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Objectives: Public sharing of de-identified biomedical data promotes collaboration between researchers and accelerates the development of disease prevention and treatment strategies. However, open-access data sharing presents challenges to researchers who need to protect the privacy of study participants, ensure that data are used appropriately, and acknowledge the inputs of all involved researchers. This article presents an approach to data sharing which addresses the above challenges by using a publicly available dashboard with de-identified, aggregated participant data from a large HIV surveillance cohort. Materials and Methods: Data in this study originated from the Rakai Community Cohort Study (RCCS), which was integrated into a centralized data mart as part of a larger data management strategy for the Rakai Health Sciences Program in Uganda. These data were used to build a publicly available, protected health information (PHI)-secured visualization dashboard for general research use. Results: Using two unique case studies, we demonstrate the capability of the dashboard to generate the following hypotheses: firstly, that HIV prevention strategies ART and circumcision have differing levels of impact depending on the marital status of investigated communities; secondly, that ART is very successful in comparison to circumcision as an interventional strategy in certain communities. Discussion: The democratization of large-scale anonymized epidemiological data using public-facing dashboards has multiple benefits, including facilitated exploration of research data and increased reproducibility of research findings. Conclusion: By allowing the public to explore data in depth and form new hypotheses, public-facing dashboard platforms have significant potential to generate new relationships and collaborations and further scientific discovery and reproducibility.
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BACKGROUND: Strokes after left atrial appendage closure (LAAC) prophylaxis are generally less severe than those after warfarin prophylaxis-thought to be secondary to more hemorrhagic strokes with warfarin. Hemorrhagic strokes are similarly infrequent with direct oral anticoagulant (DOAC) prophylaxis, so the primary subtype after either LAAC or DOAC prophylaxis is ischemic stroke (IS). OBJECTIVES: The purpose of this study was to compare the severity of IS using the modified Rankin Scale in atrial fibrillation patients receiving prophylaxis with DOACs vs LAAC. METHODS: A retrospective analysis was performed of consecutive patients undergoing LAAC at 8 centers who developed an IS (ISLAAC) compared with contemporaneous consecutive patients who developed IS during treatment with DOACs (ISDOAC). The primary outcome was disabling/fatal stroke (modified Rankin Scale 3-5) at discharge and 3 months later. RESULTS: Compared with ISDOAC patients (n = 322), ISLAAC patients (n = 125) were older (age 77.2 ± 13.4 years vs 73.1 ± 11.9 years; P = 0.002), with higher HAS-BLED scores (3.0 vs 2.0; P = 0.004) and more frequent prior bleeding events (54.4% vs 23.6%; P < 0.001), but similar CHA2DS2-VASc scores (5.0 vs 5.0; P = 0.28). Strokes were less frequently disabling/fatal with ISLAAC than ISDOAC at both hospital discharge (38.3% vs 70.3%; P < 0.001) and 3 months later (33.3% vs 56.2%; P < 0.001). Differences in stroke severity persisted after propensity score matching. By multivariate regression analysis, ISLAAC was independently associated with fewer disabling/fatal strokes at discharge (OR: 0.22; 95% CI: 0.13-0.39; P < 0.001) and 3 months (OR: 0.25; 95% CI: 0.12-0.50; P < 0.001), and fewer deaths at 3 months (OR: 0.28; 95% CI: 0.12-0.64; P < 0.001). CONCLUSIONS: Ischemic strokes in patients with atrial fibrillation are less often disabling or fatal with LAAC than DOAC prophylaxis.
