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Rognstad K, Engell T, Fjermestad K, Wentzel-Larsen T, Kjøbli J. Process and Implementation Elements of Measurement Feedback Systems: A Systematic Review. Adm Policy Ment Health 2023:10.1007/s10488-023-01325-3. [PMID: 38153585 DOI: 10.1007/s10488-023-01325-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2023] [Indexed: 12/29/2023]
Abstract
Measurement feedback systems (MFS) can help guide treatment and improve clinical outcomes. Studies of MFS are heterogeneous both in execution and results, and the effects of MFS seem restricted by limited attention to process and implementation elements and by limited adoption by health professionals. The current systematic review mapped the use of process and implementation elements in MFS studies. An overview of therapists' use of and attitudes toward MFS is provided. Three-level meta-analyses were used to test theoretically informed process and implementation elements as moderators of the effects of MFS. Hypotheses and general propositions from Clinical Performance Feedback Intervention Theory (CP-FIT) were used to organize the elements of the studies and were used as moderator variables. Previous studies on MFS interventions have had a limited focus on implementation efforts and process elements that may increase the effects of MFS and their use among therapists. Efforts have sparsely been made to reduce barriers to MFS use, and several studies have reported limited engagement with MFS among therapists. Therapists' attitudes toward MFS, feedback, or standardized measures were heterogeneously reported, making data synthesis challenging. Identified process and implementation elements were not significantly associated with effect sizes in the studies and the results did not support the propositions of CP-FIT. The lack of statistically significant associations may be due to limited reporting of details about process and implementation aspects. More research designed to test hypotheses regarding process and implementation elements is needed to improve the use and effects of MFS. Future studies should aspire to report findings in a manner that allows for an understanding of the implementation process and therapists' adoption of these systems.
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Affiliation(s)
- Kristian Rognstad
- Regional Center for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway.
- Department of Psychology, University of Oslo, Oslo, Norway.
| | - Thomas Engell
- Regional Center for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway
| | | | - Tore Wentzel-Larsen
- Regional Center for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway
- Norwegian Centre for Violence and Traumatic Stress Studies, Oslo, Norway
| | - John Kjøbli
- Regional Center for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway
- Department of Education, University of Oslo, Oslo, Norway
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Sagatun Å, Engell T, Brekke M, Sjølie H, Ekornes SM, Waldum-Grevboe KS, Pape K, Kvaløy K, Jeneson A, Trøan AS, Askeland AL, Stien L, Holen S. Guideline evaluation and implementation mechanisms in school health services (GuideMe): protocol for a hybrid randomized factorial trial. BMC Health Serv Res 2023; 23:1259. [PMID: 37968693 PMCID: PMC10652429 DOI: 10.1186/s12913-023-10179-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 10/18/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Norwegian school health services received a national best-practice guideline in 2017. To promote healthy life skills and identify adolescents needing support, the guideline includes strong recommendations for individual consultations with all 8th graders and increased collaboration with schools. To help implement the recommendations, a blended implementation strategy (SchoolHealth) was co-created with school nurses, students, and stakeholders. SchoolHealth consists of three implementation elements: Digital dialog and administration tool (audit and feedback +), Dialog support (external consultation), and Collaboration materials (targeted dissemination). This hybrid study will test the main and combined effects of the elements on guideline fidelity and effectiveness. METHODS The GuideMe study is a factorial cluster randomized controlled trial examining SchoolHealth's effectiveness on guideline fidelity and guideline effectiveness goals. Forty Norwegian secondary schools will be randomized to eight different combinations of the elements in SchoolHealth. Participants will include school nurses and school personnel from these schools, and 8th grade students (n = 1200). Primary outcomes are school nurses' fidelity to the guidelines and student's ability to cope with their life (i.e., health literacy, positive health behaviors and self-efficacy). Quantitative methods will be used to test effects and mechanisms, while mixed- and qualitative methods will be used to explore mechanisms, experiences, and other phenomena in depth. Participants will complete digital questionnaires at the start and end of the schoolyear, and after the consultation during the schoolyear. The study will run in two waves, each lasting for one school year. The multifactorial design allows testing of interactions and main effects due to equal distribution of all factors within each main effect. Sustainment and scale-up of optimized SchoolHealth elements using national infrastructure are simultaneously prepared. DISCUSSION The study will investigate possible effects of the implementation elements in isolation and in combination, and hypothesized implementation mechanisms. In-depth study of user experiences will inform improvements to elements in SchoolHealth. The results will yield causal knowledge about implementation strategies and the mechanisms through which they assert effects. Mixed-methods will provide insights into how and when the elements work. Optimizing guideline implementation elements can support adolescents in a crucial life phase. TRAIL REGISTRATION ISRCTN24173836. Registration date 8 August 2022.
