Exploring factors affecting the acceptance of fall detection technology among older adults and their families: a content analysis.

BACKGROUND: This study conducted in-depth interviews to explore the factors that influence the adoption of fall detection technology among older adults and their families, providing a valuable evaluation framework for healthcare providers in the field of fall detection, with the ultimate goal of assisting older adults immediately and effectively when falls occur. METHODS: The method employed a qualitative approach, utilizing semi-structured interviews with 30 older adults and 29 families, focusing on their perspectives and expectations of fall detection technology. Purposive sampling ensured representation from older adults with conditions such as Parkinson's, dementia, and stroke. RESULTS: The results reveal key considerations influencing the adoption of fall-detection devices, including health factors, reliance on human care, personal comfort, awareness of market alternatives, attitude towards technology, financial concerns, and expectations for fall detection technology. CONCLUSIONS: This study identifies seven key factors influencing the adoption of fall detection technology among older adults and their families. The conclusion highlights the need to address these factors to encourage adoption, advocating for user-centered, safe, and affordable technology. This research provides valuable insights for the development of fall detection technology, aiming to enhance the safety of older adults and reduce the caregiving burden.

Mediating effect of social support on the relationship between social activity and depressive symptoms among older widows in Taiwan.

The purpose of this study was to investigate the mediating effect of social support on the relationship between social activity and depressive symptoms among older widows in Taiwan. A cross-sectional study was conducted that recruited 256 older widows in southern Taiwan. Data were collected on demographic characteristics, self-rated health, instrumental activities of daily living, social activity, social support, and depression. Multiple linear regressions performed examined whether social activities and social support were significantly associated with depressive symptoms and which types of social activity were significantly related to social support and depressive symptoms. Mediation analyses performed tested the mediation effect of social support between the number of different types of social activities performed (termed "number of activities" in this study) and depression. Overall, 17.2% of the participants reported having at least two depressive symptoms. The total effect of the number of activities on depressive symptoms was significant (p < .001). The direct pathway from the number of activities to depressive symptoms remained significant (p < .001), and the mediation pathway (from the number of activities to depressive symptoms through social support) was also significant (Bootstrap CI = -.072, -.003). These findings demonstrated that older widows had more social support when they participated in more social activities, which could then decrease depressive symptoms. In addition, informal community group activities and religious group activities were the most effective at increasing social support and reducing depressive symptoms among the older Taiwanese widows.

Four Sessions of Combining Wearable Devices and Heart Rate Variability (HRV) Biofeedback are Needed to Increase HRV Indices and Decrease Breathing Rates.

Heart rate variability biofeedback (HRVB) is a behavioral intervention that uses resonance frequency breathing to synchronize the heart rate and breathing patterns. This study aimed to explore how many sessions of wearable HRVB devices are needed to increase the HRV index and decrease breathing rates and to compare the HRVB protocol with other psychological intervention programs in HRV indices and breathing rates. Sixty-four participants were randomly assigned to either the HRVB or relaxation training (RT) group. Both groups received interbeat intervals (IBIs) and breathing rates measurement at the pre-training baseline, during training, and post-training baseline from weeks 1 to 4. IBIs were transformed into HRV indices as the index of the autonomic nervous system. The Group × Week interaction effects significantly in HRV indices and breathing rates. The between-group comparison found a significant increase in HRV indices and decreased breathing rates in the HRVB group than in the RT group at week 4. The within-session comparison in the HRVB group revealed significantly increased HRV indices and decreased breathing rates at weeks 3 and 4 than at weeks 1 and 2. There was a significant increase in HRV indices and a decrease in breathing rates at mid- and post-training than pre-training in the HRVB group. Therefore, 4 weeks of HRVB combined with a wearable device are needed in increasing HRV indices and decrease breathing rates compared to the relaxation training. Three weeks of HRVB training are the minimum requirement for increasing HRV indices and reducing breathing rates compared to the first week of HRVB.

Factors impacting the demonstration of relational autonomy in medical decision-making: A meta-synthesis.

