9 research outputs found
Prevalence of skin tears in the extremities among elderly residents at a nursing home in Denmark
No full textObjective: The aim of the study was to determine the prevalence of skin tears in the extremities and explore factors in relation to skin tears in elderly residents at a Danish nursing home. Method: The study was designed as a point prevalence survey and conducted at a nursing home with 140 residents >65 years of age. The residents were assessed for presence, number and location of skin tears. Data were collected using a data collection sheet developed for this study. The survey team consisted of four expert nurses from a university hospital (two dermatology and two wound care nurses). Data were collected over a period of 10 hours spread over two days. Results: Of the 128 participating residents six had skin tears, yielding a prevalence of 4.6 %. In total, 10 skin tears were observed in the 6 residents. The frequency of previous skin tears was 19.5 %. This frequency was significantly higher in residents with skin tears than in those without skin tears (83.3 % versus 16.4 %, p<0.001). Analysis of the relation between skin tears or previous skin tears versus without skin tears or previous skin tears showed significant differences related to the presence of ecchymosis (76.9 %versus 14.7 %, p<0.0001). There were no other significant factors observed. Conclusion: The low prevalence found in this study may reflect the focus on prevention of skin tears that the nursing home has maintained over the past year. Nevertheless, the appropriate prevention and management of residents with skin tears is an ongoing challenge for health professionals. </jats:sec
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LIMPRINT: prevalence of chronic edema in health services in Copenhagen, Denmark
No full textBackground: The International Lymphedema Framework developed an international study, Lymphedema Impact and Prevalence International (LIMPRINT) to estimate the prevalence and impact of chronic edema in heterogeneous populations.
Methods and results: A validation study using the LIMPRINT methodology was undertaken in Denmark. Participants with CO were identified from in-patient services and compared to those identified within a specialist lymphoedema service and 3 primary care settings. Of 452 inpatients available for screening CO was present in 177(39%) and absent in 275(61%). In addition, 723 participants were found from specialist and primary care services (LPCS). In-patients were significantly older and more likely to be underweight or normal weight. They were more likely to suffer from heart failure/IHD (44.6% vs 23.4%, p<0.001) and have neurological problems (18.1% vs 10.9% p=0.009). The inpatient group were nearly all suffering from secondary Lymphoedema and were less likely to have a cancer or venous diagnosis, but more likely to have immobility as the cause of CO (44.0% vs 17.7%, p<0.001). No in-patients had midline CO compared to 30 within LPCS. Fewer in the in-patient group had standard CO treatment (17.1% vs 73.5%, p<0.001) and subjective control of swelling was worse (19.9% vs 66.7%, p<0.001). Whilst the in-patient group experienced fewer acute infections, when they did so, they were more likely to be admitted to hospital for this (78.6% vs 51.0%, p=0.049).