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Affiliation(s)
- Åse Sagatun
- Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP/PILAR), Oslo, Norway.
- VID Specialized University (VID), Oslo, Norway.
| | - Thomas Engell
- Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP/PILAR), Oslo, Norway
| | - Malene Brekke
- Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP/PILAR), Oslo, Norway
- VID Specialized University (VID), Oslo, Norway
| | - Hege Sjølie
- VID Specialized University (VID), Oslo, Norway
| | - Stine M Ekornes
- Regional Centre for Child and Youth Mental Health and Child Welfare (RKBU Central Norway), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | | | - Kristine Pape
- Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Kirsti Kvaløy
- HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Annette Jeneson
- Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP/PILAR), Oslo, Norway
| | - Anna Stigum Trøan
- Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP/PILAR), Oslo, Norway
| | - Anne Liv Askeland
- Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP/PILAR), Oslo, Norway
| | - Line Stien
- Regional Centre for Child and Youth Mental Health and Child Welfare (RKBU Central Norway), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Solveig Holen
- Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP/PILAR), Oslo, Norway
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Engell T, Stadnick NA, Aarons GA, Barnett ML. Common Elements Approaches to Implementation Research and Practice: Methods and Integration with Intervention Science. Glob Implement Res Appl 2023; 3:1-15. [PMID: 37013068 PMCID: PMC10063479 DOI: 10.1007/s43477-023-00077-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 03/05/2023] [Indexed: 04/03/2023]
Abstract
We propose that common elements approaches can advance implementation research and practice and facilitate pragmatic use of intervention and implementation evidence. Common elements are practices or processes frequently shared by interventions or implementations. Traditional common elements methodologies use synthesis, distillation, and statistics to describe and evaluate the merit of common ingredients in effective interventions. Recent developments include identifying and testing common configurations of elements, processes, and context variables across the literature of effective interventions and implementations. While common elements thinking has grown popular in intervention science, it has rarely been utilized in implementation science, and specifically, combined with the intervention literature. The goals of this conceptual methodology paper are to (1) provide an overview of the common elements concept and how it may advance implementation research and usability for practice, (2) give a step-by-step guide to systematic common elements reviews that synthesizes and distills the intervention and implementation literature together, and (3) offer recommendations for advancing element-level evidence in implementation science. A narrative review of the common elements literature was conducted with attention to applications to implementation research. A six-step guide to using an advanced common elements methodology was provided. Examples of potential results are presented, along with a review of the implications for implementation research and practice. Finally, we reviewed methodological limitations in current common elements approaches, and identified steps towards realizing their potential. Common elements methodologies can (a) synthesize and distill the implementation science literature into practical applications, (b) generate evidence-informed hypotheses about key elements and determinants in implementation and intervention processes and mechanisms, and (c) promote evidence-informed precision tailoring of intervention and implementation to context. To realize this potential, common elements approaches need improved reporting of details from both successful and unsuccessful intervention and implementation research, more data availability, and more testing and investigation of causal processes and mechanisms of change from diverse theories. Supplementary Information The online version contains supplementary material available at 10.1007/s43477-023-00077-4.
