The relationship between psychological distress and gastrointestinal symptoms in women with irritable bowel syndrome

Gender differences in gastrointestinal, biopsychosocial and healthcare-seeking behaviors in Chinese patients with irritable bowel syndrome predominant with diarrhea

BACKGROUND

Evidences of comparison of sex difference in Chinese irritable bowel syndrome (IBS) patients were few. We aim to compare gender difference in the biopsychosocial characteristics of Chinese patients of IBS predominant with diarrhea (IBS-D).

METHODS

IBS-D patients meeting Rome III criteria were enrolled. We administered IBS symptom questionnaires, evaluation of psychological status (HAMD and HAMA scales) and IBS quality of life (IBS-QOL), dietary habits, healthcare seeking behaviors, and compared biopsychosocial characteristics between male and female patients.

RESULTS

Four hundred and ninety patients were enrolled including 299 males and 191 females. More female patients reported abdominal pain associated with defecation (84.3% vs. 74.9%, P = 0.014) while males reported more abdominal discomfort (39.8% vs. 26.7%, P = 0.003). Females had higher IBS symptom score (9.7 ± 1.7 vs. 9.4 ± 1.4, P = 0.025) and more of females had severe abdominal pain/discomfort (17.8% vs. 12.4%, P = 0.013) while there were no significant differences of other bowel symptoms. Females reported higher incidence of comorbid anxiety state (64.9% vs. 52.8%, P = 0.008) and depression state (35.6% vs. 19.7%, P < 0.001) than males. Female patients also had lower IBS-QOL score (70.2 ± 20.4 vs. 75.1 ± 16.8, P = 0.028) and more frequent consultations, as well as less response for dietary modification than males.

CONCLUSIONS

Chinese female patients with IBS-D had more prominent psychosocial disorders compared to male patients and their abdominal symptoms had minor differences.

Relationships Between Abdominal Pain and Fatigue With Psychological Distress as a Mediator in Women With Irritable Bowel Syndrome

Women with irritable bowel syndrome often report fatigue, along with abdominal pain and psychological distress (i.e., depression and anxiety). There is little information about the relationships among these symptoms. Using a secondary data analysis (N = 356), we examined the relationship between abdominal pain and fatigue and whether psychological distress mediates the effect of abdominal pain on fatigue in both across women and within woman with irritable bowel syndrome. Data gathered through a 28-day diary were analyzed with linear regressions. The across-women and within-woman relationships among same-day abdominal pain, fatigue, and psychological distress were examined. Within-woman relationships were also examined for directionality among symptoms (i.e., prior-day abdominal pain predicts next-day fatigue and prior-day fatigue predicts next-day abdominal pain). In across-women and within-woman analyses on the same day, abdominal pain and fatigue were positively correlated. In within-woman analyses, abdominal pain predicted next-day fatigue, but fatigue did not predict next-day pain. In across-women and within-woman analyses, psychological distress partially mediated the effects of abdominal pain on fatigue. Symptom management incorporating strategies to decrease both abdominal pain and psychological distress are likely to reduce fatigue. Nursing interventions, such as self-management skills to reduce abdominal pain and psychological distress, may have the added benefit of reducing fatigue in irritable bowel syndrome.

Food-symptom diaries can generate personalized lifestyle advice for managing gastrointestinal symptoms: A pilot study

BACKGROUND

Gastrointestinal (GI) symptoms have a heterogeneous pathophysiology. Yet, clinical management uses group-level strategies. There is a need for studies exploring personalized management options in patients with GI symptoms. From diaries of GI symptoms, food intake, and psychological distress, we extracted and validated personalized lifestyle advice. Secondly, we investigated group-level GI symptom triggers using meta-analysis.

METHODS

We collected 209 diaries of GI symptoms, food intake, and psychological distress, coming from 3 cohorts of patients with GI symptoms (n = 20, 26, and 163, median lengths 24, 17, and 38 days). Diaries were split into training and test data, analyzed, and the triggers emerging from the training data were tested in the test data. In addition, we did a random effects meta-analysis on the full data to establish the most common GI symptom triggers.

KEY RESULTS

Analysis of the training data allowed us to predict symptom triggers in the test data (r = 0.27, P < .001), especially in the subset of patients with a strong global association between lifestyle factors and symptoms (r = 0.45, P < .001). Low exposure to these triggers in the test data was associated with symptom reduction (P = .043). Meta-analysis showed that caloric intake in the late evening or night predicted an increase in GI symptoms, especially bloating. Several food-symptom associations were found, whereas psychological distress did not clearly lead to more severe GI symptoms.

CONCLUSIONS & INFERENCES

Diaries of GI symptoms, food intake, and psychological distress can lead to meaningful personalized lifestyle advice in subsets of patients.

Sex as a biological variable in irritable bowel syndrome

BACKGROUND

The pathophysiology and mechanisms of irritable bowel syndrome (IBS) involve both central and peripheral mechanisms that result in altered perception, as well as changes in bowel functions. These dysfunctions are associated with motor, sensory, immune, barrier, and intraluminal perturbations, including the microbiota, and their products and endogenous molecules with bioactive properties. There is evidence that these mechanisms are altered in both females and males. However, there is also increasing evidence that sex is a biological variable that impacts a number of aspects of the mechanisms, epidemiology, and manifestations of IBS.

PURPOSE

The objective of this article is to review the evidence of the differences among genders of the following factors in IBS: the brain-gut axis and sex hormones, epidemiology, diagnostic criteria and prognosis, pain perception, colonic transit, abdominal distension, overlap with urogynecological conditions, psychologic issues, anorexia, fibromyalgia, serotonin, and responsiveness to treatment of IBS. It is important to consider the variations attributable to sex in order to enhance the management of patients with IBS and the research of mechanisms involved in IBS.

