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RESULTS.: Hispanic children have higher odds of growth stunting than non-Hispanic White children. Native American children die younger and have higher odds of respiratory diseases and porous lesions than Hispanic and non-Hispanic Whites. Rural/urban location does not significantly impact age at death, but housing type does. Individuals who lived in trailers/mobile homes had earlier ages at death. When intersections between housing type and housing location are considered, children who were poor and from impoverished areas lived longer than those who were poor from relatively well-off areas. CONCLUSIONS.: Children's health is shaped by factors outside their control. The children included in this study embodied experiences of social and ELS and did not survive to adulthood. They provide the most sobering example of the harm that social factors (structural racism/discrimination, socioeconomic, and political structures) can inflict.
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INTRODUCTION: Identifying patients who can be safely managed in lower-level trauma centers is critical to avoid overburdening level I centers. This study examines the transfer patterns and outcomes of blunt splenic injury (BSI) patients cared for at 2 regional level III trauma centers as compared to an associated level I center. METHODS: A retrospective cohort study was conducted including all trauma patients with BSI admitted to 2 level III trauma centers (TC3) and a level I center (TC1) between 2012 and 2022. Patients were broken into 3 categories: TC1, TC3, and transfer patients (transferred from TC3 to TC1). RESULTS: A total of 1480 patients were admitted to TC1, 208 patients to TC3, and 128 were transferred. 22.7% of transfer patients were children. No difference in splenic injury grade was seen between patients managed at TC1 and TC3. Patients presenting to TC1 had more severe concomitant injuries. Patients underwent urgent splenectomy at similar rates at TC1 and TC3 (15.1 vs 18.7%, P = .1). Successful nonoperative management was achieved at similar rates (81.3 vs 75.5%, P = .1). When controlling for ISS and ED disposition, there was no significant difference in length of stay (LOS), ICU LOS, and inpatient mortality between TC1 and TC3. CONCLUSION: Level III centers effectively managed BSI achieving comparable outcomes to the level 1 center. Transfers commonly occurred in pediatric and multisystem trauma patients, though high-grade splenic injuries were not predictive of transfer. High-grade BSI can be safely managed at level III centers without need for transfer.
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OBJECTIVE: To synthesise evidence of the effectiveness of community based complex interventions, grouped according to their intervention components, to sustain independence for older people. DESIGN: Systematic review and network meta-analysis. DATA SOURCES: Medline, Embase, CINAHL, PsycINFO, CENTRAL, clinicaltrials.gov, and International Clinical Trials Registry Platform from inception to 9 August 2021 and reference lists of included studies. ELIGIBILITY CRITERIA: Randomised controlled trials or cluster randomised controlled trials with ≥24 weeks' follow-up studying community based complex interventions for sustaining independence in older people (mean age ≥65 years) living at home, with usual care, placebo, or another complex intervention as comparators. MAIN OUTCOMES: Living at home, activities of daily living (personal/instrumental), care home placement, and service/economic outcomes at 12 months. DATA SYNTHESIS: Interventions were grouped according to a specifically developed typology. Random effects network meta-analysis estimated comparative effects; Cochrane's revised tool (RoB 2) structured risk of bias assessment. Grading of recommendations assessment, development and evaluation (GRADE) network meta-analysis structured certainty assessment. RESULTS: The review included 129 studies (74 946 participants). Nineteen intervention components, including "multifactorial action from individualised care planning" (a process of multidomain assessment and management leading to tailored actions), were identified in 63 combinations. For living at home, compared with no intervention/placebo, evidence favoured multifactorial action from individualised care planning including medication review and regular follow-ups (routine review) (odds ratio 1.22, 95% confidence interval 0.93 to 1.59; moderate certainty); multifactorial action from individualised care planning including medication review without regular follow-ups (2.55, 0.61 to 10.60; low certainty); combined cognitive training, medication review, nutritional support, and