Psychological Treatment of Recurrent Headache in Children and Adolescents - A Meta-Analysis

Psychologically based interventions such as relaxation training, biofeedback and cognitive-behavioural therapy are increasingly discussed as options for the treatment of migraine and tension-type headache in children and adolescents. In order to determine the state of evidence regarding the efficacy of these treatments, a meta-analysis of randomized controlled studies was conducted. In a comprehensive literature search including data from 1966 to 2004, 23 studies were found meeting the inclusion criteria. Due to the application of the random effects model, generalization of the results is possible. Specific statistical procedures were used to account for a possible publication bias. Significantly more patients improved to a clinically relevant extent (headache reduction ≥50%) in treatment conditions compared with waiting list conditions (high effect sizes). Long-term stability was also confirmed. The analysed treatments lead to improvement (up to 1 year) in headache status in children and adolescents with primary headache. However, more well-designed studies are needed to support and consolidate the conclusions of this meta-analysis and to compare the effects of psychological treatment with those of prophylactic medical interventions (in migraine), to examine potential differences between treatments, to identify moderators of efficacy and to determine effects of treatment on other health- related variables such as quality of life.

[On the interdisciplinary S3 guidelines for the treatment of chronic idiopathic tinnitus]

INTRODUCTION

Tinnitus is a frequent symptom, which, particularly in combination with comorbidities, can result in a severe disease-related burden. Chronic idiopathic tinnitus (CIT) is the most frequent type of tinnitus. A considerable number of treatment strategies are used to treat CIT-for many of which there is no evidence of efficacy. In order to enable scientific evidence-based treatment of CIT, German interdisciplinary S3 guidelines have recently been constructed for the first time. Here we present a short form of these S3 guidelines.

MATERIALS AND METHODS

The guidelines were constructed based on a meta-analysis of the treatment of chronic tinnitus performed by the authors. Additionally, a systematic literature search was performed in the PubMed and Cochrane Library databases. Furthermore, a systematic search for international guidelines was performed in Google, as well as in the Guidelines International Network and National Guideline Clearinghouse (USA) database. Evidence was classified according to the Oxford Centre for Evidence-Based Medicine system.

RESULTS

According to the guidelines, alongside counselling, manualized structured tinnitus-specific cognitive behavioral therapy (tCBT) with a validated treatment manual is available as evidence-based therapy. In addition, the guidelines recommend concurrent treatment of comorbidities, including drug-based treatment, where appropriate. Particularly important is treatment of anxiety and depression. Where a psychic or psychiatric comorbidity is suspected, further diagnosis and treatment should be performed by an appropriately qualified specialist (psychiatrist, neurologist, psychosomatic medicine consultant) or psychological psychotherapist. In cases accompanied by deafness or hearing loss bordering on deafness, cochlear implants may be indicated.

CONCLUSION

No recommendations can be made for drug-based treatment of CIT, audiotherapy, transcranial magnetic or electrical stimulation, specific forms of acoustic stimulation or music therapy; or such recommendations must remain open due to the lack of available evidence. Polypragmatic tinnitus treatment with therapeutic strategies for which there is no evidence of efficacy from controlled studies is to be refused.

[Headache in children and adolescents. Epidemiology, biopsychosocial correlates, and psychological treatment approaches]

EPIDEMIOLOGY

An abundance of studies have consistently shown that headache is the most prevalent pain in children and adolescents. Weekly headache is experienced by more than 10 % and is distinctly more frequent in girls. The number of headache-affected youths with high disability is lower than expected (~ 4 %).

THE ASSOCIATION WITH BIOPSYCHOSOCIAL FACTORS

Headache is associated with pain in other body sites, thus multiple pain is experienced more often than isolated headache. Various somatic symptoms and even chronic diseases are also correlated with headache. Headache in parents carries a high risk of also occurring in their children. Various other psychosocial factors such as dysfunctional psychological traits are closely linked with headache, the most prominent being internalizing symptoms. However, externalizing symptoms also correlate with headache. Pain catastrophizing, as well as somatosensory amplification and anxiety sensitivity, have been shown to characterize individuals with headache. Features of the social environment, such as life events, school, as well as family stressors and socioeconomic parameters, are among the risk factors.

