A One-Month Advanced Glycation End Products-Restricted Diet Improves CML, RAGE, Metabolic and Inflammatory Profile in Patients with End-Stage Renal Disease Undergoing Haemodialysis.

Exogenous and endogenous advanced glycation end products (AGEs) contribute to the pathogenesis and progression of renal disease. This is a one-month controlled dietary counseling trial that restricts nutritional AGEs in patients with end-stage renal disease (ESRD) undergoing haemodialysis (n = 22 participants in the intervention and n = 20 participants in the control group). Haematological, biochemical markers, the soluble form of the receptor for AGEs (sRAGE), and carboxymethyl lysine (CML) were measured at baseline and at follow-up. Mononuclear cells were isolated and the protein expression of RAGE and the inflammatory marker COX-2 was measured using Western immunoblotting. The intervention group presented a lower increase in CML compared to the control group (12.39% median change in the intervention vs. 69.34% in the control group, p = 0.013), while RAGE (% mean change -56.54 in the intervention vs. 46.51 in the control group, p < 0.001) and COX-2 (% mean change -37.76 in the intervention vs. 0.27 in the control group, p < 0.001) were reduced compared to the control group. sRAGE was reduced in both groups. In addition, HbA1c (at two months), total cholesterol, and triglycerides were reduced in the intervention versus the control group. The adoption of healthy cooking methods deserves further research as a possible way of modulating inflammatory markers in patients with CKD.

The Association Between Spirituality, Self-Esteem, Anxiety and Depression: A Comparative Exploratory Study Between People with a Spinal Cord Injury and Healthy Subjects in Greece.

The purpose of this study was to evaluate spirituality, religiosity, self-esteem, depression, and stress in people with spinal cord injuries. The Royal Free Questionnaire for Spiritual and Religious Beliefs, the Rosenberg Self-Esteem Scale, the Center for Epidemiologic Studies Depression Scale, and the Spielberger State-Trait Anxiety Scale were all designed for the current study to collect demographic and injury-related information. In the study, 88 patients with traumatic SCI and 88 healthy subjects were included. Half of the participants and healthy subjects were women, while the mean age of the healthy subjects was 42.8 years and that of the subjects was 42.4 years. The majority of participants were Greek (97.2%), while 44.1% were married or with a partner and 43.2% were single. The mean depression and stress score was higher in patients than in healthy subjects, and the mean score of self-esteem was lower in patients than healthy subjects. Multivariable linear regression model showed that patients who believed more that a spiritual force or power outside of ourselves can influence what happens in everyday life had less depression and stress. People with spinal cord injuries experience extreme stress, anxiety, and depression. Spirituality and religiosity can play a significant role in their recuperation, rehabilitation, and adaptation.

The Effect of Spirituality in Quality of Life of Hemodialysis Patients.

This study aimed to assess the effect of spirituality on quality of life of end-stage renal disease patients undergoing hemodialysis (HD). A cross-sectional study was carried out in six HD Units. The sample consisted of 367 patients averaging 61.8 years of age. For the measuring of spirituality and the quality of life, the FACIT-Sp-12 and the Missoula Vitas Quality of Life Index-15, respectively, were completed. Social and demographic data were, also, collected. Spirituality and its dimensions such as Meaning in Life and Peace had a positive effect on Global QoL, Symptoms, Interpersonal and in Well-being. Spirituality can have a positive effect on the QoL of HD patients. Therefore, in the context of the holistic approach of the individual, health systems can include spiritual evaluation and care of HD patients.

Validation of the Trauma and Injury Severity Score for Prediction of Mortality in a Greek Trauma Population.

