Review Article | Open Access
Emanuele Maria Giusti, Gianluca Castelnuovo, Enrico Molinari, "Differences in Multidisciplinary and Interdisciplinary Treatment Programs for Fibromyalgia: A Mapping Review", Pain Research and Management, vol. 2017, Article ID 7261468, 19 pages, 2017. https://doi.org/10.1155/2017/7261468
Differences in Multidisciplinary and Interdisciplinary Treatment Programs for Fibromyalgia: A Mapping Review
Fibromyalgia is a multifaceted chronic pain syndrome and the integration of different health disciplines is strongly recommended for its care. The interventions based on this principle are very heterogeneous and the difference across their structures has not been extensively studied, leading to incorrect conclusions when their outcomes are pooled. The objective of this mapping review was to summarize the characteristics of these programs, with particular focus on the integration of their components. We performed a search of the literature about treatments for fibromyalgia involving multiple disciplines on PubMed and Scopus. Starting from 560 articles, we included 22 noncontrolled studies, 10 controlled studies, and 17 RCTs evaluating the effects of 38 multidisciplinary or interdisciplinary interventions. The average quality of the studies was low. Their outcomes were usually pain intensity, quality of life, and psychological variables. We created a map of the programs based on the degree of integration of the included disciplines, which ranged from a juxtaposition of few components to a complex harmonization of different perspectives obtained through teamwork strategies. The rehabilitation programs were then thoroughly described with regard to the duration, setting, therapeutic components, and professionals included. The implications for future quantitative reviews are discussed.
Fibromyalgia is a chronic pain condition of unknown etiology which affects mainly women and is characterized by stiffness, fatigue, disturbed sleep, cognitive impairment, and psychological distress, posing a significant threat to the quality of life of affected individuals [1–3]. The complex features of the syndrome and its various symptoms are partially explained by central sensitization processes that interact with psychological and social factors, leading to a phenomenon where the impact of each component is multiplied and acts in a synergic manner [4, 5]. Given its multifaceted nature and the poor efficacy of standard medical interventions, the integration of different health disciplines for its understanding and for the development of specific treatments has long been advocated [6–10]. As a result, a large number of interventions combining techniques drawn from different fields (e.g., medicine, psychology, and physical therapy) have been developed and have proven to be effective for the improvement of the various symptoms of the syndrome [11–15]. Nonetheless, these programs are very heterogeneous in terms of duration, objectives, setting, format, therapeutic components, and professionals involved. This great variability is reflected by different organizational frameworks of the pain treatment facilities and casts some doubt on the possibility of pooling the results of trials evaluating their interventions [16, 17]. The composition of the rehabilitation teams and the integration between their members seem to be especially important in distinguishing the various programs, since there is a wide difference with regard to how their various disciplines are harmonized, combined, or juxtaposed. Conversely, terms such as “multimodal,” “multicomponent,” “multidisciplinary,” and “interdisciplinary” are often used as synonyms [18, 19]. From a theoretical point of view, the difference between these concepts is substantial. The terms “multimodal” and “multicomponent” have not received yet a clear definition. Multimodality generally refers to the combination of multiple therapeutic components, not necessarily provided by different operators. The expression “multicomponent treatments” indicates the presence of interventions provided by different team members, without clarifying how they are integrated . Conversely, the other two terms define how these components are combined. Multidisciplinarity refers to the addition of the competencies of multiple professionals who stay within the boundaries of their fields, whereas interdisciplinarity denotes that the various disciplines are coordinated toward a common and coherent approach . Multidisciplinary and interdisciplinary treatments are therefore conceptually different and this difference should be reflected in their structures. Especially in the case of programs addressing a complex disorder, such as the fibromyalgia syndrome, this issue must be taken into account for the sake of a critical appraisal of the literature, which can be a preliminary step for quantitative synthesis. The objective of this review of the literature is therefore to describe, map, and summarize the characteristics of treatments for fibromyalgia involving multiple health disciplines, with a focus on how these disciplines are integrated.
