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Presentation A 44 year old, grandmultiparous woman was reviewed in the early pregnancy clinic for a history indicated early reassurance ultrasound. Diagnosis Early pregnancy ultrasound findings were suggestive of a tubal ectopic pregnancy. A diagnostic laparoscopy and uterine curettage were both negative. A subsequent transvaginal ultrasound confirmed a non-viable interstitial ectopic pregnancy. Treatment Conservative management was employed as she remained haemodynamically stable with reducing serum ßhCG. Following ten weeks, her serum ßhCG normalised and she was discharged. Discussion IEP poses diagnostic and management complexities. Delayed diagnosis leads to elevated risks. Management options include surgical (laparotomy, uterine wedge resection) and non-surgical approaches (medical and conservative). Earlier diagnosis of smaller, stable cases facilitates medical management, while non-viable cases can be conservatively managed. This case emphasizes the importance of prompt recognition and tailored interventions to enhance patient outcomes.
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Embarazo Intersticial , Humanos , Femenino , Embarazo , Embarazo Intersticial/diagnóstico , Embarazo Intersticial/terapia , Embarazo Intersticial/cirugía , Embarazo Intersticial/diagnóstico por imagen , Adulto , Embarazo Ectópico/diagnóstico , Embarazo Ectópico/terapiaRESUMEN
Sleep loss increases AMPA-synaptic strength and number in the neocortex. However, this is only part of the synaptic sleep loss response. We report increased AMPA/NMDA EPSC ratio in frontal-cortical pyramidal neurons of layers 2-3. Silent synapses are absent, decreasing the plastic potential to convert silent NMDA to active AMPA synapses. These sleep loss changes are recovered by sleep. Sleep genes are enriched for synaptic shaping cellular components controlling glutamate synapse phenotype, overlap with autism risk genes and are primarily observed in excitatory pyramidal neurons projecting intra-telencephalically. These genes are enriched with genes controlled by the transcription factor, MEF2c and its repressor, HDAC4. Thus, sleep genes under the influence of MEF2c and HDAC4, can provide a framework within which motor learning and training occurs mediated by sleep-dependent oscillation of glutamate-synaptic phenotypes.
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Purpose: To compare arthroscopic visualization with intraoperative fluoroscopy for confirming proper femoral button placement during ACLR. Methods: Fifty consecutive patients undergoing soft-tissue ACLR between March 2021 and February 2022 were evaluated for inclusion in this study. Both primary and revision ACLR cases using suspensory fixation were included. Surgeons rated their confidence of proper button placement from both an intra-articular perspective (through the femoral tunnel) and an extra-articular perspective (through the iliotibial band) by grading confidence with a Likert scale. Fluoroscopy was also performed for confirmation of proper button placement. Results: Fifty consecutive patients (35.1 ± 14.5 years of age) with soft-tissue ACLR were included. Mean surgeon Likert confidence scores for accurate button placement were as follows: 4.1 of 5 ± 0.9 from an intra-articular perspective, 4.6 of 5 ± 0.7 from an extra-articular perspective, and 8.7 of 10 ± 1.4 based on the sum of intra- and extra-articular perspectives. Fluoroscopic findings demonstrated that 48 of 50 cases had an appropriate flipped button on the lateral cortex of the femur. I total, 2 of 50 had soft-tissue interposition. Cases in which surgeons had high confidence from both intra- and extra-articular perspectives (≥9/10 sum score) were indicative of proper button placement 97% of the time. Conclusions: Arthroscopic visualization is a reliable method of confirming femoral button placement during ACLR and is sufficient to rule out intraoperative fluoroscopy during surgery. ACLR cases with high surgeon confidence from both intra- and extra-articular perspectives (sum score of 9 or greater out of 10) resulted in proper femoral button placement in 97% of cases as confirmed by intraoperative fluoroscopy. Level of Evidence: Level II, prospective cohort study.
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OBJECTIVES: To understand the role and future implications of social distancing on mental health and substance use in young adults between the ages of 18 and 35 living in high-disease-prevalent areas of New York. METHODS: Participants completed a self-administered online survey through Qualtrics. RESULTS: 43.9% of the sample met criteria for moderate or severe anxiety, and 53.1% of the sample met criteria for moderate to severe depression. 76.1% of the sample experienced both anxiety and depressive symptoms. Despite this, the rates of lifetime mental health diagnoses, treatment, and access to mental health services were low. Rates of depression and anxiety differed across socio-demographic variables (gender, income, sexuality, education, and insurance status). Experiencing severe symptoms of the COVID-19 virus, poor coping skills, loneliness, increased alcohol use, and sleep disturbances were linked to higher rates of depression, anxiety, or both. CONCLUSION: As the first epicenter of COVID-19 in the United States, New York represents an important location for prevention researchers to learn about how COVID-19 affected a diverse population of young adults. It is essential that researchers and practitioners proactively develop early and appropriate interventions to address the ongoing mental health crisis and also plan for future crises.
