Somatoform Disorder in Primary Care: Course and the Need for Cognitive-Behavioral Treatment

Body dysmorphic disorder in individuals requesting cosmetic surgery: A systematic review and meta-analysis

BACKGROUND

Body dysmorphic disorder (BDD) is known as a mental disorder in which a person suffers from concern and distress with the perceived defects in their appearance and subsequently can experience significant impairment in social, occupational, and interpersonal functioning. Various studies have reported different BDD prevalence rates in patients with cosmetic surgery. However, there has been no comprehensive study that has examined the results of these studies. Therefore, this study aims to determine BDD prevalence in individuals requesting cosmetic surgery in a systematic review and meta-analysis.

METHODS

In this review study, a search was conducted in national and international databases of Cochrane, Embase, ScienceDirect, Scopus, PubMed, and Web of Science (WoS) between 1878 and January 2020. A random-effects model was used to analyze the data, and heterogeneity of studies was examined with the I² index. Data analysis was done using comprehensive meta-analysis (Version 2).

RESULTS

BDD prevalence in individuals requesting cosmetic surgery in 48 articles with a sample size of 14,913 was 19.2% (95% CI: 15.8-23%). Regarding heterogeneity based on meta-regression, a significant difference between the sample size (p<0.001) and BDD prevalence in patients with cosmetic surgery was observed.

CONCLUSION

The results of this study showed that BDD prevalence in individuals requesting cosmetic surgery is high. Therefore, with the provision of feedback at hospitals, appropriate interventions, such as pre-screening for body image disturbance, should be mandated.

Engaging patients with "medically unexplained symptoms" in psychological therapy: An integrative and transdiagnostic approach

OBJECTIVES

Patients with "medically unexplained symptoms" or "MUS" experience subjectively compelling and distressing somatic symptoms that are not fully explained by underlying physical pathology. Effective treatment of these patients has been impeded by multiple barriers. Problems with patient engagement have been highlighted in the clinical and research literature, yet few exploratory studies have been conducted in this area. This research explores how experienced psychological therapists in a specialist MUS service work to engage these patients.

DESIGN

An in-depth qualitative study was conducted to explore the process of engaging patients with MUS in psychological therapy.

METHOD

Semi-structured depth interviews were conducted with psychological therapists who work with complex patients with MUS. The therapists interviewed were recruited from an NHS primary care psychological therapy service that specializes in working with this patient group. Data were analysed using grounded theory to develop a model of this process.

RESULTS

The analysis identified how multiple interacting layers of systemic, interpersonal, and intrapsychic disconnections impede engagement. The research introduces a new theoretical framework 'Negotiating disconnection' that conceptualizes the process of engagement in terms of a series of stages, namely 'Drawing in' (negotiating systemic disconnection), 'Meeting' (connecting in the disconnection), and 'Nudging Forward' (cultivating new connections), and illustrates how these are negotiated by therapists.

CONCLUSIONS

The model shows that it is critical for therapists to collaborate closely with GPs to engage these patients while also highlighting barriers to doing this, reflecting the complexities of organizational and cultural change. Clinically, the model illustrates the importance of adopting a flexible, pluralistic, and integrative approach that is person-centred and process-led. Doctors and therapists should embrace a holistic, biopsychosocial stance towards MUS and be sensitively attuned to its complex phenomenology.

PRACTITIONER POINTS

To engage patients with MUS psychological therapists should be person-centred and process-led rather than theory- or protocol-led. A pluralistic and integrative mindset facilitates this by enhancing clinicians' flexibility. A multidisciplinary approach is essential. Clinicians should embrace a biopsychosocial stance towards MUS and work closely with medical colleagues to help them do the same. Structural and cultural change is needed to tackle this issue effectively.

Medically Unexplained Physical Symptoms: What They Are and Why Counseling Psychologists Should Care about Them

Medically unexplained symptoms and syndromes (MUS) affect the health of 20%-30% of patients seen in primary care. Optimally, treatment for these patients requires an interdisciplinary team consisting of both primary care and mental health providers. By developing an expertise in MUS, counseling psychologists can improve the care of patients with MUS who are already in their practice, expand the number of patients they help, and enhance the integration of counseling psychology into the broader medical community. Additionally, counseling psychologists' expertise in culture, attunement to therapeutic processes, and our focus on prioritizing patients' perspectives and quality of life can fill the gap in research on MUS and bringing increased attention to counseling psychologists' unique contributions to health service delivery.