exercise (1.93, 0.79 to 4.77; low certainty); and combined activities of daily living training, nutritional support, and exercise (1.79, 0.67 to 4.76; low certainty). Risk screening or the addition of education and self-management strategies to multifactorial action from individualised care planning and routine review with medication review may reduce odds of living at home. For instrumental activities of daily living, evidence favoured multifactorial action from individualised care planning and routine review with medication review (standardised mean difference 0.11, 95% confidence interval 0.00 to 0.21; moderate certainty). Two interventions may reduce instrumental activities of daily living: combined activities of daily living training, aids, and exercise; and combined activities of daily living training, aids, education, exercise, and multifactorial action from individualised care planning and routine review with medication review and self-management strategies. For personal activities of daily living, evidence favoured combined exercise, multifactorial action from individualised care planning, and routine review with medication review and self-management strategies (0.16, -0.51 to 0.82; low certainty). For homecare recipients, evidence favoured addition of multifactorial action from individualised care planning and routine review with medication review (0.60, 0.32 to 0.88; low certainty). High risk of bias and imprecise estimates meant that most evidence was low or very low certainty. Few studies contributed to each comparison, impeding evaluation of inconsistency and frailty. CONCLUSIONS: The intervention most likely to sustain independence is individualised care planning including medicines optimisation and regular follow-up reviews resulting in multifactorial action. Homecare recipients may particularly benefit from this intervention. Unexpectedly, some combinations may reduce independence. Further research is needed to investigate which combinations of interventions work best for different participants and contexts. REGISTRATION: PROSPERO CRD42019162195.
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Actividades Cotidianas , Vida Independiente , Metaanálisis en Red , Humanos , Anciano , Ensayos Clínicos Controlados Aleatorios como Asunto , Servicios de Atención de Salud a Domicilio/organización & administración , Servicios de Salud Comunitaria/organización & administración , Anciano de 80 o más AñosRESUMEN
In modern practice viral parotitis is unlikely to be due to mumps. Case and surveillance studies have detected a host of other viruses in mumps-negative viral parotitis, but because of their weak association with viral parotitis, it has been difficult to establish causality. This case report is unique because a familial pair presented in tandem with different manifestations of an infection with the parainfluenza virus. These circumstances allowed the strong association of the parainfluenza virus with the mother's croup to be substituted for the normally weak association of the parainfluenza virus with the son's viral parotitis. This strongly inferred that the parainfluenza virus caused the patient's viral parotitis and provides the best evidence to date of a virus other than mumps causing viral parotitis.
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Previous work has demonstrated the importance of the prelimbic cortex (PL) in contextual control of operant behavior. However, the associated neural circuitry responsible for providing contextual information to the PL is not well understood. In Pavlovian fear conditioning the ventral hippocampus (vH) and its projection to the PL have been shown to be important in supporting the effects of context on learning. The present experiments used chemogenetic inhibition of the direct vH-PL projection or the vH to determine involvement in expression of context-specific operant behavior. Rats were injected with an inhibitory DREADD (hM4Di) or mCherry-only into the vH, and subsequently trained to perform a lever press response for a food pellet in a distinct context. The DREADD ligand clozapine-n-oxide (CNO) was then delivered directly into the PL (experiment 1) and then systemically (experiment 2) prior to tests of the response in the training context as well as an equally familiar but untrained context. vH (systemic CNO) but not vH-PL (intra-PL CNO) inhibition was found to attenuate operant responding in its acquisition context. A third experiment, using the same rats, showed that chemogenetic inhibition of vH also reduced Pavlovian contextual fear. The present results suggest that multisynapatic connections between the vH and PL may be responsible for integration of contextual information with operant behavior.