PSYCHOLOGICAL INTERVENTIONS

Psychological interventions such as biofeedback, relaxation, and cognitive-behavioral training have proved their efficacy in headache treatment according to several meta-analyses. The latter has also been conducted in group settings and more recently in self-management focused trainings using electronic media. They mainly aim at the prevention of further headache episodes. The goal of this training is the strengthening of self-efficacy beliefs and active coping strategies. It is proposed that these competencies could contribute to the successful long-term prevention of an adverse course of headache into adulthood.

[Pain concept modification in chronic pain patients by an educational video.]

The aim of the study was to evaluate an educational video designed to modify the pain concept of chronic pain patients. It is commonly described that chronic pain patients foster an illness model which is dominated by purely medical assumptions about causes of pain and its modulation and treatment. Furthermore the mostly unrealistic hope for total pain relief which is expected from the pain expert guides the patients' seek for help. These concepts are most probable very dysfunctional in a multidisciplinary pain management setting, where psychological interventions are important elements of the treatment. Therefore the video was designed to initiate changes in the patient's attitude towards a multimodal model of pain. The educational pain video was evaluated in an experimental design using a control group to whom a different video on a health related topic (nutrition) was presented. The Ss participating in the study were 47 chronic pain patients of a pain ambulance and 42 patients of a pain clinic (inpatient setting). The results showed that after viewing the pain video the groups differed significantly in their pain concept as predicted. The use of an educational video, like the one evaluated, seems useful to initiate first steps in illness concept modification by expanding and enriching the patients attitude by assumptions about the influence of psychological factors on pain maintenance and management and shaping realistic attitudes towards treatment.

Clinical features of chronic pain with neuropathic characteristics: a symptom-based assessment using the pain DETECT questionnaire

BACKGROUND

In general, chronic pain is categorized into two mechanism-based groups: nociceptive and neuropathic pain. This dichotomous approach is questioned and a dimensional perspective is suggested. The present study investigated neuropathic characteristics in different syndromes of chronic pain. We also examined the association of neuropathic characteristics with various pain related and psychological variables.

METHODS

From April 2010 to January 2012, 400 patients suffering from a chronic pain condition enrolled for multidisciplinary pain treatment were considered for inclusion in the study. Criteria for inclusion were age over 18 years and having chronic pain according to ICD-10 (F45.41) criteria. The pain DETECT questionnaire was used to assess neuropathic characteristics of pain.

RESULTS

Thirty-seven percent of patients with different pain diagnoses demonstrated distinct neuropathic characteristics. The diagnostic groups for neuropathic pain, musculoskeletal pain and post traumatic or surgical pain showed the most neuropathic features. The level of depression, pain chronicity and intensity, disability and length of hospital stay were significantly higher in patients suffering from neuropathic symptoms. A high level of depression and pain chronicity as well as high intensity of pain explained most of the variance in the neuropathic scores. Disability and length of hospital stay significantly predicted neuropathic characteristics only when examined separately, but not if included in a common regression model.

CONCLUSIONS

Any type of chronic pain may have more or less neuropathic characteristics. The pain-related parameters of high intensity and chronicity as well as negative affectivity and functional disability strongly correlate with neuropathic characteristics of pain.

[Quality assurance in therapy of chronic pain. Results obtained by a taskforce of the German Section of the Association for the Study of Pain on psychological assessment of chronic pain. V. Instruments for the assessment of pain-related cognitions and coping with pain.]

The present paper is one of a series of publications, reviewing German instruments for psychological assessment of pain. Their main focus is on the results of a task force on quality testing for each subject. This paper describes and comments on methods regarding self-reporting of pain cognitions and both cognitive and behavioral strategies for coping with pain. Concerning pain cognitions one focus is on patients' attributions of causes of pain and the modes of controlling pain (subjective pain model). The other focus is on instruments recording "pain beliefs" in the sense of dysfunctional congitions associated with the experience of pain. Each instrument was examined with reference to approved psychometric criteria, empirical foundation and clinical relevance. It was noted that several instruments are deficient in their psychometric criteria and their empirical foundations. We used these data as a basis to elaborate a specific and differential recommendation. A similar procedure was followed with instruments for the assessment of pain-related coping strategies. According to our research there are two subgroups of coping instruments, one more specifically for cognitive coping with pain, and the other combined with behavioral coping strategies. Once again, we elaborated a specific and differential recommendation, giving priority to instruments taking account of both cognitive and behavioral dimensions of coping with pain.