Treatment course and its predictors in patients with somatoform disorders: A routine outcome monitoring study in secondary psychiatric care

AIM

Somatoform disorders are common and often chronic. It would be helpful to distinguish those patients who are likely to have a positive treatment course from those who are likely to follow a negative course. Such studies of different somatoform disorders are scarce, especially in secondary psychiatric care. This study examined the 6-month treatment course of psychological, physical symptoms, and functioning, and its predictors in a naturalistic sample of secondary psychiatric care outpatients with somatoform disorders.

METHOD

The present study used routine outcome monitoring data of patients with somatoform disorders regarding their 6-month treatment course of psychological and physical symptoms as well as functioning. The following patient groups were included: total group of somatoform disorders (N = 435), and undifferentiated somatoform disorder (N = 242), pain disorder (N = 102), body dysmorphic disorder (N = 51), and hypochondriasis (N = 40). Measures were Mini-International Neuropsychiatric Interview plus, Brief Symptom Inventory, Montgomery-Ǻsberg Depression Rating Scale, Brief Anxiety Scale, Short Form Health Survey 36, and Physical Symptom Checklist (PSC).

RESULTS

The study population generally showed high co-morbidity, especially with anxiety and mood disorders. The PSC total score, body dysmorphic disorder, and hypochondriasis were significant predictors for the treatment course of symptoms (Brief Symptom Inventory), whereas the PSC total score was the only significant predictor for the course of functioning (Short Form Health Survey 36).

CONCLUSION

Secondary psychiatric care outpatients with somatoform disorders showed high co-morbidity with anxiety and mood disorders, and an unfavourable 6-month course of both symptoms and functioning. Clinical implications are discussed, such as additional treatment of co-morbidity in somatoform disorders.

Systematic review of measurement properties of questionnaires measuring somatization in primary care patients

OBJECTIVE

The aim of this review is to critically appraise the evidence on measurement properties of self-report questionnaires measuring somatization in adult primary care patients and to provide recommendations about which questionnaires are most useful for this purpose.

METHODS

We assessed the methodological quality of included studies using the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) checklist. To draw overall conclusions about the quality of the questionnaires, we conducted an evidence synthesis using predefined criteria for judging the measurement properties.

RESULTS

We found 24 articles on 9 questionnaires. Studies on the Patient Health Questionnaire-15 (PHQ-15) and the Four-Dimensional Symptom Questionnaire (4DSQ) somatization subscale prevailed and covered the broadest range of measurement properties. These questionnaires had the best internal consistency, test-retest reliability, structural validity, and construct validity. The PHQ-15 also had good criterion validity, whereas the 4DSQ somatization subscale was validated in several languages. The Bodily Distress Syndrome (BDS) checklist had good internal consistency and structural validity. Some evidence was found for good construct validity and criterion validity of the Physical Symptom Checklist (PSC-51) and good construct validity of the Symptom Check-List (SCL-90-R) somatization subscale. However, these three questionnaires were only studied in a small number of primary care studies.

CONCLUSION

Based on our findings, we recommend the use of either the PHQ-15 or 4DSQ somatization subscale for somatization in primary care. Other questionnaires, such as the BDS checklist, PSC-51 and the SCL-90-R somatization subscale show promising results but have not been studied extensively in primary care.

Group supervision for healthcare professionals within primary care for patients with psychosomatic health problems: a pilot intervention study

BACKGROUND

In primary health care, efficacious treatment strategies are lacking for these patients, although the most prominent symptoms accounting for consultation in primary care often cannot be related to any biological causes.

AIM

The aim was to explore whether group supervision from a specific phenomenological theory of psychosomatics could provide healthcare professionals treating patients with psychosomatic health issues within primary care a deeper understanding of these conditions and stimulate profession-specific treatment strategies. Our research questions were as follows: (i) What is the healthcare professionals' understanding of psychosomatics before and after the intervention? (ii) What are the treatment strategies for this group of patients before and after the intervention?

METHODS

The study was an explorative qualitative intervention pilot study. The six participants from a primary healthcare setting in a medium-sized city in Sweden participated in the study. A supervision group was formed, based on a mix of professions, age, gender and years of clinical experience. Supervision consisted of one 75-minutes meeting every month during the course of 6 months. Participants were interviewed before and after the supervision intervention.

