based approach to treating sexual dysfunction. Future work should examine these mediators and other putative mediators and moderators in randomized controlled trials of mindfulness. Arora N, Brotto LA. How Does Paying Attention Improve Sexual Functioning in Women? A Review of Mechanisms. Sex Med Rev 2017;5:266-274.


Asunto(s)
Atención , Atención Plena , Disfunciones Sexuales Fisiológicas/terapia , Sexualidad , Mujeres/psicología , Femenino , Humanos , Disfunciones Sexuales Fisiológicas/psicología
16.
J Neurosci ; 36(49): 12448-12467, 2016 12 07.
Artículo en Inglés | MEDLINE | ID: mdl-27927961

RESUMEN

The need to breathe links the mammalian olfactory system inextricably to the respiratory rhythms that draw air through the nose. In rodents and other small animals, slow oscillations of local field potential activity are driven at the rate of breathing (∼2-12 Hz) in olfactory bulb and cortex, and faster oscillatory bursts are coupled to specific phases of the respiratory cycle. These dynamic rhythms are thought to regulate cortical excitability and coordinate network interactions, helping to shape olfactory coding, memory, and behavior. However, while respiratory oscillations are a ubiquitous hallmark of olfactory system function in animals, direct evidence for such patterns is lacking in humans. In this study, we acquired intracranial EEG data from rare patients (Ps) with medically refractory epilepsy, enabling us to test the hypothesis that cortical oscillatory activity would be entrained to the human respiratory cycle, albeit at the much slower rhythm of ∼0.16-0.33 Hz. Our results reveal that natural breathing synchronizes electrical activity in human piriform (olfactory) cortex, as well as in limbic-related brain areas, including amygdala and hippocampus. Notably, oscillatory power peaked during inspiration and dissipated when breathing was diverted from nose to mouth. Parallel behavioral experiments showed that breathing phase enhances fear discrimination and memory retrieval. Our findings provide a unique framework for understanding the pivotal role of nasal breathing in coordinating neuronal oscillations to support stimulus processing and behavior. SIGNIFICANCE STATEMENT: Animal studies have long shown that olfactory oscillatory activity emerges in line with the natural rhythm of breathing, even in the absence of an odor stimulus. Whether the breathing cycle induces cortical oscillations in the human brain is poorly understood. In this study, we collected intracranial EEG data from rare patients with medically intractable epilepsy, and found evidence for respiratory entrainment of local field potential activity in human piriform cortex, amygdala, and hippocampus. These effects diminished when breathing was diverted to the mouth, highlighting the importance of nasal airflow for generating respiratory oscillations. Finally, behavioral data in healthy subjects suggest that breathing phase systematically influences cognitive tasks related to amygdala and hippocampal functions.


Asunto(s)
Cognición/fisiología , Sistema Límbico/fisiología , Cavidad Nasal/fisiología , Mecánica Respiratoria/fisiología , Adulto , Amígdala del Cerebelo/fisiología , Niño , Discriminación en Psicología/fisiología , Electroencefalografía , Epilepsia/fisiopatología , Miedo/psicología , Femenino , Hipocampo/fisiología , Humanos , Masculino , Recuerdo Mental/fisiología , Persona de Mediana Edad , Corteza Olfatoria/fisiología , Desempeño Psicomotor/fisiología , Reconocimiento en Psicología , Adulto Joven
17.
Can J Psychiatry ; 61(12): 758-765, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27310244

RESUMEN

OBJECTIVE: Although antidepressants and antipsychotics are valuable medications in the treatment of select psychiatric disorders, there is increasing focus on the balance of risks and benefits of these drugs as prescribed, particularly in the pediatric population. We examined recent national trends and interprovincial variation in dispensing of antipsychotic and antidepressant prescriptions to the Canadian pediatric population. METHOD: We conducted a population-based cross-sectional study of antidepressant and antipsychotic prescriptions dispensed by Canadian pharmacies to the pediatric population (≤18 years) between 2010 and 2013. Prescription volumes were obtained from IMS Health. Analysis was stratified by drug, year, quarter, and province and population-standardized using age-adjusted population estimates. RESULTS: From the first quarter of 2010 to the fourth quarter of 2013, dispensing of antipsychotics to the pediatric population increased 33% (from 34 to 45 prescriptions per 1000) and dispensing of antidepressants increased 63% (from 34 to 55 per 1000). We observed a 1.5-fold interprovincial difference in dispensing rates for antidepressants (range: 189 per 1000 to 275 per 1000) and a 3.0-fold difference for antipsychotics (range: 85 per 1000 to 253 per 1000) in 2013. Among antidepressants, selective serotonin reuptake inhibitors were the most dispensed (76%), with fluoxetine being the leading agent. Among antipsychotics, atypical antipsychotics were the most dispensed (97%), with risperidone being the leading agent. CONCLUSIONS: Antipsychotic and antidepressant dispensing to the Canadian pediatric population increased from 2010 to 2013, with considerable interprovincial variation. Future research is required to explore reasons for observed patterns to optimize care for the Canadian pediatric population.


Asunto(s)
Antidepresivos/uso terapéutico , Antipsicóticos/uso terapéutico , Prescripciones de Medicamentos/estadística & datos numéricos , Farmacias/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Adolescente , Canadá , Niño , Estudios Transversales , Humanos , Pautas de la Práctica en Medicina/tendencias
18.
PLoS One ; 10(11): e0141222, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26540159

RESUMEN

BACKGROUND: The child protection community is increasingly focused on developing tools to assess threats to child protection and the basic security needs and rights of children and families living in adverse circumstances. Although tremendous advances have been made to improve measurement of individual child health status or household functioning for use in low-resource settings, little attention has been paid to a more diverse array of settings in which many children in adversity spend time and how context contributes to threats to child protection. The SAFE model posits that insecurity in any of the following fundamental domains threatens security in the others: Safety/freedom from harm; Access to basic physiological needs and healthcare; Family and connection to others; Education and economic security. Site-level tools are needed in order to monitor the conditions that can dramatically undermine or support healthy child growth, development and emotional and behavioral health. From refugee camps and orphanages to schools and housing complexes, site-level threats exist that are not well captured by commonly used measures of child health and well-being or assessments of single households (e.g., SDQ, HOME). METHODS: The present study presents a methodology and the development of a scale for assessing site-level child protection threats in various settings of adversity. A modified Delphi panel process was enhanced with two stages of expert review in core content areas as well as review by experts in instrument development, and field pilot testing. RESULTS: Field testing in two diverse sites in India-a construction site and a railway station-revealed that the resulting SAFE instrument was sensitive to the differences between the sites from the standpoint of core child protection issues.


Asunto(s)
Servicios de Protección Infantil , Lista de Verificación , Niño , Servicios de Protección Infantil/métodos , Servicios de Protección Infantil/estadística & datos numéricos , Industria de la Construcción , Técnica Delphi , Humanos , India , Vías Férreas , Seguridad/normas
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