Self-report of headache in children and adolescents in Germany: possibilities and confines of questionnaire data for headache classification

The aim of this study was to estimate prevalence rates of different types of primary headache in 9- to 14-year-old children in a population-based sample. Case definition was based on International Classification of Headache Disorders (ICHD) criteria. The possibility of implementing these criteria within a questionnaire format, which has been regarded as problematic by some authors, was the main focus of the study. A questionnaire was sent to children and adolescents in 6400 randomly drawn families in southern Lower Saxony. Valid questionnaires were returned by 61.1% of the sample. The overall prevalence rate for tension-type headache (TTH) (criteria C and D) was 17.6% and for migraine (criteria B, C and D) 13.1%. Despite the use of abridged criteria for headache classification, 35.5% of all children reported headache that could not be classified using the ICHD criteria. The response behaviour of these children indicated that they had difficulties reporting symptoms that were defining for migraine or TTH. The classifiability of headache does not seem to be dependent on age or frequency of headache, but rather on the number of 'I don't know' answers given regarding headache characteristics. It is likely that studies reporting prevalence rates that are limited to migraine and or TTH diagnoses underestimate the true prevalence of headache in children and adolescents.

One-year course of paediatric headache in children and adolescents aged 8-15 years

The aims of the present study were the assessment of headache (HA) prevalence in German children and adolescents in the second year of a 4-year longitudinal study and the analysis of headache status change from year 1 to year 2. The original sample consisted of 8800 households with a child aged 7-14 years. A total of 4159 households responded in both year 1 and year 2, yielding 3984 valid parent questionnaires. Data regarding various aspects of the child's HA history and general health were gathered via mailed questionnaires from the parents. Of the households returning valid parent questionnaires at survey 2, 48.9% reported their child to have experienced headaches during the previous 6 months (53% at survey 1). Weekly HA was reported for 6.5% of the children, monthly or less frequent HA for 16.5% and 25.9%, respectively. With regard to headache diagnosis, 55.0% of the children and adolescents with HA experienced tension-type HA (TTH) and 11.3% migraine with or without aura (M). For more than half of the children and adolescents with HA (57.0%) the frequency of head pain remained stable over the period of 1 year (i.e. same frequency category in years 1 and 2). Improved and worsened HA status regarding frequency of occurrence was found in 22.3% and 20.7% of the subjects, respectively. Thus, there was no definite trend towards an increase of HA episodes over the course of 1 year regarding the individual child or adolescent. The most stable type of HA was TTH.

Headache in German children and adolescents: a population-based epidemiological study

The aim of the present study was to assess the distribution and characteristics of headache in children aged 7-14 years in Lower Saxony (Germany). For the survey, 8800 households with children were randomly drawn from community registers. Parents received comprehensive questionnaires regarding various aspects of their child's headache history and general health by mail. The response rate was 63.5%. The 6-month prevalence of paediatric headache was 53.2% and increased with age (39% at 7 years to 63% at age 14). Overall, recurrent headache (> or =1/week) was experienced by 6.5% of the total sample and was significantly more common among older girls (> or =11 years) than their male counterparts. Boys and girls did not differ markedly from one another regarding headache occurrence and frequency until the age of 11. Mean age of headache onset was 7.5 years, with onset occurring at a significantly younger age among boys than among girls. In accordance with International Classification of Headache Disorders-II criteria, migraine was diagnosed in 7.5% and tension-type headache in 18.5% of the cases, hence a large proportion of the children had unclassifiable headache. Of the headache disorders, migraine was rated the most disabling, with the highest average intensity, highest frequency, duration of headache often exceeding 2 h and more frequent use of medication. In general, aura symptoms were rare except for visual disturbances (17%). Paediatric headache was strongly associated with other health problems, including other pain symptoms. Paediatric headache was also associated with a history of parental headache.

The management of chronic tinnitus: comparison of an outpatient cognitive-behavioral group training to minimal-contact interventions

OBJECTIVE

Using a randomized group design, the efficacy of an outpatient cognitive-behavioral Tinnitus Coping Training (TCT) was compared to two minimal-contact (MC) interventions.