A mapping review of the literature was performed. Mapping reviews usually aim to retrieve, catalog, and map all the evidence about a research topic [21, 22]. We adapted their methodological design in order to use rehabilitation programs as units of analysis. Therefore, instead of investigating the characteristics and the results of the included papers, we focused on the information about the interventions that were described.
We conducted a comprehensive search in PubMed and Scopus of all the available original research reports describing and evaluating multidisciplinary, interdisciplinary, or multicomponent interventions for fibromyalgia up to April 2016. We used these keywords in both databases: fibromyalgia, multidisciplinary, interdisciplinary, multicomponent, and integrated treatments. The studies were scanned according to the inclusion (description and evaluation of a multicomponent intervention involving at least two operators from different disciplines, fibromyalgia as primary diagnosis, and English language) and exclusion (review as publication type, single-case studies, and workplace interventions) criteria. Since our aim was to describe the various treatment programs and we were not interested in a quantitative evaluation of their outcomes, we included both RCTs, nonrandomized trials and noncontrolled trials. We also included studies evaluating outcome predictors, if they provided data about the effects of the interventions. A first scanning was based only on the titles and the abstracts of the retrieved research articles. After this first step, the full text of the remaining papers was accessed and we assessed the methodological quality of the studies. Since we included both controlled and noncontrolled trials, we adapted the SIGN checklist for randomized controlled trials  adding four items from the Downs and Black Checklist  (i.e., use of appropriate analyses, assessment of confounders, use of a representative sample, and intervention integrity) (Table 1). We used its scores to rate the studies as of “high,” “medium,” “low,” and “insufficient” quality. Questions from 2 to 6 were not considered during the evaluation of noncontrolled studies.
|Note. During the assessment of noncontrolled studies, items from (2) to (6) were not considered.|
We then employed a specifically created data extraction sheet to retrieve all the available information about number of study participants, dropout, professionals involved in the treatment, group/individual setting, inpatient/outpatient format, duration, components of the interventions, and treatment outcomes. When possible, we tried to locate and report the information about how the different disciplines are integrated with each other, in order to provide a brief outline of the program. In case of unclear or missing information, we initially tried to locate other descriptions consulting other studies of the same authors. If no other relevant studies were found, we tried to contact the authors of the articles and we asked them for additional information. All the data about the treatments were finally inserted in a MS Excel spreadsheet and were used to map the included interventions.
3.1. Study Selection and Characteristics
The initial database search identified 560 records, of which 90 were selected for a full-text examination. The final database included 49 papers describing 38 different interventions that were administered to a total of 6013 subjects (Figure 1).
We found 22 papers describing noncontrolled studies, 10 describing controlled studies, and 17 describing RCTs (Table 2). The majority of the articles mainly reported the effects of a multicomponent treatment, whereas six papers mainly reported analyses on outcome predictors, one trial compared two multidisciplinary treatments, and three trials evaluated the effects of adding a treatment component to existing multidisciplinary treatments. The average methodological quality of the studies was low; 3 noncontrolled trials, 5 controlled trials, and 10 RCTs were rated as of medium quality and 6 studies were rated as of high quality. Their outcomes were usually pain intensity, psychological variables (such as anxiety, depression, distress, pain catastrophizing, coping skills, and self-efficacy), quality of life, and improvement in the overall score of the Fibromyalgia Impact Questionnaire.
3.2. Multidisciplinary and Interdisciplinary Programs
Among the studies included in the review, the terms “multimodal” and “multicomponent” were rarely employed and were never used as primary descriptors of the structure of the interventions, whereas 25 treatments were defined as “multidisciplinary” and 11 as “interdisciplinary.” However, there was not a clear distinction between these concepts. In some cases, the terms were used interchangeably or were incorrectly employed (e.g., [71, 73] or ). More generally, the programs were very heterogeneous with regard to the strategies that were employed to integrate the different perspectives of the operators and can be mapped in a continuum which starts with multidisciplinary treatments involving few disciplines whose components are simply added and ends with more complex interventions that are based on a coordinated assessment and care (see Figure 2).
