[Clinical observation on the mental symptoms of functional dyspepsia and its treatment]

OBJECTIVE

To explore the relationship between the mental symptoms and the functional dyspepsia (FD), and the effect of Xiaoyu decoction (XYD) plus psychotherapy on FD.

METHODS

SCL-90 scale and FD symptom scale were used to estimate the condition of 56 healthy subjects and 56 patients of FD before and after 4 weeks treatment with XYD plus psychotherapy.

RESULTS

There was significant difference in SCL-90 scales between the healthy subjects and the FD patients before treatment (P < 0.01). After treatment, the mental symptoms and the symptom of FD in the patients were markedly improved, as compared with those before treatment, the difference was significant (P < 0.01).

CONCLUSION

Mental symptoms, such as depression and anxiety exists widely in patients of FD, are closely related to FD. XYD plus psychotherapy could treat it effectively.

Effect of population screening and treatment for Helicobacter pylori on dyspepsia and quality of life in the community: a randomised controlled trial. Leeds HELP Study Group

BACKGROUND

Infection with Helicobacter pylori is the main cause of peptic-ulcer disease. Treatment of this infection might lower the prevalence of dyspepsia in the community and improve quality of life. We investigated this possibility in a double-blind randomised controlled trial.

METHODS

Individuals aged 40-49 years were randomly selected from the lists of 36 primary-care centres. A researcher interviewed participants with a validated dyspepsia questionnaire and the psychological general wellbeing index (PGWB). H. pylori status was assessed by the carbon-13-labelled urea breath test. Infected participants were randomly assigned active treatment (omeprazole 20 mg, clarithromycin 250 mg, and tinidazole 500 mg, each twice daily for 7 days) or identical placebo. Participants were followed up at 6 months and 2 years.

FINDINGS

Of 32,929 individuals invited, 8455 attended and were eligible; 2324 were positive for H. pylori and were assigned active treatment (1161) or placebo (1163). 1773 (76%) returned at 2 years. Dyspepsia or symptoms of gastro-oesophageal reflux were reported in 247 (28%) of 880 in the treatment group and 291 (33%) of 871 in the placebo group (absolute-risk reduction 5% [95% CI 1-10]). H. pylori treatment had no significant effect on quality of life (mean difference in PGWB score between groups 0.86 [-0.33 to 2.05]).

INTERPRETATION

Community screening and treatment for H. pylori produced only a 5% reduction in dyspepsia. This small benefit had no impact on quality of life.

Significance of autonomic nervous system activity in functional dyspepsia

The purpose of this study was to examine if patients with functional dyspepsia could be separated into meaningful groups based on their autonomic function. Subjects were divided into two groups, and symptoms, gastric myoelectrical activity, gastric emptying, and psychological factors were compared. Group 1 had less autonomic variability but more cardiac reactivity than group 2. Symptom reports did not differ between groups. Group 1 had higher neuroticism scores than group 2, while group 2 showed greater tachyarrhythmia in response to drinking water than group 1. The relatively low autonomic variability in group 1 is consistent with higher sympathetic activity and may be associated with the group's greater neuroticism. The relative lack of cardiac reactivity in group 2 is consistent with lack of autonomic flexibility and may be related to the tachyarrhythmia observed in that group. The results of this study suggest that autonomic function may play a significant role in functional dyspepsia.

Quality of life in patients with upper gastrointestinal symptoms: results from the Domestic/International Gastroenterology Surveillance Study (DIGEST)

BACKGROUND

Our purpose was to evaluate the impact of upper gastrointestinal (GI) symptoms on quality of life (QoL), which was assessed using the Psychological General Well-Being Index (PGWBI) and the three-item Interference with Daily Life Index (IDLI).

METHODS

The Domestic/International Gastroenterology Surveillance Study (DIGEST) was conducted among 5581 respondents (mean age 44 years) from 10 countries (seven European countries plus Canada, USA and Japan).

RESULTS

Approximately 25% of the respondents reported conditions such as hypertension, asthma or diabetes, and a mean of 46.4% reported at least one GI symptom. The most frequent symptoms were heartburn, diarrhoea and postprandial fullness. Approximately 10-20% of the respondents reporting individual symptoms experienced these several times a week. Symptoms were considered as severe or interfering 'quite a lot' with daily activities by at least 7.3% and 4.8% of respondents, respectively. PGWBI scores varied from 71.82 (Italy) to 79.43 (Switzerland) and daily activity scores from 88.62 (USA) to 97.78 (Switzerland). Female gender, medical conditions and presence of GI symptoms were associated with significantly impaired wellbeing and daily life. PGWBI and IDLI scores were lower among respondents with relevant upper GI symptoms than non-upper GI symptoms. Among upper GI symptom groups, subjects with ulcer-like symptoms had lower scores than patients with GERD-like or dysmotility-like symptoms. PGWBI and IDLI scores were found to discriminate between respondents reporting different symptom frequencies and severities.

CONCLUSIONS

Results from the DIGEST demonstrate on a large scale the importance of GI symptoms in daily life and their influence on QoL.

Relationship between upper gastrointestinal symptoms and lifestyle, psychosocial factors and comorbidity in the general population: results from the Domestic/International Gastroenterology Surveillance Study (DIGEST)

BACKGROUND

The Domestic/International Gastroenterology Surveillance Study (DIGEST) investigated the prevalence and economic/quality-of-life impact of upper gastrointestinal (GI) symptoms over 3 months among the general population of seven international sites (n = 5581).

METHODS

Respondents were classified as having relevant or non-relevant symptoms, and were further classified as having gastro-oesophageal reflux disease (GORD)-, ulcer-, or dysmotility-like symptoms, based on their most bothersome symptom. Associations were investigated between the prevalence of relevant upper GI symptoms and these subtypes, and the following potential risk factors: psychosocial variables (income, educational level, marital status, having children, occupation, any significant life event during previous year); lifestyle variables (tobacco use, levels of alcohol and caffeine consumption); comorbidity variables (illnesses or symptoms experienced in the previous 3 months, concurrent conditions diagnosed by a doctor, prescriptions and over-the-counter (OTC) medications taken in the previous 3 months for health problems other than upper GI symptoms).