BACKGROUND: Although the Trauma and Injury Severity Score (TRISS) has been extensively used for mortality risk adjustment in trauma, its applicability in contemporary trauma populations is increasingly questioned. OBJECTIVE: The study aimed to evaluate the predictive performance of the TRISS in its original and revised version and compare these with a recalibrated version, including current data from a Greek trauma population. METHODS: This is a retrospective cohort study of admitted trauma patients conducted in two tertiary Greek hospitals from January 2016 to December 2018. The model algorithm was calculated based on the Major Trauma Outcome Study coefficients (TRISSMTOS), the National Trauma Data Bank coefficients (TRISSNTDB), and reweighted coefficients of logistic regression obtained from a Greek trauma dataset (TRISSGrTD). The primary endpoint was inhospital mortality. Models' prediction was performed using discrimination and calibration statistics. RESULTS: A total of 8,988 trauma patients were included, of whom 854 died (9.5%). The TRISSMTOS displayed excellent discrimination with an area under the curve (AUC) of 0.912 (95% CI 0.902-0.923) and comparable with TRISSNTDB (AUC = 0.908, 95% CI 0.897-0.919, p = .1195). Calibration of both models was poor (Hosmer-Lemeshow test p < .001), tending to underestimate the probability of mortality across almost all risk groups. The TRISSGrTD resulted in statistically significant improvement in discrimination (AUC = 0.927, 95% CI 0.918-0.936, p < .0001) and acceptable calibration (Hosmer-Lemeshow test p = .113). CONCLUSION: In this cohort of Greek trauma patients, the performance of the original TRISS was suboptimal, and there was no evidence that it has benefited from its latest revision. By contrast, a strong case exists for supporting a locally recalibrated version to render the TRISS applicable for mortality prediction and performance benchmarking.

The Effect of Spirituality on Illness Perceptions in Patients Undergoing Hemodialysis : Spirituality and Health.

The aim of this study was to assess the effect of spirituality on illness perceptions of Greek patients on hemodialysis. The cross-sectional study design was employed for this purpose. The sample comprised of 367 patients on hemodialysis. Data were collected via a three-part questionnaire consisting of a sheet containing demographic and clinical information, the Illness Perceptions Questionnaire, and the Functional Assessment of Chronic Illness Therapy-Spiritual Well-Being Scale (FACIT-Sp-12). Data were processed with SPSS V.21, descriptive as well as inferential statistics were applied. The significant level was set at 0.05; 62.1% of the patients in the sample were men and 37.9% women. Their ages ranged from 18 to 92 years old, with an average of 61.80 years old. The findings of the research showed that the spirituality score both total and the subscales leads to a decrease illness perceptions score, meaning that patients perceive the disease as less threatening. The overall score of the Illness Perceptions Questionnaire was above the median, which means that patients perceive their condition as quite threatening. Overall, individual spirituality has a positive impact on the way patients perceive their condition.

Patient Knowledge, Adherence to the Therapeutic Regimen, and Quality of Life in Hemodialysis : Knowledge, Adherence, and Quality of Life in Hemodialysis.

The aim of this study was to investigate the effect of patients' knowledge on adherence to the hemodialysis regimen and Quality of Life (QoL) of patients undergoing hemodialysis as well as the effect of adherence on QoL. Also, the effect of demographic and clinical characteristics on the above three variables was studied. In this cross-sectional study conducted between March and May 2017, 321 patients on hemodialysis from six hemodialysis units completed the Kidney Disease Questionnaire, the GR-Simplified Medication Adherence Questionnaire and the Missoula Vitas Quality of Life Index-15 to measure the patient knowledge, the adherence to hemodialysis regimen, and the QoL, respectively. The statistical analysis was performed via the Statistical Program SPSS 19.0. The statistical significance level was set up at 0.05. The knowledge was independently associated with the overall QoL and its dimension-transcendence-with total adherence and its dimension-diet/fluid adherence. The total adherence was independently associated with overall QoL and its dimensions-symptoms and interpersonal. The educational level, the type of vascular access, and the daily number of pills were independently associated with the total adherence and the overall QoL. Patient knowledge may have an important effect on adherence and QoL. Adherence may have an important effect on QoL. Demographic and clinical characteristics play, also, a crucial role in the above variables. The findings can help nephrology nurses to quantify the extent of non-adherence in hemodialysis and poor quality of life.

Anxiety Status and Coping Strategies in Association with Sociodemographic Factors, Dietary and Lifestyle Habits in Greece.