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Splitting fertilizer nitrogen (N) applications and using cover crops are management strategies to reduce nitrate in tile drainage water. We investigated split fertilizer N applications to corn (Zea mays L.) on crop yields and tile nitrate loss in both corn and soybean (Glycine max L.) in rotation from 2016 through 2019. We evaluated the inclusion of cover crops in a split-N treatment. Fertilizer N treatments included 100% in the fall; 50% in the fall + 25% at planting + 25% at side-dress; 100% as spring preplant; 75% as spring preplant (reduced N rate); 50% as spring preplant + 50% at side-dress; and 50% as spring preplant + 50% at side-dress with a cover crop. We did not find significant differences between split and single full rate N application treatments for corn yields or tile nitrate loss; however, the reduced N rate treatment significantly decreased corn yield by 10%. Cumulative tile nitrate losses (over four seasons) ranged from 115 kg ha-1 for all of the N in the fall to 65 kg ha-1 for 50% as spring preplant + 50% at side-dress with a cover crop, a decrease of 43%. Tile nitrate loss responded similarly to (corn) N treatments under both corn and soybean, with 64% of the loss under corn and 36% under soybean. Our results suggest that decreasing the fertilizer N rate may impact corn yield more than nitrate loss, while split fertilizer N application with a cover crop has potential to reduce tile nitrate loss without decreasing crop yield.
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Glycine max , Zea mays , Nitratos/análisis , Agricultura/métodos , Secale , Fertilizantes/análisis , Grano Comestible/química , Nitrógeno/análisis , Productos Agrícolas , SueloRESUMEN
PURPOSE: Persistent pain is common in older people and people living with frailty. Pain or the impact of pain on everyday life is potentially modifiable. We sought to map research evidence and information from randomised controlled trials (RCTs) of pain management programmes and psychological therapies targeting community-dwelling older people, and explore appropriate strategies and interventions for managing or reducing the negative impact of pain for older people, particularly those with frailty. METHOD: A mapping review of pain management programmes and psychological therapies for community-dwelling older people living with chronic pain. We searched for systematic reviews of randomised controlled trials and for individual randomised controlled trials and extracted data from eligible studies. RESULTS: Searches resulted in 3419 systematic review records and 746 RCT records from which there were 33 eligible interventions identified in 31 eligible RCTs (48 reports). Broad aims of the interventions were to: improve physical, psychological, or social functioning; adjust the effects or sensation of pain psychologically; enhance self-care with self-management skills or knowledge. Common mechanisms of change proposed were self-efficacy enhanced by self-management tasks and skills, using positive psychological skills or refocusing attention to improve responses to pain, and practising physical exercises to improve physiological well-being and reduce restrictions from pain. Content of interventions included: skills training and activity management, education, and physical exercise. Interventions were delivered in person or remotely to individuals or in groups, typically in 1-2 sessions weekly over 5-12 weeks. CONCLUSION: All the evaluated interventions appeared to show potential to provide some benefits to older people. None of the included studies assessed frailty. However, some of the included interventions appear appropriate for community-dwelling older people living with both frailty and pain.
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Dolor Crónico , Fragilidad , Humanos , Anciano , Manejo del Dolor , Vida Independiente , Revisiones Sistemáticas como Asunto , Dolor Crónico/terapia , Dolor Crónico/psicologíaRESUMEN
BACKGROUND: Over the last two decades, the acute management of rib fractures has changed significantly. In 2021, the Chest Wall injury Society (CWIS) began recognizing centers that epitomize their mission as CWIS Collaborative Centers. The primary aim of this study was to determine the resources, surgical expertise, access to care, and institutional support that are present among centers. METHODS: A survey was performed including all CWIS Collaborative Centers evaluating the resources available at their hospital for the treatment of patients with chest wall injury. Data about each chest wall injury center care process, availability of resources, institutional support, research support, and educational offerings were recorded. RESULTS: Data were collected from 20 trauma centers resulting in an 80% response rate. These trauma centers were made up of 5 international and 15 US-based trauma centers. Eighty percent (16 of 20) have dedicated care team members for the evaluation and management of rib fractures. Twenty-five percent (5 of 20) have a dedicated rib fracture service with a separate call schedule. Staffing for chest wall injury clinics consists of a multidisciplinary team: with attending surgeons in all clinics, 80% (8 of 10) with advanced practice providers and 70% (7 of 10) with care coordinators. Forty percent (8 of 20) of centers have dedicated rib fracture research support, and 35% (7 of 20) have surgical stabilization of rib fracture (SSRF)-related grants. Forty percent (8 of 20) of centers have marketing support, and 30% (8 of 20) have a web page support to bring awareness to their center. At these trauma centers, a median of 4 (1-9) surgeons perform SSRFs. In the majority of trauma centers, the trauma surgeons perform SSRF. CONCLUSION: Considerable similarities and differences exist within these CWIS collaborative centers. These differences in resources are hypothesis generating in determining the optimal chest wall injury center. These findings may generate several patient care and team process questions to optimize patient care, patient experience, provider satisfaction, research productivity, education, and outreach. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level V.