Stress and the brain-gut axis in functional and chronic-inflammatory gastrointestinal diseases: A transdisciplinary challenge

The broad role of stress in the brain-gut axis is widely acknowledged, with implications for multiple prevalent health conditions that are characterized by chronic gastrointestinal symptoms. These include the functional gastrointestinal disorders (FGID), such as irritable bowel syndrome and functional dyspepsia, as well as inflammatory bowel diseases (IBD) like ulcerative colitis and Crohn's disease. Although the afferent and efferent pathways linking the gut and the brain are modulated by stress, the fields of neurogastroenterology and psychoneuroendocrinology (PNE)/ psychoneuroimmunology (PNI) remain only loosely connected. We aim to contribute to bringing these fields closer together by drawing attention to a fascinating, evolving research area, targeting an audience with a strong interest in the role of stress in health and disease. To this end, this review introduces the concept of the brain-gut axis and its major pathways, and provides a brief introduction to epidemiological and clinical aspects of FGIDs and IBD. From an interdisciplinary PNE/PNI perspective, we then detail current knowledge regarding the role of chronic and acute stress in the pathophysiology of FGID and IBD. We provide an overview of evidence regarding non-pharmacological treatment approaches that target central or peripheral stress mechanisms, and conclude with future directions, particularly those arising from recent advances in the neurosciences and discoveries surrounding the gut microbiota.

Symptom Comparisons Between Asian American and White American Women With Irritable Bowel Syndrome

There is little information on racial/ethnic characteristics of patients with irritable bowel syndrome. In this study, we determined whether the severity of symptoms (gastrointestinal, psychological distress), cognitive beliefs about irritable bowel syndrome, and life impacts (life interference, health-related quality of life) differ between Asian American and White American women with irritable bowel syndrome. We also look at the relationships among these variables. Asian American women (N = 21) and age- and design-matched White American women (N = 63) with irritable bowel syndrome were included. Data were collected from questionnaires and a 28-day daily diary (e.g., abdominal pain, depression). The percent of days with moderate/severe abdominal pain and psychological distress were significantly higher, and constipation- and diarrhea-dominant bowel pattern subtypes were prevalent in White Americans as compared with Asian Americans. Positive relationships of gastrointestinal symptoms with psychological distress, and of gastrointestinal and psychological symptoms with negative cognitive beliefs and negative life impact, were observed in White Americans. Further studies to evaluate contributing (e.g., cultural-environmental, pathophysiological, diet) factors of symptom characteristics in Asian Americans are suggested. Our study provides useful information for healthcare providers to understand symptoms and cultural factors and the potential for culturally tailored symptom management for this patient group.

The mind-body connection in irritable bowel syndrome: A randomised controlled trial of hypnotherapy as a treatment

BACKGROUND

Hypnotherapy has been reported as being beneficial in the treatment of irritable bowel syndrome (IBS). We aimed to test the hypothesis that patients with IBS treated 'holistically' by hypnosis (i.e. by combined psychological and physiological symptom imagery) would have greater improvement in their IBS symptoms than patients treated by hypnosis using standard 'gut-directed' hypnotherapy, and both would be superior to simple relaxation therapy.

METHODS

Patients (n = 51) with Rome II criteria were randomised to 'individualised' (holistic) hypnotherapy, standard 'gut-directed' hypnotherapy or relaxation therapy for a period of 11 weeks with two follow-up assessments at 2 weeks and at 3 months after the completion of the trial. The primary outcome was bowel symptom severity scale (BSSS).

RESULTS

All the participants in this study improved their IBS symptoms (pain, bloating, constipation and diarrhoea) and physical functioning at the end of the treatment from baseline, but this was not significantly different across the treatment arms.

CONCLUSION

Neither 'individualised' nor 'gut-directed' hypnotherapy is superior to relaxation therapy in IBS.

Psychosocial predictors of irritable bowel syndrome diagnosis and symptom severity

OBJECTIVE

This study explored the role of psychosocial factors in predicting both membership to either an irritable bowel syndrome (IBS) or control group, and the severity of IBS symptoms.

METHODS

A total of 149 participants (82 IBS and 67 controls) completed a battery of self-report inventories assessing disposition and environment, cognitive processes, and psychological distress. Logistic regression analyses were used to assess predictive contribution of psychosocial variables to IBS diagnosis. Hierarchical linear regression was then used to assess the relationship of psychosocial variables with the severity of IBS symptoms.

RESULTS

Significant predictors of IBS were found to be alexithymia, the defectiveness/shame schema, and four coping dimensions (active coping, instrumental support, self-blame, and positive reframing), χ(2) (6, N=130)=46.99, p<.001, with predictive accuracy of 72%. Significant predictors of IBS symptom severity were two of the alexithymia subscales (difficulty identifying feelings, and difficulty describing feelings), gender, the schemas of defectiveness/shame and entitlement, and global psychological distress. This model predicted IBS severity F (6, 64)=16.94, p<.001 and accounted for 61.3% of the variability in IBS severity scores.

CONCLUSION

Psychosocial variables account for a large percentage of the differences between an IBS and control group, as well as the variance of symptoms experienced within the IBS group. Alexithymia and the defectiveness schema appear to be related to both IBS and symptom severity.