BACKGROUND: Relational autonomy is an alternative concept of autonomy in which an individual is recognized as embedded into society and influenced by relational factors. Social context, including social location, political structure, and social forces, significantly influence an agent to develop and exercise autonomy skills. The relational approach has been applied in clinical practice to identify relational factors impacting patient autonomy and decision-making, yet there is a knowledge gap in how these factors influence the demonstration of relational autonomy in the context of medical decisions of adults. OBJECTIVE: The present study targeted the existing knowledge of what and how relational factors impact individuals making medical decisions using the theoretical framework of relational autonomy. METHODS: A meta-synthesis study was utilized. Four electronic databases, including Embase, OVID Medline, CINAHL, and PubMed, were searched, along with gray literature and reference lists, to identify relevant studies. RESULTS: 23 studies reporting 21 qualitative and two mixed-method studies were reviewed. Four themes emerged from the qualitative findings: (1) supportive relationships facilitate an individual's relational autonomy; (2) obtaining comprehensive information from broader sources helps individuals exercise relational autonomy; (3) undue family pressure impedes the exercising of patient relational autonomy; and (4) healthcare providers' dominant voice hampers the demonstration of relational autonomy. CONCLUSIONS: Applying relational autonomy to assist adults in making well-considered decisions is essential. The meta-synthesis suggests establishing a supportive relationship between individuals, healthcare providers, and family. A supportive relationship will allow healthcare providers to make judgments in line with an individual's values and wishes with the aim of promoting relational autonomy. Advance care planning was proposed as the effective solution to obtain a consensus between individuals and their families while respecting an individual's values and preferences. Furthermore, it is considered crucial for healthcare providers to appreciate an individual's values and incorporate their preferences into recommendations.

Two-way comparison of brain perfusion image processing software for patients with acute ischemic strokes in real-world.

PURPOSE: Perfusion imaging generates multimaps of ischemic tissues and is a proven decision-making tool in patients with acute ischemic stroke. However, the reliability of perfusion post-processing outcomes has been debated, given disparate results of various software applications, especially for patients with small ischemic core volume. This study was undertaken to compare ischemic volume estimates determined by imSTROKE (a software with new imaging protocol) and RAPID computer applications, respectively. METHODS: A total of 611 patients qualified for study, each having met inclusion and exclusion criteria of the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands (MR CLEAN trial). Subjects were examined by computed tomography perfusion (CTP) imaging (n = 349) or perfusion-weighted (PWI) and diffusion-weighted (DWI) imaging (n = 262). Ischemic volumes estimated by imSTROKE and RAPID applications were then compared. We used Bland-Altman analysis and intraclass correlation coefficients (ICCs) to ascertain agreement between applications. Accuracies of estimated core infarct and penumbra volumes were tested at specific thresholds (core: 25 mL, 50 mL, and 70 mL; penumbra: 45 mL, 90 mL, and 125 mL). RESULTS: Median core infarct volumes by imSTROKE and RAPID were 29.18 mL and 29.53 mL, respectively (ICC = 0.9880, 95% confidence interval [CI]: 0.9860-0.9898). Median penumbra volumes by imSTROKE and RAPID were 68.20 mL and 68.55 mL, respectively (ICC = 0.9885, 95% CI: 0.9865-0.9902). CONCLUSION: In estimating core infarct and penumbra volumes, imSTROKE and RAPID applications showed high-level agreement. For patients with small ischemic core volume, compared with RAPID, imSTROKE may have better sensitivity.

The relationships between self-efficacy, self-care ability, and burnout and compassion satisfaction among hospice staff in Taiwan.

OBJECTIVES: Professional quality of life involves the negative and positive effects of proving care to terminal patients on health care professionals, including burnout and compassion satisfaction. Around 18% of hospice staff have experienced burnout, and few studies explore the role of an innate ability to cope with burnout. The aim of this study was to explore the significant predictors of burnout and compassion satisfaction as well as the coping strategies among hospice staff in Taiwan. METHODS: A cross-sectional study was conducted, and 220 hospice staff were recruited. Standardized questionnaires were used to collect self-rated stress and growth due to hospice care, self-efficacy, self-awareness, and managing emotion. RESULTS: Hospice staff who perceived higher stress and lower growth due to hospice care and had lower self-efficacy in providing hospice care experienced higher burnout and lower compassion satisfaction. Those who had a lower level of ability related to self-awareness and managing emotion tended to experience higher burnout. The common coping strategies included seeking social support, taking professional courses for clinical skills, and developing hobbies. CONCLUSION: Hospice staff have to develop professional abilities in regard to hospice care as well as an ability to maintain awareness and manage emotions related to work.