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Fracturas de las Costillas , Traumatismos Torácicos , Pared Torácica , Humanos , Fracturas de las Costillas/cirugía , Pared Torácica/cirugía , Atención al Paciente , Encuestas y Cuestionarios , Estudios RetrospectivosRESUMEN
Early surgical stabilization of rib fracture (SSRF) improves outcomes in patients with flail physiology and severely displaced fractures. We present two cases of patients with severe chest injury and large flail segment who underwent SSRF while on veno-venous extracorporeal membrane oxygenation (VV-ECMO). The patients developed respiratory failure within 24 hours of admission requiring VV-ECMO. The extent of their chest wall injury limited pulmonary mechanics prohibiting transition off VV-ECMO. Therefore, SSRF was performed on hospital days 2 and 3 and while on VV-ECMO support. Stabilizing the chest wall allowed for improved ventilation and successful decannulation from VV-ECMO on postoperative days 3 and 4. Ultimately, both achieved a functional recovery and were discharged home. These cases demonstrate a unique thoracic damage control strategy wherein SSRF is performed while on VV-ECMO. Improving chest stability and pulmonary mechanics with SSRF allowed for safe transition off VV-ECMO and achieved a favorable long-term outcome.
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Oxigenación por Membrana Extracorpórea , Tórax Paradójico , Fracturas de las Costillas , Traumatismos Torácicos , Heridas no Penetrantes , Humanos , Fracturas de las Costillas/complicaciones , Fracturas de las Costillas/cirugía , Heridas no Penetrantes/complicaciones , Heridas no Penetrantes/cirugía , Tórax Paradójico/etiología , Tórax Paradójico/cirugía , Estudios RetrospectivosRESUMEN
BACKGROUND: Instability after reverse shoulder arthroplasty (RSA) is one of the most frequent complications and remains a clinical challenge. Current evidence is limited by small sample size, single-center, or single-implant methodologies that limit generalizability. We sought to determine the incidence and patient-related risk factors for dislocation after RSA, using a large, multicenter cohort with varying implants. METHODS: A retrospective, multicenter study was performed involving 15 institutions and 24 American Shoulder and Elbow Surgeons members across the United States. Inclusion criteria consisted of patients undergoing primary or revision RSA between January 2013 and June 2019 with minimum 3-month follow-up. All definitions, inclusion criteria, and collected variables were determined using the Delphi method, an iterative survey process involving all primary investigators requiring at least 75% consensus to be considered a final component of the methodology for each study element. Dislocations were defined as complete loss of articulation between the humeral component and the glenosphere and required radiographic confirmation. Binary logistic regression was performed to determine patient predictors of postoperative dislocation after RSA. RESULTS: We identified 6621 patients who met inclusion criteria with a mean follow-up of 19.4 months (range: 3-84 months). The study population was 40% male with an average age of 71.0 years (range: 23-101 years). The rate of dislocation was 2.1% (n = 138) for the whole cohort, 1.6% (n = 99) for primary RSAs, and 6.5% (n = 39) for revision RSAs (P < .001). Dislocations occurred at a median of 7.0 weeks (interquartile range: 3.0-36.0 weeks) after surgery with 23.0% (n = 32) after a trauma. Patients with a primary diagnosis of glenohumeral