激光心肌血管重建术改善血液微循环的研究

本文研究了100W CO_2激光心肌打孔对心肌组织造成的热损伤和对心肌血液微循环的改善情况。结果表明:激光心肌打孔可以改善血液微循环,同时最大热损伤范围为270μm。     

Cell Proliferation in the Piriform Cortex of Rats with Motor Cortex Ablation Treated with Growth Hormone and Rehabilitation

Traumatic brain injury represents one of the main health problems in developed countries. Growth hormone (GH) and rehabilitation have been claimed to significantly contribute to the recovery of lost motor function after acquired brain injury, but the mechanisms by which this occurs are not well understood. In this work, we have investigated cell proliferation in the piriform cortex (PC) of adult rats with ablation of the frontal motor cortex treated with GH and rehabilitation, in order to evaluate if this region of the brain, related to the sense of smell, could be involved in benefits of GH treatment. Male rats were either ablated the frontal motor cortex in the dominant hemisphere or sham-operated and treated with GH or vehicle at 35 days post-injury (dpi) for five days. At 36 dpi, all rats received daily injections of bromodeoxyuridine (BrdU) for four days. We assessed motor function through the paw-reaching-for-food task. GH treatment and rehabilitation at 35 dpi significantly improved the motor deficit caused by the injury and promoted an increase of cell proliferation in the PC ipsilateral to the injury, which could be involved in the improvement observed. Cortical ablation promoted a greater number of BrdU+ cells in the piriform cortex that was maintained long-term, which could be involved in the compensatory mechanisms of the brain after injury.     

Delayed-Onset Deficits in Verbal Encoding Strategies Among Patients With Mild Traumatic Brain Injury.

Knowledge obtained from longitudinal animal models was used to predict the course of verbal memory deficits in 19 concussed patients and 19 control patients who were given versions of the Hopkins Verbal Learning Test--Revised at 2 hr, 48 hr, and 1 week postconcussion. The physiological literature suggests that concussed patients should exhibit a decline in performance from 2 hr to 48 hr postconcussion on a measure of complex memory strategies. Consistent with this hypothesis, mixed-factor analysis of covariance revealed that concussed patients used less semantic clustering strategies than control patients at 48 hr postconcussion, whereas minimal differences were found at 2 hr postinjury. Furthermore, a chi-square analysis showed that a significant number of concussed patients experienced a decline in the number of semantic clusters they used from 2 hr to 48 hr. No differences were found between the groups at the 1-week testing session. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

工伤事故规律在企业安全管理中的研究与应用

企业的工伤事故有其自身的特点和规律,而事故规律的研究对于企业安全管理有着重要的指导意义,目前这一方面仍是薄弱环节。对莱钢炼钢厂1985～2000年所发生的工伤事故进行综合统计分析,研究了企业工伤事故的一般规律,为预防和减少事故提供了科学依据,达到了消除和减少事故的目的。     

Community competence and violently acquired spinal cord injury: Employment as a peer role model.

Purpose: To understand how employment as a peer role model within a rehabilitation hospital affects the development of community competence among young men and women with violently acquired spinal cord injury (VASCI). Design: A mixed-method, multiple case study design was incorporated, in which 2 cases were selected for study, including 10 individuals who were currently employed as peer role models and 10 individuals who were not. Results: Results revealed several differences between the 2 cases, as peer role models demonstrated greater knowledge and use of community resources. Furthermore, results highlighted the processes by which these changes occurred, including that peer role models had more direct exposure to resources, engaged in the act of sharing resources with others, and experienced an increased connection to positive networks. Conclusions: Findings suggest that the experience of employment as a peer role model within a rehabilitation setting may facilitate connections between individuals with VASCI and the community supports and resources necessary for successful postinjury adjustment. Implications for future research and theory are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The association between threat appraisals and psychological adjustment in partners of people with spinal cord injuries.

Objective: To explore the psychological factors associated with adjustment in partners of people with spinal cord injuries (SCIs). Participants and Design: Forty partners of people with SCIs. The study had a cross-sectional design. Main Outcome Measures: Beck Depression Inventory, the State Trait Anxiety Inventory Form Y-1, Social Provisions Scale, COPE, and an appraisal scale. Results: Approximately one third of partners reported levels of anxiety and depressive symptoms above the clinical cut-off points indicating elevated levels of emotional distress. Factors hypothesized to account for levels of emotional distress on the basis of the cognitive-appraisal model of stress and coping were found to be explanative. In particular, high threat appraisal, higher use of avoidance (emotion-focused) coping, and lack of approach (problem-focused) coping were found to predict higher levels of anxiety and depressive symptoms. Conclusions: Partners of people with SCIs are at risk of emotional distress. Factors that might help identify at-risk partners are identified and psychological interventions that might help partners are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Changes in attention and information-processing speed following severe traumatic brain injury: A meta-analytic review.