METHODS

TCT was conducted in a group format with 11 sessions (total n=43). One MC [MC-E (education), n=16] consisted of two group sessions in which education on tinnitus was presented and self-help strategies were introduced. The second MC [MC-R (relaxation), n=16] comprised four sessions. Besides education, music-supported relaxation was suggested as self-help strategy and audiotapes with relaxing music were provided. Furthermore, a waiting-list control group was installed (WC, n=20). Data were assessed at baseline (pretherapy) and at posttherapy period. Only TCT was additionally evaluated at a 6-month and a 12-month follow-up. Several outcome variables (e.g., awareness of tinnitus) were recorded in a tinnitus diary. Tinnitus coping and disability due to tinnitus were assessed by questionnaires. Subjective ratings of improvement were also requested from the patients. Furthermore, inventories of psychopathology were given to the patients.

RESULTS

Findings reveal highly significant improvements in TCT in comparison to the control group (WC). MC interventions do not differ significantly from each other, but are superior to WC in a few domains of outcome. Outcome in TCT is somewhat superior to combined MC interventions in two domains of data, but not regarding disability reduction. Effect sizes, nevertheless, indicate distinct differences in degree of improvement, with TCT achieving the best results.

CONCLUSIONS

A sequential scheme for the treatment of chronic tinnitus is discussed on the basis of cost-effectiveness considerations.

Fear-Avoidance Behavior and Anticipation of Pain in Patients With Chronic Low Back Pain: A Randomized Controlled Study

OBJECTIVE AND DESIGN

In a randomized controlled study, we investigated whether pain anticipation and fear-avoidance beliefs will lead to behavioral avoidance.

PATIENTS

Fifty patients with chronic low back pain (CLBP) performed a simple leg-flexion task. Before the test, members of a control group were informed that the movement would not result in any increase of pain, whereas experimental group participants were told that a slight increase of pain could occur.

OUTCOME MEASURES

All patients completed the Fear-Avoidance-Beliefs Questionnaire (FABQ) and the Pain Disability Index (PDI). As dependent variables, different behavioral performance parameters were registered by a computerized protocol: number of flexion movements, mean range of motion, and mean work ratio. Furthermore, patients were asked about their pain intensity as well as their fear (at the moment) and finally were asked to judge the unpleasantness of the experiment (using visual analogue scales for each of the three variables).

RESULTS

Inducing pain anticipation (by instruction) led to significantly lower levels of behavioral performance as well as increased pain intensity and fear during the test. Behavioral performance was significantly correlated with fear-avoidance beliefs.

CONCLUSIONS

Results confirm that pain anticipation and fear-avoidance beliefs significantly influence the behavior of patients with low back pain in that they motivate avoidance behavior. Therapists must be aware of the powerful effects of cognitive processes, which can give rise to fear of pain and, consequently, avoidance behavior.

Validation of the German version of the Fear-Avoidance Beliefs Questionnaire (FABQ)

Fearful avoidance of physical activities is a major factor in low back pain (LBP) and disability. In 1993 Waddell et al. developed the Fear-Avoidance Beliefs Questionnaire (FABQ) focusing on patients' beliefs about how physical activity and work affect LBP. The focus of our study was to analyse and validate the German version of the FABQ. Three-hundred and two consecutive LBP outpatients participating on a functional restoration programme filled in the FABQ. Factor analysis yielded three factors which accounted for nearly 65% of the total variance of the questionnaire. Whereas the factor 'physical activity' (8.9% of the variance) remained the same as in the English version, the second factor of the original version split into two: one related to, 'work as cause of pain' (43.4% of the variance) and the other to patients' assumptions of their probable return to work (11.8% of the variance). Both work-related subscales showed a good internal consistency (alpha = 0.89, resp. alpha = 0.94), whereas the consistency of the subscale 3 'physical activity' was only modest (alpha = 0.64). Test-re-test reliability score was fair to good for the whole scale (r = 0.87;n = 30). Regression analysis demonstrated that fear-avoidance beliefs account for the highest proportion of variance (35%) regarding disability in activities of daily living and work loss. Patients out of work demonstrated more fear-avoidance beliefs in comparison to those who were still working. It can be concluded that the German version of the FAQB is a reliable and valid instrument, but it shows a different factor structure from the original English version. The FABQ has been proven to identify patients with maladaptive beliefs which have to be focused on in proper treatment.