RESULTS AND CONCLUSIONS

The most notable risk factors for the occurrence of upper GI symptoms, including symptoms indicative of GORD, were found to be various indicators of psychological stress (particularly recent life events) and psychiatric disease. A wide range of other non-psychiatric illnesses and their treatments was also clearly associated with the occurrence of upper GI symptoms, consistent with these symptoms occurring in many organic illnesses or as adverse effects of their treatments. Smoking was also found to be associated with GORD-like symptoms.

Coping style of individuals with functional dyspepsia

OBJECTIVES

The objectives of the study described here were to 1) examine the coping style of patients with functional dyspepsia (FD) and 2) adopt a new interview questionnaire to examine the extent of discriminativeness in the use of coping strategies across different stressful situations.

METHODS

A matched case-control design was adopted to compare differences among a target group of 30 patients with FD, a pain control group of 30 patients with rheumatism, and a control group of 30 healthy persons. A new interview questionnaire, the Coping Flexibility Interview Schedule, was used to assess subjects' experience of stressful life events, use of coping strategies, and perceived severity of major FD symptoms.

RESULTS

Subjects with FD perceived their experienced stressors as more uncontrollable and as having a greater impact (p < .05). They also used more direct-action strategies but fewer divert attention, acceptance, social support, and relaxation strategies when handling stressful life events (p < .05). A significant group-by-controllability interaction effect was found (p < .001), indicating that FD subjects tended to use coping strategies nondiscriminatively, whereas both rheumatic and healthy subjects tended to use coping strategies more discriminatively across stressful life events of different extents of controllability.

CONCLUSIONS

These results indicate that FD patients are characterized by a nondiscriminative, action-oriented coping style. The implications of this finding for the extant body of research and the advantages of using our interview questionnaire, which has a more flexible format, are discussed.

Esophageal motility and psychiatric factors in functional dyspepsia patients with or without pain

Subtypes of functional dyspepsia (FD), including refluxlike dyspepsia, ulcerlike dyspepsia, dysmotility-like dyspepsia, and nonspecific dyspepsia, have been described and are widely used clinically. However, these symptom patterns often overlap, and the terms are insufficient for indicating all FD symptoms. In this study, we divided 71 FD patients into two groups: patients with or without pain. Group I, the pain dyspepsia group, included patients in whom the main symptoms were epigastralgia and/or chest pain. Group II, the painless dyspepsia group, included patients without pain, in whom the symptoms were nausea, vomiting, and heartburn. We examined the relationship between esophageal function and psychiatric factors in the test groups and compared them with a control group. Of the FD patients, 19.7% [8 (25%) of 32 group I patients, 6 (15.4%) of 39 group II patients] had esophageal motility disorders, such as nutcracker esophagus and diffuse esophageal spasm. The LES pressure of group I was higher than that of group II by esophageal manometry (P < 0.05). In 17 (53.1%) of 32 group I patients and 31 (79.5%) of 39 group II patients, psychiatric disorders (38.0% had depressive disorder and 21.1% had an anxiety disorder) were diagnosed following DSM III-R criteria. Group II tended to be more depressive than group I (P = 0.0508). Psychological assessment scores, STAI-I and STAI-II, were higher in groups I and II than in the control group (P < 0.001). Long-term distress, anxiety, and depression seem to influence the symptoms of FD patients. Esophageal dysmotility may be an important functional abnormality of FD.

The impact of patients' influence on recovery in a group of patients with dyspepsia

BACKGROUND

The approach to health and disease can either be salutogenic (origins of health) or pathogenic (disease causing), which thus makes recovery a concept featuring several different angles. Antonovsky, with his concept of salutogenesis, tried to reach a more complete understanding of its favourable effects on health.

OBJECTIVE

We aimed to investigate, understand and learn from the experiences of a small group of patients about factors leading to recovery.

METHODS

A qualitative approach was used to explore patient experiences. One semi-structured interview was conducted by one of the authors (BN) with each of the 18 patients suffering from dyspepsia who had been investigated by means of gastroscopy at a university hospital clinic 12-15 years previously. The interviews were recorded either in written notes composed directly after the interviews or tape-recorded and subsequently transcribed. A modified form of grounded theory according to Strauss-Corbin was used to analyse the data.

RESULTS

A pattern featuring five types of patients' influence on their lives was discerned, ranging from "a sense of no possibility of having an influence on existence/life" to "having influence". Strategies used by patients to maintain health could be categorized into four types: "extremists", "oscillators", "leapers" and "full-scalers".

CONCLUSIONS

Listening to patients who had experiences with dyspepsia brought patient influence on their own lives and on the care process into focus. We consider that there might be a link between patients having an influence on their lives and their being healthy today. In clinical practice, patient recovery and health promotion could gain from a perspective where patient influence is treated with esteem and emphasized in the consultation. In the future, research design could benefit from taking patient influence on the care process into consideration. However, no causal linkage between patient influence and patient outcome was established in this study. In order to do that, studies with quantitative design should be undertaken in the future.

Nonulcer dyspepsia: what it is and what it is not

Nonulcer dyspepsia is a description of persistent or recurrent upper abdominal pain or discomfort with no structural or biochemical explanation for the patient's symptoms. The exact cause of nonulcer dyspepsia is not known, but many myths have evolved regarding its etiology and treatment. The goal of this review is to evaluate the potential causes of nonulcer dyspepsia. By determining what it is and what it is not, we can be more selective in our approach to diagnosis and our choice of empiric therapies.

Does fear of serious disease predict consulting behaviour amongst patients with dyspepsia in general practice?

BACKGROUND

There have been relatively few studies of health care utilization amongst patients with upper gastrointestinal (GI) complaints. We postulated that health care utilization amongst patients with dyspepsia is primarily driven by fear of serious disease.

METHOD

Consecutive patients presenting to primary care with dyspepsia were questioned about their health care utilization over a 12-month pre-consultation period. The patients completed a questionnaire which included validated measures of GI symptoms (including symptom frequency, duration and severity), and the shortened neuroticism scale of the Eysenck Personality Questionnaire. In total, 614 patients were recruited into the study, and 596 patients provided details of their health care utilization. Previous health care utilization was defined as one or more primary care visits for upper GI symptoms in the 12 months prior to the index visit; frequent health care utilization was defined as six or more visits over the same period.