AIM: The aim of this study was to investigate the relationship between nutritional habits, lifestyle, anxiety, and coping strategies. BACKGROUND: Anxiety is an underestimated and often undiagnosed subclinical disorder that burdens the general public of modern societies and increases illness suscentibility. METHODS: The study group consisted of 693 individuals living in Peloponnese, Greece. A standardized questionnaire that consists of the dietary habits and lifestyle questionnaire, the trait Anxiety STAI-X-2 questionnaire and the brief-COPE questionnaire, was used. Principal components analysis identified the factors from the questionnaires, and stepwise multivariate regression analysis investigated their relationships. RESULTS: Weekly consumption of fruits, tomatoes, salads and lettuce, together with Εmotional/Ιnstrumental support, Denial/Behavioural disengagement, substance use and self-blame, was the most important predictors of anxiety scores. Positive reframing/Humour and Acceptance/Planning are also associated with the Positive STAI factor and decreased anxiety scores. CONCLUSION: Healthy nutritional habits, comprised of consumption of salads and fruits, together with adaptive coping strategies, such as Positive reframing/Humour and Active problem solving, may provide the most profound improvement in the anxiety levels of a healthy population in Peloponnese, Greece.

Exploration of the relationship between stigma and burnout among Greek nurses in dementia care.

OBJECTIVE: To investigate possible correlations between stigma and burnout of nurses and non-graduate professional caregivers of elderly with dementia in nursing homes. BACKGROUND: Research on dementia stigma in health care professionals as well as its relationship with their well-being is seriously lacking. METHODS: This cross-sectional study involved a convenience sample of 171 nurses and other professional caregivers in 16 Greek elderly care units who responded to Maslah Burnout Inventory (ΜΒΙ) as well as the Family Stigma in Alzheimer's Disease Scale (FS-ADS). In order to find adjusted associations between independent variables and the stigma and burnout of professional caregivers, multiple linear regression analysis was used. RESULTS: Cognitive, emotional and behavioural attributions of the three dimensions of stigma were found to be independent predictive factors of burnout's dimensions which indicate that stigma nurses deposit on patients, contributes towards their burnout. CONCLUSION: Educational preparation of geriatric nurses should provide them with the option of seeing dementia as a normal stage of life since reducing stigma can contribute towards preventing and managing professional burnout. IMPLICATIONS FOR NURSING MANAGEMENT: In order to reduce burnout, nurse managers should design lifelong learning programs on the basis of changing the stigmatizing negative cognitive and emotional attitudes of professionals towards dementia.

The impact of education on knowledge, adherence and quality of life among patients on haemodialysis.

PURPOSE: The purpose of the study was to assess the impact of an educational intervention on the level of knowledge, quality of life (QoL) and adherence to the treatment regimen among haemodialysis (HD) patients as well as to describe the association between these variables. METHODS: In this quasi-experimental interventional study, 50 HD patients at a HD centre in Western Attica were randomly assigned into intervention (N = 25, received education and a booklet) and control (N = 25, received only the booklet) groups. Knowledge, adherence and quality of life were measured pre- and post-intervention using the Kidney Disease Questionnaire, the GR-Simplified Medication Adherence Questionnaire-HD and Missoula Vitas Quality of Life Index-15, respectively. The statistical analysis of the data was performed with the help of the Statistical Program SPSS version 19.0. The statistical significance level was set up at 0.05. RESULTS: The increase of knowledge, adherence and QoL levels in the intervention group was significantly higher compared to the control group. There was no significant correlation between knowledge and adherence scores after the intervention. However, a significant positive correlation was found between the change in the overall QoL and the changes in the total adherence score as well as the adherence to the fluids and dietary behaviour. CONCLUSIONS: An educational intervention can improve knowledge, adherence and QoL among HD patients. The increase of knowledge level is not associated with increased adherence. However, the increase of adherence may improve some dimensions of QoL.

Anxiety-Depression of Dialysis Patients and Their Caregivers.