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Affiliation(s)
- Thomas Engell
- Centre for Child and Adolescent Mental Health, Eastern and Southern Norway, Gullhaugveien 1-3, 0484 Oslo, Norway
| | - Nicole A. Stadnick
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093 USA
- Child and Adolescent Services Research Center, San Diego, CA 92123 USA
- University of California San Diego Altman Clinical and Translational Research Institute Dissemination and Implementation Science Center, La Jolla, CA 92093 USA
| | - Gregory A. Aarons
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093 USA
- Child and Adolescent Services Research Center, San Diego, CA 92123 USA
- University of California San Diego Altman Clinical and Translational Research Institute Dissemination and Implementation Science Center, La Jolla, CA 92093 USA
| | - Miya L. Barnett
- Department of Counseling, Clinical, & School Psychology, University of California, Santa Barbara, CA 93106-9490 USA
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Egeland KM, Engell T, Halvorsen J, Varsi C. Proceedings from the Second Annual Conference of the Norwegian Network for Implementation Research. Glob Implement Res Appl 2022; 2:332-339. [PMID: 36465950 PMCID: PMC9684746 DOI: 10.1007/s43477-022-00069-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/01/2022] [Indexed: 06/17/2023]
Abstract
In 2019, Norwegian implementation researchers formed a network to promote implementation research and practice in the Norwegian context. On November 19th, 2021, the second annual Norwegian implementation conference was held in Oslo. Ninety participants from all regions of the country gathered to showcase the frontiers of Norwegian implementation research. The conference also hosted a panel discussion about critical next steps for implementation science in Norway. The conference included 17 presentations from diverse disciplines within health and welfare services, including schools. The themes presented included stakeholder engagement, implementation mechanisms, evaluations of the implementation of specific interventions, the use of implementation guidelines and frameworks, the development and validation of implementation measurements, and barriers and facilitators for implementation. The panel discussion highlighted several critical challenges with the implementation of evidence-informed practices in Norway, including limited implementation competence and capacity among practice leaders and workforces, few opportunities for education in implementation science, limited implementation research in the Norwegian context, scarce funding possibilities for implementation research, and a lack of long-term perspectives on implementation processes. Overall, the 2021 Norwegian implementation conference showed an encouraging sign of a maturing field of science in Norway. The more voluminous proceedings from the 2020 conference called for several important advancements to improve implementation science and practice in Norway, and the 2021 conference indicates that steps have already been taken in favorable directions in terms of, for instance, research designs and measurements. However, there are still unexploited potentials for improvements in implementation research, funding, policies, and practice. Norwegian implementation researcher should be mindful of the challenges and potential pitfalls implementation science currently face as a scientific discipline. Supplementary Information The online version contains supplementary material available at 10.1007/s43477-022-00069-w.
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Affiliation(s)
- Karina M. Egeland
- Norwegian Centre for Violence and Traumatic Stress Studies (NKVTS), Oslo, Norway
| | - Thomas Engell
- Centre for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway
| | - Jeanette Halvorsen
- Norwegian Centre for Learning Environment and Behavioral Research in Education, Faculty of Arts and Education, University of Stavanger, Stavanger, Norway
| | - Cecilie Varsi
- Faculty of Health and Social Sciences, University of South-Eastern Norway, Drammen, Norway
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Helland SS, Mellblom AV, Kjøbli J, Wentzel-Larsen T, Espenes K, Engell T, Kirkøen B. Elements in Mental Health Interventions Associated with Effects on Emotion Regulation in Adolescents: A Meta-Analysis. Adm Policy Ment Health 2022; 49:1004-1018. [PMID: 35987830 PMCID: PMC9392499 DOI: 10.1007/s10488-022-01213-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 07/23/2022] [Indexed: 01/25/2023]
Abstract
PURPOSE Adolescence is a sensitive period for developing mental health problems. Interventions targeting emotion regulation have shown promising transdiagnostic effects for this group, but optimization efforts are called for. In the current study, we used an element-based approach to identify potentially active ingredients in interventions measuring emotion regulation, to guide further optimization. METHODS We coded practice elements in 30 studies based on a systematic review of mental health interventions measuring emotion regulation in adolescents (N = 2,389 participants, mean age 13-17 years). Using a three-level modeling approach, we then investigated the difference in effect on emotion regulation between studies of interventions with and without these practice elements. RESULTS We identified 75 practice elements and 15 element categories used in the included interventions. Results showed significantly stronger effects on emotion regulation when interventions included the practice elements Setting goals for treatment (difference in d = 0.40, 95% CI [0.09, 0.70], p = .012) and Psychoeducation about acceptance (difference in d = 0.58, 95% CI [0.09, 1.07], p = .021). Furthermore, a total of 11 elements and four overall categories were identified as potentially active ingredients, based on an effect size difference of > 0.20 between interventions with and without the elements. CONCLUSION The results can direct experimental research into the selection of practices that are most likely key to mechanisms of change in interventions addressing emotion regulation for adolescents. The challenge of measuring emotion regulation is discussed.
