Nutritional status, perceived body image and eating behaviours in adults with cystic fibrosis

Nutrition and behavioral health in cystic fibrosis: Eating and body image

People with CF (pwCF) are at high risk for malnutrition, making nutritional management a critical aspect of CF care. Over the past several decades, optimal nutritional status for pwCF has been defined by body mass index (BMI) based on evidence linking suboptimal BMI to decreased lung function and life expectancy, although more recent changes in CF care may also bring changes to how nutritional health is defined. The historical focus on weight, BMI, and nutrition as key parts of multidisciplinary CF care starting at an early age places pwCF at increased risk for body image concerns and disordered eating. The landscape of CF care is evolving with the approval of highly effective modulator therapies (HEMT) and resulting improvements in growth; however, issues related to body image and eating remain important to consider, especially as past difficulties gaining weight may shift to discomfort with one's weight gain and/or physical appearance. This review aims to describe how body image concerns and disordered eating occur in pwCF across the lifespan; to discuss evidence-based approaches to addressing these concerns; and to identify future directions for research and clinical practice in assessing and treating eating disorders and body image concerns in this population.

Mindfulness-based interventions for body image dissatisfaction among clinical population: A systematic review and meta-analysis

PURPOSE

Mindfulness-based interventions (MBIs) are well-validated interventions to enhance the favourable body image of individuals. Despite their wide application, the efficacy of MBIs in reducing body image dissatisfaction (BID) among various clinical populations remains unclear. This study aims to expand the literature on MBIs for BID and identify effective types of MBIs for reducing BID in diverse clinical populations for future research and practice.

METHODS

A systematic search for studies published in English on the effectiveness of MBIs for BID among the clinical population was done on APA PsycNet, PubMed, Science Direct, Web of Science and Google Scholar databases in August 2023. Of the 1962 articles initially identified, 17 were found eligible and evaluated based on the JBI checklist.

RESULTS

Random effects meta-analyses on six MBIs revealed their effectiveness in reducing BID among the clinical population (SMD = -.59 and 95% CI = -1.03 to -.15, p = .009), with Acceptance and Commitment Therapy (ACT) (SMD = -1.29, 95% CI = -2.06 to -.52, p = .001) and My Changed Body (MyCB) (SMD = -.24, 95% CI = -.46 to -.01, p = .04) reporting significant effect sizes. Among the patients with breast cancer, MyCB (SMD = -.24, 95% CI = -.46 to -.01, p = .04) showed a significant effect size.

CONCLUSIONS

MBIs appear to be promising interventions in reducing BID among the clinical population. However, findings should be considered cautiously due to the possible publication bias, high heterogeneity and fewer available studies.

Olfaction, body mass index, and quality of life with cystic fibrosis combination therapy

BACKGROUND

Triple-combination therapy of elexacaftor-tezacaftor-ivacaftor (ETI) has been shown to reduce morbidity and mortality in people with cystic fibrosis (PwCF). Although patient body mass index (BMI) favorably increases with ETI treatment, factors contributing to this improvement are poorly characterized. Olfaction contributes to appetite stimulation and anticipation of eating, where higher rates of olfactory impairment (OI) in PwCF may contribute to malnutrition and BMI instability in this population.

METHODS

The authors performed a prospective cohort study analyzing 41 CF patient responses to the Cystic Fibrosis Questionnaire-Revised (CFQR) and the 22-Item Sino-Nasal Outcome Test (SNOT-22) and used generalized estimating equations to understand the change in survey variables from being untreated (baseline) to undergoing 3 months of ETI therapy (follow-up).

RESULTS

Patients reported significant improvement in their sense of smell at follow-up (p = 0.0036). Their improvements in sense of smell were not confounded by changes in rhinologic or extranasal rhinologic symptoms. Self-reported quality of life (QoL) improved after 3 months of ETI therapy (p = < 0.0001) as did BMI (p = < 0.0001), but improved sense of smell did not independently mediate these changes in QoL and BMI.