FINDINGS

The study showed two distinct categories emerged from the data. One category of healthcare professionals espoused a psycho-educative approach, while the other lacked a cohesive approach. The supervision improved the second category of healthcare professionals' understanding of psychosomatics. The psycho-educative group did not change their understanding of psychosomatics, although they felt strengthened in their approach by the supervision. Profession-specific strategies were not developed.

IMPLICATIONS

This pilot study indicates that a relatively short supervision intervention can aid clinicians in their clinical encounters with these patients; however, further research is necessary to ascertain the value of the specific phenomenologically based supervision intervention.

Somatoform disorders and medically unexplained symptoms in primary care

BACKGROUND

The literature contains variable figures on the prevalence of somatoform disorders and medically unexplained symptoms in primary care.

METHODS

The pertinent literature up to July 2014 was retrieved by a systematic search in the PubMed/MEDLINE, PsychInfo, Scopus, and Cochrane databases. The methodological quality and heterogeneity (I2) of the retrieved trials were analyzed. The prevalence rates of medically unexplained symptoms, somatoform disorders, and their subcategories were estimated, along with corresponding 95% confidence intervals (CI), with the aid of random-effects modeling.

RESULTS

From a total of 992 identified publications, 32 studies from 24 countries involving a total of 70 085 patients (age range, 15-95 years) were selected for further analysis. All had been carried out between 1990 and 2012. The primary studies were more heterogeneous overall; point prevalences for the strict diagnosis of a somatization disorder ranged from 0.8% (95% CI 0.3-1.4%, I2 = 86%) to 5.9% (95% CI 2.4-9.4%, I2 = 96%), with higher estimated prevalences in studies that applied less restrictive diagnostic criteria. At least one type of somatoform disorder was diagnosable by DSM-IV and/or ICD-10 criteria in a fraction of primary-care patients that ranged from 26.2% (95% CI 19.1-33.3%, I2 = 98%) to 34.8% (95% CI 26.6-44.6%; I2 = 92%). The percentage of patients complaining of at least one medically unexplained symptom ranged from 40.2% (95% CI 0.9-79.4%; I2 = 98%) to 49% (95% CI 18-79.8%, I2 = 98%). The quality of the studies, in general, was only moderate. No relationship was found between study quality and prevalence estimates.

CONCLUSION

The statistical heterogeneity of the included studies is very high. Somatoform disorders and medically unexplained symptoms are more common than generally assumed. The found prevalences highlight the importance of these conditions in primary care.

Does It Matter Who Provides Psychological Interventions for Medically Unexplained Symptoms? A Meta-Analysis

BACKGROUND

Patients with medically unexplained symptoms (MUS) are difficult to treat and cause high health-care costs. Psychological interventions might be a beneficial option for treating patients with MUS, but evidence is inconsistent. This meta-analysis compares the effectiveness of psychological interventions for MUS - delivered either by psychotherapists (PTs) or by general practitioners (GPs) - with that of usual care.

METHOD

We conducted a systematic review and meta-analysis on randomised controlled trials of psychological interventions for MUS. Physical symptoms were the primary outcome, and physical functioning and psychological symptoms were the secondary outcomes. We pooled between-group effect sizes (ESs) after the treatment and at the follow-up in random-effects meta-regressions and stratified meta-analyses. We repeated these analyses with the intervention provider, intervention dose, MUS severity and methodological quality as predictors of relative intervention effects.

RESULTS

A total of 3,225 patients in 20 studies were analysed. After the treatment, small and significant ESs were found for all 3 outcome domains (ES range: 0.13-0.19, all p < 0.05). Psychological interventions were more beneficial for physical symptoms when delivered by PTs than by GPs (p = 0.02). There was no difference between PTs and GPs in terms of physical functioning and psychological symptoms.

CONCLUSION

Psychological interventions are effective for patients with MUS, but the effects are small and most likely of short duration. Interventions that are delivered by PTs appear to have larger effects on unexplained physical symptoms than those delivered by GPs. Whether this superiority is due to a larger number of sessions of PT interventions remains unclear from our findings.

A new questionnaire to identify bodily distress in primary care: The 'BDS checklist'

BACKGROUND

Functional symptoms and disorders are common in primary care. Bodily distress syndrome (BDS) is a newly proposed clinical diagnosis for functional disorders. The BDS diagnosis is based on empirical research, and the symptoms stated in the BDS criteria have been translated into a self-report questionnaire called the BDS checklist. The aim of the present study was to investigate the psychometric properties of the checklist and to test the construct of BDS.

