Technology and Health Care - Volume Pre-press, issue Pre-press
Purchase individual online access for 1 year to this journal.
Price: EUR 150.00
Impact Factor 2019: 0.787
Technology and Health Care is intended to serve as a forum for the presentation of original articles and technical notes, observing rigorous scientific standards. Furthermore, upon invitation, reviews, tutorials, discussion papers and minisymposia are featured.
The following types of contributions and areas are considered:
1. Original articles:
Technology development in medicine: New concepts, procedures and devices associated with the use of technology in medical research and clinical practice are presented to a readership with a widespread background in engineering and/or medicine.
Significance of medical technology and informatics for healthcare: The appropriateness, efficacy and usefulness deriving from the application of engineering methods, devices and informatics in medicine and with respect to public health are discussed.
2. Technical notes:
Short communications on novel technical developments with relevance for clinical medicine.
3. Reviews and tutorials (upon invitation only):
Tutorial and educational articles for persons with a primarily medical background on principles of engineering with particular significance for biomedical applications and vice versa are presented.
4. Minisymposia (upon invitation only):
Under the leadership of a Special Editor, controversial issues relating to healthcare are highlighted and discussed by various authors.
Abstract: BACKGROUND : Fractures of the talus often lead to permanent restrictions of the affected limb. Possible alterations after these fractures in gait have not been evaluated yet. OBJECTIVE: To evaluate possible alterations of gait by pedybarography after talar fractures. METHODS: We conducted a retrospective single-centre study at a level I trauma center. Twenty patients with operatively treated talar fractures were followed up. Objective and subjective function of the ankle was measured using range of motion, clinical scores and dynamic pedobarography (emed-M; Novel, Germany). RESULTS: There were 11 talar neck and 9…talar body fractures. All patients received screw fixation. There was a significant reduction in range of motion. The outcome was moderate to satisfying and the severity of the injury correlated with the clinical outcome and the range of motion. The presence of posttraumatic arthritis and joint incongruity lead to a decreased function of ankle and subtalar joint and resulted in a worse clinical outcome. AVN rate was associated to initial displacement. Dynamic pedobarography showed no significant changes in gait pattern. CONCLUSIONS: Fractures of the talus lead to dissatisfaction, pain and malfunction. However, a change in gait pattern could not be proved.
Abstract: BACKGROUND: The gait ability of stroke patients is highly related with trunk control. Studies that addressed the effects of trunk control training using visual feedback on gait parameters of stroke patients are lacking. OBJECTIVE: The purpose of this study was to investigate the role of smartphone-based visual feedback trunk control training for improvement of trunk control and spatio-temporal gait parameter in stroke patients. METHODS: Twenty-four stroke patients participated in this study. Participants were randomly allocated to the experimental and control groups. Both groups completed conventional rehabilitation over 4 weeks. The experimental group additionally…received smartphone-based visual feedback trunk control training for 4 weeks. The primary outcome of this study was evaluated by trunk impairment scale and spatio-temporal gait parameters. RESULTS: The trunk impairment scale in the experimental group was significantly improved compared to the control group (P < 0.05). The spatio-temporal gait parameters are significantly more different in the experimental group than in the control group (P < 0.05). CONCLUSIONS: Additional smartphone-based visual feedback trunk control training may improve trunk control and spatio-temporal gait parameter in chronic stroke patients.
Abstract: BACKGROUND: Clinicians routinely encounter the endodontically treated teeth with wide flared canals and mineral trioxide aggregate (MTA) repair on the canal wall. OBJECTIVE: To assess the effect of customized glass reinforced composite (FRC) post and reshaped root canal along with different acid etching protocol of MTA surface on push-out bond strength (PBS) in flared, MTA repaired root canal. METHODS: Ninety recently extracted single-rooted premolar teeth were sequentially subjected to root canal obturation, post space preparation, flaring, and MTA application. The samples were randomly divided into 3 groups of control, customized FRC post by…relining with self-adhesive resin cement and reshaping the canal with flowable composite. Each group was subdivided into 3 subgroups (n = 10) as control, 37% H 3 PO 4 and 19% EDTA etching of MTA surface. Teeth samples cemented with FRC post were sectioned into 2 mm and push-out testing. RESULTS: Control group had the lowest PBS at 1.988 N. The PBS values for the groups with customized post relining were 8.489 N, 8.888 N and 7.911 N for control, H 3 PO 4 etch and EDTA etch. The corresponding PBS values for root canal reshaping were 7.323 N, 8.318 N and 7.785 N. CONCLUSIONS: Customized FRC post with 37% H 3 PO 4 etching is advised for the flared and MTA repaired root canals.