CONCLUSION

Our results support the impression that ETI therapy improves CF-associated rhinologic symptoms and reverses OI, while contributing to improvement in rhinologic QoL. Sense of smell is not an independent mediator of improved QoL and BMI in this population, suggesting that other factors may have a stronger role in these realms. However, given the subjective improvement in sense of smell, additional evaluation of OI using psychophysical chemosensory assessment will clarify the connection between olfaction, BMI, and QoL in PwCF.

A Gastroenterologist's Guide to Care Transitions in Cystic Fibrosis from Pediatrics to Adult Care

Cystic Fibrosis is a chronic disease affecting multiple systems, including the GI tract. Clinical manifestation in patients can start as early as infancy and vary across different age groups. With the advent of new, highly effective modulators, the life expectancy of PwCF has improved significantly. Various GI aspects of CF care, such as nutrition, are linked to an overall improvement in morbidity, lung function and the quality of life of PwCF. The variable clinical presentations and management of GI diseases in pediatrics and adults with CF should be recognized. Therefore, it is necessary to ensure efficient transfer of information between pediatric and adult providers for proper continuity of management and coordination of care at the time of transition. The transition of care is a challenging process for both patients and providers and currently there are no specific tools for GI providers to help ensure a smooth transition. In this review, we aim to highlight the crucial features of GI care at the time of transition and provide a checklist that can assist in ensuring an effective transition and ease the challenges associated with it.

Psychometric properties of the Cystic Fibrosis Eating Attitudes and Behaviours scale (CFEAB) in an adult population

OBJECTIVES

Individuals with Cystic Fibrosis (CF) may be at an increased risk of developing a range of eating difficulties. Scales designed to measure disordered eating in the general population do not cover CF-specific behaviours resulting in a knowledge gap. The CFEAB was developed as a CF-specific measure assessing eating behaviours and attitudes however little evidence exists regarding its psychometric quality. The aim of this cross-sectional study was to provide a robust assessment of its internal consistency, structural validity, and criterion validity.

METHODS

One-hundred and thirty-two people with CF completed self-report scales pertaining to mental health, eating disorders, and the Cystic Fibrosis Eating Attitudes and Behaviours (CFEAB).

RESULTS

Results of exploratory structural equation modelling indicated that a three-factor structure produced good fit with the 24-item CFEAB but a purified 12-item CFEAB displayed superior fit and internal consistency. Also, the 12-item scale predicted significant amounts of variance for anxiety, depression, and eating disorders showing enhanced relevance for clinical use. Conclusions These findings add emphasis to the importance of the validation and development of CF-specific measures and the possible inclusion at clinics to help improve CF patient care.

Eating disorders in adolescents and young adults with cystic fibrosis

INTRODUCTION

There is evidence for increased risk of eating disorders in individuals with diet-treated chronic illnesses, however, data in patients with cystic fibrosis (CF) is less clear. No studies have evaluated avoidant/restrictive food intake disorder (ARFID) in the CF population. We investigated the prevalence of eating disorders, including ARFID, in adolescents and young adults with CF.

METHODS

Patients with CF aged 14-35 years were recruited to complete three validated surveys: (1) Eating Disorder Examination Questionnaire (EDE-Q), (2) Nine-Item Avoidant/Restrictive Food Intake Disorder Scale (NIAS), and (3) Cystic Fibrosis Questionnaire-Revised (CFQ-R). Univariate linear regression analysis identified baseline risk factors associated with these survey scores. Variables with univariate p &lt; 0.20 were considered for inclusion in a multivariable linear regression model. Backwards stepwise linear regression was used to identify the final model.

RESULTS

A total of 52 patients enrolled. The prevalence of a positive screen on the EDE-Q was 9.6%, and on the NIAS was 13.5%. The CFQ-R eating and weight subscales were associated with scores on the EDE-Q, and CFQ-R eating subscale and being dF508 homozygous were correlated with the NIAS total score.

DISCUSSION

A clinically significant number of participants screened positive for eating disorders on the EDE-Q and NIAS. Scores on the eating and weight scales of the CFQ-R were associated with the scores on these surveys. Further work is needed to better understand the optimal way to use such tools to screen and treat for eating disorders in individuals with CF.