METHOD

The 30-item BDS checklist was completed by 2480 adult primary care patients in a cross-sectional study on contact and disease patterns in Danish general practice. We performed (internal) validation analyses of the collected checklist data. We also performed factor and latent class analyses to identify both BDS symptom groups and BDS patient groups.

RESULTS

Internal validation analyses revealed acceptable and usable psychometric properties of the BDS checklist. The factor analyses identified the four distinct determining factors for BDS: cardiopulmonary, gastrointestinal, musculoskeletal and general symptoms. Results from factor and multi-trait analyses suggested a shortening of the BDS checklist (from 30 to 25 items). The latent class analyses resulted in three severity levels (no, moderate and severe BDS); the best fit index was found for a threshold of ≥4 symptoms in a symptom group.

CONCLUSION

The results provide empirical support for the previously described construct of BDS with four symptom groups and three patient groups. The BDS checklist is a self-report instrument that may be used for case finding in both clinical practice and in research.

Medically unexplained and explained physical symptoms in the general population: association with prevalent and incident mental disorders

Background

Clinical studies have shown that Medically Unexplained Symptoms (MUS) are related to common mental disorders. It is unknown how often common mental disorders occur in subjects who have explained physical symptoms (PHY), MUS or both, in the general population, what the incidence rates are, and whether there is a difference between PHY and MUS in this respect.

Aim

To study the prevalence and incidence rates of mood, anxiety and substance use disorders in groups with PHY, MUS and combined MUS and PHY compared to a no-symptoms reference group in the general population.

Method

Data were derived from the Netherlands Mental Health Survey and Incidence Study-2 (NEMESIS-2), a nationally representative face-to-face survey of the general population aged 18-64 years. We selected subjects with explained physical symptoms only (n=1952), with MUS only (n=177), with both MUS and PHY (n=209), and a reference group with no physical symptoms (n=4168). The assessment of common mental disorders was through the Composite International Diagnostic Interview 3.0. Multivariate logistic regression analyses were used to examine the association between group membership and the prevalence and first-incidence rates of comorbid mental disorders, adjusted for socio-demographic characteristics.

Results

MUS were associated with the highest prevalence rates of mood and anxiety disorders, and combined MUS and PHY with the highest prevalence rates of substance disorder. Combined MUS and PHY were associated with a higher incidence rate of mood disorder only (OR 2.9 (95%CI:1.27,6.74)).

Conclusion

In the general population, PHY, MUS and the combination of both are related to mood and anxiety disorder, but odds are highest for combined MUS and PHY in relation to substance use disorder. Combined MUS and PHY are related to a greater incidence of mood disorder. These findings warrant further research into possibilities to improve recognition and early intervention in subjects with combined MUS and PHY.

Effective group training for patients with unexplained physical symptoms: a randomized controlled trial with a non-randomized one-year follow-up

BACKGROUND

Although cognitive-behavioral therapy for Unexplained Physical Symptoms (UPS) is effective in secondary care, studies done in primary care produced implementation problems and conflicting results. We evaluated the effectiveness of a cognitive-behavioral group training tailored to primary care patients and provided by a secondary community mental-health service reaching out into primary care.

METHODOLOGY/PRINCIPAL FINDINGS

The effectiveness of this training was explored in a randomized controlled trial. In this trial, 162 patients with UPS classified as undifferentiated somatoform disorder or as chronic pain disorder were randomized either to the training or a waiting list. Both lasted 13 weeks. The preservation of the training's effect was analyzed in non-randomized follow-ups, for which the waiting group started the training after the waiting period. All patients attended the training were followed-up after three months and again after one year. The primary outcomes were the physical and the mental summary scales of the SF-36. Secondary outcomes were the other SF-36-scales and the SCL-90-R. The courses of the training's effects in the randomized controlled trial and the follow-ups were analyzed with linear mixed modeling. In the randomized controlled trial, the training had a significantly positive effect on the quality of life in the physical domain (Cohen's d = 0.38;p = .002), but this overall effect was not found in the mental domain. Regarding the secondary outcomes, the training resulted in reporting an improved physical (Cohen's d = 0.43;p = 0.01), emotional (Cohen's d = 0.44;p = 0.01), and social (Cohen's d = 0.36;p = 0.01) functioning, less pain and better functioning despite pain (Cohen's d = 0.51;p = <0.001), less physical symptoms (Cohen's d = -.23;p = 0.05) and less sleep difficulties (Cohen's d = -0.25;p = 0.04) than time in the waiting group. During the non-randomized follow-ups, there were no relapses.