Background and Objectives: Anxiety-depression of patients undergoing hemodialysis has a strong relation with the levels of anxiety-depression of their caregivers. The aim of this study was to evaluate anxiety-depression of dialysis patients and their caregivers. Materials and Methods: In this cross-sectional study, 414 pairs of patients and caregivers from 24 hemodialysis centers of Greece completed the Hospital Anxiety and Depression Scale (HADS). The statistical analysis of the data was performed through the Statistical Program SPSS version 20.0. The statistical significance level was set up at 5%. Results: The mean age of patients was 64 (54.06-72.41) years old and the mean duration of hemodialysis was 36 (16-72) months. The mean age of caregivers was 54 (44-66) years old. Of the total sample, 17.1% (n = 71) of patients had high levels of anxiety and 12.3% (n = 51) had high levels of depression. Additionally, 27.8% (n = 115) of caregivers had high levels of anxiety and 11.4% (n = 47) had high levels of depression. Caregivers had higher levels of anxiety when their patients had high levels of anxiety as well (42.3%). Additionally, they had higher levels of depression when their patients had high levels of depression as well (17.6%). Conclusions: The results of this study showed a significant association between the levels of anxiety and depression among patients and caregivers. There is a necessity for individualized assessment of dialysis patients and their caregivers and the implementation of specific interventions for reducing the levels of anxiety and depression among them.

Mental health, loneliness, and illness perception outcomes in quality of life among young breast cancer patients after mastectomy: the role of breast reconstruction.

PURPOSE: Το explore the relationship between mental health (depression, anxiety, and stress), loneliness, and illness perception with health-related quality of life (HRQoL) in young breast cancer patients, within a year after mastectomy, and to investigate the role of breast reconstruction. METHODS: Eighty-one women with stage II breast cancer-35 with breast reconstruction and 46 without breast reconstruction-completed the Missoula-VITAS Quality of Life Index-15, the Depression Anxiety Stress Scale 21, the UCLA Loneliness Scale, the Brief Illness Perception Questionnaire, and a questionnaire with demographic and medical information. Statistical analysis was performed using IBM SPSS Statistics version 20. RESULTS: Breast reconstruction was a significant predictor of total HRQoL and its domains. Women with breast reconstruction had better HRQoL, significantly better mental health, less stress and anxiety levels but experienced more physical discomfort and perceived higher level of physical distress compared to the ones without breast reconstruction. On the contrary, patients without breast reconstruction had higher level of loneliness, which was found to be correlated with poor HRQoL and higher levels of anxiety. Negative illness perceptions were associated with poor HRQoL for both groups. CONCLUSIONS: Breast reconstruction is not a panacea for patients in improving HRQoL.

The Effect of Nutrition and Sleep Habits on Predisposition for Metabolic Syndrome in Greek Children.

PURPOSE: To investigate the effect of lifestyle habits in childhood Metabolic Syndrome (MTS). DESIGN AND METHODS: Descriptive correlation study with 480 participants (5-12 years old) using a specially designed questionnaire was conducted. Anthropometric and biochemical analyses were performed. RESULTS: Fifteen percent of children exhibited predisposition for MTS. Regarding sleep habits, logistic regression analysis (LRA) showed that hour of sleep -before 22:00- was associated with decreased waist circumference (WC%) (p = .026). Midday siesta was negatively correlated with systolic (SBP) (p = .001) and diastolic blood pressure (DBP) (p = .046). In children without MTS, lack of sleep and night time sleep was positively correlated with DBP (p = .044) and fasting blood glucose (FBG) (p = .005). Regarding nutrition habits, fast food consumption was positively correlated with SBP (p = .006) and meat consumption was positively correlated with both Body Mass Index% (BMI%) (p = .038) and WC% (p = .023). LRA showed that fruit (p = .001) and legume (p = .040) consumption was associated with decreased FBG; fish consumption with decreased Low Density Lipoprotein (LDL) cholesterol (p = .031), vegetable (p = .054) and cereal consumption (p = .012) with decreased DBP. In children with MTS, fruits were associated with increased FBG (p = .034). In children without MTS, meat consumption was associated with increased LDL (p = .024), cereal with increased WC% (p = .002) and olive products with increased High Density Lipoprotein (HDL) cholesterol and BMI% (p = .037). CONCLUSIONS: The adoption of both balanced diet and sleep habits seemed to be crucial for the prevention of MTS. PRACTICE IMPLICATIONS: Clinical health nurses could develop and implement preventive intervention programs in order to avoid metabolic complications in adulthood.