Most of the treatments were based on various components that were juxtaposed, so that the patient met the different health operators in different moments of the program in a standardized manner. A few interventions were more flexible and allowed the operators to tailor the programs, in terms of number and intensity of the therapeutic components, to the needs and characteristics of the patients. More integrated approaches were organized so that some or the majority of the treatment sessions were led by two or more professionals jointly. In other cases, weekly team meetings were planned to discuss the patients, allowing a constant dialog between the operators. This could be added to other strategies, such as providing education about interdisciplinary work or tailoring the various components to the patients, in order to provide more effective integration of the different disciplines.
3.3. Description of the Interventions
The main characteristics of the interventions are reported in Table 3. Most of the programs were based on an outpatient setting; only five intensive treatments were provided in hospital inpatient services. Only four programs were mainly administered individually, six interventions included both group and individual activities, and the other 28 treatments were mainly group-based. There was a great variety with regard to the duration and the intensity of the interventions. The median duration was 7 weeks, but there were both very brief treatments lasting for less than a week (e.g., ) and very long treatments lasting for one year (e.g., ). With regard to the intensity, there were both intensive programs (e.g., ) and interventions including less than twelve hours of therapies (e.g., ), with a median of 42 hours of treatment.
The number and the choice of the disciplines that were integrated in the various interventions were very variable, as well as their relative importance. As a consequence, it was not possible to categorize the programs creating clusters based on the professionals included. Physicians, physical therapists, and psychologists were the most employed operators, followed by occupational therapists, nurses, social workers, dietitians, and other professionals such as Qi-gong instructors, kinesiologists, and massage therapists.
The main therapeutic components included in the various rehabilitation programs were education about fibromyalgia and physical exercise, which were present in 36 out of 38 programs. Education was generally based on group lectures about the syndrome, its symptoms, its prognosis, and the biopsychosocial factors influencing its long-term progression and its daily course. The prescribed physical activity was various and included aerobic, pool, and strengthening exercises. 19 programs provided some psychotherapy sessions under the cognitive-behavioral approach, generally focused on symptom management. Both the educational lectures and the psychotherapeutic sessions could also be focused on teaching the patients to self-manage their symptoms and on enhancing group discussions among the participants. Besides these common therapeutic components, other forms of interventions were usually provided. These include, for instance, occupational therapies, biofeedback, massage therapies, relaxation, Acceptance and Commitment Therapy sessions, and dietary counseling.
The objective of this review was to describe the characteristics of the available integrated interventions for fibromyalgia, focusing on how the different disciplines are integrated with each other. Our study, therefore, is embedded in two lines of inquiry, that is, the discussion about multidisciplinarity and interdisciplinarity in the healthcare and the evaluation of multicomponent treatment for chronic pain conditions.
With regard to the first, our study is in line with and finds support for the predominant theoretical perspective which describes multidisciplinarity and interdisciplinarity as two parts of the same continuum [18, 19]. Employing the original perspective of analyzing how the integration of the different disciplines is provided by the various programs, we found that the possible organizational frameworks are multiple and are characterized by different degrees of complexity. On the one hand, less integrated programs provide a juxtaposition of two or more different disciplines, which are simply added. These programs can be seen as the prototype of multidisciplinary interventions, since every operator works independently, there is no overlap between the different treatment modalities, and the program is generally organized in a vertical manner . However, we found that there are multidisciplinary programs which use a more flexible and integrated framework, which allows us to modify the treatment and to involve the patient in the decisions about his/her care. In more cohesive programs, some or the majority of the education or pain management sessions are jointly conducted by different operators, allowing the professionals to build a shared perspective regarding the various topics. Prototypical interdisciplinary models seem however to be based on weekly team discussions about the patients, which can be accompanied by other strategies, such as education about interdisciplinary work, a coordinated assessment, or providing sessions jointly conducted by the operators. The presence of team meetings seems to be considered by the authors of the studies included in this review as the main characteristic which defines their treatment as “interdisciplinary,” partly overlooking other components such as creating common goals, making team conferences with the patient and his/her family, and providing shared leadership and a comprehensive assessment [75, 76].