CONCLUSIONS/SIGNIFICANCE

The cognitive-behavioral group training tailored for UPS in primary care and provided by an outreaching secondary mental-health service appears to be effective and to broaden the accessibility of treatment for UPS.

TRIAL REGISTRATION

TrialRegister.nl NTR1609

Medically unexplained symptoms--a perspective from general practitioners in the developing world

OBJECTIVES

In this study, we explored the attitudes toward Medically Unexplained Symptoms (MUS) of 500 general practitioners (GPs) in Karachi, Pakistan. Using a questionnaire previously developed by Reid et al. (2001), we aimed to investigate whether GPs' attitudes toward medically unexplained symptoms are similar to those of GPs in the developed world.

METHODS

Five hundred GPs on the database of primary care centers at the Pakistan Institute of Learning and Living in Karachi were all sent a covering letter explaining the purpose of the survey with a case vignette, a questionnaire, and a stamped addressed envelope. One month later, non-respondents received a telephone call from an investigator to remind them of the study.

RESULTS

Of the 429 respondents, 68.5% (294) were male and 31.5% (135) female. Although 80.2% of respondents felt that the main role of GPs was to provide support and reassurance, 76.9% of respondents also agreed that GPs had a role in referring patients with MUS for further investigations to identify a cause. Two hundred and four (47.55%) respondents agreed that somatization was useful concept, only 146 (34.03%) felt that there was effective treatment for it.

CONCLUSION

For the most part, Pakistani GPs' attitudes toward MUS are not very different to those of their counterparts in the West. Both agree that the GP has an important role in providing reassurance and counseling. However, our survey also shows that Pakistani GPs are less likely to place emphasis on an underlying psychiatric diagnosis and tend to focus on looking for an underlying physical cause.

Classification characteristics of the Patient Health Questionnaire-15 for screening somatoform disorders in a primary care setting

BACKGROUND

This study examines how effectively the Patient Health Questionnaire-15 (PHQ-15), a self-administered screening instrument, recognizes somatoform symptoms and somatoform disorders in a German primary care setting.

METHODS

A selected sample of 308 patients (mean age 47.2 years, 71.4% women) from two regular primary care practices was screened with the PHQ-15 and additionally examined with structured interviews. Their primary care physicians rated symptoms reported in the interview as either "medically explained" or "medically unexplained."

RESULTS

Seventy-six percent of the symptoms were judged as medically unexplained. The PHQ-15 correlated significantly with the total number of symptoms as well as the number of somatoform symptoms (both r=0.63; P≤.001). A comparison between the most frequently reported symptoms in the interview and the 15 items of the PHQ-15 revealed that even though the PHQ-15 does not differentiate between medically explained and medically unexplained symptoms, it does catch many somatoform symptoms. When used to predict the diagnosis of a somatoform disorder, a cutoff of 10 points in the PHQ-15 was identified as optimal, resulting in a sensitivity of 80.2% and specificity of 58.5%. However, the cutoff has to be adjusted according to specific research or clinical purposes.

CONCLUSION

Several previous results could be confirmed, and under consideration of some limitations, the PHQ-15 seems to be a valuable tool for identifying somatoform symptoms and disorders in primary care.

[Medically unexplained and somatoform complaints and disorders in the elderly: a systematic review of the literature]

OBJECTIVE

To provide a systematic overview of the research concerning the frequency of medically unexplained, somatoform complaints and disorders in the elderly, their risk factors, comorbidity, course, management in primary and secondary care, and psychotherapy.

METHOD

We evaluated 248 clinical and randomized trials, reviews, meta-analyses and practice guidelines for adult samples identified from "PubMed" and "PsycInfo" using the search terms "somatoform" OR "medically unexplained" OR "somatization" OR "somatisation" in combination with other terms for their relevance for the elderly. Other relevant trials were identified from the references from these publications.

RESULTS

Medically unexplained, somatoform complaints and disorders occur in older persons and are more frequent in elderly women than in elderly men. Although many studies found no increased frequency of somatoform complaints in the elderly, based on present research we cannot draw final conclusions concerning the frequency of somatoform disorders and complaints in the elderly, and we cannot give evidence based recommendations for their treatment in primary and secondary care and psychotherapy.

