Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses最新文献

筛选
英文 中文
Frequency and Reasons for Missed Inpatient Stroke Rehabilitation Therapy Sessions. 住院卒中患者错过康复治疗的频率和原因。
IF 1
{"title":"Frequency and Reasons for Missed Inpatient Stroke Rehabilitation Therapy Sessions.","authors":"","doi":"10.1097/RNJ.0000000000000513","DOIUrl":"https://doi.org/10.1097/RNJ.0000000000000513","url":null,"abstract":"","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":"50 3","pages":"E9-E10"},"PeriodicalIF":1.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144755531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Frequency and Reasons for Missed Inpatient Stroke Rehabilitation Therapy Sessions. 住院卒中患者错过康复治疗的频率和原因。
IF 1
Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses Pub Date : 2025-08-01 Epub Date: 2025-05-28 DOI: 10.1097/RNJ.0000000000000498
Elizabeth Byrd, Sarah Khalidi, Andres Azuero, Amanda Chambers, Ryan Killingsworth, Rita Jablonski
{"title":"Frequency and Reasons for Missed Inpatient Stroke Rehabilitation Therapy Sessions.","authors":"Elizabeth Byrd, Sarah Khalidi, Andres Azuero, Amanda Chambers, Ryan Killingsworth, Rita Jablonski","doi":"10.1097/RNJ.0000000000000498","DOIUrl":"10.1097/RNJ.0000000000000498","url":null,"abstract":"<p><strong>Introduction: </strong>Stroke remains a leading cause of long-term disability among adults, with inpatient rehabilitation playing a crucial role in maximizing recovery. Missed therapy sessions during rehabilitation may hinder functional gains, yet limited research explores their impact.</p><p><strong>Purpose: </strong>This exploratory study examines the prevalence, reasons, and potential implications of missed therapy sessions among inpatient stroke rehabilitation patients.</p><p><strong>Methods: </strong>Patients were recruited from a stroke rehabilitation unit affiliated with a major academic hospital. Participants had a stroke diagnosis with hemiparesis or hemiplegia. Data on demographics, functional scores, and missed therapy sessions were collected from electronic medical records. Descriptive statistics and correlations were used to analyze missed sessions.</p><p><strong>Results: </strong>Patients missed 184 therapy sessions (5% of total scheduled sessions) during 881 rehabilitation days. Physical therapy was the most missed (36.4%) sessions, followed by occupational therapy (34.2%) and speech language pathology (29.4%). Common reasons for missed sessions were patient refusal, fatigue, and bowel/bladder care. No significant correlations were found between missed sessions and functional outcomes.</p><p><strong>Conclusions: </strong>Missed therapy sessions are common in stroke rehabilitation, with clinical and administrative implications. Addressing barriers through patient-centered interventions and systemic changes may reduce missed sessions, enhance engagement, and improve rehabilitation efficiency. Future studies should explore the financial and outcome impacts of missed therapy.</p>","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":" ","pages":"98-105"},"PeriodicalIF":1.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144176387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Psychometric Analysis of the Turkish Version of the Preparedness Assessment for the Transition Home After Stroke Instrument. 土耳其语版卒中后过渡家庭准备评估量表的心理测量分析。
IF 1
Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses Pub Date : 2025-08-01 Epub Date: 2025-05-28 DOI: 10.1097/RNJ.0000000000000497
Burcu Akpınar Söylemez, Hasret Erden, Michelle Camicia
{"title":"Psychometric Analysis of the Turkish Version of the Preparedness Assessment for the Transition Home After Stroke Instrument.","authors":"Burcu Akpınar Söylemez, Hasret Erden, Michelle Camicia","doi":"10.1097/RNJ.0000000000000497","DOIUrl":"10.1097/RNJ.0000000000000497","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to assess the psychometric properties of the Turkish version of the Preparedness Assessment for the Transition Home After Stroke (PATH-s) instrument.</p><p><strong>Design: </strong>A cross-sectional design was used to examine the psychometric properties of the PATH-s Tr .</p><p><strong>Methods: </strong>Between February and November 2023, 250 family members caring for stroke survivors hospitalized in the neurology ward of a university hospital in western Turkey participated in the study. Data were collected using the Sociodemographic Characteristics Form, the PATH-s Tr , and the Preparedness for Caregiving Scale. Language and content validity, exploratory factor analysis (EFA), and confirmatory factor analysis (CFA) were used to assess the validity of the scale. The scale's reliability was examined using Cronbach's alpha coefficient, item-total correlations, and test-retest reliability. Guidelines for the process of cross-cultural adaptation of self-report measures and guidelines for reporting reliability and agreement studies were used.