Conclusion: The prevalence of CO in inpatient facilities is high and those with CO have multiple comorbidities that vary according to setting. The feasibility study showed the methodology could be adapted for use in different health systems
Human peripheral B cell development
No full textSince the middle of the nineties, our understanding of human peripheral B cell development has gradually increased. Today, the B cell compartment has been divided into three main populations; transitional, naive and memory B cells. In Mats Bermark's laboratorium, a cell surface marker identifying a novel peripheral B cell population has been found. The work performed during this thesis aimed to characterize the novel B cell population by comparing it with the major already described peripheral B cell populations. Novel B cells were found to be smaller than memory B cells. The antibody genes were found to contain less mutations than those of memory B cells. Furthermore, novel B cells were found to be less prone to enter apoptosis than transitional B cells. A screening experiment using flow cytometry added support to the hypothesis that the novel B cells are different from the already described populations. The results suggests that the novel B cell population is a distinct subpopulation post- or parallel to the naive population. Novel B cells might be able to differentiate into IgM+ memory B cells. In order to verify this, new experiments are neede
A Multisampling Time-domain Cmos Imager With Synchronous Readout Circuit
No full textA novel multisampling time-domain architecture for CMOS imagers with synchronous readout and wide dynamic range is proposed. The architecture was implemented in a prototype of imager with 32x32 pixel array fabricated in AMS CMOS 0.35νm and was characterized for sensitivity and color response. The pixel is composed of an n+/psub photodiode, a comparator and a D flip-flop having 16% fill-factor and 30νmx26νm dimensions. The multisampling architecture requires only a 1 bit per pixel memory instead of 8 bits which is typical for time-domain active pixel architectures. The advantage is that the number of transistors in the pixel is low, saving area and providing higher fill-factor. The maximum frame rate is analyzed as a function of number of bits and array size. The analysis shows that it is possible to achieve high frame rates and operation in video mode with 10 bits. Also, we present analysis for the impact of comparator offset voltage in the fixed pattern noise. Copyright 2007 ACM.5358Ardeshirpour, Y., Deen, M.J., Shirani, S., Two-dimensional CMOS-based image sensor system for fluorescent detection (2004) Can. J. Elect. Comp. Eng, 29 (4), pp. 231-235. , OctBaker, R.J., Li, W.H., Boyce, D.E., (1998) CMOS Circuit Design and Layout, , 1st edition. IEEE press, Piscataway, NJBermak, A., Yung, Y.-F.A.D., Array with Programmable Resolution and Reconfigurable Conversion Time (2006) IEEE Trans. Very Large Scale Integration Systems, 14 (1), pp. 15-22. , JanChen, S., Bermak, A., and Boussaid, F. A Compact Reconfigurable Counter Memory for Spiking Pixels. IEEE Electron Device Letters, 27, 4 (April 2006), 255-257Doge, J., Schonfelder, G., Streil, G.T., Konig, A., An, H.D.R., CMOS Image Sensor with Spiking Pixels, pixel level ADC, and Linear Characteristics (2002) IEEE Transactions Circuits Systems II, Analog Digital Signal Processing, 49 (2), pp. 155-158. , FebFaramarzpour, N., Deen, M.J., Shirani, S., Signal and noise modeling and analysis of CMOS active pixel sensors (2006) The Journal of Vacuum Science and Technology, Special Issue: Proceeding of Canadian Semiconductor Technology Conference, A24(3), pp. 879-882. , May/JuneFaramarzpour, N., Deen, M.J., Shirani, S., An approach to improve the signal-to-noise ratio of active pixel sensor for low-light-level applications (2006) IEEE Transactions on Electron Devices, 53 (9), pp. 2384-2391. , SepFossum, E., CMOS image sensors: Electronic camera-on-chip (1997) IEEE Transactions Electron Devices, 44 (10), pp. 1689-1698. , OctGamal, A.E., Trends in CMOS Image Sensor Technology and Design (2002) Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS 2002), pp. 805-808. , Scottsdale, USA, May 26-29, IEEE pressHosticka, B.J., Brockherde, W., Bussmann, A., Heimann, T., Jeremias, R., Kemma, A., Nitta, C., Schrey, O., CMOS Imaging for Automotive Applications (2003) IEEE Transactions on Electron Devices, 50 (1), pp. 173-183. , JanKitchen, A., Bermark, A., Bouzerdoum, A., PWM digital pixel sensor based on asynchronous self-reset scheme (2003) IEEE Electron Device Letters, 38 (2), pp. 281-2945. , FebKleinfielder, S., Lim, S.H., Liu, X., Gamal, A.E.A., 10000 frames/s CMOS Digital Pixel Sensor (2001) IEEE Journal Solid-Stated Circuits, 36 (12), pp. 2049-2059. , DecLai, C.