TPH gene polymorphisms are associated with disease perception and quality of life in women with irritable bowel syndrome

The aims of this exploratory study were to examine whether tryptophan hydroxylase (TPH) gene polymorphisms are associated with psychosocial factors in women with irritable bowel syndrome (IBS). TPH is the rate-limiting enzyme in the biosynthesis of serotonin and has two isoforms, TPH1 and TPH2. Four single nucleotide polymorphisms (SNPs) in the TPH1 gene and one SNP in the TPH2 gene were selected based on previous studies investigating associations between these SNPs and psychiatric or behavioral disorders. One hundred ninety-nine Caucasian women with IBS were included. Results of univariate analysis showed no association between TPH1and TPH2 gene SNPs and current level of psychological distress or psychiatric illness. However, TPH1 gene SNPs were associated with IBS-related cognitions (rs4537731 and rs21105) and quality of life (rs684302 and rs1800532), in particular the mental health and energy subscales. These associations were independent of the subjects' levels of gastrointestinal symptoms. These results suggest that patients' perception of their illness, and of the impact it has on their lives, may be subject to genetic influences, in this case sequence variants in TPH1. However, caution should be used in interpreting these results given the large number of hypothesis tests performed in this exploratory hypothesis-generating study, and the results should be considered tentative until confirmed in an independent sample.

Intervening on cognitions and behavior in irritable bowel syndrome: A feasibility trial using PDAs

OBJECTIVE

Irritable bowel syndrome (IBS) is a common, chronic, and often disabling disorder. Cognitive-behavioral therapy (CBT) has been shown to be effective in alleviating IBS symptoms. The aim of this study was to establish the feasibility and the efficacy of a cognitive-behavioral e-intervention using personal digital assistants (PDAs) on the self-management of IBS patients.

METHODS

A feasibility trial was conducted with 38 control group patients receiving standard care and 37 intervention group patients receiving standard care supplemented with a 4-week CBT intervention on PDAs. All patients fulfilled the diagnostic Rome III criteria for IBS. At baseline, 4-week, and 3-month follow-up, patients' abdominal pain, dysfunctional cognitions, IBS quality of life, and pain catastrophizing thoughts were assessed using written questionnaires.

RESULTS

Between-group comparisons between baseline and 4 weeks showed more overall quality of life improvement, more improvement in catastrophizing thoughts, and more pain improvement in the intervention group. Only improvement in catastrophizing thoughts persisted in the long-term. No significant differences between groups were found for dysfunctional cognitions. As all 37 intervention group patients completed the intervention and completed diaries three times a day for 4 weeks, the e-health intervention seems feasible.

CONCLUSIONS

A cognitive-behavioral intervention on pocket-type computers appears feasible and efficacious for improving IBS-related complaints and cognitions in the short-term. The intervention group improved on several aspects, but most on catastrophizing thoughts, and these improvements even persisted after 3 months. Future studies should focus on unravelling the effective components of this innovative e-health intervention.

Psychological stress and self-reported functional gastrointestinal disorders

Functional gastrointestinal disorders (FGID) are common, but despite their relevance in public health care, the etiology of FGID remains essentially unknown. Stress has been suggested as a pathophysiological factor in FGID. The aims of the present study were (a) to determine the prevalence of FGID in a sample of apparently healthy students, and (b) to determine the association of stress and FGID. The prevalence rates of 21 different FGID were assessed using an internet-based design. Subjective experience of chronic stress, individual coping strategies, and dispositional stress reactivity were measured. A total of 668 subjects provided complete data sets (66% women). About 64.2% reported at least one FGID. Symptoms of FGID were significantly predicted by increased levels of perceived chronic stress, dispositional stress reactivity, and use of maladaptive coping strategies. FGID are common in apparently healthy young individuals. The importance of stress-related factors in individuals suffering from FGID indicates that stress-reducing interventions may be beneficial in these patients.

Comprehensive self-management for irritable bowel syndrome: randomized trial of in-person vs. combined in-person and telephone sessions

OBJECTIVES

Psychological and behavioral therapies are being increasingly used for symptom management in patients with irritable bowel syndrome (IBS). The aims of this study were to compare two delivery modes for a comprehensive self-management (CSM) intervention, primarily by telephone vs. entirely in person, and to compare each with usual care (UC).

METHODS

Adults with IBS were recruited through community advertisement. Subjects (N=188) were randomly assigned to three groups: one in which all nine weekly CSM sessions were delivered in person, one in which six of the nine sessions were conducted over telephone, and one in which subjects received UC. Primary outcome measures were a gastrointestinal (GI) symptom score based on six symptoms from a daily diary and disease-specific quality of life (QOL). These and other outcomes were assessed at baseline and at 3, 6, and 12 months after randomization. Mixed model analyses tested for differences between the three groups in each outcome variable at the three follow-up occasions, controlling for the baseline level of each outcome.

RESULTS

Both GI symptom score and QOL showed significantly greater improvement in the two CSM groups than in the UC group (P<0.001), with the magnitude of this difference being quite similar for the three follow-up time points. The two CSM groups experienced a very similar degree of improvement, and there were no statistically significant differences between the two.

CONCLUSIONS

A CSM program is efficacious whether delivered primarily by telephone or totally in person, and there is no evidence that replacing six of the in-person sessions by telephone sessions reduces the efficacy of the intervention.

Effect of sexual and physical abuse on symptom experiences in women with irritable bowel syndrome

BACKGROUND

Irritable Bowel Syndrome (IBS) is a common chronic functional bowel disorder characterized by alterations in bowel patterns and abdominal pain. One factor that is conjectured to contribute to the onset of IBS is sexual and/or physical abuse in childhood or as an adult. This conjecture is supported by the increased prevalence of abuse experiences in persons with IBS when compared to healthy controls or those with organically-defined gastrointestinal (GI) disorders.

OBJECTIVES

The purposes of the present study were to (a) compare the history of sexual and physical abuse in a sample of women with IBS to a sample of women without IBS and (b) to compare women with IBS who had sexual and physical abusive experiences to those who had not on GI symptoms, psychological distress, healthcare-seeking behavior, and physiological measures.