osteoarthritis with an intact rotator cuff had an overall lower rate of dislocation than patients with other diagnoses (0.8% vs. 2.5%; P < .001). Patient-related factors independently predictive of dislocation, in order of the magnitude of effect, were a history of postoperative subluxations before radiographically confirmed dislocation (odds ratio [OR]: 19.52, P < .001), primary diagnosis of fracture nonunion (OR: 6.53, P < .001), revision arthroplasty (OR: 5.61, P < .001), primary diagnosis of rotator cuff disease (OR: 2.64, P < .001), male sex (OR: 2.21, P < .001), and no subscapularis repair at surgery (OR: 1.95, P = .001). CONCLUSION: The strongest patient-related factors associated with dislocation were a history of postoperative subluxations and having a primary diagnosis of fracture nonunion. Notably, RSAs for osteoarthritis showed lower rates of dislocations than RSAs for rotator cuff disease. These data can be used to optimize patient counseling before RSA, particularly in male patients undergoing revision RSA.
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Artroplastía de Reemplazo de Hombro , Luxaciones Articulares , Osteoartritis , Articulación del Hombro , Humanos , Masculino , Anciano , Femenino , Artroplastía de Reemplazo de Hombro/efectos adversos , Artroplastía de Reemplazo de Hombro/métodos , Articulación del Hombro/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Osteoartritis/cirugía , Luxaciones Articulares/cirugía , Rango del Movimiento ArticularRESUMEN
The Amphibian Metamorphosis Assay (AMA) is used to determine if a tested chemical has potential to impact the hypothalamic-pituitary-thyroid (HPT) axis of Xenopus laevis tadpoles, while the Fish Short Term Reproduction Assay (FSTRA) assesses potential effects on the hypothalamic-pituitary-gonadal (HPG) axis of fish such as the fathead minnow (Pimephales promelas). Several global regulatory programs routinely require these internationally validated tests be performed to determine the potential endocrine activity of chemicals. As such, they are conducted in accordance with standardized protocols and test criteria, which were originally developed more than a decade ago. Sizeable numbers of AMA and FSTRA studies have since been carried out, which allows for the mining of extensive historical control data (HCD). Such data are useful for investigating the existence of outlier results and aberrant control groups, identifying potential confounding variables, providing context for rare diagnoses, discriminating target from non-target effects, and for refining current testing paradigms. The present paper provides histopathology HCD from 55 AMA studies and 45 fathead minnow FSTRA studies, so that these data may become publicly available and thus aid in the interpretation of future study outcomes. Histopathology is a key endpoint in these assays, in which it is considered to be one of the most sensitive indicators of endocrine perturbation. In the current review, granular explorations of HCD data were used to identify background lesions, to assess the utility of particular diagnostic findings for distinguishing endocrine from non-endocrine effects, and to help determine if specific improvements to established regulatory guidance may be warranted. Knowledge gleaned from this investigation, supplemented by information from other recent studies, provided further context for the interpretation of AMA and FSTRA histopathology results. We recommend HCDs for the AMA and FSTRA be maintained to support the interpretation of study results.