-H., King, A.-C., Huang, S.-Y.A., 1.2-V 0.25-μm Clock Output Pixel Architecture with Wide Dynamic Range and Self-Offset Cancellation (2006) IEEE Sensors Journal, 6 (2), pp. 398-405. , AprilQi, X., Guo, X., Harris, J.G., A time-to-first spike CMOS imager (2004) lia Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS 2004), 4, pp. 824-827. , Vancouver, CA, May 23-26, IEEE pressSandage, R.W., Connelly, J.A., A fingerprint optodetector using lateral bipolar phototransistor in a standard CMOS process (1995) IEDM Tech. Dig, pp. 171-174. , Washington DC, USA, Dec. 10-13, IEEE pressStoppa, D., Simoni, A., Gonzo, L., Gottardi, M., Betta, A, G.-F.D., 138 dB Dynamic Range CMOS Imager Sensor with New Pixel Architecture (2002) Proceedings of the IEEE International Solid-State Circuits Conference, Digest of Technical Papers, 1, pp. 440-442. , San Francisco, USA, Feb. 3-7, IEEE pressTrepanier, J.-L., Sawan, M., Audet, Y., and Coulombe, J. A Wide Dynamic Range CMOS Digital Pixel Sensor. In Proceedings of the 2002 45th Midwest Symposium on Circuits and Systems (MWSCAS-2002) (Tulsa, USA, Aug. 4-7, 2002). IEEE press, 2002, 2, 437-440Yadid-Pecht, O., Belenky, A., In-Pixel Autoexposure CMOS APS (2003) IEEE Journal of Solid-State Circuits, 38 (8), pp. 1425-1428. , AugYang, S.-H., Cho, K.-R., High Dynamic Range CMOS Image Sensor with Conditional Reset (2002) Proceedings of the IEEE Custom Integrated Circuits Conference, pp. 265-268. , Orlando, USA, May 12-15, IEEE pressYasuda, T., Hamamoto, T., Aizawa, K., Adaptive-Integration-Time Image Sensor with Real-Time Reconstruction Function (2003) IEEE Transactions on Electron Devices, 50 (1), pp. 111-120. , JanYuan, J., Svensson, C., New Single-Clock CMOS Latches and Flipflops with Improved Speed and Power Savings (1997) IEEE Journal of Solid-Stated Circuits, 32 (1), pp. 62-69. , Ja
Estimation of the prevalence of lymphoedema/chronic oedema in acute hospital in-patients
No full textBackground: To estimate the prevalence of lymphoedema/chronic oedema and wounds in acute hospital in-patients in 5 different countries.
Method: A point-prevalence study was carried out during working day periods in six general hospitals in four countries (Denmark, France, United Kingdom, Australia) and one hospital oncology in-patient unit in one other country (Ireland). The study used validated clinical tools for the assessment and collection of data. Data were collected by expert clinicians through interviews and physical examination of the patients present in the wards.
Results: A total of 1905 patients could be included and investigated among the 3041 total bed occupancy in the seven hospitals. Lymphoedema/chronic oedema was present in 723 of them (38%). Main risk factors associated with chronic oedema were age, morbid obesity and heart failure as well as chair bound immobility and neurological deficiency. History of cellulitis was frequent in patients with chronic oedema and wounds (24.8%), chronic oedema alone (14.1%) as compared to the 1.5% prevalence in patients without chronic oedema.
Conclusion: Lymphoedema/chronic oedema is very frequent in patients hospitalized in hospital acute wards. It is strongly associated with obesity, venous insufficiency and heart failure. Our results strongly suggest a hidden health care burden and cost linked to chronic oedema independently of chronic wounds
Estratégias para o ensino do autocuidado a pessoas com úlceras vasculares venosas: uma revisão integrativa
No full text
Objective: Describe self-care techniques for patients suffering from vascular ulcers.
Methodology: Integrative review of the literature to identify the importance of self-care management in patients and the role of nursing.