METHODS

Data were collected from two samples of women (ages 18-40 years) with IBS and controls were recruited through community advertisements and letters from a health maintenance organization. Participants completed questionnaires (i.e., Sexual and Physical Abuse, Bowel Disease Questionnaire, Symptom Checklist-90-R) during an in-person interview and completed a symptom diary each night across one menstrual cycle. Cortisol and catecholamine levels were determined in morning urine samples on 6 days across the menstrual cycle.

RESULTS

More women in the IBS group reported unwanted sexual contact during childhood relative to control women. Within the IBS group, minimal differences were found between those who had experienced abuse and those who had not. Women with IBS who had experienced abuse reported greater impact of GI symptoms on activity.

CONCLUSIONS

The prevalence of a history of childhood sexual abuse experiences is elevated among women with IBS. However, within women with IBS, those with a history of abuse do not appear to be different from those with no history of abuse on GI symptoms, psychological symptoms, or physiological arousal indicators.

A prospective study of the psychobehavioral factors responsible for a change from non-patient irritable bowel syndrome to IBS patient status

Background

To investigate non-patient irritable bowel syndrome (IBS) change to IBS and to determine factors predictive of the onset of IBS, individual biological factors, psychological factors, behavioral factors, and environmental factors were examined.

Methods

The subjects were 105 non-patient IBS (male = 59, female = 46, average age:21.49 ± 2.37), including 68 of the diarrhea-predominant type and 37 of the constipation-predominant type selected from 1,409 university and technical college students by use of a questionnaire based on the Rome II diagnostic criteria. The subjects were followed for three years, and various characteristics and IBS symptoms were serially observed (12 times). The IBS incidence rate was calculated.

Results

During the three years, 37 non-patient IBS (35.24%) changed to IBS: 28 diarrhea-predominant type and 9 constipation-predominant type. All IBS symptoms disappeared in 26 non-patient IBS subjects (24.76%). According to quantification method II (discriminant analysis), seven factors (stressor, two kinds of stress coping styles, cognitive appraisal, eating habits, sleeping time, and psychologically abuse) were adopted as a predictive model for IBS incidence and were confirmed as predictive of IBS.

Conclusion

The results of this research show that non-patient IBS is a changeable state that can change into IBS or persons without symptoms. Most of the non-patient IBS subjects who became asymptomatic had had symptoms for six months or less. Furthermore, the longer a non-patient IBS subject had symptoms, the higher the risk of a change to IBS became. The findings suggest the usefulness of identifying and approaching non-patient IBS as early as possible to prevent the onset of IBS. It must be noted that the persons surveyed in the present study had only the diarrhea-predominant and constipation-predominant types. Therefore, the findings of the present study are limited only these two types. Further study including the mixed type is needed.

'I feel as if my IBS is keeping me hostage!' Exploring the negative impact of irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD) upon university-aged women

The purpose of this article is to describe the negative impact of irritable bowel syndrome (IBS) and/or inflammatory bowel disease (IBD) upon university-aged women. This exploratory study was conducted using phenomenology, with heuristic inquiry as the guiding theoretical orientation. Seven women participated in an email interview and in a semistructured interview. The findings indicate that women with active IBD/IBS commonly experience an anxiety reaction, followed by an attack of illness. This attack then triggers a cascade of impact that negatively influences their emotional and physical well-being, ultimately affecting their overall quality of life. Health-care professionals can play an important role in minimizing the impact of IBD/IBS upon those affected, and possible interventions are suggested.

Multicenter study of gastroenterologists' ability to identify anxiety and depression in a new patient encounter and its impact on diagnosis

AIM

Although gastroenterologists are frequently exposed to psychopathology few data exist regarding their ability to accurately assess anxiety and depression or the impact of their perceptions of anxiety and depression on diagnostic decisions. The aims of this study were to determine gastroenterologists' ability to correctly identify anxiety and depression in patients with gastrointestinal symptoms and to determine whether gastroenterologist perceptions of anxiety and depression affected postvisit diagnosis.

METHODS

One hundred fifty-nine consecutive patients making their initial visit to 3 university outpatient clinics were evaluated by 38 gastroenterologists and completed Hospital Anxiety and Depression Scale. Gastroenterologists rated their perceptions of patient anxiety and depression on 100-mm visual analog scales and indicated whether they thought the patient was clinically anxious or depressed. On the basis of the gastroenterologists' postvisit diagnosis, patients were entered into functional gastrointestinal disorder (FGID; n=28), symptom-based (SB) diagnosis (n=45), or organic disease (OD; n=86) groups.

RESULTS

Anxiety and depression were present in 40% and 20% of patients, respectively. Gastroenterologists' categorization of patients as having clinically significant anxiety and depression were poor with positive predictive values of 0.52 and 0.26, respectively. Patients perceived as anxious by their gastroenterologist were more than twice as likely to receive a FGID diagnosis.

CONCLUSIONS

Anxiety and depression were prevalent in the study population yet gastroenterologists did not accurately detect these conditions. However, gastroenterologists were more than twice as likely to diagnose patients whom they perceived as anxious as having an FGID, highlighting a need for improved psychosocial assessment in clinical practice and education to diminish misattributions regarding FGID.

Characteristics of pain and stooling in children with recurrent abdominal pain

OBJECTIVE

To collect symptom data longitudinally from children with recurrent abdominal pain (RAP) and control (asymptomatic) children.

PATIENTS AND METHODS

Children with RAP (n = 77) and controls (n = 33) 7 to 10 years of age completed daily diaries for 2 weeks tracking pain frequency and severity, how often the pain interfered with activities, and stooling pattern.