An educational bereavement program to decrease clinical staff's barriers and improve self-efficacy of providing bereavement care.

PURPOSE: Clinicians face personal barriers that impede the provision of bereavement care and require education in hospice care. This study aims to investigate the effects of an educational bereavement program on emotional and cognitive barriers, self-efficacy, and professional quality of life among clinicians in hospice care. METHODS: A pretest-posttest design was implemented. A total of 194 clinicians with working experience in hospice care were recruited. The participants underwent a 12-h workshop. The content included lectures, role-play, and group discussion. Emotional and cognitive barriers, self-efficacy, and professional quality of life were measured before and after the program and at 3-month follow-up. RESULTS: After the educational program, negative emotional barriers (F (2, 386) = 17.07, p < 0.001), lack of ability (F (2, 386) = 20.11, p < 0.001), belief in avoidance (F (2, 386) = 7.10, p = 0.001), outcome expectancy (F (2, 386) = 11.32, p < 0.001), and burnout (F (2, 386) = 5.59, p = 0.005) decreased significantly. Self-efficacy (F (2, 386) = 5.37, p = 0.006) and compassion satisfaction (F (2, 386) = 127.99, p < 0.001) increased significantly. CONCLUSION: The educational program addressed personal barriers to bereavement care. Role-play and group discussion about emotional and cognitive barriers can reduce barriers and improve self-efficacy in clinicians in hospice care.

Difficulties and countermeasures in implementing age-friendly policies in primary health centers in Taiwan.

BACKGROUND: Taiwan is predicted to become a super-aged society by 2025, and primary health centers (PHCs) are set to play a crucial role in the care of older adults. The Taiwanese government has developed an age-friendly verification framework for PHC. The aims of this study were to explore the difficulties faced by PHC staff in the implementation of age-friendly policies and their solution strategies. METHODS: This study adopted a qualitative research method. The first stage involved conducting five focus groups with the responsible staff of PHCs (n = 41) that have been certified "age-friendly." The focus groups covered the effectiveness, difficulties, and resources of PHCs in regards to the introduction of age-friendly policies. In the second stage, in-depth interviews were conducted with executives of PHCs (n = 5), both certified and not certified as age-friendly, to further compare the difficulties faced by these two types of PHCs, thereby gaining perspectives for solution strategies. The principles of grounded theory were used for data analysis. RESULTS: Four major PHC strategies are employed in the promotion of age-friendliness. First, organizational management, through which managers apply management methods and analyze the present PHC-related health concerns; second, resource utilization, which refers to the tallying, linking, and integrating of resources; third, business operation process, in which work efficiency is improved through the combination of business operations and staff training; finally, hardware improvement, which is achieved through comprehensive cataloging of facility environments. CONCLUSION: The implementation of age-friendliness in PHCs requires the efforts of both the service units and government. With resources provided by the government, PHCs can integrate management methods, businesses operations, and essential resources. Moreover, PHC executives can lead their teams in promoting age-friendly policies, and closely monitor their effectiveness.

The Effects of Heart Rate Variability (HRV) Biofeedback on HRV Reactivity and Recovery During and After Anger Recall Task for Patients with Coronary Artery Disease.