RESULTS

Previous health care utilization was reported by 80% of patients, while frequent health care utilization was reported by 26% of patients. Fear of serious illness and fear of cancer were univariately associated with previous and frequent health care utilization (both P = 0.001). However, the only independent predictors of previous health care utilization were frequent dyspepsia (odds ratio (OR) = 2.17), pain-related anxiety (OR = 2.08-4.66) and higher neuroticism scores (OR = 1.12); independent predictors of frequent health care utilization were frequent dyspepsia (OR = 3.25), pain-related anxiety (OR = 1.74-6.08), female gender (OR = 1.73) and being a non-drinker (OR = 1.72). Health care utilization was not independently associated with symptom severity or duration, or with patients' characteristics, such as age, marital status, ethnicity, smoking status or the use of non-steroidal antiinflammatory drugs.

CONCLUSIONS

Consulting behaviour amongst patients with dyspepsia is driven in part by psychological factors and, in particular, by symptom-related anxiety as well as by the frequency of dyspepsia, but not primarily by fear of serious disease. Anxiety may help sustain health care utilization once the behaviour has been established.

Validation of a specific quality of life questionnaire for functional digestive disorders

BACKGROUND

Dyspepsia and irritable bowel syndrome are suitable conditions for assessment of quality of life. Their similarities justify the elaboration of a single specific questionnaire for the two conditions.

AIMS

To examine the process leading to the validation of the psychometric properties of the functional digestive disorders quality of life questionnaire (FDDQL).

METHODS

Initially, the questionnaire was given to 154 patients, to assess its acceptability and reproducibility, analyse its content, and reduce the number of items. Its responsiveness was tested during two therapeutic trials which included 428 patients. The questionnaire has been translated into French, English, and German. The psychometric validation study was conducted in France, United Kingdom, and Germany by 187 practitioners. A total of 401 patients with dyspepsia or irritable bowel syndrome, defined by the Rome criteria, filled in the FDDQL and generic SF-36 questionnaires.

RESULTS

The structure of the FDDQL scales was checked by factorial analysis. Its reliability was expressed by a Cronbach's alpha coefficient of 0.94. Assessment of its discriminant validity showed that the more severe the functional digestive disorders, the more impaired the quality of life (p<0.05). Concurrent validity was supported by the correlation found between the FDDQL and SF-36 questionnaire scales. The final version of the questionnaire contains 43 items belonging to eight domains.

CONCLUSIONS

The properties of the FDDQL questionnaire, available in French, English, and German, make it appropriate for use in clinical trials designed to evaluate its responsiveness to treatment among patients with dyspepsia and irritable bowel syndrome.

Measuring quality of life in dyspeptic patients: development and validation of a new specific health status questionnaire: final report from the Italian QPD project involving 4000 patients

OBJECTIVE

Despite the fact that gastrointestinal disorders represent one of the most common reasons for medical consultations, formal assessment of patients' health-related quality of life (HRQOL) has been carried out only in a few studies, and in most cases generic questionnaires have been adopted. Because the specific issue of living with dyspeptic problems has been addressed in very few cases and no questionnaire has been shown to be appropriate for the Italian setting, a prospective project was launched to develop a specific HRQOL questionnaire for dyspepsia sufferers tailored to Italian patients but also appropriate in other cultural settings.

METHODS

The project consisted in a 3-yr, three-phase survey, in which different versions of the quality of life in peptic disease questionnaire (QPD) were developed through expert and patient focus groups and empiric field studies and then administered to patients recruited in five multicenter studies. Standard psychometric techniques were used to evaluate the validity, reliability, responsiveness, and patient acceptability of the QPD.

RESULTS

Three different versions of the QPD questionnaire were self-administered to more than 4000 patients. The final 30-item version, measuring three health concepts related to dyspeptic disease (anxiety induced by pain, social restriction, symptom perception), fulfilled the recommended psychometric criteria in terms of reliability and validity, correlated with health concepts measured with a well-known independent generic HRQOL instrument (the SF-36 Health Survey questionnaire) and was relatively invariant to diagnosis and sociodemographic variables; it also correlated with a measure of gastric pain frequency and was able to detect meaningful differences over time.

CONCLUSIONS

Although further validation studies in different cultural and linguistic settings are mandatory before any firm conclusions can be drawn regarding the cross-cultural validity of the QPD, the data obtained provide evidence of the psychometric validity and robustness of the questionnaire when used in a fairly large, well-characterized population of Italian dyspeptic patients.

Psychological factors in functional gastrointestinal disorders: characteristics of the disorder or of the illness behavior?

OBJECTIVE

This study examines factors affecting the frequency of physician consultations by individuals with functional gastrointestinal disorders (FGD) in a group of subjects with functional dyspepsia or irritable bowel syndrome. Systematic selection of persons who were already seeing a physician for one of these problems was avoided by conducting an epidemiological field study rather than a clinical study.

METHODS

A representative sample of the German population (N=2201) completed a questionnaire that included, in addition to the criterion (number of physician visits in the past 12 months), items aimed at identifying the target group and questions about physical symptoms, illness behavior, living situation, personality features, and sociodemographic status (a total of 31 predictors).

RESULTS

Individuals with functional gastrointestinal disorders who consulted a physician for their gastrointestinal disorders and those who did not differed significantly, especially on psychological measures. The differences between these individuals and the general population were greater for the consulters than for the nonconsulters. Multiple regression analyses yielded nine predictors that explained 40.2% of the variance of the criterion. The best predictors of frequency of physician consultations were the duration of periods with symptoms and psychological factors, such as the severity of depression and the patients' views on the cause of their illness.

CONCLUSIONS

The psychopathology seen in people with functional gastrointestinal disorders is of two types: one is a characteristic of the illness itself and the other leads the individual to consult a physician. When gastroenterologists see patients with such disorders, they can assume that they may be dealing with a self-selected group of individuals with psychological stress. Psychological assessment would, therefore, be useful to determine whether a given individual with FGD might benefit from psychotherapy.

Problems in measurement of quality of life in dyspepsia trials

In this review methodological problems in the measurement of quality of life in non-ulcer dyspepsia (NUD) patients are discussed. To date very few validated outcome measures are available for NUD-trials. It is unclear whether non GI-related symptoms need to be measured by these instruments in addition to GI-symptoms. Another important issue is how overlap with patients who suffer from gastro-esophageal reflux disease can be avoided.

Today's therapy of functional gastrointestinal disorders--does it help?