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Affiliation(s)
- Siri Saugestad Helland
- Regional Center for Child and Adolescent Mental Health (RBUP), Southern and Eastern Norway, Gullhaugveien 1-3, 0484 Oslo, Norway
| | - A. V. Mellblom
- Regional Center for Child and Adolescent Mental Health (RBUP), Southern and Eastern Norway, Gullhaugveien 1-3, 0484 Oslo, Norway
| | - J. Kjøbli
- Regional Center for Child and Adolescent Mental Health (RBUP), Southern and Eastern Norway, Gullhaugveien 1-3, 0484 Oslo, Norway ,Institute of Education, University of Oslo, Oslo, Norway
| | - T. Wentzel-Larsen
- Regional Center for Child and Adolescent Mental Health (RBUP), Southern and Eastern Norway, Gullhaugveien 1-3, 0484 Oslo, Norway ,Norwegian Centre for Violence and Traumatic Stress Studies, Oslo, Norway
| | - K. Espenes
- Regional Center for Child and Adolescent Mental Health (RBUP), Southern and Eastern Norway, Gullhaugveien 1-3, 0484 Oslo, Norway
| | - T. Engell
- Regional Center for Child and Adolescent Mental Health (RBUP), Southern and Eastern Norway, Gullhaugveien 1-3, 0484 Oslo, Norway
| | - B Kirkøen
- Regional Center for Child and Adolescent Mental Health (RBUP), Southern and Eastern Norway, Gullhaugveien 1-3, 0484 Oslo, Norway
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Stadnick NA, Aarons GA, Blake L, Brookman-Frazee LI, Dourgnon P, Engell T, Jusot F, Lau AS, Prieur C, Skar AMS, Barnett ML. Leveraging implementation science to reduce inequities in Children's mental health care: highlights from a multidisciplinary international colloquium. BMC Proc 2020; 14:2. [PMID: 32280371 PMCID: PMC7132860 DOI: 10.1186/s12919-020-00184-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND AND PURPOSE Access to evidence-based mental health care for children is an international priority. However, there are significant challenges to advancing this public health priority in an efficient and equitable manner. The purpose of this international colloquium was to convene a multidisciplinary group of health researchers to build an agenda for addressing disparities in mental health care access and treatment for children and families through collaboration among scholars from the United States and Europe engaged in innovative implementation science and mental health services research. KEY HIGHLIGHTS Guided by the Exploration, Preparation, Implementation, and Sustainment (EPIS) Framework, presentations related to inner, outer, and bridging context factors that impact the accessibility and quality of mental health evidence-based practices (EBPs) for children and families. Three common topics emerged from the presentations and discussions from colloquium participants, which included: 1) the impact of inner and outer context factors that limit accessibility to EBPs across countries, 2) strategies to adapt EBPs to improve their fit in different settings, 3) the potential for implementation science to address emerging clinical and public health concerns. IMPLICATIONS The common topics discussed underscored that disparities in access to evidence-based mental health care are prevalent across countries. Opportunities for cross-country and cross-discipline learnings and collaborations can help drive solutions to address these inequities, which relate to the availability of a trained and culturally appropriate workforce, insurance reimbursement policies, and designing interventions and implementation strategies to support sustained use of evidence-based practices.