Keywords: Flared root canal, mineral trioxide aggregate, customized fiber post, root canal reshaping
Abstract: Analysis of human brain activity is an important topic in human neuroscience. Human brain activity can be studied by analyzing the electroencephalography (EEG) signal. In this way, scientists have employed several techniques that investigate nonlinear dynamics of EEG signals. Fractal theory as a promising technique has shown its capabilities to analyze the nonlinear dynamics of time series. Since EEG signals have fractal patterns, in this research we analyze the variations of fractal dynamics of EEG signals between four datasets that were collected from healthy subjects with open-eyes and close-eyes conditions, patients with epilepsy who did and patients who did not…face seizures. The obtained results showed that EEG signal during seizure has greatest complexity and the EEG signal during the seizure-free interval has lowest complexity. In order to verify the obtained results in case of fractal analysis, we employ approximate entropy, which indicates the randomness of time series. The obtained results in case of approximate entropy certified the fractal analysis results. The obtained results in this research show the effectiveness of fractal theory to investigate the nonlinear structure of EEG signal between different conditions.
Abstract: BACKGROUND: It is necessary to adjust and mediate environmental, personal, and structural aspects to reduce the turnover rate among healthcare nurses, and awareness of flexible work systems, organizational commitment and quality of life are factors contained in this category. OBJECTIVE: The purpose of this study was to identify the influence of awareness regarding flexible work systems, organizational commitment, and quality of life on turnover intentions among healthcare nurses. METHODS: Two hundred and twenty-six healthcare nurses participated in the study. Data were collected from September 1 to October 1, 2018, and analyzed using SPSS/WIN…23.0 version. RESULTS: The results in the first analysis revealed that being dissatisfied with work (β = 0.287) and having poor subjective health (β = 0.197) were significant influencing factors with a combined explanatory power of 14.9% (p < 0.001). In the second analysis, dissatisfied with work satisfaction (β = 0.143), organizational commitment (β = - 0.389), and quality of life (β = 0.256) were significant influencing factors with a combined explanatory power of 29.5% (p < 0.001) CONCLUSION: It is necessary to reflect awareness of flexible work systems, organizational commitment and quality of life in interventions to reduce the turnover intention of healthcare nurses.
Abstract: BACKGROUND: We aimed to evaluate the antimicrobial effect of the Nelumbo nucifera leaf extract. There have been no studies related to dental caries inducing bacteria up to now. OBJECTIVE: This study reviewed the inhibitory effect of glucose transferase (GTase) activation and acid production to confirm the anticariogenic activity of Nelumbo nucifera leaf extract. METHODS: This study used 100 g Nelumbo nucifera leaves cultivated in Yeongcheon-si, Gyeongbuk, after adding 70% methanol tenfold. The leaves were then concentrated (Gotary vacuum evaporator; N-Nseries, EYELA Co., Japan) and were placed under an aspirator (A-3S, EYELA Co., Japan)…and a freeze dryer (Ilshin Lab Co., Korea). The anticariogenic effect of Nelumbo nucifera leaves extract was investigated using the growth inhibitory effect, as well as GTase activation. RESULTS: Among the nine kinds of oral-disease-causing bacteria, the Nelumbo nucifera leaf extract most effectively inhibited the growth of Streptococcus anginosus (S. anginosus), but it was difficult to inhibit the growth of Streptococcus oralis (S. oralis). For the anticariogenic effect of Nelumbo nucifera leaf extract, GTase activation was inhibited by at least 50% in all the nine types of bacteria, including Streptococcus mutans (S. mutans). It was shown that Nelumbo nucifera leaf extract had the strongest GTase activation inhibitory effect (85%) in S. anginosus. In addition, Nelumbo nucifera leaf extract showed an acid production inhibitory effect in the nine types of strains by maintaining almost pH 6.2 even after being cultured for 24 hours in the Nelumbo-nucifera-leaf-extract-added culture, while the control culture without Nelumbo nucifera leaf extract showed only about pH 5.0 after 4 hours. CONCLUSIONS: In conclusion, Nelumbo nucifera leaf extract showed the strongest GTase activation inhibitory effect in S. anginosus. Based on this, it was confirmed that Nelumbo nucifera leaf extract showed anticariogenic activity against oral cavity disease microorganisms.