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Fibrilación Atrial , Accidente Cerebrovascular Hemorrágico , Accidente Cerebrovascular Isquémico , Accidente Cerebrovascular , Humanos , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Warfarina/efectos adversos , Fibrilación Atrial/complicaciones , Fibrilación Atrial/tratamiento farmacológico , Fibrilación Atrial/cirugía , Accidente Cerebrovascular Isquémico/inducido químicamente , Accidente Cerebrovascular Isquémico/complicaciones , Accidente Cerebrovascular Isquémico/tratamiento farmacológico , Accidente Cerebrovascular Hemorrágico/inducido químicamente , Accidente Cerebrovascular Hemorrágico/complicaciones , Accidente Cerebrovascular Hemorrágico/tratamiento farmacológico , Estudios Retrospectivos , Cierre del Apéndice Auricular Izquierdo , Resultado del Tratamiento , Anticoagulantes/efectos adversos , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/etiología , Accidente Cerebrovascular/prevención & control , Hemorragia/inducido químicamenteRESUMEN
AIMS: Atrial fibrillation (AF) and chronic kidney disease (CKD) often coexist and share an increased risk of thrombo-embolism (TE). CKD concomitantly predisposes towards a pro-haemorrhagic state. Our aim was to evaluate the prognostic value of CKD in patients undergoing percutaneous left atrial appendage occlusion (LAAO). METHODS AND RESULTS: A total of 2124 consecutive AF patients undergoing LAAO were categorized into CKD stage 1+2 (n = 1089), CKD stage 3 (n = 796), CKD stage 4 (n = 170), and CKD stage 5 (n = 69) based on the estimated glomerular filtration rate at baseline. The primary endpoint included cardiovascular (CV) mortality, TE, and major bleeding. The expected annual TE and major bleeding risks were estimated based on the CHA2DS2-VASc and HAS-BLED scores. A non-significant higher incidence of major peri-procedural adverse events (1.7 vs. 2.3 vs. 4.1 vs. 4.3) was observed with worsening CKD (P = 0.14). The mean follow-up period was 13 ± 7 months (2226 patient-years). In comparison to CKD stage 1+2 as a reference, the incidence of the primary endpoint was significantly higher in CKD stage 3 (log-rank P-value = 0.04), CKD stage 4 (log-rank P-value = 0.01), and CKD stage 5 (log-rank P-value = 0.001). Left atrial appendage occlusion led to a TE risk reduction (RR) of 72, 66, 62, and 41% in each group. The relative RR of major bleeding was 58, 44, 51, and 52%, respectively. CONCLUSION: Patients with moderate-to-severe CKD had a higher incidence of the primary composite endpoint. The relative RR in the incidence of TE and major bleeding was consistent across CKD groups.
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Apéndice Atrial , Fibrilación Atrial , Insuficiencia Renal Crónica , Accidente Cerebrovascular , Humanos , Apéndice Atrial/cirugía , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/etiología , Accidente Cerebrovascular/prevención & control , Pronóstico , Resultado del Tratamiento , Estudios Retrospectivos , Hemorragia/inducido químicamente , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/diagnóstico , Insuficiencia Renal Crónica/epidemiología , Fibrilación Atrial/complicaciones , Fibrilación Atrial/diagnóstico , Fibrilación Atrial/cirugía , Anticoagulantes/efectos adversosRESUMEN
Disparities in representation amongst academic physicians continue to persist at multiple levels, including the resident selection process and faculty career advancement. This study aimed to evaluate the racial and ethnic representation amongst plastic surgeons who are selected to speak at national and regional plastic surgery conferences. Methods: The researchers evaluated selected speakers at 12 plastic surgery annual meetings over 7 years (2014-2020). Racial and ethnic distribution in selected speakers at conferences were compared with those of medical school graduates, plastic surgery residents, and practicing plastic surgeons. Results: There were a total of 79 meetings, with 8931 total speaking opportunities and 1276 unique speakers. The percentage of individuals underrepresented in medicine (UIM) is 15.2% in matriculating medical students, 8.9% in active PRS residents, 8.3% in practicing PRS physicians, and 4.7% in invited conference speakers. Within racial/ethnic groups of invited speakers, there was no significant difference in either the average number of fellowships completed or average number of plastic surgery publications (P = 0.44 and 0.39, respectively). No individual UIM speaker had more than 20 speaking opportunities over these 7 years, compared with 17.0% in non-UIM speakers. Conclusion: Given the results of the study, the researchers conclude that racial minorities are disproportionately underrepresented as selected speakers at plastic surgery conferences, despite similarities in qualifications such as fellowship training, publication number, and years since board certification.