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Affiliation(s)
- Nicole A. Stadnick
- University of California San Diego, La Jolla, CA 92093 USA
- Child and Adolescent Services Research Center, San Diego, CA 92123 USA
- University of California San Diego Dissemination and Implementation Science Center, La Jolla, CA 92093 USA
| | - Gregory A. Aarons
- University of California San Diego, La Jolla, CA 92093 USA
- Child and Adolescent Services Research Center, San Diego, CA 92123 USA
- University of California San Diego Dissemination and Implementation Science Center, La Jolla, CA 92093 USA
| | - Lucy Blake
- Faculty of Health, Social Care & Medicine, Edge Hill University, Ormskirk, Lancashire UK
| | - Lauren I. Brookman-Frazee
- University of California San Diego, La Jolla, CA 92093 USA
- Child and Adolescent Services Research Center, San Diego, CA 92123 USA
- University of California San Diego Dissemination and Implementation Science Center, La Jolla, CA 92093 USA
- Autism Discovery Institute, Rady Children’s Hospital, San Diego, USA
| | - Paul Dourgnon
- Institut de Recherche et Documentation en Economie de la Santé, Paris, France
| | - Thomas Engell
- Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway, Oslo, Norway
| | - Florence Jusot
- Institut de Recherche et Documentation en Economie de la Santé, Paris, France
- Université Paris-Dauphine, Paris, France
| | - Anna S. Lau
- Child and Adolescent Services Research Center, San Diego, CA 92123 USA
- University of California, Los Angeles, Los Angeles, CA 90095 USA
| | | | | | - Miya L. Barnett
- Child and Adolescent Services Research Center, San Diego, CA 92123 USA
- University of California, Santa Barbara, Santa Barbara, CA 93106 USA
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Engell T, Follestad IB, Andersen A, Hagen KA. Knowledge translation in child welfare-improving educational outcomes for children at risk: study protocol for a hybrid randomized controlled pragmatic trial. Trials 2018; 19:714. [PMID: 30594236 PMCID: PMC6311076 DOI: 10.1186/s13063-018-3079-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 11/26/2018] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND In Norway, a disproportionately high number of children receiving Child Welfare Services (CWS) struggle academically and drop out of school. Academic attainment is one of the strongest protective factors against societal marginalization. The present study is part of a knowledge translation project in collaboration with local CWS with the aim to develop, implement, and evaluate Enhanced Academic Support (EAS) for primary school children in CWS. METHODS/DESIGN The study is a mixed-methods hybrid type 2 randomized, controlled pragmatic trial. The participants are approximately 120 children whose families receive support measures from three child welfare agencies in and around Oslo, Norway, and practitioners from these agencies. Families are randomly assigned to either the EAS condition or "business as usual" support. Primary outcomes are math and reading skills, parental involvement in school, and intervention fidelity. Questionnaires and academic tests are administered at baseline, post-intervention (after 6 months), and at follow-up (after 12 months). Implementation drivers are assessed before and after the trial period, and intervention fidelity is monitored during the trial through checklists and structured telephone interviews. Semi-structured interviews and focus groups are conducted after the trial. DISCUSSION This hybrid study has two implications. (1) The effects of providing EAS to children in child welfare will be investigated. The study also explores how each core component of the intervention and the use of specific adaptations, implementation drivers, and other important child-level covariates moderate the overall effects. The results can provide valuable knowledge about how to deliver precise and effective academic support to increase academic skills and prevent dropout. In turn, this can promote academic completion and well-being, outcomes that are beneficial for both children and society at large. (2) The study also evaluates the feasibility of applying an Integrated Knowledge Translation model designed to develop, implement, and evaluate research-supported practice in health, care, and welfare services in less time than is usually the case. If deemed successful, this model will provide an efficient collaborative approach to translate the best available evidence into effective evidence-based practice, applicable in effectiveness research and quality improvement efforts. TRIAL REGISTRATION ISRCTN, ISRCTN38968073 . Registered on 18 September 2017. https://doi.org/10.1186/ISRCTN38968073 .
