Oral health knowledge, attitudes, and practices and oral health-related quality of life among stroke inpatients: a cross-sectional study.

BACKGROUND: Stroke patients have poor oral hygiene, experience oral dysfunction due to disease factors, and have impaired oral health-related quality of life (OHRQoL). This study aimed to determine the oral health knowledge, attitudes, and practices of stroke inpatients, assess the OHRQoL of these patients, and identify their correlates. METHODS: In this cross-sectional study, 281 stroke inpatients aged between 22 and 88 years (57.94 ± 10.94) were conveniently selected from three hospitals in Guangzhou, China. OHRQoL was measured among these stroke patients using a Chinese version of the Oral Health Impact Profile-14 (OHIP-14). SPSS 26.0 was used for statistical analysis. Mean scores, standard deviations, and frequency distributions were obtained. The Mann-Whitney U test, Kruskal‒Wallis H test, Spearman's correlation, and multiple linear regression were used in the analysis. RESULTS: The mean score of the patients' OHRQoL was 8.37 ± 6.67, with the highest score in the pain or discomfort of the mouth dimension (3.11 ± 2.13) and pain being the most common negative effect (13.5%). In multiple linear regression analysis, significant differences were found between patients only in age (P = 0.008), toothache (P < 0.001), self-rated oral health (P < 0.001), time since last dentist visit (P = 0.037) and reason for not having visited a dentist in the past year (P < 0.001). CONCLUSION: The OHRQoL of patients hospitalised with stroke was moderate, and oral conditions still need to be improved. Increasing age, toothache, a longer time since the last dental visit and the reason for not visiting a dentist in the past year had a negative effect on OHRQoL, and better self-rated oral health had a positive effect. Therefore, in clinical work, greater attention should be given to elderly stroke patients, patients with poor oral status and poor oral health behaviours, timely assessment of patients' swallowing function, nutritional function, and self-care ability, and early and targeted oral health interventions and guidance.

Understanding the associations among parents teaching safety rules to children, safety behaviors and unintentional injuries in Chinese preschool children.

Child unintentional injuries are one of the most prominent global health threats and parents may play a vital role in these injuries. This study thus aims to explore the associations of parents teaching safety rules with preschool children's safety behaviors and unintentional injuries. A total of 62,922 children registered at 182 kindergartens in Longhua District of Shenzhen, China during the fall semester of 2016, were included in this cross-sectional study. Their parents were invited to complete a self-administered questionnaire covering information about socio-demographics, parents teaching safety rules to children, child safety behaviors and unintentional injuries. Logistic and linear regression models were carried out to test the associations among parents teaching safety rules, child safety behaviors, and child unintentional injuries. Whether child safety behaviors mediated the relationship between parents teaching safety rules and child unintentional injuries was assessed using Hayes' PROCESS macros for SPSS. Regression analyses revealed that the higher scores of both mothers' and fathers' teaching safety rules to children were significantly associated with the reduced risks of child unintentional injuries and the modest improvements in child safety behaviors, after adjusting for potential confounders. Furthermore, mediation analysis illustrated that child safety behaviors mediated 18.1% of the association between mothers teaching safety rules and child unintentional injuries and 30.3% of the association between fathers teaching safety rules and child unintentional injuries, respectively. These findings suggest that parents teaching safety rules to children is beneficial for mitigating unintentional injury risks among Chinese preschool children through improving child safety behaviors.

The Stroke Stigma Scale: a reliable and valid stigma measure in patients with stroke.

OBJECTIVE: The objective of the study is to analyse the psychometric properties of the Stroke Stigma Scale, a novel scale to assess perceived stigma of patients with stroke. DESIGN: This is a psychometric study. SETTING: Neurology or rehabilitation units in three hospitals in China. SUBJECTS: A total of 288 patients with stroke. INTERVENTIONS: None. MEASURES: The content validity of the Stroke Stigma Scale was assessed through expert consultation. Criterion validity was evaluated based on the scale's relationships with the Stigma Scale for Chronic Illness and the Self-rating Depression Scale. Construct validity was assessed using exploratory factor analysis, and internal consistency was tested with Cronbach's α. RESULTS: The final version Stroke Stigma Scale consists of 16 items. It showed strong positive correlations with both the Stigma Scale for Chronic Illness (ρ = 0.89, P < 0.001) and the Self-rating Depression Scale (ρ = 0.82, P < 0.001). The exploratory factor analysis revealed four components of the Stroke Stigma Scale: internalized stigma, physical impairment, discrimination experience, and social isolation, which were strongly associated with our perceived stroke stigma model. Cronbach's α for the total scale was 0.92, and that of each subscale was 0.77-0.86. The test-retest reliability with intra-class correlation coefficients of the total scale was 0.92 (P < 0.001), and intra-class correlation coefficients of each subscale were 0.74-0.89 (P < 0.001). CONCLUSIONS: The Stroke Stigma Scale is a reliable and valid measure of perceived stigma in patients with stroke, which may be useful in stigma prevention and stroke rehabilitation.