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COVID-19 , Humanos , Adulto Joven , Adolescente , Adulto , COVID-19/epidemiología , Distanciamiento Físico , Aprendizaje , Brotes de Enfermedades , Evaluación de Resultado en la Atención de SaludRESUMEN
We bring together insights from the sociology of diagnosis and the sociology of ignorance to examine the early diagnostic unfolding of 'Long COVID' (LC). Originally described by patient activists, researchers set out to ponder its unwieldy clinical boundaries. Using a scoping review method in tandem with qualitative content analytic techniques, we analyse medicine's initial struggles to construct a LC diagnosis. Paying attention to the dynamics of ignorance, we highlight three consequential conceptual manoeuvres in the early classifications of LC: causal agnosticism concerning the relationship between COVID-19 and LC, evasion of lumping LC with similar conditions; and the predictable splitting off of medically explainable cases from the LC designation. These manoeuvres are not maleficent, inept or unreasonable. They are practical but impactful responses to the classificatory dilemmas present in the construction of diagnoses amidst ignorance. Although there are unique aspects to LC, we suggest that its early fate is nevertheless emblematic of medicine's diagnostic standardisation processes more generally. To varying degrees, diagnoses are ignorance management strategies; they create a pathway through the uncertainty at the core of disease realities. However, while diagnoses circumscribe some types of ignorance, they produce others through the creation of blind spots and paths not taken.
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This systematic review assessed peer-reviewed research studies on mortality rates of the homeless population within the United States. Extrapolated data included definitions of homelessness, mortality data sources, findings on mortality rates, and causes of premature mortality. Results demonstrate that individuals experiencing homelessness die earlier than comparison groups not experiencing homelessness. Methodology and findings varied across studies. Subpopulations included veterans, families, youth, and unsheltered. Causes of death varied across subpopulations and changed over time. Top causes of death, predominantly determined by ICD codes, stemmed from neoplasms, heart disease, and substance use disorder. Sources used for mortality data included the National Death Index (NDI), the Social Security Death Index (SSDI), state death occurrence files, and city vital statistics. Important research foci include standardization, subpopulation variations, policy implications, and the influence of mortality risk factors, such as poverty and racism.
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Personas con Mala Vivienda , Trastornos Relacionados con Sustancias , Veteranos , Adolescente , Humanos , Factores de Riesgo , Problemas Sociales , Trastornos Relacionados con Sustancias/epidemiología , Estados Unidos/epidemiologíaRESUMEN
OBJECTIVE: To apply the iceberg model, quantifying absolute and relative incidence, to the four main causes of maternal morbidity and mortality in Ireland: haemorrhage, hypertension, sepsis and thrombosis. DESIGN: Secondary analysis of national data on maternal morbidity and mortality. SETTING: Republic of Ireland. POPULATION OR SAMPLE: Approximately 715 000 maternities, 1 200 000 maternal hospitalisations, 2138 cases of severe maternal morbidity (SMM) and 54 maternal deaths. METHODS: Incidence rates and case-fatality ratios were calculated. MAIN OUTCOME MEASURES: Maternal death, SMM and hospitalisation. RESULTS: At the 'tip of the iceberg', the incidence of maternal death per 10 000 maternities was 0.09 (95% CI 0.03-0.20) due to thrombosis and 0.03 (95% CI 0-0.11) due to haemorrhage, hypertension disorders or sepsis. For one death due to thrombosis there were 35 cases of pulmonary embolism and 257 thrombosis hospitalisations. For one death due to eclampsia, there were 58 eclampsia cases, 13 040 hospitalisations with pre-existing hypertension and 40 781 hospitalisations with gestational hypertension. For one death due to pregnancy-related sepsis, there were 92 cases of septicaemic shock and 9005 hospitalisations with obstetric sepsis. For one maternal death due to haemorrhage, there were 1029 cases of major obstetric haemorrhage and 53 715 maternal hospitalisations with haemorrhage. For every 100 maternities, there were approximately 16 hospitalisations associated with haemorrhage, 12 associated with hypertension disorders, three with sepsis and 0.2 with thrombosis. CONCLUSIONS: Haemorrhage and hypertension disorders are leading causes of maternal morbidity in Ireland but they have very low case fatality. This indicates that these morbidities are managed effectively but their prevention requires more focus. TWEETABLE ABSTRACT: Study shows that haemorrhage and hypertension are main causes of #maternalmorbidity in Ireland. Timely interventions for #maternalhealth and focus on prevention of severe and non-severe morbidities are needed. @NPEC #maternityservices #clinicalaudit #qualityimprovement.