Deficits in attention are frequently reported following severe traumatic brain injury (TBI). However, methodological differences make it difficult to reconcile inconsistencies in the research findings in order to undertake an evidence-based assessment of attention. The current study therefore undertook a meta-analytic review of research examining attention following severe TBI. A search of the PsycINFO and PubMed databases spanning the years 1980 to 2005 was undertaken with 24 search terms. Detailed inclusion and exclusion criteria were used to screen all articles, leaving 41 studies that were included in the current meta-analysis. Weighted Cohen's d effect sizes, percentage overlap statistics, and confidence intervals were calculated for the different tests of attention. Fail-safe Ns were additionally calculated to address the bias introduced by the tendency to publish significant results. Large and significant deficits were found in specific measures of information-processing speed, attention span, focused/selective attention, sustained attention, and supervisory attentional control following severe TBI. Finally, age, education, and postinjury interval were not significantly related to these deficits in attention. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Traumatic head injury: A challenge to rehabilitation psychologists.

Traumatic head injury is a tragedy for all whom it affects. Many families of injured individuals report that the most painful aspects of the injury are the lack of accurate information available to them at all points following the injury and the fact that, because a head injury's effects are so different from those of other illnesses and injuries, no one seems to understand. It is hoped that this Special Issue of Rehabilitation Psychology will not only help more people to understand, but will also impel some readers to participate in the search for answers. In pulling these papers together, I struggled with the question of whether to include papers from the wide spectrum of rehabilitation efforts in which psychologists are involved (including neuropsychological assessment, cognitive retraining, vocational rehabilitation, etc.), or to focus on one major area. Given the increasing number of books that provide the broader perspective, I have chosen the latter route, including papers dealing with the psychosocial issue that is a prerequisite for success in other areas—how patients and their families come to terms with the injury and its consequences. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Review of Current topics in rehabilitation psychology.

Reviews the book, Current topics in rehabilitation psychology edited by Charles J. Golden (1984). Every few years an edited volume of chapters on rehabilitation psychology is published. The latest contribution, Current Topics in Rehabilitation Psychology, edited by Charles Golden, is written for students, professionals, and educated lay people who want to learn about some of the recent advances in the field. Golden makes clear, and quite correctly so, that the volume is not a comprehensive coverage of all the areas of research, training, and service that are in the domain of rehabilitation psychology. Instead, after two chapters giving an overview of the field, several specific areas are addressed. They include management of chronic pain, cognitive retraining in brain damaged patients, rehabilitation and aging, adjustment of people with spinal cord injury, vocational training of people with severe developmental disabilities, biofeedback, and the role of personality in attitudes toward those with physical disabilities. The book would have profited greatly from more careful editing. Although the quality of writing varies from author to author, the grammatical errors, misspellings, and garbled sentences are uniformly so numerous that they sometimes distract the reader from the valuable content of the chapters. Nevertheless, the book is worthwhile as one that gives an overview of several specific topics and supplies rich bibliographies to those wishing to learn more. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Review of The trauma response: Treatment for emotional injury.

Reviews the book, The trauma response: Treatment for emotional injury by Diana S. Everstine and Louis Everstine (see record 1993-97113-000). The major premise of this book is that PTSD, as defined in the DSM-III-R, should be reconceptualized and recognized as "trauma response." This shift in focus emphasizes normalcy and a nonpathological recovery process as opposed to adherence to a disease model of psychological affliction in which a "disorder" is diagnosed and treated. The stated purpose of this book is to help clinicians identify, measure, and treat emotional trauma. This book is comprehensive and divided into four parts, covering topics such as the phenomenon of trauma, treatment for adult trauma, hidden trauma, trauma in the work place and trauma and the law. According to the reviewer, the book as a whole reflects valuable learning that has accrued from the authors' clinical experiences in working with victims of trauma. A diverse readership would benefit from this addition to the clinical literature. (PsycINFO Database Record (c) 2010 APA, all rights reserved)