Functional gastrointestinal disorders are best understood by applying a bio-psycho-social model. The diseases are strongly associated with psychological factors, and in functional dyspepsia, low vagal activity might be a mediating mechanism by which psychological factors (like neuroticism and stress) influence gastrointestinal physiology and cause epigastric discomfort. Low vagal activity may be a manifestation of stress and a cause of impaired gastric accommodation to meals. Epigastric discomfort is elicited when the stomach is distended without prior (vagal) reflex relaxation. Conventional therapy for acid-related dyspepsia does not improve accommodation and hence, is ineffective. The beneficial effect of experimental therapy, like glyceryl trinitrate and sumatriptan, which improve gastric accommodation, gives very good prospects for further development. For patients with irritable bowel syndrome, today's therapy seems similarly inefficacious, but several new potentially effective drugs are at present undergoing clinical trials.

Quality of Life in Reflux and Dyspepsia patients. Psychometric documentation of a new disease-specific questionnaire (QOLRAD)

OBJECTIVE

To develop a disease-specific QOL instrument (QOLRAD) addressing patient concerns in gastroesophageal reflux disease (GERD) and dyspepsia. Patients. 759 male (45%) and female (55%) patients with a mean age of 48.4 years (sd 15.2) were used in the psychometric evaluation.

MAIN OUTCOME MEASURES

A pilot version of QOLRAD, the Gastrointestinal Symptoms Rating Scale (GSRS) and the SF-36 were completed prior to endoscopy. Items with a high ceiling effect, items measuring a different construct, i.e. with a low squared multiple correlation (R < 0.5) with the other items, items that showed redundancy by a high correlation (>0.80) with another item were removed. A confirmatory factor analysis was also performed.

RESULTS

The final questionnaire included 25 items depicting problems with emotions, vitality, sleep, eating/drinking, and physical/social functioning. The internal consistency reliability was high (alpha value overall 0.97, dimensions 0.89-94). Construct validity, i.e. the associations between similar constructs in the QOLRAD, the SF-36 and the GSRS scores was confirmed. Pain and symptom severity were markers of impaired QOL. The impact on health-related QOL was similar across the functional gastrointestinal disorders with the exception of patients with a normal endoscopy, who did slightly worse.

CONCLUSION

The QOLRAD is a short and user-friendly instrument with excellent psychometric properties. Its responsiveness to change in (AVMC1) clinical trials is currently being explored.

Validation of seven graded diary cards for severity of dyspeptic symptoms in patients with non ulcer dyspepsia

The diary card as a measure of the severity of pain or discomfort in the stomach on a 7 graded scale was validated using data from a randomised placebo controlled clinical trial in patients with non-ulcer dyspepsia (NUD). The diary card measure was compared to two other measures: a symptom question in a gastro-intestinal symptom questionnaire and a symptom severity rating made by the investigator based on an interview with the patient at the clinical visit. The reliability coefficient for the mean of the diary card scores from 7 consecutive days was estimated to 0.71. The mean of the scores from 7 consecutive days was approximately as sensitive to change as the other two measures.

Development of a new dyspepsia impact scale: the Nepean Dyspepsia Index

BACKGROUND

There is not at present a suitable disease-specific health-related quality of life instrument for uninvestigated dyspepsia and functional (non-ulcer) dyspepsia.

AIM

To develop a new multi-dimensional disease-specific instrument.

METHODS

The Nepean Dyspepsia Index (NDI) was designed to measure impairment of a subject's ability to engage in relevant aspects of their life and also their enjoyment of these aspects; in addition, the individual importance of each aspect is assessed. A 42-item quality of life measure was developed and tested, both in out-patients presenting to general practice with upper gastrointestinal complaints (n = 113) and in a randomly chosen population-based sample (n = 347).

RESULTS

Adequate face and content validity was documented by an expert panel. Factor analysis identified four clinically relevant subscales: interference with activities of daily living, work, enjoyment of life and emotional well-being; lack of knowledge and control over the illness; disturbance to eating or drinking; and disturbance to sleep because of dyspepsia. These scales had high internal consistency. Both symptoms and the quality of life scores discriminated dyspepsia from health.

CONCLUSION

The Nepean Dyspepsia Index is a reliable and valid disease-specific index for dyspepsia, measuring symptoms and health-related quality of life.

Dyspepsia in relation to Helicobacter pylori infection and psychosocial work stress in white collar employees

OBJECTIVE

We undertook an investigation of the relationship between psychosocial work stress and Helicobacter pylori (H. pylori) infection with dyspepsia.

METHODS

We conducted a cross-sectional study among 189 employees of a health insurance company in the city of Ulm, Germany.

RESULTS

A clear association between work-related psychosocial factors and the occurrence of dyspeptic symptoms during the past 3 months was evident. Persons who were considered to have a critical style of coping with work demands suffered more often from dyspeptic symptoms. Current infection with H. pylori was not associated with prevalence of dyspeptic symptoms. These results were also confirmed by adjustment for age, gender, smoking status, education, and use of antiinflammatory drugs within the past 3 months, by means of multivariate analysis. The odds ratio (OR) for having a dyspepsia symptom score in the upper tertile versus the 1st or 2nd was 3.22 (95% confidence interval [CI], 1.56-6.65), given that the employee was considered to have a critical style of coping with work demands. The OR for having a dyspepsia symptom score in the upper tertile given H. pylori infection was 1.23 (95% CI, 0.44-3.46), indicating no association of current H. pylori infection with dyspeptic symptoms.

CONCLUSIONS

A critical style of coping with work demands may be an important determinant for dyspepsia-like symptoms. Therefore, in the absence of an underlying disease, specific intervention programs should be targeted at the behavior of the affected individual (e.g., stress-reduction programs) rather than on the treatment of specific symptoms or infection with H. pylori.

Are psychosocial factors of aetiological importance in functional dyspepsia?

The causes of functional dyspepsia remain unclear. Research has linked other functional gastrointestinal disorders, particularly irritable bowel syndrome, to a history of physical or sexual abuse, psychosocial distress and certain psychiatric disorders. In functional dyspepsia, there is a possibility of certain psychiatric disorders, particularly alcohol abuse and eating disorders, indirectly influencing the development of functional dyspepsia-like symptoms. However, the literature on possible psychosocial correlates in functional dyspepsia is not as mature as the literature on irritable bowel syndrome. This paper critically reviews the psychosocial dimensions and implications for the psychotherapeutic treatment of functional dyspepsia.