Patients with coronary artery disease (CAD) often experience anger events before cardiovascular events. Anger is a psychological risk factor and causes underlying psychophysiological mechanisms to lose balance of the autonomic nervous system (ANS). The heart rate variability (HRV) was the common index for ANS regulation. It has been confirmed that heart rate variability biofeedback (HRV-BF) restored ANS balance in patients with CAD during the resting state. However, the effects of HRV-BF during and after the anger event remain unknown. This study aimed to examine the effects of HRV-BF on ANS reactivity and recovery during the anger recall task in patients with CAD. This study was a randomized control trial with a wait-list control group design, with forty patients in the HRV-BF group (for six sessions) and 44 patients in the control group. All patients received five stages of an anger recall task, including baseline, neutral recall task, neutral recovery, anger recall task, and anger recovery. HRV reactivity in the HRV-BF group at the post-test was lower than that in the control group. HRV recovery at the post-test in the HRV-BF group was higher than that in the control group. The HRV-BF reduced ANS reactivity during anger events and increased ANS recovery after anger events for CAD patients. The possible mechanisms of HRV-BF may increase total HRV, ANS regulation, and baroreflex activation at anger events for patients with CAD, and may be a suitable program for cardiac rehabilitation.

Consideration factors of older adults seeking medical treatment at outpatient services in Taiwan.

BACKGROUND: Taiwan will become a super-aged society by 2025, leading to the more frequent use of outpatient services by older adults for medical treatment compared with other age groups. Understanding the outpatient service consideration factors of older adults seeking medical treatment can improve health care quality. This study explored the selection factors and crucial considerations of older adults for outpatient services. METHODS: Qualitative study was conducted. Purposive sampling was used to recruit 16 older adults over 65 years of age with chronic disease who were patients of an internal medicine department and regularly returned for checkups. Data including reasons for receiving medical treatment, factors affecting their choice of hospitals, and health care and environmental considerations were collected through structured interviews. RESULTS: The older adults identified four factors. (1) The care of doctors: The doctors possessed professional skill, allocate sufficient consultation time, and undertake effective communication. (2) The care of other medical professionals: Other medical professionals provided services in a cordial manner. (3) The accessibility and convenience of outpatient services: Convenient transportation and registration as well as short consultation wait time. (4) Environment and equipment: The hospital had the novel facilities and satisfactory barrier-free equipment. CONCLUSIONS: The older adults cared most about the adequacy of diagnosis and treatment by doctors and other medical professionals. In addition, they reported having higher satisfaction with hospitals that provide comprehensive medical facilities, fast and convenient medical procedures, and short wait times.

Depressive mood and its risk factors, and persistent complex bereavement disorder among caregivers who received hospice care: A longitudinal study.

This aims of this longitudinal study were to identify the risk factors of and depressive mood in caregivers who received hospice care 6 months after their patients' death, and the cutoff pint of the bereavement risk index, as well as, the prevalence of persistent complex bereavement disorder (PCBD). There were 30.28 and 4.59% of caregivers with depressive mood and PCBD, respectively. The risk factors included resistance to the reality of patients' death, anger, self-blame and guilt, support networks, and coping. The cutoff points of total bereavement risk index and five-item short form were 10/11 and 9/10, respectively.

A Single Session of Heart Rate Variability Biofeedback Produced Greater Increases in Heart Rate Variability Than Autogenic Training.

Heart rate variability biofeedback (HRV-BF) has been confirmed to increase heart rate variability (HRV) and cardiac outflows by baroreflex in healthy populations and clinical patients. Autogenic training (AT) is common used in the psychological intervention. This study integrates a single-session of HRV-BF and AT into a high-technology mobile application (app), and examines the effects on HRV indices, breathing rates, and subjective relaxation scores. Healthy college students were recruited and assigned to the single-session HRV-BF group or AT group. Participants in the HRV-BF group received HRV-BF combined with paced breathing training, which gradually stepped down their breathing rates from 12, to 8, to 6 breaths/per min; and received feedback of HRV indices from the app. Participants in the AT group received autogenic training and feedback of heart rate from the app. A chest belt Zephyr BioHarness was connected through Bluetooth to a Zenfone5 mobile phone, it collected the signals of interbeat intervals and breathing rates at pre-training, mid-training, and post-training stages. The Kubios HRV software was used to analyze HRV indices. The results reveal higher HRV indices and lower breathing rates during mid-training and post-training in the HRV-BF group compared to the AT group. There were higher high-frequency of HRV at post-training than pre-training in the AT group. Participants of both groups increased their subjective relaxation scores after training. The HRV-BF protocol increased cardiac outflows by baroreflex and decreased breathing rates, and the AT protocol increased high-frequency of HRV. These high-technology wearable devices combined with psychological interventions will apply to various populations in the future.