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Introduction: Cultural heritage buildings are revitalized to promote culture instead of being neglected or demolished. For locals, the revitalization of heritage buildings symbolizes a commitment to the community and a taste of collective memory. The study attempts to test the effectiveness of heritage cultural building on visitors' post-experience behavior through cultural identity and place attachment. "Cultural activities engagement" and "knowledge transfer" serves as moderating attributes. Their moderating the effects on cultural identity and place attachment are examined, respectively. Method: A valid sample size of 348 from four heritage buildings located in Hong Kong: Tai Kwun, Police Married Quarters (PMQ), Mei Ho House and The Mills. A data analysis platform for PLSSEM is chosen for this study. Results: Results demonstrate that the effectiveness of heritage building revitalization on visitors' local cultural identity and emotions leading to place attachment. Discussion: In our study, the effectiveness of heritage building encompasses three elements which includes appearance and components; technology and planning as well as contribution. Knowledge transfer positively moderates the effectiveness of heritage building revitalization and cultural identity. However, cultural activity engagement negatively moderates place attachment. Findings also exhibit that place attachment in heritage building revitalization leads to a positive experience extension. For the practical contribution, the study provides insights to policy makers and planners for historic building design such as appearance and components, technology in facilitating local visitors' local identity.
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In the context of climate change, this study uncovers the role of green airlines' social responsibility in conjunction with the consumers' switching behavior while considering the effects of latent variables, including green psychology, airline corporate image, green experimental behavior, green service fairness, green alternative attractiveness and switching intention, were examined in the study. In a highly competitive service environment, an organization needs to understand how passengers perceive its corporate image, satisfaction, fairness attractiveness, and behavior of switching intention. The predicted relationship was based on partial least squares structural equation modeling of a convenience sample of 615 valid datasets collected from individuals who used green airline services in China. The findings show that the psychological benefit of greenness, only warm glow, is the main driver of airline corporate image. Furthermore, airline corporate image, green service fairness, and green alternative attractiveness support passengers' green experiential satisfaction. The evidence demonstrates that green experiential satisfaction and green alternative attractiveness have significantly positive effects on switching intention. However, green service fairness has no significant effect on green switching intention. This study contributes to the literature by understanding airline customers' perception of the complex relationship in the green constructs. This finding can help marketers facilitate and develop their external communication and craft their image to retain their existing or potential customers.
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BACKGROUND: Accurate assessment of regional lymph node basins is critical for oncological management of breast cancer. The internal mammary lymph node (IMLN) basin directly drains the medial pole of the breast, but biopsy is not commonly performed. While the axillary sentinel lymph node sample remains the standard of care, the majority of patients who have been found to have a positive IMLN biopsy have simultaneously had negative axillary sentinel lymph nodes. This study prospectively examines routine IMLN biopsy during microsurgical breast reconstruction. METHODS: An IRB-approved study of routine IMLN biopsies in 270 consecutive patients who underwent microsurgical breast reconstruction was performed from July 1, 2018, to June 1, 2021. Recorded data included unilateral or bilateral breast reconstruction, unilateral or bilateral IMLN sampling, patient demographics, disease stage, and pathologic findings of IMLN. RESULTS: The majority of patients, 240 of 270 patients (88.9%), had bilateral reconstruction. Overall, 5 out of 270 (1.9%) patients had positive IMLN; one of these patients had positive axillary sentinel lymph nodes. The IMLN biopsy results in two of the five patients affected the clinical course as they were upstaged and required chemoradiation. CONCLUSION: Direct visualization of the internal mammary lymph nodes during dissection of the recipient vessels for microsurgical breast reconstruction allows for convenient sampling, with minimal donor site morbidity and enhances the therapeutic management of patients in whom nodal involvement is present. As such, the authors recommend IMLN sampling.