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Hospitalización/estadística & datos numéricos , Hemorragia Posparto/mortalidad , Complicaciones del Embarazo/mortalidad , Sepsis/mortalidad , Trombosis/mortalidad , Adulto , Femenino , Humanos , Incidencia , Irlanda/epidemiología , Muerte Materna/etiología , Mortalidad Materna , Morbilidad , EmbarazoRESUMEN
The sudden increase in alcohol use in the young adult population during the COVID-19 pandemic may be partially explained by social isolation and stress due to restricted stay-at-home orders. The goal of this study was to assess specific psychological factors (e.g., anxiety, depressive symptoms, sleep disturbances, and alcohol cravings) and COVID-19 diagnoses and their association with increased alcohol use and misuse during the COVID-19 pandemic among New York residents 18-35 years of age. Survey data were collected via Qualtrics between July 2020-October 2020. Path analyses tests were employed to test alcohol use cravings as a mediator. Among the total sample (N=575), mean age was 27.94±4.12; a majority were White non-Hispanic (66%), female (55%) and had completed a 4-year college or university degree (n = 249; 43.5%). Results revealed that alcohol use cravings was a significant mediator between sleep disturbances, having a COVID-19 diagnoses, and having mental health symptoms on increased alcohol use. Our findings underscore the importance of providing alcohol use prevention and treatment resources in this unprecedented COVID-19 era. Policymakers, public health professionals, and clinicians have a significant role in curbing the COVID-19-induced substance use epidemic.
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After years of emphasis on pre-migration trauma as the major determinant of refugee mental health, researchers have begun to explore the effects of post-migration stressors on refugees' distress. However, few studies have brought together refugees' emic understandings of the effects of economic stressors on their mental health with quantitative datasets to further explore the salience of stress processes as an explanatory mechanism. In qualitative interviews, 40% of 290 recently resettled adult refugees noted that economic stressors were a major source of distress and described pathways through which these stressors negatively influenced their mental health by limiting their ability to learn English, obtain meaningful employment, access healthcare, maintain contact with their families, and integrate in their communities. In structural equation modeling of quantitative data, we tested several possible hypotheses that emerged from the qualitative findings. We find that post-migration economic stressors mediated the relationship between migration-related trauma and post-migration emotional distress and PTSD symptoms. These findings provide empirical support for stress proliferation as a mechanism through which trauma exposure contributes to distress.
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Folic acid is a nutrient essential for embryonic development. Folate deficiency can cause embryonic lethality or neural tube defects and orofacial anomalies. Folate receptor 1 (Folr1) is a folate binding protein that facilitates the cellular uptake of dietary folate. To better understand the biological processes affected by folate deficiency, gene expression profiles of gestational day 9.5 (gd9.5) Folr1-/- embryos were compared to those of gd9.5 Folr1+/+ embryos. The expression of 837 genes/ESTs was found to be differentially altered in Folr1-/- embryos, relative to those observed in wild-type embryos. The 837 differentially expressed genes were subjected to Ingenuity Pathway Analysis. Among the major biological functions affected in Folr1-/- mice were those related to 'digestive system development/function', 'cardiovascular system development/function', 'tissue development', 'cellular development', and 'cell growth and differentiation', while the major canonical pathways affected were those associated with blood coagulation, embryonic stem cell transcription and cardiomyocyte differentiation (via BMP receptors). Cellular proliferation, apoptosis and migration were all significantly affected in the Folr1-/- embryos. Cranial neural crest cells (NCCs) and neural tube explants, grown under folate-deficient conditions, exhibited marked reduction in directed migration that can be attributed, in part, to an altered cytoskeleton caused by perturbations in F-actin formation and/or assembly. The present study revealed that several developmentally relevant biological processes were compromised in Folr1-/- embryos.