Emotional and cognitive barriers of bereavement care among clinical staff in hospice palliative care.

OBJECTIVE: Bereavement care is one of the major components of hospice palliative care. Previous studies revealed the barriers to the success of the system, including lack of time or support from mental health professionals. Few studies have explored the intrapersonal barriers to bereavement care by clinical staff. The aims of the study were to explore (1) the emotional and cognitive barriers of bereavement care by hospice palliative care staff and (2) the demographic and work characteristics related to these emotional and cognitive barriers. METHOD: The participants were clinical staff (n = 301) who were working in hospice palliative care units, including hospice wards, home care, and hospital-based palliative care teams. Their professional backgrounds included physicians (n = 12), nurses (n = 172), social workers (n = 59), psychologists (n = 34), spiritual care specialists (n = 15), and others (n = 9). A cross-sectional design was used and a standardized questionnaire including emotional and cognitive barriers was developed. Information on demographic and work characteristics was also collected. Content validity index, an exploratory factor analysis, and multiple regression analysis were conducted. RESULTS: One emotional barrier, "negative emotional reactions" (13 items, Cronbach's α = 0.92), and three cognitive barriers, "lack of ability" (7 items, Cronbach's α = 0.85), "belief in avoidance" (5 items, Cronbach's α = 0.86), and "outcome expectancy" (4 items, Cronbach's α = 0.85) were identified. Clinical staff who had higher working stress, lower self-rated ability for bereavement care, and higher negative impact from major life loss tended to have higher emotional and cognitive barriers. SIGNIFICANCE OF RESULTS: Clinical staff should be aware of intrapersonal barriers to bereavement care. Educational programs should be developed to improve the ability to engage in bereavement care.

[Development and Psychometric Validation of a Tool for Assessing the Care Needs of Families of Patients With Dementia].

BACKGROUND: The rapid aging of the global population has sharply increased the prevalence of dementia. Most people with dementia (PwD) live at home and are cared for by family caregivers. The complicated care needs of PwD and family caregivers necessitate the provision of comprehensive and transdisciplinary assessment and service support. PURPOSE: The purpose of this study was to construct the contents of the "Assessment Tool for Family Care Needs of People with Dementia" using a transdisciplinary perspective and to establish the reliability and validity of this tool. METHODS: Based on a literature review and clinical experience, the preliminary items of the assessment tool were drawn up and pilot tests of the case were conducted in the Clinic for Dementia Care. The transdisciplinary research team discussed the pilot tests and verified the preliminary items, and then experts were invited to assess the content validity of the assessment tool. Next, quota sampling was conducted in accordance with the national proportion of the severity of dementia and the questionnaire surveys were administered in an outpatient department of neurology at a medical center in southern Taiwan. Two hundred dyads of PwD and their family caregivers participated in the survey. Reliability and validity analysis of the data were completed. RESULTS: The assessment tool contains 21 items of demographic data and 31 items in the eight subscales of "language and communication", "activities of daily living", "sleep", "activity arrangements", "nutrition and diet", "behavioral and psychological symptoms of dementia", "care stress", and "obtaining resources". The overall content validity of the assessment tool was .99 and the Cronbach's alpha of each subscale ranged between .625 and .905. The concurrent validities of the "activities of daily living" subscale and the "behavioral and psychological symptoms of dementia" subscale were, respectively, correlated with the Barthel Index (r = -.889, p < .001) and the Neuropsychiatric Inventory Questionnaire (r = .750, p < .001). CONCLUSIONS / IMPLICATIONS FOR PRACTICE: The assessment tool was assessed as having satisfactory validity and reliability. Moreover, the tool was clear and concise, and was able to be completed quickly by the caregivers. Transdisciplinary professionals involved in dementia care may use this assessment tool in outpatient departments, centers for integrated dementia care, and discharge preparation services to acquire information related to family care needs. The results of the assessment tool may be used as a reference in developing appropriate transdisciplinary care plans to improve the quality of care and quality of life of families of patients with dementia.