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Neoplasias de la Mama , Mamoplastia , Humanos , Femenino , Estudios Prospectivos , Biopsia del Ganglio Linfático Centinela/métodos , Metástasis Linfática/patología , Estudios Retrospectivos , Ganglios Linfáticos/cirugía , Ganglios Linfáticos/patología , Mamoplastia/métodos , Axila/cirugía , Neoplasias de la Mama/cirugía , Neoplasias de la Mama/patología , Escisión del Ganglio Linfático , Estadificación de NeoplasiasRESUMEN
BACKGROUND: The demographics of plastic surgeons and plastic surgery trainees are changing, reflecting an increase in the diversity of medical school graduates. The authors investigated the gender diversity of speakers at several plastic surgery conferences and evaluated temporal trends over a 10-year period. METHODS: The following societies' conferences and years were included based on the conference agendas available for review: American Society for Aesthetic Plastic Surgery, Plastic Surgery Research Council, American Association of Plastic Surgeons, Northeastern Society of Plastic Surgeons, and American Society for Reconstructive Microsurgery. Differences in the average amount of time spoken were analyzed using an independent one-tailed t test. RESULTS: The number of female speakers and the time allotted to speak increased for all conferences. There was not a consistent difference in the amount of time individual men and women were allotted to speak. Across the five conferences, there was no consistent relationship found between years since board certification and female participation in conference. Gender diversity among speakers at plastic surgery conferences has not kept pace with the increase in female plastic surgery trainees because those who are selected to speak are overwhelmingly men. The hypothesis that a paucity of female speakers reflects the relatively shorter duration of career experience of female plastic surgeons was not supported by these findings. CONCLUSION: It is imperative that conferences increase the participation of women and strive toward more accurately reflecting the burgeoning role that female surgeons have in the field at present and will have in the future.
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Congresos como Asunto/tendencias , Equidad de Género/tendencias , Liderazgo , Médicos Mujeres/tendencias , Sociedades Médicas/tendencias , Cirujanos/tendencias , Cirugía Plástica/tendencias , Congresos como Asunto/organización & administración , Femenino , Humanos , Masculino , Médicos Mujeres/organización & administración , Sexismo/tendencias , Sociedades Médicas/organización & administración , Cirujanos/organización & administración , Cirugía Plástica/organización & administración , Estados UnidosRESUMEN
BACKGROUND: Data regarding the use of high-power short-duration (HPSD) radiofrequency (RF) in combination with half-normal saline irrigation for catheter irrigation are limited. OBJECTIVES: This study investigated the safety and efficacy of using HPSD RF ablation in combination with half-normal saline irrigation for the treatment of AF. METHODS: One hundred consecutive patients with AF underwent RF ablation using HPSD combined with half-normal saline for catheter irrigation. In addition, the following ablation strategies were used: 1 mm tags for the display of ablation lesions on the mapping system, high-frequency jet ventilation (HFJV), low contact force, pacing after ablation to verify areas of noncapture, atrial/ventricular pacing at 500 to 700 ms to aid in catheter stability, use of two skin electrodes to reduce impedance, and postablation adenosine infusion. Power was started at 40 to 45 W and was modulated manually based on impedance changes. RESULTS: The average age of patients was 65.2 years and 70% were male. Forty seven percent had paroxysmal AF and the average CHA2 DS2 -VASc score was 2.1 ± 1.6. The average power and lesion duration were 38.1 ± 3.3 W and 8.1 ± 2.3 s, respectively. During a median follow-up period of 321 ± 139 days, 89% of the patients remained free from any atrial arrhythmias after a single RF ablation procedure. No procedure-related death, stroke, pericardial effusion, or atrioesophageal fistula occurred during follow-up. CONCLUSIONS: Catheter ablation using HPSD RF lesions in combination with half-normal saline irrigation and is safe and effective, and results in high rate of freedom from AF.