RESULTS

RAP children reported a greater number of pain episodes and greater pain severity than control children. Pain commonly was reported to be in the periumbilical area and occurred evenly across the day in both groups. However, the pain interfered with activity more often in the RAP group. There was a positive relationship between pain and interference with activities. Both groups reported stool changes, but there were no differences between groups in stool character (eg, hard, mushy). For both groups, the presence of watery stool was related positively to pain. Of children with RAP, 65% could be categorized as having irritable bowel syndrome, whereas 35% were classifiable as having functional abdominal pain according to the pediatric Rome II criteria.

CONCLUSIONS

To the best of our knowledge, this is the first longitudinal report of symptoms in children with RAP compared with controls. These data demonstrate that there is considerable overlap between children with RAP and control children on a number of items commonly obtained in the history (eg, pain location, timing, stooling pattern). Most children with RAP could be characterized as having irritable bowel syndrome. The relationship between pain reports and interference with activities substantiates the need to deal specifically with the abdominal pain to decrease disability. The relationship between pain and watery stools requires further study.

A course of instruction for women with irritable bowel syndrome

OBJECTIVE

The aim of this study was to determine the effects a course of instruction about irritable bowel syndrome (IBS) might have on symptoms, psychological well-being, and medical care requirements in these patients.

METHODS

Twenty-nine women with IBS participated in a programme of instruction on medical care, physical activity, stress-management, diet and health insurance. The women completed the Gastrointestinal Symptom Rating Scale and the Psychological General Well-Being Index and provided information about their requirements of medical care before and after the course.

RESULTS

Twenty-three of the women included, completed the questionnaires at 12 months after the course. When comparing these values to those at baseline, there were improvements in abdominal pain (p < 0.037) and vitality (p < 0.045) as well as a reduction in the number of visits to physicians (p < 0.037) and dieticians (p < 0.042).

CONCLUSION

Information related to the disease, might help women with IBS to perceive less pain and more vitality and thereby experience a higher quality of life.

PRACTICE IMPLICATIONS

A course of instruction for patients with IBS may be of benefit for the patients, and could be a part of a multicomponent approach in the treatment of this patient group.

Epidemiology of the functional gastrointestinal disorders diagnosed according to Rome II criteria: an Australian population-based study

BACKGROUND

Population-based studies of the prevalence of all functional gastrointestinal disorders (FGID) using the Rome II criteria are lacking. It is also not certain whether subjects who meet the Rome II criteria for an FGID are different in terms of demographic and psychological characteristics from those subjects meeting exclusively the more restrictive Rome I criteria.

AIM

To determine whether using the more restrictive Rome I criteria would result in a more biologically determined group of FGID than when the Rome II is applied.

METHODS

Subjects included individuals aged 18 years and older (n = 1,225) from the Penrith population who were initially surveyed with the Penrith District Health Survey in 1997. Subjects were sent a self-report questionnaire that contained items on gastrointestinal symptoms applying the Rome II criteria. Subjects were also assessed on psychological and personality factors and on physical and mental functioning.

RESULTS

A total of 36.1% (n = 275) of respondents was diagnosed with an FGID according to Rome II criteria. The five most prevalent FGID were functional heartburn (10.4%), irritable bowel syndrome (8.9%), functional incontinence (7.6%), proctalgia fugax (6.5%) and functional chest pain (5.1%). Subjects meeting Rome II only criteria for FGID scored significantly higher on measures of psychological caseness and emotionality than Rome I only subjects, and these were independently associated with meeting Rome I only versus Rome II only criteria for FGID.

CONCLUSION

The Rome II criteria FGID are common and do not appear to identify a vastly different group of FGID sufferers compared with the earlier Rome I criteria.

Psychosocial assessment of functional gastrointestinal disorders in clinical practice

Functional gastrointestinal disorders are the most common conditions encountered in gastroenterology practice and are also commonly encountered in primary care. Psychosocial factors play an important role in these disorders (along with any chronic digestive disorder) by influencing healthcare seeking, illness behavior, symptom severity, quality of life, and digestive motility and sensation. Identification of relevant psychosocial factors in patients with chronic digestive disorders influences care and is a critical determinant of outcomes. This article provides a review of relevant psychosocial variables, assessment techniques, and therapeutic suggestions that can be of value in assessing patients with functional gastrointestinal disorders.

Towards A Better Understanding of Anxiety in Irritable Bowel Syndrome: A Preliminary Look at Worry and Intolerance of Uncertainty

Although it has been fairly well established that symptoms of anxiety are often present in patients with irritable bowel syndrome (IBS), less is known about the role of worry and intolerance of uncertainty in this population. This study investigates the relations among these variables in a sample of treatment-seeking IBS patients. Although the results are preliminary, worry does seem to predict gastrointestinal symptom severity and, when combined with a measure of current anxiety, accounts for almost 30% of the variance. Intolerance of uncertainty differentiated diarrhea-predominant IBS patients from constipation-predominant IBS patients. Earlier research has taken a psychiatric perspective on anxiety in IBS patients—the current study may provide some support for shifting our focus to the cognitive biases that may be operating in IBS patients, regardless of the presence of an anxiety disorder. Implications for a cognitive therapy approach to IBS treatment are discussed.

Psychiatric and psychological dysfunction in irritable bowel syndrome and the role of psychological treatments

Psychosocial variables play a substantial role in the IBS condition of many patients. Evaluating and addressing adverse psychosocial factors is important to achieve satisfactory clinical outcomes with those patients. This can be achieved efficiently through psychosocial interviewing, establishing a solid therapeutic relationship, and judicious and tactful application of psychotropic medications and psychological treatments. Success in address-ing psychosocial factors in clinical encounters benefits not only patients, but also the gastroenterologist through increased work satisfaction because of reduced difficulty and frustration in working with IBS patients.