Abstract: BACKGROUND: Due to environmental factors such as nutrient intake imbalance, lack of exercise, and increased stress, it is necessary to control nutrition in order to prevent diseases and provide treatment in terms of healthcare. OBJECTIVE: This study proposes the activity-based nutrition management model with the use of the cluster analysis of similar group for healthcare. METHODS: The proposed method is to conduct the cluster analysis of similar group for nutrition management and to develop the real-time activity information based nutrition management algorithm with the use of big data in order to improve the…quality of healthcare management service. It is to re-process an existing nutrition database and add voice recognition function in line with the service so as to improve convenience of intake-food inputs. In addition, the Bluetooth Low Energy (BLE) communication based standard collection of bio signals occurring in real-time is developed. This study also proposes the method of improving an existing algorithm of drawing a daily recommended allowance with the use of real-time activity information, and the proposed service provides the essential information of nutrition management with the use of public big data. RESULTS: To verify the developed technology and service model and its effectiveness, the nutrition management service system is designed and developed with human interface. CONCLUSIONS: The developed health model helps to solve the obesity problem, save medical costs, and address the issue of national health.
Keywords: Big data, algorithm, ICT, nutrition management, healthcare service
Abstract: BACKGROUND: Humans supply a variety of nutrients to their body in dietary life, which are directly related to health. Chronic diseases are long accumulated in the body on account of heredity or living habits, and draw attention as a main issue in the era of disease-controlled longevity. Therefore, it is essential to make health care continuously through the improvement in dietary habits. OBJECTIVE: By recommending alternative food products whose diet and nutrition structure is similar to that of the food products positively influencing users’ health conditions, it is possible to satisfy user’s health and preference.…METHOD: We used the hybrid clustering based food recommendation method that uses chronic disease based clustering, diet and nutrition ontology, diet and nutrition knowledge base. Active users are classified into the chronic disease based cluster that has the nearest euclidean distance. According to the classified clusters, food products are recommended to users, and similar food products are also recommended with the use of food clustering and knowledge base. Food products are clustered with the uses of k-means algorithm and food and nutrient data system. Based on the created food clusters and food preference data, diet and nutrition knowledge base is generated. It is composed of food cluster filter, food similarity filter, universal preference filter, and user feedback filter. The universal preference filter represents the similarity weight between diet and nutrition, and user preference. The user feedback filter has the similarity weight between active user preference and diet and nutrition. They continue to be updated through associated feedback. RESULT: The proposed health decision-making method takes into account each user’s health condition so that the method has more precision than an existing recommendation method. In addition, the proposed method brings about better evaluation results than a general user-by-user health context information based recommendation method. CONCLUSION: By recommending the food products related to users’ chronic diseases through the proposed hybrid clustering, it is possible to help out their healthcare. In addition, by letting users receive satisfying feedback flexibly, it is possible to improve their dietary habits.
Abstract: OBJECTIVE: This study aims to investigate failure factors in retrograde wire-guided cannulation (retrograde approach) for the treatment of coronary chronic total occlusion (CTO). METHODS: Data of 285 patients treated for CTO using retrograde approach in the General Hospital of Shenyang Military Region from August 2004 to May 2016 were collected. RESULTS: The average age of the 285 patients was 63.89 ± 11.3 years old. Multivariate analysis revealed that the operation risk factors include the number of diseased vessels, collateral circulation, as well as whether anterograde intervention for CTO target vessels…was previously performed (OR = 0.875, 95% CI = 0.779–0.940, P = 0.026) and whether other vessels were intervened (OR = 22.372, 95% CI = 2.059–243.031, P = 0.011). CONCLUSION: Based on the present study, the success rate of retrograde approach for CTO was negatively correlated with the number of diseased vessels and collateral circulation. It was furthermore of importance whether anterograde intervention for CTO target vessels was previously performed and whether other vessels beside CTO vessels were intervened, which were also risk factors.