Quality of Life in Elderly Bladder Cancer Patients Following a Cystectomy.

INTRODUCTION: Bladder cancer is the ninth most common cancer worldwide. The most common treatment for invasive cancer is radical cystectomy and urinary diversion (ileal conduit, continent urinary reservoir, orthotopic neobladder). In elderly patients, the standards methods of urinary diversion have been the ileal conduit and ureterocutaneostomy. Quality of life is an important consideration for patients with urinary diversion. PURPOSE: The purpose of the present study was to review the literature on quality of life in elderly patients with bladder cancer following a cystectomy and urinary diversion. MATERIAL AND METHOD: A literature review was conducted using the electronic databases PubMed and Google scholar covering the period of time from 2006 to 2016. The following key words were entered: "quality of life", "bladder cancer", "elderly" "cystectomy" and a combination thereof. The exclusion criteria for the articles were languages other than English. RESULTS: It was found that various questionnaires were used. Some instruments measure QoL in general, whereas others are more specific with respect to the unique ways in which urinary diversion can impact patients' lives. Furthermore, some findings are contradictory, with certain results indicating that there is no statistically significant difference between quality of life parameters when comparing patients with a neobladder to those with an ileal conduit. In another study, patients who underwent orthotopic neobladder reconstruction reported significantly better physical functioning, role functioning, social functioning and QoL in general throughout the first postoperative months compared to patients who had ileal conduit formation. CONCLUSIONS: All types of treatment have a number of advantages and disadvantages, the details of which should be explained to elderly patients thoroughly. This calls for comprehensive counseling sessions during which the patient and health professional discuss all relevant considerations.

Association of Type 1 Diabetes, Social Support, Illness and Treatment Perception with Health Related Quality of Life.

This study examines the importance of perceived social support, perception of illness and treatment on health related quality of life (HRQOL) in patients with type 1 diabetes. The purpose was to assess how type 1 diabetes, perceived social support, perception of the illness and treatment can be predictors of health related quality of life and how these factors associate. Additional purpose was to establish the reliability of Illness Index and Treatment Index among Greek population. Four questionnaires were used, the Missoula-VITAS Quality of Life Index-15 (MVQoLI-15), the Multidimensional Scale of Perceived Social Support (MSPSS), the Illness Index, and the Treatment Index. Participants were type 1 diabetics. The sample consists of 60 volunteers, 19 males and 41 females. All participants were Greeks. There was a correlation between variables of social support, treatment and illness index and the variables of HRQOL. Several domains of social support, the illness and treatment perception, are statistically significant predictors of the total HRQOL. Treatment and Illness Scales were found highly reliable among Greek population (20 items; α = 0.93). Results suggest that social support interacts with relationships, spirituality and the total QOL. Family interacts with spirituality and total QOL. This study indicates friends as the most important and positive factor towards most of the HR-QOL's subsections. Findings support that perception of the condition (II) and perception of the treatment (TI) are predictors of HRQOL. This study aims to establish the reliability of Illness and Treatment Index among Greek population.

Musculoskeletal Problems Among Greek Perioperative Nurses in Regional Hospitals in Southern Peloponnese : Musculoskeletal Problems in Perioperative Nurses.