Psychological Capital and Perceived Professional Benefits: Testing the Mediating Role of Perceived Nursing Work Environment Among Chinese Nurses.

The current descriptive cross-sectional study aimed to explore the mediating role of perceived nursing work environment (PNWE) in the relationship between psychological capital (PsyCap) and perceived professional benefits among Chinese nurses. Participants (N = 351) working in two large general hospitals in Guangdong, China completed self-report questionnaires from March to May 2017. Linear regression analyses and structural equation modeling were performed to explore the mediating effect. PsyCap (particularly for hope and optimism) had a positive effect on perceived professional benefits, and PNWE was a mediator in this relationship among Chinese nurses. A good working environment can be regarded as a mediator variable, increasing staff's competence and sense of belonging to a team. For successful implementation, nurse managers should use effective strategies to increase nurses' confidence and hope while providing a comfortable work environment. [Journal of Psychosocial Nursing and Mental Health Services, 56(4), 38-47.].

Validation of the Chinese version of the FOUR score in the assessment of neurosurgical patients with different level of consciousness.

BACKGROUND: The Glasgow Coma Scale (GCS) is currently the most widely used scoring system for comatose patients. A decade ago, the Full Outline of Unresponsiveness (FOUR) score was devised to better capture four functional aspects of consciousness (eye, motor responses, brainstem reflexes, and respiration). This study aimed to validate the Chinese version of the FOUR score in patients with different levels of consciousness. METHODS: The study had two phases: (1) translation of the FOUR score, and (2) assessment of its reliability and validity. The Chinese version of the FOUR score was developed according to a standardized protocol. One hundred-twenty consecutive patients with acute brain damage, admitted to Nanfang Hospital (Southern Medical University, Guangdong, China) from November 2014 to February 2015, were enrolled. The inter-rater agreement for the FOUR score and GCS was evaluated using intraclass correlation coefficient (ICC). Receiver operating characteristic (ROC) curves were established to determine the scales' abilities to predict outcome. RESULTS: The rater agreement was excellent both for FOUR (ICC = 0.970; p < 0.001) and GCS (ICC = 0.958; p < 0.001). The FOUR score yielded an excellent test-retest reliability (ICC = 0.930; p < 0.001). Spearman's correlation coefficients between GCS and the FOUR score were high: r = 0.932, first rating; r = 0.887, second rating (all p < 0.001). Areas under the curve (AUC) for mortality were 0.834 (95 % CI, 0.740-0.928) and 0.815 (95 % CI, 0.723-0.908) for the FOUR score and GCS, respectively. CONCLUSIONS: The Chinese version of the FOUR score is a reliable scale for evaluating the level of consciousness in patients with acute brain injury.

The knowledge, attitudes, and practices of arteriovenous access assessment among hemodialysis nurses: A multicenter cross-sectional survey.

INTRODUCTION: Hemodialysis nurses' cannulation technique, monitoring, and management methods can affect patients' vascular access longevity. An arteriovenous access assessment comprises a medical history and vascular assessment through physical examination and surveillance. However, further exploration is needed to fully understand hemodialysis nurses' knowledge, attitudes, and practices (KAP) in this area. METHODS: Between June and July 2023, we recruited hemodialysis nurses from 21 cities in Guangdong Province using a convenience sampling method. Four questionnaires-the General Data Questionnaire, the KAP Scale of Arteriovenous Access Assessment among Hemodialysis Nurses, the Utrecht Work Engagement Scale, and the NASA Task Load Index-were utilized for data collection through the Questionnaire Star platform. FINDINGS: Of the 530 hemodialysis nurses participating in the study, 458 (86.4%) had a valid response. The participants demonstrated moderate knowledge and practice levels regarding arteriovenous access assessment and exhibited positive attitudes. We identified several factors related to arteriovenous access assessment that predict KAP in hemodialysis nurses. These factors included years of experience as a hemodialysis nurse, whether a nurse's knowledge of physical examination was sufficient to meet clinical needs, whether a nurse had received training in performing physical examination, whether a nurse's department regularly checked the quality of physical examination, and nurses' levels of work engagement and mental workload. All factors explained 32.4% of the variance in participants' KAP regarding arteriovenous access assessment. DISCUSSION: Improving hemodialysis nurses' assessment of arteriovenous access is crucial to ensure optimal patient care. Dialysis center managers and educators should prioritize understanding hemodialysis nurses' KAP of arteriovenous access assessment and any factors influencing these areas.