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Fibrilación Atrial/terapia , Ablación por Radiofrecuencia/métodos , Solución Salina/administración & dosificación , Irrigación Terapéutica/métodos , Anciano , Terapia Combinada , Femenino , Humanos , MasculinoRESUMEN
To improve timely access to quality HIV research data, the Rakai Health Sciences Program (RHSP) Data Mart was developed to store cohort study data from a legacy database platform in a modernized system using standard data management processes. The RHSP Data Mart was developed on a Microsoft SQL Server platform using Microsoft SQL Server Integration Services with custom data mappings and queries. The data mart stores 20+ years of longitudinal HIV research data and includes standard processes for managing data, data dictionary, training materials, and a library of queries to fulfill data requests and load new data from completed survey rounds. The RHSP Data Mart enables efficient querying and analysis of multidimensional research data by simplifying data integration and processing. A sustainable database platform with well-defined data management processes promotes data accessibility and reproducibility, enabling researchers to advance their understanding and management of infectious diseases.
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BACKGROUND: Industry relationships and conflicts of interest can impact research funding, topics, and outcomes. Little research regarding the role of biomedical companies at microsurgery conferences is available. This study evaluates the role of industry at conferences by comparing payments received by speakers at the American Society for Reconstructive Microsurgeons (ASRM) meeting with those received by speakers at the American Society of Aesthetic Plastic Surgeons (ASAPS) meeting, the American Society of Plastic Surgeons (ASPS) meeting, and an average plastic surgeon. It also compares payments made by different companies. METHODS: General payments received by speakers at the 2017 ASAPS, ASPS, and ASRM conferences were collected from the Open Payments Database. Mean payments received at each conference were calculated and the Mann-Whitney U test evaluated differences between conference speakers and the average plastic surgeon. The total amount of payments from each company was collected through the Open Payments Database, and Z-tests identified which companies paid significantly more than others. RESULTS: The mean (and median) general payments made to conference speakers at ASAPS (n = 75), ASPS (n = 247), and ASRM (n = 121) were $75,577 ($861), $27,562 ($1,021), and $16,725 ($652), respectively. These payments were significantly greater (p < 0.001 for all) than those of the average plastic surgeon ($4,441 and $327), but not significantly different from each other. Allergan contributed significantly more than other companies to speakers at ASPS and ASAPS, while LifeCell Corporation, Zimmer Biomet Holdings, and Axogen contributed significantly more to speakers at ASRM. CONCLUSION: Payments to physicians at ASRM were significantly higher than those of an average plastic surgeon but not significantly different from those of speakers at ASAPS and ASPS. Certain companies paid significantly more than their peers at each conference. Given these findings, speakers should strive to make clear the nature and extent of their conflicts of interest when presenting at conferences.
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Conflicto de Intereses , Revelación , Bases de Datos Factuales , Microcirugia , Estados UnidosRESUMEN
OBJECTIVE: Clinical research informatics tools are necessary to support comprehensive studies of infectious diseases. The National Institute of Allergy and Infectious Diseases (NIAID) developed the publicly accessible Tuberculosis Data Exploration Portal (TB DEPOT) to address the complex etiology of tuberculosis (TB). MATERIALS AND METHODS: TB DEPOT displays deidentified patient case data and facilitates analyses across a wide range of clinical, socioeconomic, genomic, and radiological factors. The solution is built using Amazon Web Services cloud-based infrastructure, .NET Core, Angular, Highcharts, R, PLINK, and other custom-developed services. Structured patient data, pathogen genomic variants, and medical images are integrated into the solution to allow seamless filtering across data domains. RESULTS: Researchers can use TB DEPOT to query TB patient cases, create and save patient cohorts, and execute comparative statistical analyses on demand. The tool supports user-driven data exploration and fulfills the National Institute of Health's Findable, Accessible, Interoperable, and Reusable (FAIR) principles. DISCUSSION: TB DEPOT is the first tool of its kind in the field of TB research to integrate multidimensional data from TB patient cases. Its scalable and flexible architectural design has accommodated growth in the data, organizations, types of data, feature requests, and usage. Use of client-side technologies over server-side technologies and prioritizing maintenance have been important lessons learned. Future directions are dynamically prioritized and key functionality is shared through an application programming interface. CONCLUSION: This paper describes the platform development methodology, resulting functionality, benefits, and technical considerations of a clinical research informatics application to support increased understanding of TB.