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Diferenciación Celular , Embrión de Mamíferos/metabolismo , Receptor 1 de Folato/fisiología , Ácido Fólico/metabolismo , Regulación del Desarrollo de la Expresión Génica , Cresta Neural/metabolismo , Defectos del Tubo Neural/patología , Animales , Embrión de Mamíferos/citología , Femenino , Perfilación de la Expresión Génica , Edad Gestacional , Masculino , Ratones , Ratones Endogámicos C57BL , Ratones Noqueados , Cresta Neural/patología , Defectos del Tubo Neural/genética , Defectos del Tubo Neural/metabolismoRESUMEN
PURPOSE: To prospectively observe opioid consumption in patients undergoing knee arthroscopy and to create an evidence-based guideline for opioid prescription. METHODS: This prospective multicenter observational study enrolled patients undergoing outpatient knee arthroscopy for meniscal repair, meniscectomy, or chondroplasty. Patients were provided with a pain journal to record postoperative opioid consumption, Numeric Pain Rating Scale (NPRS) pain scores, and Likert scale satisfaction scores for 1 week postoperatively. State databases were reviewed for additional opioid prescriptions. RESULTS: One hundred patients were included in this study. Patients were prescribed a median of 5 pills (37.5 oral morphine equivalent [OME]). Median postoperative opioid consumption was 0 pills, with a mean of 0.6 pills (4.4 OME), and 74% of patients did not consume any opioid medication postoperatively. All patients consumed ≤5 pills (37.5 OME), and no patient required a refill. Patients reported a mean daily NPRS value of 1.9 out of 10 and a mean Likert score of 4.4 out of 5. CONCLUSION: We found that current opioid prescribing habits exceed the need for postoperative pain management. Overall, all patients consumed ≤5 opioid pills, and 92% of patients discontinued opioids by the second postoperative day. In spite of the low prescription quantity, patients reported high satisfaction rates and low NPRS pain scores and required no refills. Therefore, we recommend that patients undergoing knee arthroscopy are prescribed no more than 5 oxycodone 5-mg pills. LEVEL OF EVIDENCE: II, prospective prognostic cohort investigation.
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Analgésicos Opioides/uso terapéutico , Artroscopía , Dolor Postoperatorio/tratamiento farmacológico , Pautas de la Práctica en Medicina , Adulto , Analgésicos Opioides/efectos adversos , Artroplastia de Reemplazo de Rodilla/efectos adversos , Medicina Basada en la Evidencia , Femenino , Humanos , Articulación de la Rodilla/cirugía , Masculino , Meniscectomía , Persona de Mediana Edad , Morfina/uso terapéutico , Oxicodona/uso terapéutico , Dimensión del Dolor , Guías de Práctica Clínica como Asunto , Estudios ProspectivosRESUMEN
PURPOSE: To quantify the use of 5 mg oxycodone by patients who have undergone knee arthroscopy. METHODS: Patients who underwent knee arthroscopy at 2 institutions between May 2018 and May 2019 were identified retrospectively. Patients were called and queried about the following metrics: total postoperative opioid consumption, preoperative opioid consumption (defined as within 3 months of surgery), smoking status, and history of depression. The total number of opioids prescribed and number of refills were determined according to each patient's chart. State databases were reviewed for additional opioid prescriptions. RESULTS: A total of 100 patients were included in this study. Patients were prescribed a median of 5 pills (range, 5 to 40). Median postoperative opioid consumption was 0 pills, with a mean of 1.9 pills (14.3 oral morphine equivalents) and a range of 0 to 25 pills of oxycodone 5 mg. Of the patients, 97% did not obtain refills, and 58% of the patients did not consume any opioids. Overall, 90% of all patients consumed ≤ 5 pills. CONCLUSIONS: Of the patients, 90% o consumed 5 or fewer opioid pills (oxycodone 5 mg) following knee arthroscopy, with more than half of the patients consuming 0 pills. As a result, we recommend that 5 oxycodone 5 mg pills serve as an objective guideline for opioid prescription following knee arthroscopy. LEVEL OF EVIDENCE: Level IV, retrospective case series.
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Aims External inquiries are carried out following specific adverse events in healthcare, many in maternity care; to identify issues and make recommendations to improve standards of care. Methods Ten publically-available national inquiry reports published between 2005-2018 relating to pregnancy loss services, were reviewed by 2 clinicians, separately, examining the content and recommendations from each report. Results A total of 258 recommendations were made in 9 reports (90%). Five inquiries (50%) clearly stated that affected families were involved and four (40%) involved affected clinical staff. In 9 reports (90%) recommendations included: increase workforce staffing and/or training, strengthen clinical governance, enhance adverse incident management and comprehensive data collection e.g. maternity outcomes. Only two inquiry reports (20%) stated that feedback was sought from key stakeholders prior to publication. Conclusion A collaborative and standardised inquiry process involving and supporting all persons affected as well as key stakeholders would ensure that all relevant issues are identified, recommendations are implemented and essential lessons are learned.