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Affiliation(s)
- Thomas Engell
- The Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway, PO Box 4623, 0405 Oslo, Norway
| | - Ingvild Barbara Follestad
- The Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway, PO Box 4623, 0405 Oslo, Norway
| | - Anne Andersen
- The Regional Centre for Child and Adolescent Mental Health, Eastern and Southern Norway, PO Box 4623, 0405 Oslo, Norway
| | - Kristine Amlund Hagen
- The Norwegian Center for Child Behavioral Development (NCCBD), a University of Oslo affiliate, Postboks 7053 Majorstuen, 0306 Oslo, Norway
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Abstract
OBJECTIVE To investigate patients with acute optic neuritis (ON) for changes of the retinal veins. MATERIAL AND METHODS Seventy-six patients with acute ON were extensively neuro-ophthalmologically examined. RESULTS Multiple sclerosis (MS) was found in 41 patients of whom 1 had periphlebitis retinae (PR) and 2 had venous sheathing (VS). Probable MS was found in 15 patients without prior symptoms of MS. One had PR and VS, and 2 had VS. Twenty patients had mono-symptomatic ON, none had retinal changes. CONCLUSION Changes of the retinal veins should alert the clinician to a probable diagnosis of MS. ON appears frequently as the initial symptom of MS. Our observation of VS in these patients suggest that clinically silent retinal disease activity had occurred prior to the ON.
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Affiliation(s)
- T Engell
- Department of Ophthalmology, Sønderborg Hospital, Denmark
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Abstract
This is the first study on the frequency, size, number, and location of plaques in clinically silent MS. Among the present 18 patients in whom MS was unexpectedly diagnosed at autopsy, it had been clinically silent in 13. An estimate of the prevalence of silent MS is about 25% of that diagnosed in vivo. In the silent group, the MS plaques were located mainly in the periventricular areas, and this may explain the silent nature of the disease.
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Affiliation(s)
- T Engell
- Danish Multiple Sclerosis Register, Copenhagen
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Abstract
The diagnosis of multiple sclerosis (MS) is clinical and verifiable at post mortem. Neuropathological examination of 518 consecutive patients with clinically definite MS revealed a correct diagnosis in 485 cases (94%). Clinical diagnosis had been established by a neurologist in all cases. Erroneous diagnosis included a variety of other neurological disorders. Also investigated was a randomly selected series of 33 patients with a clinical diagnosis of probable MS: post mortem confirmation of MS was obtained in circa 66%, for the remainder the error pattern was similar to the above. Clinical diagnosis of definite MS was correct in 94% cases. Laboratory tests and examinations have not radically improved diagnosis. Neuropathological examination may occasionally fail to demonstrate MS plaques if the optic nerves are not investigated.
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Affiliation(s)
- T Engell
- Eye Department, Hvidovre Hospital, Denmark
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Engell T, Trojaborg W, Raun NE. Subclinical optic neuropathy in multiple sclerosis. A neuro-ophthalmological investigation by means of visually evoked response, Farnworth-Munsell 100 Hue test and Ishihara test and their diagnostic value. Acta Ophthalmol 1987; 65:735-40. [PMID: 3434241 DOI: 10.1111/j.1755-3768.1987.tb07073.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Affection of the optic nerves play a central role in multiple sclerosis (MS) symptomatology. In reported autopsy series the prevalence of optic neuropathy has approached 100%. In the present study subclinical affection of the optic nerves was investigated by visual evoked response (VER), Farnworth-Munsell 100 Hue test (FM 100 Hue test) and Ishihara plates in 17 patients with normal visual acuity and without a history of acute optic neuritis. Optic neuropathy was demonstrated in 72% of the eyes. The occurrence of optic neuropathy was also investigated by the same methods in 16 patients with previous acute optic neuritis, which was bilateral in 5 patients. Affection of the optic nerves was demonstrated in 95% in this group. The affection of also the fellow eye in patients with previous monolateral optic neuritis is unexplained. It may be an analogue to the symmetry of plaques found in the brain and the spinal cord. The cause of this peculiar distribution of lesions is, like the ethiology of MS, unexplained at present. In comparing the different methods of demonstrating optic neuropathy, VER is recommended as the method of choice.