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Internet , Aplicaciones de la Informática Médica , Tuberculosis , Biología Computacional , Bases de Datos como Asunto , Genómica , Humanos , National Institute of Allergy and Infectious Diseases (U.S.) , Radiología , Programas Informáticos , Tuberculosis/diagnóstico , Tuberculosis/tratamiento farmacológico , Tuberculosis/genética , Tuberculosis/prevención & control , Estados UnidosRESUMEN
BACKGROUND: The gender disparity between the number of female and male chairs and program directors has been previously established. The aim of this study was to determine whether any differences in objective credentials existed between male and female plastic surgery department chairs/division chiefs and program directors. METHODS: Information about each plastic surgery program director and chair/chief was extracted from the websites of all institutions affiliated with a plastic surgery residency program. For each individual, information about the length of their career, number of fellowships completed, and number of publications was recorded. The two-tailed t test was used to compare differences between male and female chairs and program directors. RESULTS: A total of 99 chairs were recorded, of which nine (9.1 percent) were female. Of the 99 program directors, 13 (13.1 percent) were female. There was no difference in the number of years in practice or number of fellowships between men and women for either position. On average, male chairs had significantly fewer publications than female chairs (71.9 versus 128; p < 0.05). There was no significant difference in the number of publications between male and female program directors. Compared to program directors, chairs had significantly more years in practice and numbers of publications, which held true for both men and women. CONCLUSIONS: Women are not only underrepresented in the department chair and program director positions, but also possess higher qualifications that may reflect differences in standards for promotion and appointment. Additional research is needed to elucidate the reasons behind the observed differences in qualifications.
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Docentes Médicos/organización & administración , Internado y Residencia/organización & administración , Selección de Personal/ética , Sexismo , Cirugía Plástica/organización & administración , Docentes Médicos/estadística & datos numéricos , Becas/estadística & datos numéricos , Femenino , Humanos , Internado y Residencia/ética , Internado y Residencia/estadística & datos numéricos , Liderazgo , Masculino , Publicaciones/estadística & datos numéricos , Cirugía Plástica/ética , Cirugía Plástica/estadística & datos numéricosRESUMEN
BACKGROUND: Interrupted inferior vena cava (IVC) is a rare venous anomaly that complicates the treatment of patients who require electrophysiology (EP) procedures. METHODS: We describe five consecutive cases of patients with interrupted IVC who presented to the EP laboratory requiring interventional procedures including catheter ablation for atrial fibrillation and supraventricular tachycardia and left atrial appendage closure. All cases were successfully completed utilizing a variety of approaches to vascular access including transseptal puncture via transhepatic and internal jugular approaches. CONCLUSION: Procedures in the EP lab can be performed successfully in patients with interrupted IVC.
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Arritmias Cardíacas/terapia , Apéndice Atrial , Cateterismo Cardíaco , Ablación por Catéter , Sistema de Conducción Cardíaco/cirugía , Venas Pulmonares/cirugía , Vena Cava Inferior/anomalías , Potenciales de Acción , Adulto , Anciano de 80 o más Años , Arritmias Cardíacas/diagnóstico por imagen , Arritmias Cardíacas/fisiopatología , Apéndice Atrial/diagnóstico por imagen , Apéndice Atrial/fisiopatología , Cateterismo Cardíaco/efectos adversos , Cateterismo Cardíaco/instrumentación , Ablación por Catéter/efectos adversos , Femenino , Sistema de Conducción Cardíaco/fisiopatología , Frecuencia Cardíaca , Humanos , Masculino , Venas Pulmonares/fisiopatología , Resultado del Tratamiento , Vena Cava Inferior/diagnóstico por imagenRESUMEN
BACKGROUND: Women now constitute 40.5 percent of integrated plastic surgery residents; however, in 2007, women represented only 11.3 percent of the leadership positions in plastic surgery societies and journal editorial boards. The authors analyzed female representation in these societies and editorial boards over the past 10 years. METHODS: Names of board members from the major plastic surgery societies (American Society of Plastic Surgeons, The Plastic Surgery Foundation, and American Society for Aesthetic Plastic Surgery, among others) for the past 10 years and the major plastic journals (Plastic and Reconstructive Surgery, Annals of Plastic Surgery, and so on) from the past 5 years were extracted from their websites. The yearly percentage of female plastic surgery residents was obtained from Accreditation Council for Graduate Medical Education published data. The proportions of women in society leadership, editorial boards, and residency were compared with data analyses of time series trend and linear and Auto Regressive Integrated Moving Average time series modeling. RESULTS: Over the past 10 years, the percentage of female residents has grown steadily, from 21.84 percent to 37.31 percent. Similarly, female representation in society leadership has grown from 6.78 percent to 20.29 percent. Both growth coefficients were statistically significant and showed no statistical difference between the two. In contrast, editorial board leadership over the past 5 years showed statistically insignificant growth and showed a statistically significant difference when compared to the growth of the percentage of female residents and female representation in society leadership. CONCLUSION: Female representation in plastic surgery society leadership shows promising growth, whereas their representation on editorial boards showed significantly less growth, which may reflect the slower turnover on these boards.