With regard to the evaluation of the multicomponent interventions for fibromyalgia, our study represents a first step for conducting a quantitative synthesis of the literature. As we had hypothesized, we found that the programs included in our review were very heterogeneous in terms of number, type, and integration of the components and professionals, as well as in terms of duration and intensity. Previous analyses of the literature did not successfully address this diversity. Hauser and colleagues  performed a meta-analysis on 7 RCTs evaluating multicomponent treatments for fibromyalgia, finding support for their short-term efficacy. The author conducted a sensitivity analysis based only on the methodologic quality and the duration of the programs. A previous Cochrane review  attempted to include all the interventions which contained both a medical and a psychological, social, or vocational component, finding four RCTs and showing that these interventions did not provide quantifiable benefits. Different from our study, the authors did not address the differences with regard to format, setting of the program, and integration of operators and therapeutic components. More recently, Papadopoulou et al.  evaluated all the pharmacological and nonpharmacological interventions for fibromyalgia, finding support for multidisciplinary treatments based on 8 RCTs, which were not described. Similarly, other reviews focusing on various chronic pain conditions found that multicomponent programs are effective for the treatment of fibromyalgia but did not address their heterogeneity [12, 78]. Our study was not aimed at a quantitative evaluation of the outcomes of these programs but provides a detailed description of the various programs identifying some key characteristics that must be taken into account by future systematic reviews and meta-analyses. In particular, the most varying factors were the duration and the intensity of the programs, the treatment components, and the strategies of integration of the operators. It is needed that future quantitative reviews separately analyze studies evaluating treatments with different structures and assess the moderator effect of the temporal characteristics of the programs.
Some important remarks need to be made. On the one hand, we focused only on studies which included multiple disciplines performed by multiple operators. Therefore, we excluded the papers which did not state clearly that multiple professionals were present and we focused on programs performed by rehabilitation teams. As a consequence, our description is limited to these treatments and it is possible that some multidisciplinary programs were excluded due to poor descriptions of their structure. In addition, our findings are based on brief reports included in scientific papers, and it is possible that important characteristics of the evaluated interventions were missing and that the whole of the multidisciplinary and interdisciplinary rehabilitation programs is misrepresented by our sample. Finally, our electronic search was limited to two databases and to papers written in English language, limiting the comprehensiveness of the review.
However, to our knowledge, this is the first study which attempts to map the characteristics of multicomponent interventions for fibromyalgia. In addition, performing this mapping review allowed us to create a comprehensive database of studies that can be used for further analyses and that is available upon request. We are persuaded that the integration of the various disciplines is a key factor for the treatment of such a condition. It is possible that the more the perspectives of the various professionals are integrated, the more the patients are able to comprehend the complexity of their syndrome and can be conscious about how the different biological, psychological, and social factors affect its course.
Multidisciplinary and interdisciplinary treatments must be considered as two ends of the same continuum. The degrees of integration of their component do not depend only on the juxtaposition or on the overlap between the various competences but rely on the possibility of tailoring the programs to the patients or on the presence of co-led sessions, team meetings, and a coordinate assessment. The various studies are very heterogeneous with regard to most of the variables described in our review. This diversity will need to be taken into account by future quantitative reviews of the literature.
Conflicts of Interest
The authors declare that there are no conflicts of interest regarding the publication of this paper.
The authors would like to thank Dr. Giorgio Cruccu for comments that greatly improved the manuscript.
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