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Aborto Espontáneo/prevención & control , Directrices para la Planificación en Salud , Servicios de Salud Materna/normas , Muerte Perinatal/prevención & control , Mejoramiento de la Calidad , Calidad de la Atención de Salud , Aborto Espontáneo/epidemiología , Femenino , Humanos , Irlanda/epidemiología , EmbarazoRESUMEN
Understanding processes that support the well-being of the unprecedented numbers of forcibly displaced people throughout the world is essential. Growing evidence documents post-migration stressors related to marginalization as key social determinants of refugee mental health. The goal of this RCT was to rigorously test a social justice approach to reducing high rates of distress among refugees in the United States. The 6-month multilevel, strengths-based Refugee Well-being Project (RWP) intervention brought together university students enrolled in a 2-semester course and recently resettled refugees to engage in mutual learning and collaborative efforts to mobilize community resources and improve community and systems responsiveness to refugees. Data collected from 290 Afghan, Great Lakes African, Iraqi, and Syrian refugees at four time points over 12 months were used to test the effectiveness of RWP to reduce distress (depression and anxiety symptoms) and increase protective factors (English proficiency, social support, connection to home and American cultures). Intention-to-treat analyses using multilevel modeling revealed significant intervention effects for all hypothesized outcomes. Results provide evidence to support social justice approaches to improving refugee mental health. Findings have implications for refugees worldwide, and for other immigrant and marginalized populations who experience inequities in resources and disproportionate exposure to trauma/stress.
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Salud Mental , Refugiados/psicología , Determinantes Sociales de la Salud , Estrés Psicológico/psicología , Adolescente , Adulto , Afganistán/etnología , África/etnología , Anciano , Ansiedad/psicología , Depresión/psicología , Femenino , Humanos , Irak/etnología , Masculino , Persona de Mediana Edad , Justicia Social , Apoyo Social , Estados Unidos , Adulto JovenRESUMEN
The Intraosseous Transcutaneous Amputation Prosthesis (ITAP) offers transfemoral amputees an ambulatory method potentially reducing soft tissue complications seen with socket and stump devices. This study validated a finite element (in silico) model based on an ITAP design and investigated implant stem stiffness influence on periprosthetic femoral bone strain. Results showed good agreement in the validation of the in silico model against the in vitro results using uniaxial strain gauges and Digital Image Correlation (DIC). Using Strain Energy Density (SED) thresholds as the stimulus for adaptive bone remodelling, the validated model illustrated that: (a) bone apposition increased and resorption decreased with increasing implant stem flexibility in early stance; (b) bone apposition decreased (mean change = - 9.8%) and resorption increased (mean change = 20.3%) from distal to proximal in most stem stiffness models in early stance. By engineering the flow of force through the implant/bone (e.g. by changing material properties) these results demonstrate how periprosthetic bone remodelling, thus aseptic loosening, can be managed. This paper finds that future implant designs should be optimised for bone strain under a variety of relevant loading conditions using finite element models to maximise the chances of clinical success.
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Prótesis Anclada al Hueso , Diseño de Prótesis , Simulación por Computador , Fémur , Análisis de Elementos Finitos , Humanos , Masculino , Persona de Mediana Edad , Modelos Teóricos , Estrés MecánicoRESUMEN
Antiretroviral-related treatment fatigue is inconsistently defined in the literature on barriers to ART adherence. Research suggests that treatment fatigue is a salient challenge for people struggling with antiretroviral therapy adherence, but little is known about how people living with HIV attempt to manage this fatigue. Twenty-seven semi-structured interviews were conducted with low-income people of color living with HIV in NYC that were currently, or recently, disengaged from HIV care. The findings from this exploratory study suggest that treatment fatigue was common and that participants devised personal strategies to overcome it. These strategies included using reminder programs, requesting weekly rather than monthly pill quantities, and taking "pill holidays". The varied nature- and varying levels of effectiveness- of these strategies highlight the need for specific programming to provide tailored support. Future research should examine treatment fatigue as a specific subtype of adherence challenge, and aim to define pill fatigue clearly.