Measuring health-related quality of life in patients with upper gastrointestinal disease

Measurement of health-related quality of life (HRQL) is becoming an increasingly important endpoint to researchers and clinicians. In the context of upper gastrointestinal disorders, understanding the impact of the symptoms and their treatments on physical, psychological, and emotional well-being is crucial. The objective of this review is to provide a background for HRQL assessment for patients with upper GI disease. We assess and critique available generic and disease-specific HRQL instruments, and specify the factors that should be considered when evaluating an instrument. If employed correctly, HRQL assessments for patients with upper GI disease could improve quality of care.

Estimating the cost of lost productivity in dyspepsia

BACKGROUND

In the field of gastrointestinal disease, productivity costs are highly relevant because work loss is substantial in dyspeptic patients. Productivity costs are normally calculated by multiplying days absent valued by gross earnings. This, however, might lead to an overestimation.

AIM

To use a conservative approach to calculating productivity costs, taking absence compensating mechanisms into account.

METHODS

Patients who visited their general practitioner for the first time with dyspeptic complaints and patients who were known to have persistent dyspeptic complaints were enrolled in two studies. In total, 136 patients completed a questionnaire about their employment situation, absence from work and absence compensating mechanisms.

RESULTS

Sixty-six of the respondents had a paid job, of which 25 (38%) reported absence from work during the previous 4 weeks (average 3.0 days, 1.9 days related to dyspeptic complaints). More than 50% of the employed respondents answered that absence could be compensated for by colleagues, and only in 8% of the cases was absence compensated for by overtime. Using our conservative approach, only one-quarter of the productivity costs remained, compared to the current approach of valuing each day absent as a loss of productivity.

CONCLUSIONS

We suggest using both the current and the conservative approaches, analogous to the principles of sensitivity analysis, to avoid overestimation of productivity costs.

Why do dyspeptic patients over the age of 50 consult their general practitioner? A qualitative investigation of health beliefs relating to dyspepsia

BACKGROUND

The prognosis of late-diagnosed gastric cancer is poor, yet less than half of dyspeptic patients consult their general practitioner (GP).

AIM

To construct an explanatory model of the decision to consult with dyspepsia in older patients.

METHOD

A total of 75 patients over the age of 50 years who had consulted with dyspepsia at one of two inner city general practices were invited to an in-depth interview. The interviews were taped, transcribed, and analysed using the computer software NUD.IST, according to the principles of grounded theory.

RESULTS

Altogether, 31 interviews were conducted. The perceived threat of cancer and the need for reassurance were key influences on the decision to consult. Cues such as a change in symptoms were important in prompting a re-evaluation of the likely cause. Personal vulnerability to serious illness was often mentioned in the context of family or friends' experience, but tempered by an individual's life expectations.

CONCLUSION

Most patients who had delayed consultation put their symptoms down to 'old age' or 'spicy food'. However, a significant minority were fatalistic, suspecting the worst but fearing medical interventions.

Functional gastrointestinal disorders and eating disorders. Relevance of the association in clinical management

BACKGROUND

As functional gastrointestinal disorders (FGID) are common in eating disorder patients, we aimed to assess past eating disorders in patients referred for current FGID.

METHODS

One hundred and twenty-seven consecutive FGID outpatients and 163 patients with gallstone disease (GD) were enrolled. All patients were interviewed to detect GI symptoms (by means of the GI Symptom Rating Scale), lifetime eating disorders (on the basis of DSM-IV criteria), and current psychologic distress (on the Hospital Anxiety and Depression Scale).

RESULTS

Past eating disorders were significantly more prevalent in FGID (15.7%) than in GD patients (3.1%) (chi-square = 14.6, P < 0.001). FGID patients with past eating disorders were significantly younger, more educated, more psychologically distressed, more dyspeptic, and more were women than FGID patients without past eating disorders.

CONCLUSIONS

This study confirms the previously found association between functional GI symptoms and eating disorders and shows that functional GI symptoms may still persist even after the recovery from eating disorders, particularly in psychologically distressed patients.

Treating nonulcer dyspepsia considering both functional disorders of the digestive system and psychiatric conditions

Nonulcer dyspepsia (NUD) is a common syndrome, but the optimal treatments have yet to be established. This study was performed to determine the most effective treatment for NUD. Subjects were recruited through the Department of General Internal Medicine at the Kyushu University Hospital because of their somatic symptoms. When no organic lesions were found, the patients were directed to consult our department (Psychosomatic Medicine); 194 consecutive NUD patients were studied. All subjects were assessed psychiatrically with the Structured Clinical Interview for DSM-III-R(SCID). Patients with serious NUD were hospitalized, and randomly divided into control (N = 42) and experimental groups (N = 86). The controls were treated with physical treatment alone. The experimental group received psychiatric treatment in addition, based on the results of SCID. The experimental group showed a significant improvement compared with the controls (P < 0.0001). The treatment for NUD taking into consideration both the physical and psychiatric conditions is highly effective.

Does endoscopy have a positive impact on quality of life in dyspepsia?

BACKGROUND

It is unclear whether normal endoscopy results in patients investigated for dyspepsia has therapeutic value. Therefore the aim of this study was to evaluate the effect of the endoscopy on quality of life and dyspeptic symptoms.

METHODS

One hundred ninety-six symptomatic patients (85 men and 111 women, mean age 42.9 years), who were receiving no treatment, were investigated before and 1 week after endoscopy with the use of a battery of validated questionnaires.

RESULTS

Before endoscopy the health-related quality of life was compromised in comparison with a normal population, but 1 week after a negative endoscopy it is increased to a level which was close to the normal range despite no major change in symptoms. Physical activity and sleep scores improved significantly after endoscopy.

CONCLUSION

The present results suggest that a negative endoscopy improves quality of life in the short-term in patients with dyspepsia, even though symptoms may persist.

Symptoms and visceral perception in severe functional and organic dyspepsia

BACKGROUND

Hypersensitivity of gastric afferent pathways may play an aetiological role in symptoms of functional dyspepsia.

AIMS

To determine whether patients with severe organic dyspepsia (associated with tissue irritation/injury) and those with functional dyspepsia (no detectable tissue irritation) differ in their perception of gastric distension and whether this difference is reflected in differences in their gastrointestinal and psychological symptoms.

METHODS

Perceptual thresholds, referral patterns, and gastrointestinal and psychological symptoms were compared in 23 patients with functional dyspepsia, 10 organic dyspeptics, and 15 healthy controls.