DISCUSSION

This situation results from the special problems encountered in the diagnosis of somatoform complaints and disorders in the elderly, from problems in conceptualisation also found in younger adults, and from the lack of research concerning treatment focussed solely on the old and very old.

Course and prediction of somatoform disorder and medically unexplained symptoms in primary care

THEORY/OBJECTIVE: Somatoform disorder (SFD) is associated with considerable psychosocial impairment. However, only a few studies have dealt with the course of this clinical subgroup. Therefore, the objective was to identify predictors for the various courses of SFD and medically unexplained symptoms (MUS).

METHOD

We screened 620 consecutive patients in primary care using the Patient Health Questionnaire (PHQ-15). Afterwards, 308 patients were studied in more detail using a diagnostic interview and a set of questionnaires. One year later, we were able to interview 277 participants a second time.

RESULT

After 1 year, 48.8% of the respondents had a remitted SFD. The following variables proved to be significant predictors of MUS: current depressive episode, negative life events, number of MUS at baseline, attributional style, autonomic sensations and catastrophizing cognitions. The course of SFD could be predicted through current depressive or anxiety disorder, negative life events, functional disability and attributional style.

CONCLUSION

Somatoform disorder has a favorable course. The predictors of the courses of SFD and MUS we found can be integrated into previous explanatory models. The coping with MUS or SFD can be seen as a mediating factor.

[Determinants of quality of life in patients with somatoform disorders with pain as main symptom - the case for differentiating subgroups]

OBJECTIVES

What impact do the degree of somatization and the presence of a comorbid psychological disorder have on health-related quality of life in patients with pain-dominated somatoform disorders?

METHODS

282 consecutive patients (57.6 %) from a total population of N=490 patients fulfilling the criteria of somatoform pain disorders were included in the study following a thorough interdisciplinary diagnostic process at a German university hospital. Structured interviews (SKIDI and SKID-II) to assess comorbid psychological disorders as well as a structured biographical interview to assess chronification factors were conducted. We employed the Screening for Somatoform Disorders form (SOMS) to discover the extent and distribution of somatic symptoms and the SF-36 to determine the health-related quality of life.

RESULTS

The patients exhibited a multiplicity of further somatic complaints apart from pain. 69 % had a comorbid psychological disorder. The health-related physical and psychological quality of life was clearly impaired in patients with "small", "substantial" and "pronounced" somatization. Regression analysis explained 48 % of the variance of the body-related and 35 % of the variance of the psychological quality of life: Besides the extent of somatization, older age, duration of pain-associated hospitalizations and the subjective amount of occupational impairment proved to be important. With regard to the psychological (but not the somatic) health-related quality of life, the presence of a current comorbid psychological disorder was also relevant.

CONCLUSION

Patients with pain-dominated somatoform disorders are substantially impaired in their quality of life. Because 31 % of the patients with such disorders have no additional comorbid psychic disorder and the existence of a comorbid psychic disorder impacts only the psychological domain of their health-related quality of life, the results appear to strongly support maintaining the diagnostic category of somatoform disorders in ICD-11 and DSM-V. They also support the grading of the severity of the somatization similar to the grading of depressive disorders.

Prevalence, impact, and prognosis of multisomatoform disorder in primary care: a 5-year follow-up study

BACKGROUND

To determine the prevalence, impact, and prognosis of multisomatoform disorder (MSD) over a 5-year period in a primary care population. Although somatization is prevalent in primary care, patients rarely meet Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) criteria for somatization disorder. MSD, defined as > or = 3 bothersome, medically unexplained somatic symptoms, has been proposed as a more inclusive disorder.

METHODS

A total of 500 adults presenting to a primary care clinic with a physical symptom were screened with the Primary Care Evaluation of Mental Disorders. Symptom count was assessed with the Patient Health Questionnaire 15-item somatic symptom scale. Additional baseline measures included functional status and symptom characteristics. Follow-up surveys at 2 weeks, 3 months, and 5 years assessed functioning, symptom outcome, psychiatric diagnoses, and patient satisfaction. Physician surveys assessed encounter difficulty. Utilization was obtained from our health database.