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Médicos Mujeres/estadística & datos numéricos , Cirugía Plástica/estadística & datos numéricos , Femenino , Humanos , Liderazgo , Masculino , Edición , Distribución por Sexo , Sociedades Médicas , Estados UnidosRESUMEN
Background Variability in the management of atrial fibrillation (AF) in the emergency department (ED) leads to avoidable hospital admissions and prolonged length of stay (LOS). In a retrospective single-center study, a multidisciplinary AF treatment pathway was associated with a reduced hospital admission rate and reduced LOS. To assess the applicability of the AF pathway across institutions, we conducted a 2-center study. Methods and Results We performed a prospective, 2-stage study at 2 tertiary care hospitals. During the first stage, AF patients in the ED received routine care. During the second stage, AF patients received care according to the AF pathway. The primary study outcome was hospital admission rate. Secondary outcomes included ED LOS and inpatient LOS. We enrolled 104 consecutive patients in each stage. Patients treated using the AF pathway were admitted to the hospital less frequently than patients who received routine care (15% versus 55%; P<0.001). For admitted patients, average hospital LOS was shorter in the AF pathway cohort than in the routine care cohort (64 versus 105 hours, respectively; P=0.01). There was no significant difference in the average ED LOS between AF pathway and routine care cohorts (14 versus 12 hours, respectively; P=0.32). Conclusions In this prospective 2-stage, 2-center study, utilization of a multidisciplinary AF treatment pathway resulted in a 3.7-fold reduction in admission rate and a 1.6-fold reduction in average hospital LOS for admitted patients. Utilization of the AF pathway was not associated with a significant change in ED LOS.
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Antiarrítmicos/uso terapéutico , Anticoagulantes/uso terapéutico , Fibrilación Atrial/terapia , Cardioversión Eléctrica , Hospitalización/estadística & datos numéricos , Tiempo de Internación/estadística & datos numéricos , Grupo de Atención al Paciente , Anciano , Anciano de 80 o más Años , Atención Ambulatoria , Fibrilación Atrial/complicaciones , Cardiología , Vías Clínicas , Medicina de Emergencia , Servicio de Urgencia en Hospital , Inhibidores del Factor Xa/uso terapéutico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Alta del Paciente , Estudios Prospectivos , Accidente Cerebrovascular/etiología , Accidente Cerebrovascular/prevención & control , Warfarina/uso terapéuticoRESUMEN
BACKGROUND: Left atrial appendage closure (LAAC) is an alternative to long-term anticoagulation for thromboembolic protection in patients with atrial fibrillation (AF) and high bleeding risk. Short-term Warfarin use following LAAC is well-studied, while data pertaining to novel oral anticoagulant (NOAC) use in this setting is less robust. Specifically, data regarding the safety and efficacy of postprocedural NOAC use in high-risk patients is lacking. OBJECTIVE: To compare the safety and efficacy of Warfarin and NOAC use in a high-risk patient population undergoing LAAC with the WATCHMAN device. METHODS: From November 2015 to October 2017, 97 patients underwent LAAC with the WATCHMAN device. All patients were discussed at a multidisciplinary meeting prior to device implantation. Longitudinal data were collected and analyzed for a composite endpoint of stroke and death at 8 months, and major bleeding at 3 and 6 months. RESULTS: Among the 90 patients included in the safety and efficacy analysis, 43 were prescribed Warfarin and 47 were prescribed NOACs. Baseline characteristics were comparable between study groups. There were no procedural complications and no significant differences in the incidence of death and stroke at 8 months or major bleeding at 3 and 6 months. CONCLUSION: For patients with AF at high risk of both thromboembolic and hemorrhagic events, NOACs as compared to Warfarin, seem to be safe and effective for short-term anticoagulation following LAAC with the WATCHMAN device. Further validation in large randomized controlled trials is required.