Developmental trajectory of care dependency in older stroke patients.

Background: Stroke is the leading cause of death in China. Older stroke survivors often have other chronic conditions, not only musculoskeletal deterioration due to age, but also changes in body image that can be brought on by stroke and other diseases, making them unable to take good care of themselves and dependent on others. The degree of dependency affects the rehabilitation progress of stroke survivors and shows dynamic changes that need to be recognized. Objectives: This study investigates the trajectory of dependency changes in older stroke patients with comorbidities and analyze the influencing factors. Methods: Grounded in the Chronic Illness Trajectory Framework (CITF), a longitudinal study was conducted from February 2023 to October 2023, tracking 312 older stroke patients with comorbidities admitted to two tertiary hospitals in Guangzhou. Care dependency levels were assessed using Care Dependency Scale on admission day 5 (T0), at discharge (T1), 1 month post-discharge (T2), and 3 months post-discharge (T3). Growth Mixture Model were utilized to identify trajectory categories, and both univariate analysis and multivariate logistic regression methods were employed to explore factors associated with different developmental trajectories. Results: A total of four developmental trajectories were fitted, C1 (high independence-slow increased group, 52.0%), C2 (moderate independence-rapid increased group, 13.0%), C3 (moderate independence-slow increased group, 25.0%), and C4 (low independence-increased and decreased group, 10.0%). Length of hospital stay, place of residence, level of social support, residual functional impairments, NIHSS score, and BI index independently influence the trajectory categories. Conclusion: There is heterogeneity in care dependency among older stroke patients with comorbidities. Most patients gradually reduce their dependency and become more independent, but others remain dependent for an extended period of time. It is recommended to focus on patients who live in rural areas, have low social support, have high admission NIHSS scores and have residual functional impairment, and provide them with personalized continuity of care and rehabilitation services in order to reduce care dependency and the burden of care, and to improve patients' quality of life.

Care dependency in older stroke patients with comorbidities: a latent profile analysis.

Objectives: To explore latent profiles of care dependency in older stroke patients with comorbidities and to analyze the factors influencing different latent profiles. Methods: A total of 312 older ischemic stroke patients with comorbidities were included in the analysis. Latent Profile Analysis (LPA) was used to classify the participants into potential subgroups with different types of care dependency. The influencing factors of the classification of care dependency subgroups were determined using multivariate Logistic regression analysis. Results: The care dependency score of older ischemic stroke patients with comorbidities was (51.35 ± 13.19), and the patients could be classified into 3 profiles, namely Universal dependency (24.0%), Moderate activity-social-learning dependency (28.0%), and Mild activity-social-learning dependency (48.0%); caregiver, BI at admission, and functional impairments were independent factors influencing care dependency (P < 0.05). Conclusion: There are three latent profiles of care dependency in older ischemic stroke patients with comorbidities. According to the characteristics of various populations, medical staff are able to implement specific interventions to lower the level of dependency and further improve the quality of life of patients.

Development of a self-help cognitive behavioral therapy programme for reducing the stigma of stroke survivors: a modified delphi study.

BACKGROUND: Stigma is a common psychological consequence for stroke survivors that aggravates their physical and psychological burden and hinders their rehabilitation. Currently, there are few interventions targeted at the stigma of stroke survivors. OBJECTIVES: This study reports on the development of a self-help cognitive behavioral therapy (CBT) programme driven by a logical model of stigma in stroke survivors, CBT and the advice of multidomain experts. METHODS: A logical model of stigma in stroke survivors was derived from a systematic search of the literature and semistructured interviews with 21 patients to identify factors influencing stigma. The item content of the programme was generated based on this logical model in combination with CBT. A modified Delphi process with an expert panel of multidomain experts was used to evaluate and refine the content of the programme. SPSS 20.0 was used for data analysis. RESULTS: Seventeen experts accepted the invitation to participate, and all completed two rounds of the Delphi survey. Six sections and 26 items were identified. Consensus was reached among experts that the self-help CBT programme included the following six sections: health education, understanding stigma, cognition change, skills training and self-care, self-acceptance and relapse prevention. CONCLUSIONS: The self-help CBT programme includes health education and psychological education. This study extends the limited body of research on stroke-related stigma interventions, and the next step is to evaluate its efficacy in trials.