Results: According to the scientific literature evaluated to date in the field of self-care of vascular ulcers and the role of nursing in the acquisition of these skills, 30 studies were analyzed with a good level of scientific evidence, which provided important concepts for education in Patient health with vascular ulcers. Conclusions: Topical treatment accompanied by compression therapy, training of the nursing professional to select the indicated therapy and provide health education, generation of support networks, monitoring of the patient's mood and self-esteem.Introducción: las úlceras vasculares son lesiones que se desarrollan principalmente en miembros inferiores, se acompañan de dolor continuo e incapacitante, dificultan la movilidad, alteran la propia imagen corporal y pueden interferir en las actividades de la vida diaria. Las úlceras venosas son graves, ocasionadas por insuficiencia venosa crónica e hipertensión venosa permanente, y la persona que las padece debe recibir cuidados de enfermería integrales, que contribuyan al autocuidado. Objetivo: describir las estrategias que debe tener en cuenta el profesional de enfermería para la promoción del autocuidado en personas con úlceras vasculares venosas. Metodología: revisión integrativa de la literatura. Se realizó búsqueda en bases de datos y recursos electrónicos: Medline a través de PubMed Health, Epistemonikos y SciELO. Se incluyeron artículos de investigación y de revisión relacionados con el problema en estudio, publicados en inglés, portugués o español en el periodo 2010-2020. Estudio sin riesgo, se respetan los derechos de autor. Resultados: se analizó una muestra constituida por 41 publicaciones. Los temas principales producto del análisis fueron: proceso de atención de enfermería y autocuidado, familiarizándose con la úlcera venosa y las opciones terapéuticas, conocimiento de la terapia de compresión, práctica de los estilos de vida saludables. Conclusiones: el cuidado de enfermería al paciente con úlcera venosa debe comenzar por reconocer a la persona desde una perspectiva holística y en reciprocidad con su entorno, lo que implica un proceso de atención integral que va más allá de la úlcera y valora al paciente como un sujeto activo en el cuidado, para que se familiarice con su herida y esté en capacidad de detectar señales de mejoría o de alarma, así como de conocer la terapia de compresión y opciones terapéuticas y de llevar a su cotidianidad la práctica de estilos de vida saludables.Introdução: Úlceras vasculares são lesões que se desenvolvem principalmente nos membros inferiores, são acompanhadas de dores contínuas e incapacitantes, dificultam a mobilidade, alteram a própria imagem corporal e podem interferir nas atividades da vida diária. As úlceras venosas são graves, causadas pela insuficiência venosa crônica e hipertensão venosa permanente, e a pessoa que as sofre deve receber cuidados de enfermagem integrais, o que contribui para o autocuidado. Objetivo: Descrever as estratégias que o profissional de enfermagem deve levar em consideração para promover o autocuidado em pessoas com úlceras vasculares venosas. Metodologia: Revisão integrativa da literatura. Foi realizada busca nas bases de dados e recursos eletrônicos: Epistemonikos, Medline por meio do PubMed Health e SciELO. Foram incluídos artigos de pesquisa e revisão relacionados ao problema em estudo, publicados em inglês, português ou espanhol, no período 2010-2020. Estude sem risco, os direitos autorais são respeitados. Resultados: Foi analisada uma amostra de 41 publicações. Os principais tópicos como produto da análise foram: Cuidados de enfermagem e processo de autocuidado, Conhecendo úlcera venosa e opções terapêuticas, Conhecimento da terapia compressiva, Prática de estilos de vida saudáveis. Conclusões: O cuidado de enfermagem à pessoa com úlcera venosa deve partir do reconhecimento da pessoa em uma perspectiva holística e de reciprocidade com seu meio, o que implica um processo de cuidado integral que vai além da úlcera, que reconhece a pessoa como sujeito ativo no cuidado , para que se familiarize com sua ferida e seja capaz de detectar sinais de melhora ou alarme, que conheça terapia compressiva, bem como outras opções terapêuticas, e que finalmente conduza ao seu cotidiano a prática de estilos de vida saudáveis
Estratégias para o ensino do autocuidado a pessoas com úlceras vasculares venosas: uma revisão integrativa
No full text
Objective: Describe self-care techniques for patients suffering from vascular ulcers.
Methodology: Integrative review of the literature to identify the importance of self-care management in patients and the role of nursing.