</p><p><strong>Results: </strong>EFA revealed eight factors underlying the PATH-s Tr structure. The CFA results of the scale showed acceptable fit (χ 2 / df = 2.98, adjusted goodness of fit index = .80, comparative fit index = .89, goodness of fit index = .82, root-mean-square error of approximation = .07). Cronbach's alpha value calculated for the Turkish version of the PATH-s Tr was .91. A statistically significant positive relationship was observed between the total item scores of the scale and the test-retest scores ( r = .99, p < .001).</p><p><strong>Conclusion: </strong>The results support the Turkish version of the PATH-s as a valid and reliable tool for assessing stroke caregivers' preparedness for home discharge.</p><p><strong>Relevance to clinical practice: </strong>Caregivers' preparedness for stroke survivors' home discharge is crucial. PATH-s offers a reliable and valid tool to assess caregiver readiness.</p>","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":" ","pages":"112-119"},"PeriodicalIF":1.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144176398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Psychometric Analysis of the Turkish Version of the Preparedness Assessment for the Transition Home After Stroke Instrument. 土耳其语版卒中后过渡家庭准备评估量表的心理测量分析。
IF 1
{"title":"Psychometric Analysis of the Turkish Version of the Preparedness Assessment for the Transition Home After Stroke Instrument.","authors":"","doi":"10.1097/RNJ.0000000000000514","DOIUrl":"https://doi.org/10.1097/RNJ.0000000000000514","url":null,"abstract":"","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":"50 3","pages":"E10-E11"},"PeriodicalIF":1.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144755533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Beginner Writers' Guide Toward Scientific Publication: Habits and Principles Behind Written Words. 初级作家科学出版指南:文字背后的习惯和原则。
IF 1
Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses Pub Date : 2025-08-01 Epub Date: 2025-05-28 DOI: 10.1097/RNJ.0000000000000499
Linda L Pierce
{"title":"Beginner Writers' Guide Toward Scientific Publication: Habits and Principles Behind Written Words.","authors":"Linda L Pierce","doi":"10.1097/RNJ.0000000000000499","DOIUrl":"10.1097/RNJ.0000000000000499","url":null,"abstract":"<p><strong>Background: </strong>Research studies, evidence-based practice, or continuous quality improvement projects are an integral part of everyday rehabilitation nursing practice. Patients, third-party payers, and accreditors demand clinical practice based on research results and/or project evidence. Rehabilitation nurses need to consider that the only way to build nursing science is to convey their work to others through scientific publication.</p><p><strong>Aim: </strong>The purpose of this article is to share a beginner writers' guide with 12 writing habits set on six principles that are behind or underlies written words, leading toward manuscript preparation/publication.</p><p><strong>Approach: </strong>Rehabilitation nurses who are clinicians, leaders, and managers at all educational levels and in all practice settings with completed research or projects have potential to become authors.</p><p><strong>Outcomes: </strong>Writers can acquire these habits and principles for success that increase or refine their skills to author scientific publications, supporting and advancing nursing science.</p><p><strong>Discussion and implications for practice: </strong>These 12 writing habits based on six principles for being successful in publishing scientific work are a learned process. Publications enhance care provided and quality of life for those affected by disability and chronic illness.</p><p><strong>Conclusion: </strong>All writers will find these habits and principles helpful in constructing a scientific manuscript suitable for publication.</p>","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":" ","pages":"106-111"},"PeriodicalIF":1.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144176386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From Practice to Publication: Sharing Clinical Knowledge, Quality Improvement, and Evidence-Based Innovations. 从实践到发表:临床知识共享、质量改进和循证创新。
IF 1
Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses Pub Date : 2025-08-01 Epub Date: 2025-05-28 DOI: 10.1097/RNJ.0000000000000510
Anne Deutsch