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Cyprinidae , Contaminantes Químicos del Agua , Animales , Contaminantes Químicos del Agua/toxicidad , Reproducción , Sistema Endocrino , AnfibiosRESUMEN
Our recent research suggests that the interoceptive state associated with stress can function as a contextual stimulus for operant behavior. In the present experiment, we investigated the role of the rodent prelimbic cortex (PL), a brain region that is critical in contextual control of operant behavior, in the ability of a stressed state to produce ABA renewal of an extinguished operant response. Rats were trained to perform a lever press response for a food pellet reward during daily sessions that followed exposure to a stressor that changed each day. The response was then extinguished in the absence of stress. ABA renewal of extinguished responding occurred following exposure to another stressor (different from any used during acquisition) in control rats but not in rats that received a PL-inactivating infusion (baclofen/muscimol). Results confirm that the interoceptive state of stress can play the role of a contextual stimulus and initiate renewal (relapse) of an inhibited behavior when stress has previously been associated with the behavior. In conjunction with our previous work, the present results support the hypothesis that the PL is important for contexts, both exteroceptive and interoceptive, to exert such control over operant behavior. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Condicionamiento Operante , Extinción Psicológica , Ratas , Animales , Condicionamiento Operante/fisiología , Extinción Psicológica/fisiología , Muscimol/farmacología , Baclofeno/farmacología , Recompensa , Corteza Prefrontal/fisiologíaRESUMEN
OBJECTIVE: Evaluate patients with intertrochanteric fractures who were treated operatively to determine optimal follow-up to ensure complete fracture healing and recognize complications. DESIGN: Retrospective review. SETTING: Academic Level 1 trauma center. PATIENTS/PARTICIPANTS: Inclusion criteria included isolated intertroch fractures (not pathologic) and complete radiographic and clinical data, with at least 1-year follow-up. Four hundred ninety-seven patients were identified. Two hundred forty-nine patients met inclusion criteria with 194 patients studied. INTERVENTION: Operative fixation with either CMN or SHS. MAIN OUTCOME MEASUREMENTS: Radiographic parameters included time to union, neck-shaft angle, tip apex distance, and femoral neck screw telescoping (shortening) for both CMS and SHS combined. Postoperative complications were recorded. RESULTS: Union was achieved at a mean of 64.8 ± 30.7 days. Mortality (n = 12), infection (n = 4), and implant failure (n = 5) occurred within 3 months. Neck-shaft angle was changed before 3 months. Significant neck shortening for both CMN and SHS occurred within 6 weeks ( P =<0.001). Major complications occurred early, within 3 months. CONCLUSIONS: Most fractures healed by 3 months and the remainder by 6 months. Routine follow-up for 6 months is more than sufficient for most of these fractures. LEVEL OF EVIDENCE: Diagnostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Fijación Intramedular de Fracturas , Fracturas de Cadera , Humanos , Anciano , Estudios de Seguimiento , Resultado del Tratamiento , Fijación Interna de Fracturas , Fracturas de Cadera/diagnóstico por imagen , Fracturas de Cadera/cirugía , Cuello Femoral , Estudios RetrospectivosRESUMEN
BACKGROUND: Both patient and implant related variables have been implicated in the incidence of acromial (ASF) and scapular spine fractures (SSF) following reverse shoulder arthroplasty (RSA); however, previous studies have not characterized nor differentiated risk profiles for varying indications including primary glenohumeral arthritis with intact rotator cuff (GHOA), rotator cuff arthropathy (CTA), and massive irreparable rotator cuff tear (MCT). The purpose of this study was to determine patient factors predictive of cumulative ASF/SSF risk for varying preoperative diagnosis and rotator cuff status. METHODS: Patients consecutively receiving RSA between January 2013 and June 2019 from 15 institutions comprising 24 members of the American Shoulder and Elbow Surgeons (ASES) with primary, preoperative diagnoses of GHOA, CTA and MCT were included for study. Inclusion criteria, definitions, and inclusion of patient factors in a multivariate model to