RESULTS

Fifteen (65%) functional dyspeptics and no organic dyspeptics had reduced perceptual thresholds for fullness, discomfort, or pain (odds ratio (OR) 19.56, 95% confidence interval (CI) 1.95 to 476.09, p = 0.0017). Either reduced perceptual thresholds or altered referral was found in 20 (87%) functional dyspeptics and four (20%) organic dyspeptics (OR 10.0, 95% CI 1.34 to 89.54, p = 0.014). During sham distension fullness, discomfort and pain were reported by healthy controls, organic dyspeptics, and functional dyspeptics. A sham response of pain but no other sensation was more frequent among functional dyspeptics (43%) than healthy controls (7%) (OR 10.77, 95% CI 1.10 to 257.35, p = 0.026). Gastrointestinal and psychological symptoms and gastric compliance were similar in the functional and organic groups.

CONCLUSIONS

Alterations in the perception of gastric distension distinguishes between functional and organic dyspepsia, while symptoms do not. A total of 87% of functional dyspeptics studied had evidence of altered visceral afferent function. In this study population, psychological abnormalities or changes in compliance did not explain the findings.

Responses to gastric distension in functional dyspepsia

BACKGROUND

Studies have shown that an altered visceral perception threshold plays a role in the pathogenesis of upper gastrointestinal tract symptoms in dyspeptic patients. However, it is not clear whether the compliance and adaptive relaxation of the proximal stomach contribute to the symptoms.

AIMS

To investigate whether abnormal relaxation or adaptation of the proximal stomach during the interdigestive state and the postprandial phase could explain the symptoms of functional dyspepsia.

SUBJECTS

Twelve volunteers and 12 patients with dysmotility-like functional dyspepsia were included in the study.

METHODS

An electronic barostat was used to investigate adaptation to distension of the proximal stomach and accommodation in response to a liquid meal. Dyspeptic symptoms during distension and accommodation were assessed.

RESULTS

When the subjects were in the fasting state, the pressure-volume curve showed slightly higher compliance in the dyspeptic patients (p < 0.05). Patients not only had a higher score for nausea, bloating, and pain but also the increase in nausea and pain scores with intragastric pressure was higher than in volunteers (p < 0.05). The increase in intragastric bag volume in response to a meal was significantly lower in patients (p < 0.05). Both bloating and pain significantly increased in the patients (p < 0.05), but not in the healthy volunteers.

CONCLUSIONS

Patients with functional dyspepsia show slightly higher compliance to mechanical distension. Their visceral perception of mechanical stress is enhanced. In contrast with the balloon distension, relaxation after a meal was less. Therefore the postprandial symptoms cannot be explained fully by greater global tension in the stomach wall, as assessed by the barostat technique. Visceral hypersensitivity plays a major role in the pathogenesis of the symptoms.

Functional (non-ulcer) dyspepsia: unexplained but not unmanageable

Functional dyspepsia--defined as chronic or recurrent pain or discomfort centred in the upper abdomen, with no clinical or endoscopic evidence of known organic disease--is very common and causes considerable morbidity and loss of productivity. A first priority in management is reassuring patients that they do not have a serious disorder. Few drugs have established benefit and the choice depends on which symptoms predominate--prokinetic drugs may be most beneficial in those in whom discomfort (rather than pain), bloating or nausea is the most bothersome complaint and antisecretory drugs in those with predominant epigastric pain.

Gastrin, cholecystokinin, and somatostatin in a laboratory experiment of patients with functional dyspepsia

OBJECTIVE

To explore the pattern of gastrointestinal hormonal variations in plasma and to relate this to possible pathophysiological mechanisms in functional dyspepsia.

METHOD

There were 25 patients, 12 men and 13 women, aged 24 to 50 years, with recurrent functional dyspepsia, compared with community control subjects pair-wise, matched for age and sex. The subjects participated in a laboratory stress experiment with timed provocations. At fixed intervals, 22 samples of blood were drawn from each subject and frozen for later peptide analyses. Levels of gastrin, cholecystokinin (CCK), and somatostatin were measured by radioimmunoassay. Peptide levels were studied during a friendly greeting, a stress interview, and a food stimulation.

RESULTS

Mean hormone values did not differ between the groups. Smokers had lower mean CCK than nonsmokers. Patients with a high degree of dyspeptic symptoms during the week preceding the experiment had a higher mean somatostatin level than patients with a low degree of dyspeptic symptoms. Heartburn correlated positively with the mean somatostatin level. Mean gastrin correlated with body mass index. During the 15-minute stress interview, significant changes in peptide variations were noted: Gastrin increased in both patient and control group subjects. CCK levels increased in patients from 7.2 pmol/l (6.0-8.5) to 9.8 pmol/l (8.2-11.4), but not in control subjects (p < 0.04, two-way interaction). Somatostatin increased significantly earlier in patients than in the control subjects during the stress interview.

CONCLUSIONS

A positive relationship was found between the mean level of somatostatin and the degree of dyspeptic symptoms. Gastrin, CCK, and somatostatin were all sensitive to an anxiety-provoking interview. CCK and somatostatin may possibly link psychological reactions to the pathophysiology of functional dyspepsia.

Dyspepsia and health care seeking in a community: How important are psychological factors?

The factors that drive subjects with dyspepsia in the community to seek medical care are uncertain. We aimed to identify whether psychological factors explain health care utilization among subjects with dyspepsia. A sample of residents of western Sydney selected randomly from the electoral rolls was mailed a validated self-report questionnaire. Dyspepsia was defined as pain or discomfort centered in the upper abdomen. Potential predictors of physician visits tested included gastrointestinal symptoms, neuroticism (by the Eysenck Personality Questionnaire), psychological morbidity (General Health Questionnaire), and sexual, physical, and emotional abuse (based on standardized criteria). Among 730 subjects, 13% (95% CI 10.3-15.2%) had dyspepsia and 70% (95% CI 59.8-79.5%) had sought medical care. Subjects with dyspepsia had significantly higher neuroticism and psychological morbidity scores and reported childhood emotional abuse more often than those without dyspepsia (all P < 0.05), but none of these were independent predictors. Male gender (OR = 0.58, 95% CI 0.37-0.91), greater pain severity (OR = 2.49, 95% CI 2.12-2.91, P < 0.01), and meeting the Rome criteria for irritable bowel (OR = 2.0, 95% CI 1.06-3.78) were associated with dyspepsia subjects seeing a physician or alternative therapist for abdominal pain or discomfort, explaining 32% of the deviance. Pain severity (OR = 1.39, 95% CI 1.22-1.58) and symptoms of five or more years duration (OR = 5.73, 95% CI 3.71-8.87) were predictive of dyspepsia subjects ever seeking care for abdominal pain or discomfort, explaining 15% of the deviance. Psychological factors were not significant predictors of seeking medical attention in dyspepsia. Health care seeking among community subjects with dyspepsia is explained in part by symptom severity and duration but not by neuroticism, psychological morbidity, or a history of abuse.