Psychological well-being and symptoms in women with chronic constipation treated with sodium picosulphate

The use of sodium picosulphate has been restricted to a few weeks due to its potentially harmful effect on the colon. In spite of this restriction, however, many patients prefer this pharmaceutical drug. The authors have earlier studied the use of sodium picosulphate and found regular use leads to a moderate dose escalation. The aim of this study was to examine whether subjects who use laxatives containing sodium picosulphate differ in their psychological well-being and symptoms from subjects who use other laxatives, and to decide, on the basis of the results, how to use drugs containing sodium picosulphate. Eighty-six women, age 27-65 years, with chronic constipation were interviewed by two self-administered questionnaires: the Psychological General Well-Being Index (PGWB) and the Gastrointestinal Symptom Rating Scale (GSRS). Twenty-two of the subjects were interviewed a second time some months later after inclusion in a drug trial. Thirty-five women used sodium picosulphate regularly every week and 51 used other laxatives. Psychological well-being according to the PGWB was better for the subjects who used sodium picosulphate regularly than for those who used other laxatives (97 compared to 86, p, .017) This difference was due to less anxiety (p, .0001). There was no difference between the groups according to the GSRS. After inclusion in a drug trial, but before the introduction of the drugs, the group who did not use sodium picosulphate was remarkably improved with less anxiety, better self-control, and reduced abdominal pain and constipation. As the psychological well-being was better for the subjects who used sodium picosulphate, these drugs can be used when patients fail to respond to traditional therapies.

Self-management for women with irritable bowel syndrome

BACKGROUND & AIMS

A randomized clinical trial was used to test the effectiveness of an 8-session multicomponent program (Comprehensive) compared to a Brief (single session) version and Usual Care for women with irritable bowel syndrome.

METHODS

Menstruating women, ages 18-48 years, were recruited from a health maintenance organization as well as community advertisements. Psychiatric nurse practitioners delivered both programs. The primary outcomes were improved symptoms, psychological distress, health-related quality of life, and indicators of stress-related hormones. Outcome indicators were measured at 3 points: (1) immediately after the Comprehensive program or 9 weeks after entry into the Usual Care and Brief Self-Management groups, (2) at 6 months, and (3) at 12 months.

RESULTS

Compared to Usual Care, women in the Comprehensive program had reduced gastrointestinal symptoms, psychological distress indicators, interruptions in activities because of symptoms, and enhanced quality of life that persisted at the 12-month follow-up evaluation. Women in the Brief group also demonstrated statistically significant improvements in quality of life and smaller nonsignificant improvements in other outcome variables than observed in the Comprehensive group. There were no group differences in urine catecholamines and cortisol levels.

CONCLUSIONS

A comprehensive self-management program is an important therapy approach for women with irritable bowel syndrome. The Brief 1-session version is also moderately helpful for some women with IBS.

Irritable bowel syndrome in women: a common health problem

Irritable bowel syndrome is a common but complex problem that disproportionately affects women. Nurses are ideally situated to provide accurate information regarding the disorder and to provide symptom management. Currently, the diagnosis is based on the presence of abdominal pain and alterations in bowel habits. A multicomponent approach beginning with education and reassurance is more likely to be effective than one focused on a predominant symptoms (eg., constipation) alone. Building a therapeutic relationship with the patient over time will likely enhance the effectiveness of the prescribed therapy. Treatment paradigms that include new drugs that affect more than one symptom of IBS, along with nondrug therapies (eg, relaxation and cognitive behavioral strategies), will likely hold the greatest promise for management.

Psychosocial functioning and physical symptoms in heart failure patients: a within-individual approach

OBJECTIVE

Heart failure (HF) markedly diminishes an individual's quality of life. However, little is known about how psychosocial functioning is related to heart failure physical symptom expression (e.g., chest pain or heaviness, shortness of breath) on a day-to-day basis.

METHODS

Fifty-eight HF patients completed daily diaries that evaluated mood, social support, coping, and physical symptoms for 2 weeks.

RESULTS

After being prewhitened for serial dependencies, the data were entered into regression analyses to determine the concurrent and lagged relationships among them. Significant concurrent relationships were obtained between physical symptoms and depression, social conflict, positive and negative mood, and symptom-focused coping. Furthermore, negative mood and distraction coping predicted greater physical symptoms the next day, while action/acceptance coping predicted fewer physical symptoms the next day.

CONCLUSION

Our data provide evidence for an association between daily psychosocial functioning and HF physical symptoms. Implications for research and clinical work with HF patients are discussed.

Sense of coherence and quality of life in women with and without irritable bowel syndrome

BACKGROUND

Despite ongoing physical and psychological distress, little is known about sense of coherence (SOC) and holistic quality of life (QOL) in women with irritable bowel syndrome (IBS).

OBJECTIVES

The purposes of this study were to (a) describe and compare SOC and holistic QOL of women with and without IBS, and (b) examine the relationships among SOC, holistic QOL, and gastrointestinal (GI) and psychological distress symptoms.

METHOD

A two-group comparison design was used to test the study hypotheses that women with IBS would have lower SOC and holistic QOL than control women without IBS, and that SOC and holistic QOL would be inversely related to GI and psychological distress. A total of 324 women were studied (n= 235 with IBS, n= 89 controls). Measures included the 13-item SOC Questionnaire, Modified Flanagan QOL Scale, Bowel Disease Questionnaire, and Symptom-Checklist-90-R.

RESULTS

Both SOC and holistic QOL were lower in women with IBS (p <.001). Correlations between SOC and global distress, depression, anxiety, and somatization without GI symptoms were moderately and inversely related (r= -.64, -.64, -.53, and -.31, respectively; p <.001) in the total sample. Relationships between holistic QOL and psychological distress indicators were universally of lower magnitude (r= -.56 to -.27, p <.001). The only GI symptom indicator significantly related to SOC and holistic QOL was alternating constipation and diarrhea (tau= -.21 and -.17, respectively; p <.001).