The surgery unit is a particularly labor-intensive environment in the hospital. Studies reflect the correlation of labor risk factors for musculoskeletal injuries among nurses but few have investigated the relationship to perioperative nurses. The purpose of this study is the identification and definition of ergonomic risk factors in the operating room and their connection with musculoskeletal disorders in perioperative nurses in regional hospitals in Greece. Forty four Greek perioperative nurses working in regional hospitals in southern Peloponnese participated. Anonymous self-administered questionnaire was used to collect the data, which consisted of three parts (investigating musculoskeletal symptoms, description of work, psychometric evaluation). The analysis was done with the statistical program SPSS.19. Symptoms of musculoskeletal problems emerged. Specifically, 54.4% in the lumbar, 47.7% in the neck, 45.5% in the shoulder, followed by smaller percentages of the hip, knee, elbow and ankle. 6.8% of participants indicated no musculoskeletal symptoms in the last year while 74.9% of those who had symptoms presented them in two or more areas. Activities rated as a major problem among others were the manual handling, tools with weight and vibration etc. 100% of respondents agreed that the work in the surgery unit is demanding and has anxiety. The lack of support from the government (81.8%), combined with the low perioperative nurses (6.8%) having the opportunity to participate in administrative decisions concerning them were related to problems in the organization and management of work. Apart from engineers target factors, a main aim should be the organization of work within the framework of a national policy based on European directives on the protection and promotion of the health and safety of workers.

Quality of Life in Elderly Cancer Patients Undergoing Chemotherapy.

INTRODUCTION: As life expectancy increases, it is expected that 60% of all cases of cancer will be detected in elderly patients in the next two decades. Cancer treatment for older persons is complicated by a number of factors, thus negatively affecting patients' quality of life. PURPOSE: The purpose of this study is to investigate quality of life in elderly cancer patients undergoing chemotherapy. MATERIAL AND METHOD: This study was descriptive and non-experimental. It was conducted in one large hospital in a major city of Northern Greece. The sample was convenience comprising 53 elderly cancer patients undergoing cycle 3 chemotherapy. The data was collected using the Functional Assessment of Cancer Therapy scale and included questions related to demographic and clinical characteristics. RESULTS: The majority of participants were men (n = 27, 50.9%) who were married (n = 32, 79.5%). Their mean age was 70.07 ± 3.60. Almost half of the sample (n = 30, 56.6%) had colon cancer. There was a statistical significant difference between men and women pertaining to physical wellbeing (p = 0.004) and overall quality of life (p < 0.001). When comparing each subscale with the patients' marital status it was found that there was a statistical difference with respect to social/family wellbeing (p = 0.029), functional wellbeing (p = 0.09) and overall quality of life (p < 0.001). Moreover, the type of cancer affected overall quality of life (p < 0.001) and social/family wellbeing (p = 0.029). CONCLUSIONS: These findings call attention to quality of life and its related factors in elderly cancer patients. It is highly recommended to envisage measures for improving quality of life in this group of cancer patients.

Does Health Perception, Dietary Habits and Lifestyle Effect Optimism? A Quantitative and Qualitative Study.

The aim of the study was to investigate the relationship between optimism, general health perception, nutritional habits and lifestyle. A quantitative study was conducted on 500 Greek adults. A standardized questionnaire was used which consisted of the General Health Self-Assessment Questionnaire (GHSAQ), the Life Orientation Test-Revised (GrLOT-R), the dietary habits and lifestyle questionnaire. A qualitative study was conducted through interviews and focus groups. Participants' average score of GrLot-R was 20.47 (±4.017) units. The highest GrLot-R score was statistically correlated to more frequent consumption of fruits, salads, dairy products, olive oil, high-fibre cereals and water and to the lower consumption of canned products. Multivariate analysis showed that optimism is significantly positively predicted by the factors "Vitamin K & A", "Vitamin C", and negatively by "Preservatives." There was also a positive correlation between GrLot-R and GHSAQ. The qualitative study analysis showed that physical exercise, duration/quality of sleeping, family and stress affected participants' optimism. It seems that intrinsic factors as vitamins, preservatives, a healthy lifestyle and extrinsic factors as the family background and the environment that someone is raised, affect the level of optimism.

Application of Theranostics in Oncology.