Functional gastrointestinal disorders: psychological, social, and somatic features

BACKGROUND

Psychological, social, and extraintestinal (somatic) disturbances are prominent features of functional gastrointestinal disorders (FGID); little attention, however, has been given to differences in the nature of these disturbances in the various FGID subgroups.

AIMS

(1) To determine whether psychological, social, and extraintestinal factors are associated with specific FGID, and/or with the overall severity and extent of FGID disturbance (the number of coexistent FGID subgroups present in any individual); and (2) to determine whether chronic social stressors link gastrointestinal, extraintestinal, and emotional symptomatologies in FGID.

PATIENTS

One hundred and eighty eight outpatients, fulfilling standard criteria for one or more functional gastroduodenal or functional bowel disorders.

METHODS

Utilising detailed and objective interview and questionnaire methods, detailed gastrointestinal, extraintestinal, psychological, and social data were collected.

RESULTS

Chronic stressors and extraintestinal and emotional symptomatologies were prominent features of functional dyspepsia (FD) and irritable bowel syndrome (IBS) alone. These particular features were, however, highly specific for particular FD and/or IBS subgroups. The chronic threat component of social stressors predicted the nature and extent of multisystem (gastrointestinal, extraintestinal, and emotional) symptomatology.

CONCLUSIONS

Notable differences between the various FGID subgroups support the symptom based classification of FGID. Chronic stressor provoked psychological and extraintestinal disturbance is most specific for the FD-IBS group of syndromes.

Agreement between medical record data and patients' accounts of their medical history and treatment for dyspepsia

We examined agreement between data abstracted from medical records and interview data for patients with dyspepsia admitted to hospital for endoscopy, to determine the extent to which health records could be used to validate self-reports of dyspepsia and the management of this condition. Results from the sample of 220 patients showed that there was poor agreement between data sources for information about duration of dyspepsia (k=0.34) and previous barium meal examination (k=0.34). Patients reported significantly longer dyspepsia histories (Wilcoxon sign test Z=4.13, p<0.0001) and significantly more barium meals (sign test Z=8.43, p<0.0001) than were documented in their records. There was also disagreement between data sources regarding the number of drugs taken before and after endoscopy (k=0.28 and k=0.31, respectively). Where there was disagreement for number of drugs there was no significant difference in the direction of the disagreement. There was moderate agreement regarding the name of pre-endoscopy medication (k=0.55) and substantial agreement for the name of medication used post-endoscopy (k=0.62). There was very poor agreement regarding diagnosis. The medical record was the gold standard for this information. Choice of data source, medical records or self-reports, will in many instances provide significantly different results and it is likely that this may also be true for other variables of interest to researchers. Thus in the case where no gold standards are available researchers need to consider carefully the implication of choice of data source on their results.

Dyspepsia: how should we measure it?

This study developed and validated a multidimensional measure of dyspepsia. A questionnaire was administered to 126 patients with dyspepsia who presented for care at a VA outpatient clinic and a family physician's private office. Dyspepsia-specific health was measured by self-report using: (1) an existing dyspepsia scale that produces an aggregate score by summing ratings across pain and non-pain symptoms; (2) adaptations of two scales originally designed to measure back pain; and (3) a new scale measuring satisfaction with dyspepsia-related health. Generic health was measured using the SF-36. Results from factor analysis revealed four dimensions of dyspepsia-related health: pain intensity, pain disability, non-pain symptoms, and satisfaction with dyspepsia-related health. After refinements, scales representing the four dimensions conformed to psychometric standards for reliability, and convergent and discriminant validity. The importance of measuring dyspepsia using a multidimensional approach was confirmed by demonstrating that classification of dyspepsia severity depended on the dimension that was assessed. We conclude that dyspepsia is best measured using a multidimensional approach.

Working conditions and family situation in relation to functional gastrointestinal disorders. The Swedish Dyspepsia Project

OBJECTIVE

To examine whether improvement and/or deterioration of functional gastrointestinal symptoms relate to psychosocial factors, and whether patients with such symptoms have special characteristics with regard to working environment in comparison to a referent population.

DESIGN

Multicentre, prospective study of consecutive patients seeking medical advice at health centres for gastrointestinal symptoms.

SETTING

Several municipalities in Sweden: Vänersborg, Trollhättan, Tibro, Alfta, Borensberg, Malmö, Kungälv, Hudiksvall, Vadstena, and Sandviken.

PARTICIPANTS

615 patients, aged 18-81 years, who after medical examination, upper endoscopy and laboratory test were defined as having functional gastrointestinal disorders.

MAIN OUTCOME MEASURES

Initial characteristics and response to treatment according to a 5-graded symptom score as obtained from a psychosocial questionnaire collected during and at the end of a four-week treatment period.

RESULTS

Patients with functional gastrointestinal disorders differed from a referent population of actively employed women and men in the county of Stockholm. They felt less possibility to influence their working conditions. Shift workers were also overrepresented. Psychosocial background factors had an effect on improvement of symptoms during four weeks of treatment. There were some differences between men and women. For women, working hours and home circumstances were important. After four weeks women who worked part-time felt better than those who worked full-time. Married women made a better recovery than single women. For men, working conditions had a greater effect on recovery. Those who felt that they received support from their colleagues at work improved to a greater extent than the other men.