DISCUSSION

Women with IBS have a reduced SOC and holistic QOL when compared to women without IBS. It remains to be determined whether interventions targeted at enhancing SOC and holistic QOL can impact the psychological distress associated with IBS.

Relationship between abdominal pain subgroups in the community and psychiatric diagnosis and personality. A birth cohort study

INTRODUCTION

It is unclear if there is a causal link between psychiatric disorders and unexplained chronic gastrointestinal (GI) symptomatology. The role of personality is also in dispute. We aimed to assess the association of these factors with functional GI symptoms in a birth cohort study.

METHODS

The Dunedin birth cohort is well characterised and has been followed-up prospectively to age 26 (n=980). Measured were upper and lower GI symptoms over the prior year at age 26 using a validated questionnaire, psychiatric diagnoses at ages 18 and 21 by standardised interview applying DSM-III-R criteria, and personality at age 18 using the Multidimensional Personality Questionnaire (MPQ). Natural symptom groupings were identified using factor analysis and k-means clustering. The association of these clusters and psychiatric diagnoses or personality was assessed by logistic regression.

RESULTS

The k-means analysis produced a six-cluster solution, which was made up of a health group, and five "disease" clusters defined by higher than average scores on a single symptom. A diagnosis of depression at age 18 or 21 years was associated with increases in the odds of 1.69 (95% CI: 1.27-2.25) for all GI, of 2.16 (95% CI: 1.12-4.16) for dysmotility and of 2.07 (95% CI: 1.13-3.80) for constipation, but not with the other clusters. Similar results were observed with respect to anxiety disorders for the odds of GI overall (OR=1.42, 95% CI: 1.01-1.99) and constipation (OR=2.11, 95% CI: 1.17-3.79). The personality subscales were not strongly linked; membership of "any" diseased cluster was associated with a reduced odds of being in the fourth quartile for the well-being scale (OR=0.64, 95% CI: 0.46-0.88) but increased odds of being in the fourth quartile for the social potency scale (OR=1.64, 95% CI: 1.18-2.28).

CONCLUSIONS

In a young adult community sample, unexplained GI symptoms appear to be linked to psychiatric disorders but personality differences were minimal.

Psychopathology in irritable bowel syndrome: support for a psychophysiological model

Previous research has established that patients with irritable bowel syndrome (IBS) frequently have comorbid psychiatric disorders. This study sought to establish if the timing of the onset of psychiatric disorders indicated that IBS was more likely to be caused by or more likely to cause psychological difficulties. Participants were 188 treatment-seeking IBS patients who were assessed for psychiatric diagnoses using a semistructured clinical interview. Timing of the onset of any lifetime psychiatric disorders was noted in an attempt to determine if psychiatric disorders were more likely to precede or follow the onset of IBS symptoms. Those participants that met criteria for an Axis I disorder sometime during their life were significantly more likely to develop an Axis I disorder before the onset of IBS symptoms. Anxiety disorders were the most likely disorder to develop before IBS. These results support the theory that psychiatric symptoms, especially anxiety, play a role in the development of IBS.

Impact of sex and gender on irritable bowel syndrome

Irritable bowel syndrome (IBS) is a common functional bowel disorder characterized by abdominal pain and change in defecation pattern. This review addresses the topic of possible sex (genetic, biological) and gender (experiential, perceptual) differences in individuals with and without IBS. Several observations make the topic important. First, there is a predominance of women as compared to men who seek health care services for IBS in the United States and other industrialized societies. Second, menstrual cycle-linked differences are observed in IBS symptom reports. Third, women with IBS tend to report greater problems with constipation and nongastrointestinal complaints associated with IBS. Fourth, serotonin (5-HT3) receptor antagonist and 5-HT4 partial agonist drugs appear to more effectively diminish reports of bowel pattern disruption in women with IBS as compared to men. This review examines sex and gender modulation of gastrointestinal motility and transit, visceral pain sensitivity, autonomic nervous system function, serotonin biochemistry, and differences in health care-seeking behavior for IBS.

Natural killer cell function and psychological distress in women with and without irritable bowel syndrome

The primary purpose of this exploratory study was to compare percentages of natural killer (NK) cells and activated NK and T cells, and both cytotoxic and in vitro cytokine production activity in women with and without symptomatic irritable bowel syndrome (IBS). A secondary purpose was to examine the relationships of psychological distress and low sense of coherence with immune function indicators and stress hormones. NK cell percentage and activity have been shown to vary in response to many psychological and physiological stressors. The authors compared 2 groups of women: symptomatic IBS (n = 12) and control (n = 12). Between-subject variability for all immune measures was large. The percentage of activated NK and Tcells was significantly lower in the IBS group compared to control (Mann-Whitney U = 30, P = 0.05). Relationships were significant between activated NK and T cell percentage and depression, anxiety, and overall distress (r = -0.54, -0.49, and -0.47, respectively, P < 0.03) and between interferon-gamma production and anxiety (r = -0.45, P < 0.03). There was a trend toward a positive relationship between sense of coherence and NK cytotoxicity (r = 0.39, P = 0.11). Thesefindings are important because they suggest that nursing interventions targeting ongoing physical and psychological distress might also be helpful in improving immune function.

Does a physically active lifestyle improve symptoms in women with irritable bowel syndrome?