Results: According to the scientific literature evaluated to date in the field of self-care of vascular ulcers and the role of nursing in the acquisition of these skills, 30 studies were analyzed with a good level of scientific evidence, which provided important concepts for education in Patient health with vascular ulcers. Conclusions: Topical treatment accompanied by compression therapy, training of the nursing professional to select the indicated therapy and provide health education, generation of support networks, monitoring of the patient\u27s mood and self-esteem.Introducción: las úlceras vasculares son lesiones que se desarrollan principalmente en miembros inferiores, se acompañan de dolor continuo e incapacitante, dificultan la movilidad, alteran la propia imagen corporal y pueden interferir en las actividades de la vida diaria. Las úlceras venosas son graves, ocasionadas por insuficiencia venosa crónica e hipertensión venosa permanente, y la persona que las padece debe recibir cuidados de enfermería integrales, que contribuyan al autocuidado. Objetivo: describir las estrategias que debe tener en cuenta el profesional de enfermería para la promoción del autocuidado en personas con úlceras vasculares venosas. Metodología: revisión integrativa de la literatura. Se realizó búsqueda en bases de datos y recursos electrónicos: Medline a través de PubMed Health, Epistemonikos y SciELO. Se incluyeron artículos de investigación y de revisión relacionados con el problema en estudio, publicados en inglés, portugués o español en el periodo 2010-2020. Estudio sin riesgo, se respetan los derechos de autor. Resultados: se analizó una muestra constituida por 41 publicaciones. Los temas principales producto del análisis fueron: proceso de atención de enfermería y autocuidado, familiarizándose con la úlcera venosa y las opciones terapéuticas, conocimiento de la terapia de compresión, práctica de los estilos de vida saludables. Conclusiones: el cuidado de enfermería al paciente con úlcera venosa debe comenzar por reconocer a la persona desde una perspectiva holística y en reciprocidad con su entorno, lo que implica un proceso de atención integral que va más allá de la úlcera y valora al paciente como un sujeto activo en el cuidado, para que se familiarice con su herida y esté en capacidad de detectar señales de mejoría o de alarma, así como de conocer la terapia de compresión y opciones terapéuticas y de llevar a su cotidianidad la práctica de estilos de vida saludables.Introdução: Úlceras vasculares são lesões que se desenvolvem principalmente nos membros inferiores, são acompanhadas de dores contínuas e incapacitantes, dificultam a mobilidade, alteram a própria imagem corporal e podem interferir nas atividades da vida diária. As úlceras venosas são graves, causadas pela insuficiência venosa crônica e hipertensão venosa permanente, e a pessoa que as sofre deve receber cuidados de enfermagem integrais, o que contribui para o autocuidado. Objetivo: Descrever as estratégias que o profissional de enfermagem deve levar em consideração para promover o autocuidado em pessoas com úlceras vasculares venosas. Metodologia: Revisão integrativa da literatura. Foi realizada busca nas bases de dados e recursos eletrônicos: Epistemonikos, Medline por meio do PubMed Health e SciELO. Foram incluídos artigos de pesquisa e revisão relacionados ao problema em estudo, publicados em inglês, português ou espanhol, no período 2010-2020. Estude sem risco, os direitos autorais são respeitados. Resultados: Foi analisada uma amostra de 41 publicações. Os principais tópicos como produto da análise foram: Cuidados de enfermagem e processo de autocuidado, Conhecendo úlcera venosa e opções terapêuticas, Conhecimento da terapia compressiva, Prática de estilos de vida saudáveis. Conclusões: O cuidado de enfermagem à pessoa com úlcera venosa deve partir do reconhecimento da pessoa em uma perspectiva holística e de reciprocidade com seu meio, o que implica um processo de cuidado integral que vai além da úlcera, que reconhece a pessoa como sujeito ativo no cuidado , para que se familiarize com sua ferida e seja capaz de detectar sinais de melhora ou alarme, que conheça terapia compressiva, bem como outras opções terapêuticas, e que finalmente conduza ao seu cotidiano a prática de estilos de vida saudáveis