The experience of advance care planning discussion among older residents in a long-term care institution: A qualitative study.

AIMS AND OBJECTIVES: To explore the experiences and processes of advance care planning (ACP) discussions in older residents of a long-term care institution. BACKGROUND: Advance care planning can facilitate discussion about end-of-life care and help to identify individual's views, wishes and beliefs about dying at a time when they have the cognitive capacity to reflect on and/or make such decisions. DESIGN: A qualitative study was conducted. METHODS: Twenty-eight older adults in a long-term care institution participated in person-to-person interviews using an ACP booklet, which included topics such as life review, healthy habits and behaviours, and end-of-life care issues and information. The discussions were recorded, and thematic analysis was used to analyse the qualitative data. The Standards for Reporting Qualitative Research (SRQR) checklist was followed. RESULTS: Three themes were identified. First, participants identified that ACP could help to ensure that they achieved their view of a "good death." Second, the process of ACP bought up difficult decisions that many participants expressed uncertainty about making. Third, participants' ability and willingness to plan for end of life were shaped by considerations about their family members' needs, views and potential role as their future carer. CONCLUSIONS: The ACP process involved not only personal ideas about good death but also families' concerns. Uncertainty and lack of information created difficult barriers. RELEVANCE TO CLINICAL PRACTICE: Healthcare professionals could address the concept of good death, deliver information for their concerns and promote communication with family members.

Advance Care Planning Program and the Knowledge and Attitude Concerning Palliative Care.

OBJECTIVES: The study aimed to evaluate the effects of an advance care planning (ACP) program on knowledge and attitudes concerning palliative care, and decisions regarding DNR orders in the older residents in a long-term care institution. METHODS: A quasi-experimental design was used. Participants were cognitively unimpaired older residents in a long-term care institution in Taiwan. The experimental group (n = 29) received the intervention including an individual interview using an ACP handbook and a group patient education; whereas the control group (n = 28) received the group patient education only. RESULTS: There were significant positive effects of the ACP program on understanding of DNR and palliative care, willingness to sign a DNR order, and knowledge of and attitude towards palliative care; however, there was no significant effect on willingness to receive palliative care. Six participants signed the DNR order after the intervention compared to none in the control group. CONCLUSIONS: The ACP program can improve knowledge and attitudes towards palliative care in older residents in long-term care institutions. CLINICAL IMPLICATIONS: The ACP program could incorporate multiple components, including individual interview using ACP handbook and group patient education, and address knowledge and attitudes towards palliative care.

One-Year Cardiovascular Prognosis of the Randomized, Controlled, Short-Term Heart Rate Variability Biofeedback Among Patients with Coronary Artery Disease.

PURPOSE: Heart rate variability biofeedback (HRV-BF) is an effective psychophysiological intervention, with short-term effects of increased autonomic nervous system homeostasis, strengthened baroreflex sensitivity, and decreased hostility in patients with coronary artery disease (CAD). The study examined the 1-year HRV-BF effect on cardiovascular prognosis of these patients. METHODS: Of 222 patients with CAD referred by cardiologists, 210 were screened and randomly assigned to the HRV-BF and control groups. All patients received psychophysiological assessment and completed psychological questionnaires at pre- and post-interventions and 1-year follow-up. The cardiovascular prognosis primary endpoints included hospital readmission, emergency revisits, and mortality. RESULTS: The HRV-BF group had fewer all-cause readmissions (12.00 vs. 25.42%) and all-cause emergency visits (13.33 vs. 35.59%) than the control group. The low-frequency HRV in the HRV-BF group increased at post-intervention and 1-year follow-up compared with that at pre-intervention. Although no significant interaction effect was found in the standard deviation of the normal-to-normal intervals (F = 2.96, p = 0.055), it increased by 26.68% from pre- to post-intervention and 15.77% from pre-intervention to follow-up in the HRV-BF group. However, it decreased by 3.60% from pre- to post-intervention and increased by 1.99% from pre-intervention to follow-up in the control group. Depression and hostility scores decreased significantly at post-intervention and 1-year follow-up only in the HRV-BF group. CONCLUSIONS: The long-term HRV-BF effect was confirmed by improved cardiovascular prognosis, increased cardiac autonomic homeostasis and baroreflex sensitivity, and decreased depression and hostility. HRV-BF is an effective psychophysiological intervention with short- and long-term effects in cardiac rehabilitation programs.