Basic psychological needs satisfaction of stroke patients: a qualitative study.

BACKGROUND: Previous studies have shown that the satisfaction of basic psychological needs is related to psychological well-being. Improving satisfaction will increase personal well-being, promote positive health outcomes, and improve disease recovery. However, no research has focused on the basic psychological needs of stroke patients. Therefore, this study aims to determine the basic psychological needs experience, satisfaction, and its influencing factors of stroke patients. METHODS: 12 males and 6 females in the non-acute phase with stroke were recruited in the Department of Neurology, Nanfang Hospital. The individual, semi-structured interviews were conducted in a separate room. The data were imported to Nvivo 12 and analyzed using the directed content analysis approach. RESULTS: Three main themes consisting of 9 sub-themes were derived from the analysis. These three main themes focused on the needs for autonomy, competence, and relatedness of stroke patients. CONCLUSION: Participants have different degrees of satisfaction of their basic psychological needs, which may be related to their family environment, work environment, stroke symptoms, or other factors. Stroke symptoms can significantly reduce the patients' needs for autonomy and competence. However, the stroke seems to increase the patients' satisfaction of the need for relatedness.

Refining and psychometric evaluation of the falling risk assessment tool in ophthalmology inpatients.

AIMS: The aim of this study was to refine the Falling Risk Assessment Tool in Ophthalmology Inpatients (FRAT) and assess its psychometric properties. DESIGN: A cross-sectional design was used. METHODS: A convenience sample of 730 patients in the ophthalmology department was recruited in a level A tertiary hospital in Guangdong Province from July 2021 to January 2022. Data were analysed using item analysis, interrater reliability, content validation, internal consistency reliability and exploratory factor analysis. RESULTS: Five factors were extracted, accounting for 63.039% of the variance. The interrater reliability of the tool was 0.97. Cronbach's α was 0.658. The I-CVI was 0.75-1.00, the S-CVI/UA was 0.95 and the adjusted mean values of Kappa for indicators ranged from 0.72 to 1.00, as evaluated by the expert group. The FRAT showed satisfactory reliability and validity, and can be used to measure the fall risk assessment in ophthalmology inpatients. PATIENT OR PUBLIC CONTRIBUTION: After explaining the purpose, the patients received our fall risk assessment and answered the corresponding questionnaire questions.

Morbidity and risk factors for surgical site infection following cesarean section in Guangdong Province, China.

AIM: To estimate the incidence of and identify the risk factors for a surgical site infection after a cesarean section. METHOD: A survey of women who underwent a cesarean section was conducted in eight hospitals in Guangdong Province, China. The rate of surgical site infection was estimated and a nested case control study was then carried out to identify the risk factors. RESULTS: Among 13 798 women surveyed, 96 (0.7%) developed a surgical site infection after a cesarean section. Multivariate logistic regression analysis identified six factors independently associated with an increased risk of surgical site infection, which included obesity, premature rupture of membranes, lower preoperative hemoglobin, prolonged surgery, lack of prophylactic antibiotics and excessive anal examinations performed during hospitalization. CONCLUSION: Surgical site infection occurs in approximately 0.7% of cesarean section cases in the general obstetric population in China. Obesity, premature rupture of membranes, lower preoperative hemoglobin, prolonged surgery, lack of prophylactic antibiotics and excessive anal examinations during hospitalization are considered to be independent risk factors.

Translation and Cross-Cultural Adaptation of Post-Stroke Checklist into Mandarin: A Cognitive Interview Study.

PURPOSE: This study aimed to translate the Post-stroke Checklist into Mandarin, validate its content, and cross-culturally adapt the Mandarin version of the Post-stroke Checklist (M-PSC) in line with expert review and cognitive interviewing. PATIENTS AND METHODS: After translating into Mandarin, the M-PSC was modified and content validated using expert review, which resulted in a pilot version for cognitive interviewing among stroke survivors inclusive of subjects from an outpatient unit (n = 7), a rehabilitation department using traditional Chinese medicine (n = 10), and a community (n = 10). The interviews were transcribed and analyzed according to the four-stage cognitive model. A set of nine practice rounds where the number of rounds of iteration was determined based on the saturation of information was conducted. Data analysis was performed concurrently with data collection. Recommendations for changes to the M-PSC were made based on the analyses in the iteration. RESULTS: We successfully developed an initial M-PSC, back-translated it into English, reviewed the discrepancies and performed a three-step expert review to modify the M-PSC and validate its excellent content. Twenty-seven interviews were carried out, and a wide range of sources of error primarily related to the comprehension, retrieval of information, and judgment was reported, and each item of the M-PSC was rectified accordingly. CONCLUSION: The Post-stroke Checklist was translated into Mandarin and cross-culturally adapted based on expert review and cognitive interviewing. Adaptations were made to support that the Mandarin version can be implemented in clinical practice for long-term post-stroke care.