Stress and the onset of sudden hearing loss and tinnitus

Forty hospitalized patients with sudden hearing loss and tinnitus were compared to a control group (N = 28) of inpatients of an ear-nose-throat ward. They were similar in various background variables except for the kind of disorder itself. The main objective of our study was to test the hypothesis of stress as a predisposing risk factor in the development of sudden hearing loss and tinnitus. Thus, differences in life events and daily "hassles" were expected between groups, as were differences in coping styles, habitual worrying, and social support. The hypothesis of more frequent and more stressful life events and daily hassles was supported empirically. The dominant role of daily hassles, especially their stressfulness as a risk factor, was shown clearly. Those in the experimental group also reported more coping endeavors and more worrying. Social support had no discriminating function. The prospective part of the study aimed at the prediction of chronicity of sudden hearing loss and tinnitus (3 months after onset) by sociodemographic, psychological, and disease-associated variables. The strongest predictor of chronicity was the degree of well-being at the time of first assessment (soon after disease onset). Coping and a fatalistic locus of control also had some predictive power. Methodological limitations of the study are discussed.

Comparison of biofeedback and relaxation in the treatment of pediatric headache and the influence of parent involvement on outcome

The relative efficacy of EMG-frontalis feedback and progressive relaxation was examined in children with tension-type or combined headaches (8-14 yrs. old). Furthermore, the influence of parent involvement, in the form of a three-session educational approach, on training outcome was systematically explored (2 x 2 factor design). Fifty children took part in the study, 40 were randomly assigned to the four different treatment conditions, 10 children participated in the self-monitoring control group. The training comprised 6 sessions of 1 hr each in the relaxation treatment and 12 sessions of 1/2 hr duration in the biofeedback group. Headache diaries were kept by children and parents for 4-week period prior to therapy, and for a similar length of time at post-treatment and follow-up (6 months). Multivariate analyses of variance on the headache diary data yield no significant main or interaction effects of treatment format or of parent involvement, but only a main effect of period, indicating a general efficacy of the four treatment conditions. At follow-up the reduction of headache activity is even more prominent. A different evaluative approach points to the superiority of biofeedback revealing a mean effect size for biofeedback training that reflects a good to excellent improvement rate. Correlations between headache data from children and parents are high.

[Quality control in the therapy of chronic pain. Results obtained by a task force of the German Section of the International Association for the Study of Pain on psychological assessment of chronic pain. XI. Assessment and multiaxial classification of pain]

This paper reviews instruments in German language for the psychological assessment and classification of pain. Usually chronic pain syndromes are classified within the International Classification of Diseases (ICD). Instead of the psychiatric chapter of the ICD, it is possible to use the Diagnostic and Statistical Manual of Mental Disorders (DSM). The proposed classification system of the International Association of the Study of Pain (IASP) is based on a multiaxial solution. The numerous ways to classify chronic pain include many problems and limits, especially in the case of an interdisciplinary assessment. They provide no specific system for classifying pain syndromes. They are impractical to handle and restrict classifying pain as either somatogenic or psychogenic. It is not possible to describe both sides in one diagnosis without loss of information. As a result of this situation, a task force of the German Chapter of the International Association for the Study of Pain developed a Multiaxial Classification of Pain (Multiaxiale Schmerzklassifikation; MASK) as an advanced system of pain assessment and an alternative to the common classification systems. MASK embraces a somatic (MASK-S) and a psychological (MASK-P) part. Both parts constitute an 'interdisciplinary diagnosis'. MASK-S enables classifying a pain syndrome using hierarchical levels, with progredient specific degrees of differentiation. In addition there are 6 axes to describe pain syndromes qualitatively and quantitatively (e.g. localization, quality). The psychosocial part (MASK-P) embraces 5 main levels (1. behavioral, 2. emotional, 3. cognitive, 4. stress-related, 5. habitual personal factors) and 2 additional levels (6. functional coherence, 7. ICD/DSM-diagnosis additional). The MASK-P part of the diagnosis is composed of graduation on these levels. Differential axis of the pain syndromes are described phenomenologically and specifically. MASK provides the possibility of establishing an integrative, interdisciplinary diagnosis.

Incorporation of cognitive-behavioral treatment into the medical care of chronic low back patients: a controlled randomized study in German pain treatment centers