In recent years, due to the development of nanotechnology new horizons in treatment and diagnosis of cancer open up. Development of nano-systems for simultaneous transfer of active substances and imaging of tumor regions gathers an important amount of scientific interest. This new category of nano-systems is called Theranostics. Theranostics methods can provide multiple benefits by inserting nanoparticles into the patient and using photodynamic therapy and pave the way for personalized medicine. The objective of this paper is to study the use and application of Theranostics in the diagnosis and treatment of cancer, in order to achieve personalized anticancer treatment. For this purpose, investigation of existing literature has been conducted using electronic databases, PubMed, Google Scholar and IEEE Xplore. In addition, there was a secondary research phase, using paper citations found during the first research phase. It has to be pointed out that nanoparticles are the basis of Theranostics, since, due to their properties, they provide the ability to display accurate imaging and provide diagnosis along with simultaneous treatment of diseases. Theranostics methods may be applied in treatment of esophageal cancer, prostate cancer, breast cancer, in treatment of actinic keratosis, actinic cheilitis and Bowen's disease and in treatment of basal cell epithelioma and macular degeneration. As a result, application of Theranostics can provide multiple benefits by inserting nanoparticles into the patient. This method is currently encountering many challenges, but continuation of research on the field is necessary not only for the improvement of the medical field and the healthcare techniques, but also for the creation of new treatment methods for patients with diseases that are incurable until now.

Applications for Electrical Impedance Tomography (EIT) and Electrical Properties of the Human Body.

Electrical Impedance Tomography (EIT) is a promising application that displays changes in conductivity within a body. The basic principle of the method is the repeated measurement of surface voltages of a body, which are a result of rolling injection of known and small-volume sinusoidal AC current to the body through the electrodes attached to its surface. This method finds application in biomedicine, biology and geology. The objective of this paper is to present the applications of Electrical Impedance Tomography, along with the method's capabilities and limitations due to the electrical properties of the human body. For this purpose, investigation of existing literature has been conducted, using electronic databases, PubMed, Google Scholar and IEEE Xplore. In addition, there was a secondary research phase, using paper citations found during the first research phase. It should be noted that Electrical Impedance Tomography finds use in a plethora of medical applications, as the different tissues of the body have different conductivities and dielectric constants. Main applications of EIT include imaging of lung function, diagnosis of pulmonary embolism, detection of tumors in the chest area and diagnosis and distinction of ischemic and hemorrhagic stroke. EIT advantages include portability, low cost and safety, which the method provide, since it is a noninvasive imaging method that does not cause damage to the body. The main disadvantage of the method, which blocks its wider spread, appears in the image composition from the voltage measurements, which are conducted by electrodes placed on the periphery of the body, because the injected currents are affected nonlinearly by the general distribution of the electrical properties of the body. Furthermore, the complex impedance of the skin-electrode interface can be modelled by using a capacitor and two resistor, as a result of skin properties. In conclusion, Electrical Impedance Tomography is a promising method for the development of noninvasive diagnostic medicine, since it is able to provide imaging of the interior of the human body in real time without causing harm or putting the human body in risk.

Safe Use of Defibrillators: A Case Study in Greek Registered Nurses.

International literature reveals the deficit of nurses' knowledge on the defibrillator and the need to implement continuing education training courses relative to clinical issues.The purpose of this study was the evaluation of Greek registered nurses' knowledge on the safe use of the defibrillator before and after a 2-h workshop. Anonymous self-administered validated questionnaire consisted of two parts was used to collect the data, after the written consent of the participants. The sample consisted of 65 participants (12 men and 53 women) and the output data were analyzed with SPSS v. 19.0 (SPSS Inc., Chicago, IL). The quantitative variables are expressed as mean values (SD) or as median values (interquartile range = IQR) while the qualitative variables are expressed as absolute and relative frequencies. For the comparison of the proportions of the correct answers before and after the intervention, McNemar tests were used. A knowledge score was computed for every participant from all correct answers and converted to a scale from 0 to 100 (where 0 = none correct answer and 100 = all answers were correct). Paired Student's t-tests were used for the comparison of the knowledge score before and after the intervention. All reported p values are two-tailed and the statistical significance was set at p < 0.05. The mean knowledge score increased significantly from 66.7% to 91.3% after the intervention. The study showed that the implementation of educational programs contributes positively to update registered nurses' knowledge on clinical issues, which cannot be replenished only through undergraduate education and experience.