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Thermoelastic stress analysis using arrays of small, low-cost detectors has the potential to be used in structural health monitoring. However, evaluation of the collected data is challenging using traditional methods, due to the lower resolution of these sensors, and the complex loading conditions experienced. An alternative method has been developed, using image decomposition to generate feature vectors which characterize the uncalibrated map of the magnitude of the thermoelastic effect. Thermal data have been collected using a state-of-the-art photovoltaic effect detector and lower cost, lower thermal resolution microbolometer detectors, during crack propagation induced by both constant amplitude and frequency loading, and by idealized flight cycles. The Euclidean distance calculated between the feature vectors of the initial and current state can be used to indicate the presence of damage. Cracks of the order of 1 mm in length can be detected and tracked, with an increase in the rate of change of the Euclidean distance indicating the onset of critical crack propagation. The differential feature vector method therefore represents a substantial advance in technology for monitoring the initiation and propagation of cracks in structures, both in structural testing and in-service using low-cost sensors.
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Peer providers have been associated with positive outcomes in behavioral health, but little is known about the perceived helpfulness of their services. We used a mixed-methods randomized controlled trial to compare the perceived helpfulness of seeking safety (SS) led by peer providers compared to its delivery by licensed behavioral health clinicians (including both a licensed alcohol and drug abuse counselor and licensed clinical mental health counselor). Participants (N = 278) rated the helpfulness of 12 SS topics at the end of every session. A subset (n = 245) of participants also rated the helpfulness of SS overall and its treatment components; 3 and 6 months following their first SS group. We also collected qualitative data to inform our understanding of the ways perceived helpfulness varied among participants in peer-led (PL) and clinician-led (CL) groups. Ratings of overall and topic-specific helpfulness were high among both groups, and while ratings were slightly higher among participants in PL groups, the difference was not significant. Participants in PL-SS rated certain treatment components significantly more helpful compared to participants in CL-SS, including the focus on learning coping skills (81.6% PL vs. 64.9% CL, p = .020) and safety as a priority of treatment (81.6% PL vs. 61.5% CL, p = .006). Because of the homogeneity of helpfulness ratings, the relationship between perceived helpfulness and treatment retention and outcomes could not be examined. Future research on this association is warranted. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Consejo , Satisfacción del Paciente , Grupo Paritario , Trastornos por Estrés Postraumático/terapia , Trastornos Relacionados con Sustancias/terapia , Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Servicios de Salud Mental , Persona de Mediana Edad , Trastornos por Estrés Postraumático/psicología , Trastornos Relacionados con Sustancias/psicología , Resultado del Tratamiento , Adulto JovenRESUMEN
As refugees move from forced displacement to resettlement, their networks change dramatically alongside their living conditions and surroundings. The relative benefit of different kinds of ties in this context is not well known. Data for this study came from quantitative and qualitative interviews that were part of the Refugee Well-being Project (N=290), a longitudinal RCT study inclusive of refugees resettling from the Great Lakes Region of Africa, Afghanistan, Iraq, and Syria. Quantitative results revealed that greater numbers of kinship ties were related to better psychological quality of life (p<.01) and greater numbers of reported services providers as social ties were related to higher emotional distress (p<.001). Greater numbers of friendship ties were not statistically related to psychological quality of life or emotional distress. Qualitative findings suggest that cultural brokers-social ties that can bridge cultures, languages, and backgrounds--were particularly important to well-being, blending the benefits of strong and weak ties.
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High-temperature copper oxide superconductors consist of stacked CuO2 planes, with electronic band structures and magnetic excitations that are primarily two-dimensional1,2, but with superconducting coherence that is three-dimensional. This dichotomy highlights the importance of out-of-plane charge dynamics, which has been found to be incoherent in the normal state3,4 within the limited range of momenta accessible by optics. Here we use resonant inelastic X-ray scattering to explore the charge dynamics across all three dimensions of the Brillouin zone. Polarization analysis of recently discovered collective excitations (modes) in electron-doped copper oxides5-7 reveals their charge origin, that is, without mixing with magnetic components5-7. The excitations disperse along both the in-plane and out-of-plane directions, revealing its three-dimensional nature. The periodicity of the out-of-plane dispersion corresponds to the distance between neighbouring CuO2 planes rather than to the crystallographic c-axis lattice constant, suggesting that the interplane Coulomb interaction is responsible for the coherent out-of-plane charge dynamics. The observed properties are hallmarks of the long-sought 'acoustic plasmon', which is a branch of distinct charge collective modes predicted for layered systems8-12 and argued to play a substantial part in mediating high-temperature superconductivity10-12.