Cognitive behavioral treatment has been incorporated into standard medical treatment procedures in German pain centers. Acceptance of the treatment by patients and outcome in terms of pain, coping, and disability was investigated. Components of the psychological treatment are education, relaxation and imagery, modifying thoughts and feelings, enhancement of pleasant activities, and training of good postural habits. The program was conducted in a group setting in accordance with a treatment manual and consists of 12 weekly 2.5-h sessions. A two-factor experiment with repeated measures on one factor was applied. Ninety-four consecutive patients with low-back pain were randomly assigned to an experimental group having a combined medical and cognitive-behavioral treatment, or to a control group with medical treatment only. Assessments were taken pre-treatment, post-treatment, and--in the treated group only--at a 6-months follow-up. At each assessment, patients kept a pain diary over a period of 4 weeks, and filled in self-report questionnaires. The sample consisted of 36 experimental and 40 control subjects at post-treatment. Experimental subjects reported less pain, better control over pain, more pleasurable activities and feelings, less avoidance and less catastrophizing. In addition, disability was reduced in terms of social roles, physical functions and mental performance. The results were maintained at follow-up. Patients who only received medical treatment showed little improvement. Data indicate that the program meets the needs of the patients and should be continued.

[Quality assurance in chronic pain therapy. Results obtained by a task force of the German Chapter of the International Association for the Study of Pain on psychological Assessment of chronic Pain. Psychological instruments for the assessment of pediatric pain]

The present paper is one in a series of publications reviewing German instruments for the psychological assessment of pain. Part X deals with pain measurement of acute and chronic pain in infants and children. German assessment instruments of pediatric pain together with frequently used instruments of American origin are examined and described. The survey contains self-report and behavioral pain measures. Multidimensional pain interviews for both children and parents, diaries and rating scales, as well as observation measures especially for infants, are examined. Since the selection of pain-assessment instruments is dependent on the age and cognitive level of the children, for each instrument a minimum age limit is given. In cases in which quantitative indices of reliability, validity and objectivity are still needed, the evaluation is based on qualitative quotations.

[Psychological stress on patients in tumor after-care after R0 resection of colorectal carcinomas]

In a prospective study 70 patients after curative resection for colorectal carcinoma were asked about the psychological strain in the follow-up program. Of these patients, 80.1% felt that they did the right thing and 70% were optimistic and confident regarding the follow-up examinations. Only 5 patients (7.1%) had no intention of keeping the follow-up appointment and 12 patients (17.1%) were thinking about recurrence. The patients were afraid of further examinations, and the majority (45 patients) hoped that further invasive examinations would not be necessary. Patients with a higher frequency of follow-up examinations did not report with more stress than patients fewer follow-up visits (P = 0.7 fisher exact). Older, single and female patients are special risk groups with a high level of psychological strain and should receive special attention within the follow-up (P < 0.08, fisher exact). In spite of the disappointing medical effectiveness of the regular follow-up program, psychological support in coping with cancer is the main result of regular follow-up visits to the hospital after curative resection of colorectal carcinoma and should be maintained.

Predicting subjective disability in chronic pain patients

Subjective disability is considered as the variable that reflects the impact of chronic pain on a patient's life. This study examines the questions of which syndrome or patient characteristics determine subjective disability and whether there are differences between samples of patients with chronic headaches and low back pain. Direct pain variables and depression, pain coping strategies, and pain-related self-statements (including catastrophizing) are introduced into multivariate regression analyses as potential predictors of disability using a sample of 151 pain patients. Disability is not predicted by pain severity in patients with headaches or back pain. Psychological variables, especially coping strategies, are far more influential. Coping explains more variance in disability in the headache sample than in the chronic law hack pain group, whereas depression is more relevant for the degree of disability in the back pain sample. In this study, we present a critical analysis of possible interpretations of our results. We point to an overlap of concepts underlying some of the variables used: this overlap also considerably invalidates conclusions drawn from a multitude of studies done in this field, including the one presented. We strongly argue for a conceptual clarification, and consequently for the revision of assessment instruments, before further empirical work in this area is done.

[Quality assurance in therapy of chronic pain. Results obtained by a task force of the German Section of the Association for the Study of Pain on psychological assessment of chronic pain. IX. Multidimensional instruments for the assessment of aspects relating to pain and recommendations on standard procedures for diagnosis]

Four multidimensional inventories used as instruments for the assessment of pain are examined: "Fragebogen zur Erfassung der Schmerzverarbeitung' [Questionnaire for Assessment of Level of Coping with Pain], "Kieler Schmerzverarbeitungs-Inventar' [Kiel Inventory of Coping with Pain], "Fragebogen zur Schmerzregulation' [Questionnaire on Pain Regulation], and the German version of the "Multidimensional Pain Inventory'. None of these questionnaires assesses all domains that are important in chronic pain. The recommended standardized assessment routine for pain centres includes the use of a diary, the rating of actual, average and maximum pain intensity, the application of the PDI, a measure of disability, and the FESV, which records cognitive processing and coping. As measures of general psychological dysfunction the ADS for the assessment of depression and the B-L, a symptom checklist, are suggested as instruments suitable for routine use in diagnosis and evaluation.