Stigma, depression, and post-traumatic growth among Chinese stroke survivors: A longitudinal study examining patterns and correlations.

BACKGROUND: With the development of positive psychology, several studies show that positive and negative emotions are not always opposing. Understanding how positive and negative emotions correlate and the factors contributing to resilience in stroke survivors requires further research. OBJECTIVES: To identify the patterns and correlations of stigma, depression, and posttraumatic growth (PTG) among stroke survivors. METHODS: Stroke-related stigma, depression, PTG, and neurological status were evaluated at 1-month and 3 months post-stroke using the Stroke Stigma Scale (SSS), Patient Health Questionnaire-9 (PHQ-9), Chinese version of the Posttraumatic Growth Inventory (C-PTGI), modified Rankin Scale (mRS), and Social Support Rating Scale (SSRS). The paired t-test, nonparametric test, and Spearman's correlation test were used to analyze differences and relationships between results at the two time points. RESULTS: At 3 months compared to 1-month post-stroke, we found significant reductions in mRS and stigma scores, and an increase in PTGI scores, while the PHQ-9 scores reduced non-significantly. SSS, PHQ-9, and mRS scores were positively correlated with each other at time1 (all P < .01), and all showed no significant relationships with PTGI scores (all P > .05). Social support scores were negatively correlated with stigma (P < .01), PHQ-9 (P < .01), and PTGI scores (P > .05) at 3 months. CONCLUSIONS: Stroke-related stigma is strongly associated with depression while neither of them has significant relationships with PTG during the early stage of survivors' rehabilitation in our study. Neurological impairment is a risk factor for negative emotions and increasing individualized support may reduce stigma, depression, and promote PTG in the long term.

A methodological study on the combination of qualitative and quantitative methods in cognitive interviewing for cross-cultural adaptation.

AIM: The aim of this study is to explore the use of the Questionnaire Appraisal System with a combination of qualitative and quantitative methods in cognitive interviewing for cross-cultural adaptation. DESIGN: This is a descriptive methodological study. METHODS: Using the Mandarin version of the Post-Stroke Checklist as an example, cognitive interviews were conducted with 27 stroke survivors in Guangzhou between November 2020 and February 2021. The Questionnaire Appraisal System was applied as a codebook in focus group discussions to perform quantitative data collections and quantitative content analysis. RESULTS: Thirty-eight problems were proposed in focus group discussions and identified all but four of the 30 questions that emerged in the cognitive interviews. A new item was added to the Questionnaire Appraisal System for better categorization. Four categories and six subcategories of problems in the checklist were revealed.

Correlation between nurses' attitudes towards death and their subjective well-being.

BACKGROUND: With China's ageing society, the number of deaths increased gradually. Clinical nursing staff are among the first to come into contact with dying patients and scientific attitudes towards death will affect not only the quality of hospice care but also the physical and mental health of the nursing staff. Subjective well-being (SWB) mainly points to the overall emotional and cognitive evaluation of life quality. However, few studies have examined the correlation between attitudes towards death and subjective well-being in nurses. METHODS: A total of 810 nurses recruited from a tertiary hospital in Zhuhai were surveyed using the Chinese version of the Death Attitude Profile-Revised and the Subjective Well-being Scale. Pearson correlation coefficient was computed to analyze the correlation between attitudes towards death and the subjective well-being of the nursing staff. RESULTS: Subjective well-being was correlated with attitudes towards death (P<0.05). Multivariate analysis found that serious illness/acute or chronic disease, night shifts, and initial education level among nurses were also factors significantly related to subjective well-being (P<0.05). CONCLUSIONS: The findings indicate a close correlation between nurses' attitudes towards death and their subjective well-being. Nursing managers should guide nursing staff to develop a more appropriate and healthier view of death so as to enhance their subjective well-being.

Stigma experienced by Chinese patients with stroke during inpatient rehabilitation and its correlated factors: a cross-sectional study.