{"title":"From Practice to Publication: Sharing Clinical Knowledge, Quality Improvement, and Evidence-Based Innovations.","authors":"Anne Deutsch","doi":"10.1097/RNJ.0000000000000510","DOIUrl":"https://doi.org/10.1097/RNJ.0000000000000510","url":null,"abstract":"","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":"50 3","pages":"89-90"},"PeriodicalIF":1.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144755532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Turning the Tables on Action Planning: Shifting an Interprofessional Workplace Culture. 扭转行动计划的局面:转变跨专业的职场文化。
IF 1
Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses Pub Date : 2025-08-01 Epub Date: 2025-05-28 DOI: 10.1097/RNJ.0000000000000500
Sarah Lackey, Jennifer Bailey, Ben Zaino
{"title":"Turning the Tables on Action Planning: Shifting an Interprofessional Workplace Culture.","authors":"Sarah Lackey, Jennifer Bailey, Ben Zaino","doi":"10.1097/RNJ.0000000000000500","DOIUrl":"10.1097/RNJ.0000000000000500","url":null,"abstract":"<p><strong>Abstract: </strong>Collaborative relationships are essential for quality patient care, including care coordination between nurses and therapists in inpatient rehabilitation facilities. In our inpatient rehabilitation unit, strained relationships between nurses and therapists were refractory to repeated efforts for improvement. The leaders for nurses and therapists worked together to address this issue using the evidence-based, theory-based Cone Health Conceptual Framework for Nurse Retention(c) (\"Framework\"). The Framework identifies 18 concepts derived from 80 peer-reviewed nursing studies with empirical outcomes for intent to stay, intent to leave, retention, and turnover. The concepts are grouped according to two established theories. The Framework formed the basis for a unit-based continuous improvement project. The project leaders collected pre-implementation data using anonymous surveys and independent observations, planned and implemented actions, and then collected post-implementation data through anonymous surveys and independent observations. The data reflected culture change on the unit within 3 months. The process used was simple, executable, and nimble, offering busy frontline leaders a way to address work environment issues in real time. Previously used with nursing units, our outcomes demonstrate that the Framework and planning process are effective for clinical disciplines beyond nursing.</p>","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":" ","pages":"91-97"},"PeriodicalIF":1.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144176399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nurses' Contributions to "Getting Them Better" in Rehabilitation Units: A Case in Canada. 护士对康复单位“让他们更好”的贡献:加拿大的一个案例。
IF 1
Denise M Connelly, Angela Nguyen, Amanda McIntyre, Eric Tanlaka, Nancy Snobelen, Nicole A Guitar, Mehvish Masood
{"title":"Nurses' Contributions to \"Getting Them Better\" in Rehabilitation Units: A Case in Canada.","authors":"Denise M Connelly, Angela Nguyen, Amanda McIntyre, Eric Tanlaka, Nancy Snobelen, Nicole A Guitar, Mehvish Masood","doi":"10.1097/RNJ.0000000000000506","DOIUrl":"https://doi.org/10.1097/RNJ.0000000000000506","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of the study was to explore the perceptions of nurses' contributions to inpatient rehabilitation and interprofessional teams in a Canadian context.</p><p><strong>Design: </strong>A qualitative exploratory study was performed in three Ontario hospital rehabilitation units.</p><p><strong>Methods: </strong>Thirty-one registered practical nurses having at least 1 year of rehabilitation nursing experience in geriatric or stroke hospital settings were interviewed using a semistructured guide. An inductive thematic analysis of the transcripts was completed.</p><p><strong>Findings: </strong>Four themes emerged in relation to the perceived contributions of nurses. The first, Therapy Practice, referred to actions directly related to point of care and included \"hands-on/hands-off,\" reminders, and repetition of therapeutic motions. The second, Psychosocial Support, involved the psychosocial support of the patient to maintain their engagement with rehabilitation. The nurse's role in coordinating patient care and maintaining the physical functioning of the patient for participation in rehabilitation formed the third and fourth themes, Coordinating Patient Care and Maintaining Patient Physical Functioning, respectively.</p><p><strong>Clinical relevance: </strong>The findings have direct implications for delivery of quality whole-person care for optimal patient outcomes through inclusion of nurses in interprofessional collaboration on rehabilitation units.</p><p><strong>Conclusion: </strong>The nurses identified their pervasive influences in explaining, demonstrating, and practicing with the goal to help the patient to (re)gain independence.</p>","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144736397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing Caregiver Readiness: The Role of Simulation-Based Training With Mannequins and Models in Patient Discharge Education. 增强护理人员的准备:模拟为基础的训练与人体模型和模型在病人出院教育中的作用。