predict cumulative risk of ASF/SSF were determined through an iterative Delphi process. The CTA and MCT groups were combined for analysis. Consensus was defined as greater than 75% agreement amongst contributors. Only ASF/SSF confirmed by clinical and radiographic correlation were included for analysis. RESULTS: Our study cohort included 4764 patients with preoperative diagnoses of GHOA, CTA, or MCT with minimum follow-up of 3 months (range: 3-84). The incidence of cumulative stress fracture was 4.1% (n = 196). The incidence of stress fracture in the GHOA cohort was 2.1% (n = 34/1637) compared to 5.2% (n = 162/3127) (P < .001) in the CTA/MCT cohort. Presence of inflammatory arthritis (odds ratio [OR] 2.90, 95% confidence interval [CI] 1.08-7.78; P = .035) was the sole predictive factor of stress fractures in GHOA, compared with inflammatory arthritis (OR 1.86, 95% CI 1.19-2.89; P = .016), female sex (OR 1.81, 95% CI 1.20-2.72; P = .007), and osteoporosis (OR 1.56, 95% CI 1.02-2.37; P = .003) in the CTA/MCT cohort. CONCLUSION: Preoperative diagnosis of GHOA has a different risk profile for developing stress fractures after RSA than patients with CTA/MCT. Though rotator cuff integrity is likely protective against ASF/SSF, approximately 1/46 patients receiving RSA with primary GHOA will have this complication, primarily influenced by a history of inflammatory arthritis. Understanding risk profiles of patients undergoing RSA by varying diagnosis is important in counseling, expectation management, and treatment by surgeons.
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Artritis , Artroplastía de Reemplazo de Hombro , Fracturas por Estrés , Lesiones del Manguito de los Rotadores , Articulación del Hombro , Femenino , Humanos , Artritis/cirugía , Artroplastía de Reemplazo de Hombro/efectos adversos , Fracturas por Estrés/diagnóstico por imagen , Fracturas por Estrés/etiología , Rango del Movimiento Articular , Estudios Retrospectivos , Factores de Riesgo , Lesiones del Manguito de los Rotadores/complicaciones , Lesiones del Manguito de los Rotadores/diagnóstico por imagen , Lesiones del Manguito de los Rotadores/cirugía , Escápula/diagnóstico por imagen , Escápula/cirugía , Articulación del Hombro/diagnóstico por imagen , Articulación del Hombro/cirugía , Resultado del Tratamiento , MasculinoRESUMEN
Light sheet microscopy has developed quickly over the past decades and become a popular method for imaging live model organisms and other thick biological tissues. For rapid volumetric imaging, an electrically tunable lens can be used to rapidly change the imaging plane in the sample. For larger fields of view and higher NA objectives, the electrically tunable lens introduces aberrations in the system, particularly away from the nominal focus and off-axis. Here, we describe a system that employs an electrically tunable lens and adaptive optics to image over a volume of 499 × 499 × 192 µm3 with close to diffraction-limited resolution. Compared to the system without adaptive optics, the performance shows an increase in signal to background ratio by a factor of 3.5. While the system currently requires 7s/volume, it should be straightforward to increase the imaging speed to under 1s per volume.
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We have previously shown that the rat prelimbic cortex (PL) is necessary for contexts to promote the performance of instrumental behaviors that have been learned in them, whether the context is physical (operant chamber) or behavioral (recent performance of a behavior that has historically preceded the target in a behavior chain). In the present experiment, we investigated the role of the PL in satiety level as an interoceptive acquisition context. Rats were trained to lever-press for sweet/fat pellets while sated (22 hrs continuous food access) followed by the extinction of the response while hungry (22 hrs food deprived). Pharmacological inactivation of the PL (with baclofen/muscimol infusion) attenuated renewal of the response that occurred upon a return to the sated context. In contrast, animals that received a vehicle (saline) infusion showed renewal of the previously extinguished response. These results support the hypothesis that the PL monitors the relevant contextual elements (physical, behavioral, or satiety state) associated with reinforcement of a response and promotes the subsequent performance of that response in their presence.