It has been proposed that physical activity moderates physiological or psychological responses to chronic conditions. The purpose of this study was to determine if women with a chronic functional gastrointestinal (GI) disorder, irritable bowel syndrome, had less active lifestyles than healthy controls and to test whether active women with irritable bowel syndrome had less severe recalled or daily reports of GI, psychological, and somatic symptoms than inactive women with irritable bowel syndrome. Questionnaires were used to measure GI and psychological distress and somatic symptoms in 89 women who participated in this study. A daily symptom and activity diary was kept for one menstrual cycle. Women with irritable bowel syndrome were significantly less likely to be active (48%) than control women (71%) (X2 = 3.4, p = .05). Within the irritable bowel syndrome group, active women were less likely to report a feeling of incomplete evacuation following a bowel movement than inactive women (p < .04), yet active women did not have less severe recalled psychological or somatic symptoms than inactive women. Active women with irritable bowel syndrome reported less severe daily somatic symptoms, which were accounted for by a lower level of fatigue (p = .003), but not daily GI or psychological symptoms. These results suggest that physical activity may produce select symptom improvement in women with irritable bowel syndrome.

Irritable bowel syndrome. A survey of nurses' knowledge

Nurses in a variety of clinical settings are often involved in educating and managing patients with irritable bowel syndrome, though their knowledge and perceptions of irritable bowel syndrome are not well known. A national survey was undertaken as a part of a larger study of patients and healthcare providers to determine nurses' knowledge of irritable bowel syndrome, including diagnosis, etiology, disease impact, management, beliefs, and attitudes regarding irritable bowel syndrome. In addition, the nurses' perceptions of the effect of irritable bowel syndrome on the patient's lifestyle and the severity of symptoms were compared to those of irritable bowel syndrome patients. One hundred practicing registered nurses were randomly selected and then interviewed by telephone using a questionnaire. A random-digit dialing method was used to identify and recruit 1,014 women with irritable bowel syndrome. The majority of registered nurses interviewed (75%) felt that nurses played a moderate-to-major role in counseling patients with irritable bowel syndrome. Only 13%, however, were aware of the diagnostic criteria for irritable bowel syndrome. The majority of nurse subjects felt the current therapies for irritable bowel syndrome had limited effectiveness varying from 6-21% depending on the symptom being treated. Almost half of the nurses felt they had an important role in management of irritable bowel syndrome and that both they and their patients needed more education about irritable bowel syndrome. There was close agreement between the nurses and the patients with regard to the impact of irritable bowel syndrome. With increased public attention on irritable bowel syndrome as a common problem affecting women, there is a need for nurses working in a variety of settings to have increased knowledge regarding the syndrome. In this article, recommendations are made regarding how to increase nurses' knowledge about this common health problem.

A controlled, double-blind, randomized study on the efficacy of Lactobacillus plantarum 299V in patients with irritable bowel syndrome

BACKGROUND

Irritable bowel syndrome (IBS) is a widespread functional disorder of the digestive tract. Its aetiology is unknown and therapeutic options are limited. Recent reports suggest that probiotics may have a role in regulating the motility of the digestive tract.

AIM

To assess the efficacy of Lactobacillus plantarum 299V (LP299V) in patients with IBS.

PATIENTS AND METHODS

Forty patients were randomized to receive either LP299V in liquid suspension (20 patients) or placebo (20 patients) over a period of 4 weeks. Clinical examination was performed at baseline and at the end of the study. Additionally, patients assessed their symptoms by applying a scoring system.

RESULTS

All patients treated with LP299V reported resolution of their abdominal pain as compared to 11 patients from a placebo group (P = 0.0012). There was also a trend towards normalization of stools frequency in constipated patients in six out of 10 patients treated with LP299V compared with two out of 11 treated with placebo (P = 0.17). With regards to all IBS symptoms an improvement was noted in 95% of patients in the LP299V group vs 15% of patients in the placebo group (P < 0.0001).

CONCLUSIONS

LP299V seems to have a beneficial effect in patients with IBS. Further studies on larger cohorts of patients and with longer duration of therapy are required in order to establish the place of L. plantarum in the treatment of IBS.

Gender differences and hormonal modulation in visceral pain

Women seek healthcare and are diagnosed more frequently with chronic somatic and visceral pain conditions relative to men. These conditions tend not to be life-threatening disorders, but rather ones that decrease people's quality of life, impinge on work and recreational activities, and increase healthcare resource utilization. With increased awareness of basic gender differences in biology and responsiveness to therapies, there has been renewed interest in factors which may account for the gender disparity in chronic visceral pain conditions. Basic and clinical evidence primarily from patients with irritable bowel syndrome has provided initial insights into visceral pain sensitivity, perception, and responsitivity.

Irritable bowel syndrome: causes and treatment

Irritable bowel syndrome (IBS) is a common health care problem worldwide. In the United States and Northern European countries, more women than men seek health care services for IBS. Nurses are often called on to help women with IBS manage their symptoms. This article reviews the literature related to gender differences in diagnosis, symptoms (gastrointestinal, somatic, and disturbed sleep), and physiologic and psychological factors as well as current pharmacologic therapies used in the management of IBS.

Evolving concepts in irritable bowel syndrome

Converging evidence from investigations of the peripheral and central aspects of bidirectional brain-gut interactions is beginning to shape a pathophysiological model of irritable bowel syndrome (IBS) and related functional gastrointestinal (GI) disorders. This neurobiological model includes alterations in autonomic, neuroendocrine, and pain modulatory mechanisms. The frequent association of IBS and other functional GI disorders with co-morbid affective disorders and temporal association of symptom exacerbation with psychosocial or physical stressors are consistent with alterations in the neurobiological mechanisms underlying the central stress response. Renewed interest in drug development for IBS has resulted in development of instruments for the better assessment of the impact of global symptoms on quality of life and in the development of candidate compounds undergoing clinical evaluation.