The management of chronic tinnitus--comparison of a cognitive-behavioural group training with yoga

Two non-medical treatment strategies for chronic idiopathic tinnitus were evaluated in a randomized control group design. A cognitive-behavioural tinnitus coping training (TCT) was developed and compared to yoga and a self-monitoring control condition. Forty-three chronic tinnitus patients, were assessed at baseline, directly after therapy, and at 3 months follow-up. For evaluation, differential psychoacoustic variables were registered, a tinnitus diary as well as the Tinnitus Questionnaire and different measures of general well-being were used. Statistical analyses showed effects favouring the TCT treatment in comparison to the control and yoga treatment. The TCT-treated patients reported more satisfaction with the training than the yoga group. Participants in the self-monitoring control group were treated either by TCT or yoga after a waiting period. The outcome in this group was even better than in the experimental groups while yoga again showed rather poor effects.

The physiological stress response and the role of cognitive coping in migraine patients and non-headache controls

Our study investigated physiological response specificity and cognitive coping in migrainous patients during an achievement task situation. Thirty-three migrainous subjects and thirty-two non-headache controls were subjected to 40 min of demanding cognitive tasks and 20 min of recovery during which cranial and peripheral vasomotor responses were registered as well as electrodermal and myographic activity. Subjects of both groups were randomly assigned to two experimental conditions, a so-called 'spontaneous processing condition' and the 'positive coping treatment'. In this treatment condition subjects received a short training in the conscious use of positive self-statements in stress situations. Though a specific pattern of cranial vasomotor responses in migraine subjects could be verified by group statistics, this pattern was only found in very few individuals. Reliable differences between groups could not be identified in other physiological variables either. The hypothesis that the predicted cranial vasomotor specificity in migraine subjects correlates with negative cognitive coping habits in migraine subjects best revealed in the 'spontaneous processing' condition, was not corroborated. The treatment variation regarding coping produced somewhat paradoxical effects, more relaxed and positive self-evaluation (subjective level) and more arousal (physiological level). Results are discussed for their impact on the psycho-biological model of migraine.

The effect of exercise and induced expectations on visceral perception in asthmatic patients

It is assumed that visceral perception of the asthmatic patient is not only influenced by the physiological response itself but also by cognitions, i.e. specific illness related attitudes and expectations. Thirty-two adult asthmatics were studied in a 2 X 2-factorial design to examine the effect of physical exercise due to an ergometer capacity test (set at a load of 40 and 80 watt respectively) and induced expectations about the consequences of this task on broncho-constriction. Two sets of instructions were used to induce anticipations of harmful and non-harmful consequences respectively. The following dependent variables were registered: airways resistance, skin resistance and visceral perception (rating of physiological changes). Before the experiment the habitual way of reacting to asthma-relevant cues in each subject was assessed. Only small effects of the different ergometer loads on physiological responding and no effects of the experimental variables on visceral perception were found using an analysis of variance approach. A covariance analysis, however, using the trait variable as covariate, demonstrated that the induced 'harmful' anticipation significantly intensified the perception of visceral changes and even had some influence on asthma-relevant physiological responding.

Psychophysiological reactivity of migraine sufferers in conditions of stress and relaxation

The assumption of a specific migraine-related psychophysiological response stereotype under conditions of stress, recovery and relaxation was examined in 37 migraineurs (non-headache state) and 44 normal controls. Two stressors were presented, industrial noise and a 'social discomfort' situation, each was followed by a recovery period. Relaxation was induced by verbal instructions accompanied by soft music. The following physiological measures were assessed: pulse volume amplitude (fronto-temporal and digital), skin temperature (fronto-temporal and digital) and skin resistance responses. Results showed no group differences in responses to the stressors. Physiological recovery from stress was delayed in migraineurs in the electrodermal parameter. During relaxation, migraineurs showed less digital vasodilation than the controls. Overall, physiological and subjective responses differed between the two stressors. The hypothesis of a specific vasomotor stress response stereotype in migraineurs could not be corroborated. The observed differences in relaxation and recovery were hypothesized. But the overall results are not easily explained on the grounds of a coherent model (e.g. elevated sympathetic arousal level).