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Condicionamiento Operante , Extinción Psicológica , Ratas , Animales , Condicionamiento Operante/fisiología , Extinción Psicológica/fisiología , Corteza Prefrontal/fisiología , Refuerzo en Psicología , Muscimol/farmacologíaRESUMEN
BACKGROUND: Studies on predictors of outcomes of treatment for common mental health disorders (CMDs) in community mental health settings are scarce, and sample sizes are often small. Research on the impact of identifying as a member of an ethnic minority group on treatment outcomes is limited. AIMS: To ascertain whether ethnicity is an independent predictor of outcome and the extent to which any association is mediated by other sociodemographic factors. METHOD: Retrospective observational study of anonymised treatment data collected for routine clinical purposes. Data were analysed from nine Improving Access to Psychological Therapy (IAPT) services from 2009 to 2016. Social functioning, ethnic group, age, gender, occupation and baseline severity of the mental health disorder were analysed as predictors of outcome. RESULTS: Outcomes varied with ethnic group. Levels of occupation, social deprivation, initial morbidity and social functioning varied between ethnic groups at baseline. After adjustment for these factors the impact of ethnicity was attenuated and only some ethnic groups remained as significant independent predictors of treatment outcome. CONCLUSIONS: Ethnic minority status is a marker for multiple disadvantages. Some of the differences in outcome seen between ethnic groups may be the result of more general factors present in all ethnic groups but at greater intensity in some ethnic minority groups.
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Depresión , Etnicidad , Humanos , Etnicidad/psicología , Depresión/terapia , Estudios Retrospectivos , Grupos Minoritarios , Ansiedad/terapia , Estudios de CohortesRESUMEN
Obstruction of the duodenum by an abdominal aortic aneurysm (AAA) (aortoduodenal syndrome) has rarely been reported. It presents with symptoms of upper gastrointestinal (GI) tract obstruction. Obstructive jaundice caused by an AAA is also extremely rare and requires high clinical suspicion. We present a unique case with informed consent of an elderly gentleman who presented with both rare presentations over a course of few months. After extensive literature search, we have found case reports of patients showing either of the two unusual presentations, but none were found to show them together.
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Aneurisma de la Aorta Abdominal , Obstrucción Duodenal , Ictericia Obstructiva , Humanos , Anciano , Obstrucción Duodenal/diagnóstico por imagen , Obstrucción Duodenal/etiología , Ictericia Obstructiva/etiología , Ictericia Obstructiva/complicaciones , Aneurisma de la Aorta Abdominal/complicaciones , Aneurisma de la Aorta Abdominal/diagnóstico por imagen , SíndromeRESUMEN
BACKGROUND: Resuscitative thoracotomy and clamshell thoracotomy are performed in the setting of traumatic arrest with the intent of controlling hemorrhage, relieving tamponade, and providing open chest cardiopulmonary resuscitation. Historically, return of spontaneous circulation rates for penetrating traumatic arrest as well as out of hospital survival have been reported as low as 40% and 10%. Vascular access can be challenging in patients who have undergone a traumatic arrest and can be a limiting step to effective resuscitation. Atrial cannulation is a well-established surgical technique in cardiac surgery. Herein, we present a case series detailing our application of this technique in the context of acute trauma resuscitation during clamshell thoracotomy for traumatic arrest in the emergency department. METHODS: A retrospective case series of atrial cannulation during traumatic arrest was conducted in Charlotte, NC at Carolinas Medical Center an urban level 1 trauma center. RESULTS: The mean rate of return of spontaneous circulation in our series, 60%, was greater than previously published upper limit of return of spontaneous circulation for penetrating causes of traumatic arrest. DISCUSSION: Intravenous access can be difficult to establish in the hypovolemic and exsanguinating patient. Traditional methods of vascular access may be insufficient in the setting of central vascular injury. Atrial appendage cannulation during atrial cannulation is a quick and reliable technique to achieve vascular access that employs common methods from cardiac surgery to improve resuscitation of traumatic arrest.