Life events and daily hassles in patients with atypical chest pain

The impact of major life events and daily hassles on atypical chest pain is unknown. The aim of the present study was to investigate the relationship of the occurrence and perception of major life events and daily hassles in atypical chest pain patients. Five groups of subjects were studied. They were healthy controls, atypical chest pain patients without motility/reflux changes, atypical chest pain patients with motility/reflux changes, dyspeptic patients, and patients with chronic obstructive airway disease/peptic ulcer/gallstone. A questionnaire concerning the occurrence and perception of major life events and daily hassles was administered to all five groups of subjects. Using analysis of variance, we found that atypical chest pain patients without underlying motility/reflux changes had significantly higher scores of negative life events and total life events than healthy controls, atypical chest pain patients with underlying motility/reflux changes, and patients with chronic obstructive airway disease/peptic ulcer/gallstone. There were no significant differences between atypical chest pain patients without underlying motility/reflux changes and patients with dyspepsia in terms of the number of negative life events, negative scores, number of positive life events, positive scores, and total life events. Discriminate analysis identified five of the 47 major life events (major changes in sleeping habits, change in work situation, major changes in financial status, retirement, and suffering from severe illness or injury) to be useful for discriminating atypical chest pain patients without underlying motility/reflux changes from the healthy controls and from atypical chest pain patients with underlying motility/reflux changes. The overall correct classification rate was 81.8%. In conclusion, psychological factors, such as perception of negative life events and occurrence and perception of daily hassles, may play a role in the pathogenesis of atypical chest pain.

Symptom improvement from prokinetic therapy corresponds to improved quality of life in patients with severe dyspepsia

Prokinetic therapy has been shown to improve patients' symptoms associated with gastrointestinal motility disorders and quality of life. This study investigated the correlation between clinical improvement and quality of life after 12 months of treatment with cisapride or domperidone in patients with severe dyspepsia. Psychological and quality-of-life measures were assessed at baseline and after 12 months of therapy using three patient-administered, standardized questionnaires: the Minnesota Multiphasic Personality Inventory, the Millon Behavioral Health Inventory, and the Sickness Impact Profile. Changes in clinical symptoms were correlated with changes in these measures. Twenty-seven patients with symptoms of severe dyspepsia were treated with cisapride or domperidone (60-80 mg/day) for 12 months. Symptoms and quality-of-life measures were improved at the end of therapy. There were significant correlations between improvement in clinical symptoms and improvement in quality of life parameters. Patients with more marked symptom improvement had more significant improvements in quality of life measures. We conclude that prokinetic therapy improved symptoms and quality of life. Standardized questionnaires can be used to quantify response to prokinetic therapy and to individualize treatment regimens for patients with dyspepsia who have specific psychologic or behavioral characteristics.

Quality of life in functional dyspepsia

Quality of Life (QOL) in medicine has many meanings but is a subjective entity that broadly refers to those factors that make life worth living for the individual patient with a disease. Measures of health-related QOL assess health perception as well as physical, emotional and social function, and this is referred to as functional status. Such measurement is now considered to be a key factor in the assessment of patients with conditions such as functional dyspepsia, where there is chronic or recurrent unexplained pain or discomfort centred in the upper abdomen. QOL measures may be used to try and discriminate among a number of disease groups or to assess change in disease status over time; different approaches are usually necessary to meet these goals.

Quality of life and Helicobacter pylori eradication

BACKGROUND

It has convincingly been shown that relapses of duodenal ulcers are significantly reduced after eradication of Helicobacter pylori. The aim of this study was to examine the long-term effect of bacteria eradication on Quality of Life (QOL) and subjective somatic symptoms.

METHODS

Seventy-four Helicobacter pylori-positive patients with recurrent duodenal ulcer disease were treated with triple treatment. Relapses, H. pylori status, QOL and subjective somatic symptoms were registered at yearly intervals for 4 years.

RESULTS

Preliminary results show that the patients were more satisfied with the healthcare system, had better sexual relationships and less psychological distress up to 3 years after eradication of the bacteria. They also had fewer symptoms of exhaustion and less stomach discomfort than before triple treatment.

CONCLUSION

Long-term follow-up of patients after eradication of H. pylori shows that QOL is improved and feeling of exhaustion and stomach discomfort reduced.

[Irritable colon and non-ulcer dyspepsia. Functional (somatoform) disorders of the gastrointestinal tract]

Among the functional (somatization) disorders seen in internal and general medicine, irritable colon and non-ulcerous dyspepsia are the most prevalent, forming the largest group of patients with gastroenterological problems. Psychosomatic aspects and the efficacy of psychotherapeutic measures are discussed, and common concurrent forms of morbidity presented. Functional disturbances of the gastrointestinal tract frequently prove to be the "chronicized" leading symptoms of a so-called somatization disorder (ICD-10 classification).

Discriminant analysis of factors distinguishing patients with functional dyspepsia from patients with duodenal ulcer. Significance of somatization

Patients with duodenal ulcer or functional dyspepsia do not differ on dyspeptic symptoms. The aim of the present study was to test the hypothesis that functional dyspepsia and duodenal ulcer are two different diagnostic entities by examining the discriminating power of several anamnestic, biological, and psychosocial variables. Ninety-four patients with duodenal ulcer and 86 patients with functional dyspepsia were included. Anamnestic data, global assessment, Helicobacter pylori status, blood group, Lewisa+ phenotype, and several measures of psychological distress and somatic complaints were registered. Compared to patients with functional dyspepsia, the duodenal ulcer patients were more often infected by Helicobacter pylori and had their stomach discomfort more often relieved by eating. Compared to patients with duodenal ulcer, patients with functional dyspepsia had higher scores of depression, trait anxiety, general psychopathology and different somatic complaints (called somatization). They were also less satisfied with the health care system, their disorder had a greater negative impact on their quality of life, and their global assessment of own health was poorer. Discriminant analysis including age, smoking, Helicobacter pylori status, global assessment, and somatic complaint classified 86.1% of the patients correctly (77.9% of the patients with functional dyspepsia and 93.6% of the patients with duodenal ulcer). It is concluded that duodenal ulcer and functional dyspepsia are two separate diagnostic entities. Patients with duodenal ulcer are older, smoke more often, and almost all are infected with Helicobacter pylori, while patients with functional dyspepsia are characterized by somatization and a negative assessment of their own health.

Non-ulcer dyspepsia: does Helicobacter pylori matter?

Non-ulcer dyspepsia is a heterogenous disorder characterised by chronic or recurrent abdominal or retrosternal discomfort lasting for more than four weeks for which no cause can be determined. Helicobacter pylori has been implicated as a potential cause in a subset of patients but the association has not been proven and H pylori eradication in patients with non-ulcer dyspepsia has had variable results. Large well-controlled studies are needed to clarify the relationship.