Allow natural death versus do-not-resuscitate: titles, information contents, outcomes, and the considerations related to do-not-resuscitate decision.

BACKGROUND: As the "do not resuscitate" (DNR) discussion involves communication, this study explored (1) the effects of a title that included "allow natural death", and of information contents and outcomes of the decision; and (2) the information needs and consideration of the DNR decision, and benefits and barriers of the DNR discussion. METHODS: Healthy adults (n = 524) were presented with a scenario with different titles, information contents, and outcomes, and they rated the probability of a DNR decision. A questionnaire including information needs, consideration of the decision, and benefits and barriers of DNR discussion was also used. RESULTS: There was a significantly higher probability of signing the DNR order when the title included "allow natural death" (t = - 4.51, p < 0.001), when comprehensive information was provided (F = 60.64, p < 0.001), and when there were worse outcomes (F = 292.16, p < 0.001). Common information needs included remaining life period and the prognosis. Common barriers were the families' worries and uncertainty about future physical changes. CONCLUSION: The title, information contents, and outcomes may influence the DNR decisions. Health-care providers should address the concept of natural death, provide comprehensive information, and help patients and families to overcome the barriers.

[The acceleration algorithm for projection decomposition of dual-energy computed tomography image reconstruction based on projection matching].

Dual-energy computed tomography (CT) reconstruction imaging technology is an important development direction in the field of CT imaging. The mainstream model of dual-energy CT reconstruction algorithm is the basis material decomposition model, and the projection decomposition is the crucial technique. The projection decomposition algorithm based on projection matching was a general method. With establishing the energy spectrum lookup table, we can obtain the stable solution by the least squares matching method. But the computation cost will increase dramatically when size of lookup table enlarges and it will slow down the computer. In this paper, an acceleration algorithm based on projection matching is proposed. The proposed algorithm makes use of linear equations and plane equations to fit the lookup table data, so that the projection value of the decomposition coefficients can be calculated quickly. As the result of simulation experiment, the acceleration algorithm can greatly shorten the running time of the program to get the stable and correct solution.

The Association of Type D personality with Heart Rate Variability and Lipid Profiles Among Patients with Coronary Artery Disease.

PURPOSE: Characteristics of the distressed (Type D) personality include negative affectivity (NA) and social inhibition (SI), which are associated with an increased risk of major adverse cardiac events and mortality among patients with coronary artery disease (CAD). The aims of this study were to examine: (1) the correlation of NA and SI with psychological characteristics, heart rate variability (HRV) indices, and lipids profiles and (2) the differences in psychological characteristics, HRV indices, and lipid profiles between patients with CAD with Type D personality and those with non-Type D personality. METHOD: A cross-sectional study was conducted on 168 patients with CAD. The Taiwanese 14-item Type D Scale, Chinese Hostility Inventory-Short Form, Beck Depression Inventory-II, Beck Anxiety Inventory, and Anger Rumination Scale were administered to all of the participants. The raw signals of electrocardiograms were recorded over a 5-min baseline resting period and then transformed to HRV indices representing short-term cardiac autonomic activations. Lipid profiles were acquired from patients' medical records. RESULTS: NA was positively correlated with hostility, depression, anxiety, and anger rumination. With respect to pathophysiological mechanisms for CAD with Type D personality, NA was negatively correlated with standard deviation of all normal-to-normal intervals (SDNN) and total power of HRV and positively correlated with total cholesterol. SI was positively correlated with suppressive hostility behavior and anger rumination; however, SI was not significantly correlated with expressive hostility behavior, or HRV indices and lipid profiles. CONCLUSION: Pathophysiological mechanisms leading to higher rates of adverse outcomes in CAD in individuals with Type D personalities may involve cardiac autonomic imbalance and lipid dysregulation.