RESULTS

MSD had an 8% prevalence at both baseline (n = 38/500) and at 5 years (n = 33/387). MSD persisted in 21% of those with MSD at baseline, and developed in 7% of those without MSD at baseline. MSD at baseline was a predictor of MSD at 5 years (relative risk (RR) = 2.7, 1.5-5.1). MSD patients were more likely to have comorbid mental disorders (RR = 1.5, 1.1-2.3) and be rated "difficult" by their clinicians (p = .02). They also reported worse functional status at all time points assessed (p < .001 for all), were less likely to experience symptom improvement, and had higher utilization rates (34.1 versus 23.1 visits; p = .006).

CONCLUSIONS

MSD identifies a group of patients who are less likely to experience symptom improvement and have significant functional impairment and higher utilization rates.

Fluoxetine versus sertraline in the treatment of patients with undifferentiated somatoform disorder: a randomized, open-label, 12-week, parallel-group trial

The present study was conducted to compare the effectiveness and tolerability of fluoxetine and sertraline in the treatment of undifferentiated somatoform disorder (USD), using the Patient Health Questionnaire (PHQ-15), which was specifically designed for assessing the severity of somatic symptoms. A randomized, 12-week, open-label trial of fluoxetine (10-60 mg/d) and sertraline (25-350 mg/d) in patients with USD was conducted. Six visits, at baseline and weeks 1, 2, 4, 8, and 12, were scheduled. Assessments for effectiveness and tolerability were conducted at each visit. The primary effectiveness measure was the mean change in PHQ-15 total score, from baseline to the end of treatment. Secondary effectiveness measures were the mean changes in total scores on the Beck Depression Inventory (BDI) and the 12-item General Health Questionnaire (GHQ-12), from baseline to the end of treatment. A total of 45 subjects were enrolled; of them, 28 were randomly assigned to receive fluoxetine and 17 to receive sertraline. The total score on the PHQ-15 from baseline to the end of treatment significantly decreased in the fluoxetine (-10.7, p<0.0001) and sertraline (-10.3, p<0.0001) treatment groups, with no between-group difference (F=0.0701, p=0.7924). Overall, both treatments were well tolerated and no serious adverse event was reported. This study suggests that both agents may have a potential role in the treatment of USD. A double-blind, placebo-controlled trial and/or head-to-head comparison study with larger samples are required to draw more definite conclusions.

Stability of somatoform symptoms--implications for classification

OBJECTIVE

To investigate the stability of somatoform symptoms/disorders.

METHODS

A literature search was done to select studies reporting data on stability of medically unexplained physical symptoms.

RESULTS

Whereas individual symptoms vary over time, grouping symptoms into syndromes seems to create stable features. There are substantial problems with the use of lifetime diagnosis, favoring classification approaches that require only present state symptoms. Further, doctors' ratings that symptoms are "medically unexplained" is highly problematic and reduces interrater reliability. Misdiagnoses and overlooking of organic conditions are in the same range as for other psychiatric (and many organic) disorders; therefore, this does not seem to reduce the stability of the diagnoses of somatoform disorders.

CONCLUSIONS

These results indicate how the classification of somatoform disorders can be improved. Some new diagnostic criteria are suggested that could be considered in the revision of Diagnostic and Statistical Manual of Mental Disorders-V (DSM-V).

A randomized controlled trial of brief training in the assessment and treatment of somatization in primary care: effects on patient outcome

OBJECTIVE

Our aim was to evaluate the effect of an educational program designed to improve care for somatizing patients in primary care.

METHOD

Evaluation was performed during routine clinical care in a cluster randomized controlled trial. Patients were included consecutively, and those with a high score on rating scales for somatization were selected for follow-up (n=911). Follow-up was conducted 3 months (response rate=0.74) and 12 months (response rate=0.69) after inclusion using questionnaires measuring quality of life (Medical Outcomes Study 36-Item Short Form), disability days (WHO's Disability Assessment Schedule), somatization (Whiteley-7 and Symptom Checklist Somatic Symptom Scale) and patient satisfaction (European Project on Patient Evaluation of General Practice Care). We analyzed differences from baseline to follow-up and compared these for intervention and control groups.

RESULTS

Self-reported health improved in both intervention and control groups during follow-up for patients with a high score for somatization, but changes were small. We could not demonstrate any difference between the control group and the intervention group with regard to our primary outcome 'physical functioning.' Patients in the intervention group tended to be more satisfied at 12-month follow-up than those in the control group, but this difference fell short of statistical significance.

CONCLUSION

Training of primary care physicians showed no statistically significant effect on clinical outcome and showed nonsignificant improvement in patient satisfaction with care for patients with a high score for somatization.