IF 1
Monica E Dontoh, D'Andra Fortune, Daniel Ampomah, Stacey Schaab
{"title":"Enhancing Caregiver Readiness: The Role of Simulation-Based Training With Mannequins and Models in Patient Discharge Education.","authors":"Monica E Dontoh, D'Andra Fortune, Daniel Ampomah, Stacey Schaab","doi":"10.1097/RNJ.0000000000000508","DOIUrl":"https://doi.org/10.1097/RNJ.0000000000000508","url":null,"abstract":"<p><strong>Abstract: </strong>Simulation-based training has long been integral to nursing education, gaining momentum since the 1960s and 1970s. Research highlights its effectiveness in fostering clinical judgment, skill acquisition, and student confidence in a risk-free environment. Its widespread adoption is due to its ability to replicate real-world scenarios, promote critical thinking, and provide immediate feedback. For rehabilitation nurses, education is a crucial component of patient care, helping patients and caregivers adapt to new self-care routines. However, barriers such as knowledge gaps and health-related challenges can delay progress. This article explores using simulation-based learning techniques for patients and caregivers. By leveraging these methods, rehabilitation nurses can enhance readiness and confidence, improving outcomes and facilitating smoother transitions to home settings.Effective patient and family education is essential for continuity of care postdischarge, as caregivers often face stress when learning medical tasks. Simulation-based training addresses barriers by empowering caregivers and providing a safe environment for practice. An inpatient rehabilitation facility in Northern Virginia implemented a customized simulation-based program using anatomical models and mannequins. This approach aligns with other successful caregiver training settings and can reduce the need for prolonged inpatient care. A survey showed substantial improvements in caregiver confidence following training, indicating that simulation-based training can be an effective approach for enhancing caregiver preparedness and improving home care management.</p>","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144736396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
I Am No Longer Trapped in a Glass Cage: A Qualitative Interview Study of the Patients' Experience on Specialized Aortic Rehabilitation After Aortic Dissection Surgery. 我不再被困在玻璃笼子里:对主动脉夹层术后主动脉专科康复患者经历的定性访谈研究。
Stine Rosenstrøm, Rosalie Magboo, Ulrik Dixen, Sussie Foghmar, Malene Mourier, Anette Sjøl
{"title":"I Am No Longer Trapped in a Glass Cage: A Qualitative Interview Study of the Patients' Experience on Specialized Aortic Rehabilitation After Aortic Dissection Surgery.","authors":"Stine Rosenstrøm, Rosalie Magboo, Ulrik Dixen, Sussie Foghmar, Malene Mourier, Anette Sjøl","doi":"10.1097/RNJ.0000000000000507","DOIUrl":"https://doi.org/10.1097/RNJ.0000000000000507","url":null,"abstract":"<p><strong>Background: </strong>This study explored patients' experience with a specialized rehabilitation course after aortic dissection surgery.</p><p><strong>Method: </strong>A qualitative study was conducted using content analysis inspired by Graneheim and Lundman. Participants were recruited by a physiotherapist at the end of or shortly after the rehabilitation course at the hospital to partake in an interview. The interviews were held either over the phone or in a private room at the hospital.</p><p><strong>Results: </strong>Through eight patient interviews (three women and five men aged 45-73 years), an overarching theme was identified: Finding peace in a new version of oneself, which deals with having to find oneself in a new role with a different body that must and can do less, at the same time with a feeling of gratitude for being alive. In addition, three subthemes arose from the time of operation and throughout the course of rehabilitation: (1) Having survived the operation-first the miracle! And what now? (2) The rehabilitation course provides security and provides well-being. (3) Becoming a whole person again.</p><p><strong>Conclusion: </strong>This study provides important insights of patients' perspectives of how structured cardiac rehabilitation after aortic dissection supports patients finding peace in a new version of themselves.</p>","PeriodicalId":94188,"journal":{"name":"Rehabilitation nursing : the official journal of the Association of Rehabilitation Nurses","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144700790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信