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Affiliation(s)
- T Engell
- Ophthalmologic Clinic, Rigshospitalet, Copenhagen, Denmark
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Abstract
Periphlebitis retinae in multiple sclerosis appears as transitory cellular infiltrations around veins in an otherwise normal retina. Similar cellular infiltrations have been found around veins in the central nervous system. In the present study the blood-retinal barrier has been investigated by vitreous fluorophotometry. Eight multiple sclerosis patients with actual periphlebitis retinae and 9 patients with previous but not active periphlebitis retinae were included in this study. Abnormal leakage of fluorescein was manifest in the group of multiple sclerosis patients with periphlebitis retinae. Permeability (1.8 +/- 0.2 X 10(-7) cm/sec; mean +/- SEM) but not in the control group as a whole permeability (1.3 +/- 0.1 X 10(-7) cm/sec; mean +/- SEM) compared to 17 normals (permeability 1.1 +/- 0.005). It is thus concluded that breakdown of the blood-retinal barrier may be transitory when connected with periphlebitis retinae in multiple sclerosis.
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Abstract
Periphlebitis retinae (PR) in multiple sclerosis (MS) is seen as cuffs around veins in the otherwise normal retinae. The frequency of PR in MS varies considerably between different series, approximately from 5 to 25%. The aim of the present study was to investigate if PR, when present, is correlated to neurological disease activity. No similar study has been performed to the author's knowledge. The prevalence of PR in a hospital material of 135 MS patients was 15%, compared to the frequency of 5% found in 168 MS patients examined at a Rehabilitation Center. Thus a three times higher frequency was found in the hospital material which comprised more patients with active disease. The status of neurological disease activity was assessed in 27 patients at the occurrence of PR. One patient only had stationary disease. The frequency of malignant MS in the 27 PR patients was 26% versus 9%. The present study suggests a correlation between neurological disease activity and PR in MS patients.
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Engell T, Hvidberg A. Recurrence of periphlebitis retinae in multiple sclerosis. Acta Ophthalmol 1985; 63:80-2. [PMID: 3993350 DOI: 10.1111/j.1755-3768.1985.tb05220.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Periphlebitis retinae (PR) in multiple sclerosis (MS) is defined as ophthalmoscopically visible cuffs around veins in the otherwise normal retina. PR in MS has been suggested to be of a recurring nature, but to the authors knowledge this is the first study in which PR in MS has been seen to recur. A recurrence of PR in MS reflects the neurological progress. The material is unique because of the span of years these patients have been followed. In the 4 patients here presented the interval between the two episodes of PR was 16, 13, 5 and 0.5 years, respectively.
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Abstract
The reported findings of periphlebitis retinae (PR) at autopsy, in which brain autopsy was also performed, in 2 patients with multiple sclerosis (MS) are, so far as the authors are aware, the first histological account of this manifestation of the disease. The similarity between the cellular accumulations around the veins of the central nervous system seen in multiple sclerosis and the periphlebitic cellular accumulations here described suggests that periphlebitis is an initial event in plaque formation.
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Engell T, Hvidberg A, Uhrenholdt A. Multiple sclerosis: periphlebitis retinalis et cerebro-spinalis. A correlation between periphlebitis retinalis and abnormal technetium brain scintigraphy. Acta Neurol Scand 1984; 69:293-7. [PMID: 6087597 DOI: 10.1111/j.1600-0404.1984.tb07815.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Periphlebitis retinae (PR) in multiple sclerosis (MS) is seen as transitory infiltrations around veins in the otherwise normal retina. Cellular infiltrations have been found around veins in the central nervous system (CNS), where it has been suggested that they are the first event in plaque formation. Technetium brain scans are usually normal in MS patients, but transitory abnormal scans of the cerebrum have been found in MS patients during acute attack or exacerbation. In order to test the hypothesis that active PR is a sign of simultaneous disease activity in the CNS, 29 technetium brain scans were carried out on 14 MS patients with active PR and on 15 MS patients without any signs of PR. Significantly more of the patients with active PR, compared with MS patients with previous PR, displayed abnormal brain scans. This indicates that a disruption of the blood brain barrier (BBB) and active PR occur simultaneously in MS.
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Abstract
Age at onset, debut symptoms, optic nerve signs, and severity of symptoms were evaluated from the medical records of 135 patients with MS. HLA-D/DR2 was significantly more frequent in rapidly progressive MS, and D/DR2 seemed to confer both susceptibility to the disease and to more rapid progression. However, D/DR3 seemed to protect against rapid progression.
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