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Anticoagulantes/administración & dosificación , Apéndice Atrial , Fibrilación Atrial/tratamiento farmacológico , Fibrilación Atrial/cirugía , Dispositivo Oclusor Septal , Accidente Cerebrovascular/prevención & control , Warfarina/administración & dosificación , Administración Oral , Anciano , Fibrilación Atrial/mortalidad , Femenino , Humanos , Masculino , Accidente Cerebrovascular/mortalidadRESUMEN
Contemporary cardiac and heart rate monitoring devices capture physiological signals using optical and electrode-based sensors. However, these devices generally lack the form factor and mechanical flexibility necessary for use in ambulatory and home environments. Here, we report an ultrathin (~1 mm average thickness) and highly flexible wearable cardiac sensor (WiSP) designed to be minimal in cost (disposable), light weight (1.2 g), water resistant, and capable of wireless energy harvesting. Theoretical analyses of system-level bending mechanics show the advantages of WiSP's flexible electronics, soft encapsulation layers and bioadhesives, enabling intimate skin coupling. A clinical feasibility study conducted in atrial fibrillation patients demonstrates that the WiSP device effectively measures cardiac signals matching the Holter monitor, and is more comfortable. WiSP's physical attributes and performance results demonstrate its utility for monitoring cardiac signals during daily activity, exertion and sleep, with implications for home-based care.
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BACKGROUND: The cytotoxic effects of microtubule-targeting agents (MTAs) are often attributed to targeted effects on mitotic cells. In clinical practice, MTAs are combined with DNA-damaging agents such as ionizing radiation (IR) with the rationale that mitotic cells are highly sensitive to DNA damage. In contrast, recent studies suggest that MTAs synergize with IR by interfering with the trafficking of DNA damage response (DDR) proteins during interphase. These studies, however, have yet to demonstrate the functional consequences of interfering with interphase microtubules in the presence of IR. To address this, we combined IR with an established MTA, mebendazole (MBZ), to treat glioma cells exclusively during interphase. MATERIALS AND METHODS: To test whether MTAs can sensitize interphase cells to IR, we treated GL261 and GBM14 glioma cells with MBZ during 3-9 hours post IR (when the mitotic index was 0%). Cell viability was measured using a WST-1 assay, and radiosensitization was quantified using the dose enhancement factor (DEF). The effect of MBZ on the DDR was studied via Western blot analysis of H2AX phosphorylation. To examine the effects of MTAs on intracellular transport of DDR proteins, Nbs1 and Chk2, cytoplasmic and nuclear fractionation studies were conducted following treatment of glioma cells with MBZ. RESULTS: Treatment with MBZ sensitized interphase cells to the effects of IR, with a maximal DEF of 1.34 in GL261 cells and 1.69 in GBM14 cells. Treatment of interphase cells with MBZ led to more sustained γH2AX levels post IR, indicating a delay in the DDR. Exposure of glioma cells to MBZ resulted in a dose-dependent sequestration of Chk2 and Nbs1 in the cytoplasm. CONCLUSION: This study demonstrates that MBZ can sensitize cancer cells to IR independently of the induction of mitotic arrest. In addition, evidence is provided supporting the hypothesis that MTA-induced radiosensitization is mediated by inhibiting DDR protein accumulation into the nucleus.