Background: Stroke-related stigma can have a negative effect on patients, and is associated with stereotyping, prejudice, and discrimination; however, the exact stigma experienced by patients remains ambiguous. Objectives: To evaluate the stigma experienced by patients with stroke, determine associated factors, and explore relationships between stigma and early rehabilitation. Methods: Overall, we examined 288 patients with stroke. Patient characteristics were determined through medical records and investigations, while stigma status (comprising total stigma, internalized stigma, and enacted stigma), depression level, functional independence, and functional outcome were also assessed. Demographic and clinical characteristics were evaluated through univariate analysis, and significant variables were further analyzed through linear regression. The relationships between stigma and early rehabilitation (depression, functional independence, and functional outcomes) were also analyzed. Results: The sample's total stigma, internalized stigma, and enacted stigma scores were 47.76 ± 18.00, 30.07 ± 12.25, and 17.69 ± 6.37, respectively. Employment status before stroke, caregivers, physical impairment, and number of impairments were all relevant to all types of stigma (P< .05). The regression analysis showed that caregivers and physical impairment are the two main predictors of total, internalized, and enacted stigma (P< .01). The correlation analysis revealed that stigma is associated with depression (r = 0.671 ~ 0.690, P< .001), functional independence (r = -0.562~-0.707, P< .001), and functional outcomes (r = 0.436 ~ 0.637, P< .001). Conclusions: Stigma was moderate, and internalized stigma may be more apparent; therefore, physicians should pay more attention to patients who report or show signs of experiencing stroke-related stigma.

Validation of the Chinese Version of the Functional Oral Intake Scale (FOIS) Score in the Assessment of Acute Stroke Patients with Dysphagia.

This study aimed to validate the Chinese version of the Functional Oral Intake Scale (FOIS) score in acute stroke patients with dysphagia. A sample of 128 consecutive patients with acute stroke, admitted to Department of Neurology from April to October in 2016, completed the FOIS. The interrater reliability, criterion validity, discriminant validity, cross validation, and the sensitivity of FOIS scale were evaluated. Results showed that rater agreements were excellent for FOIS (Kw = 0.881, p < 0.001). A highly negative correlation between FOIS and WST (water swallow test) was detected (r = -0.937, p < 0.001). There was significant difference for FOIS level of patients with different evaluation outcomes (χ2 = 126.551, p < 0.001). The FOIS evaluation results were significantly correlated with two physiological measures of swallowing. The Chinese version of the FOIS score is a reliable scale for evaluating the level of oral feeding function in patients with acute stroke.

Event-related potential of facial expression processing.

OBJECTIVE: To investigate spatial and temporal patterns of event-related potentials (ERP) evoked by facial expression. METHODS: ERP was recorded in 25 healthy subjects while they performed facial recognition task. Repeated-measure one-way ANOVA was adopted to compare the subjects' responses to stimulation by 3 different expressions (positive, neutral and negative) with statistical parametric mapping (SPM). RESULTS: Significant facial expression effects occurred separately in the left parietal and bilateral occipital regions (280-340 ms), left frontal region (400-420 ms), and right prefrontal region (480-500 ms). In 4 time periods, significant difference was observed between positive and neutral emotion wave in the right frontoparietotemporal and left prefrontal regions (60-80 ms), right occipital region (120-140 ms), left occipital region (280-320 ms), and left frontoparietal region (400-440 ms). Significant difference between negative and neutral emotion waves was observed in 5 time periods in the right occipital region (120-140 ms), central frontoparietal region (220-240 ms), central parietal region (280-300 ms), left parietal and right temporopartial regions (320-340 ms) and frontopartial occipitotemporal region (480-500 ms). CONCLUSIONS: The spatiotemporal patterns of ERP suggest that the information processing of facial expression involves extensive brain regions dynamically.

[Causes of urinary tract infection and its prevention in patients with indwelling urinary catheter: report of 152 cases].

OBJECTIVE: To investigate the causes of urinary tract infections occurring in patients with indwelling urinary catheter, and to find the preventive means against this condition. METHODS: The clinical data of 152 such cases admitted between March, 2000 and February, 2002 in our department were reviewed. RESULTS: In this group of patients, 57 (37.5%) developed urinary infections due to the indwelling catheter, a rate significantly lower than that among previous cases (46.6%, P < 0.05) treated in our department. CONCLUSION: Careful evaluation of the indications for indwelling urinary catheter, strict aseptic procedures and shortened indwelling time of the catheter may help prevent the occurrence of the infection.