Eating Disorders and Disordered Eating Behaviors in Cystic Fibrosis: A Neglected Issue

As with the majority of chronic diseases having specific nutrition recommendations, in cystic fibrosis (CF), the emphasis placed on patients regarding their diet and ideal body weight status often increases the risk of developing disordered eating behaviors and by inference, eating disorders (EDs). Body weight appears to be an important concern for patients with CF, with many patients struggling to lose weight. Between sexes, women appear more preoccupied with dieting compared to men, but exhibit a better body image, mainly due to their preference for a lower weight. Several comorbidities appear to change these dynamics, and visibly apparent factors, including scars, ports, and tubes, and the need for supplementary oxygen supply, may also influence body image perception. Disordered eating is usually initiated during a bout of pulmonary infection, with the patient feeling unwell to eat. Regarding the prevalence of EDs, research appears conflicting on whether it is higher among individuals with a CF diagnosis or not. As for comorbidities, anxiety and depression consist of the most common psychiatric diagnoses in CF, also greatly prevalent in EDs. Despite the plethora of studies, non-specific CF tools, small samples, and lack of data regarding important outcomes, including lung health, indicate the need for more research.

Understanding Cystic Fibrosis Comorbidities and Their Impact on Nutritional Management

Cystic fibrosis (CF) is a chronic, multisystem disease with multiple comorbidities that can significantly affect nutrition and quality of life. Maintaining nutritional adequacy can be challenging in people with cystic fibrosis and has been directly associated with suboptimal clinical outcomes. Comorbidities of CF can result in significantly decreased nutritional intake and intestinal absorption, as well as increased metabolic demands. It is crucial to utilize a multidisciplinary team with expertise in CF to optimize growth and nutrition, where patients with CF and their loved ones are placed in the center of the care model. Additionally, with the advent of highly effective modulators (HEMs), CF providers have begun to identify previously unrecognized nutritional issues, such as obesity. Here, we will review and summarize commonly encountered comorbidities and their nutritional impact on this unique population.

Perception, experience and relationship with food and eating in adults with cystic fibrosis

BACKGROUND

Cystic fibrosis (CF) is a multisystem disorder that primarily affects the respiratory and gastrointestinal systems. Dietetic therapy is a prominent aspect of CF management, with patients receiving nutritional surveillance and advice throughout their lifetime. The present study aimed to explore the perception, experience and relationship with food and eating in adults with CF.

METHODS

Semi-structured telephone interviews were conducted with nine adults with CF. Interviews were audio-recorded, transcribed verbatim and analysed thematically following a previously described six-phase procedure.

RESULTS

Six themes were identified: 'Sustained influence of eating experience in childhood', 'Eating for health: weight gain to prevent infection', 'Balancing health and body image', 'I'm different,' 'Strategies for managing food intake' and 'Support from family, friends and the CF Team'. Participants talked about the range of strategies they employ, with a focus on eating well and choosing high calorie foods being an important part of their health management strategy. This is driven by the belief that a good weight ensures better health and perceiving eating as a treatment.

CONCLUSIONS

This group felt able to cope well and had developed strategies to manage their dietary needs. Food experience was variable throughout their lifetime, with childhood experience having a sustained effect on adult eating behaviour. Weight gain, body image and dietary health implications are considerable concerns for patients. New CF transmembrane modulator treatments (CFTR modulators) are changing the dietary needs of this population. It is important that these issues are explored during dietetic consultations to identify barriers to dietary change.

Eating disorders and body image in cystic fibrosis

Eating disorders and disturbed body image have been reported in individuals with cystic fibrosis (CF) and may contribute to poor weight gain, reduced lung function and increased mortality. CF individuals often look and feel different from their peers and bear the additional burden of body-altering side effects of treatment. As a result, the impact of disorders such as binge eating, anorexia nervosa, and bulimia nervosa may adversely affect the social, emotional, and physical development of those with CF.

Multiple risk factors may contribute to the development of an eating disorder in CF. Growth failure is affected by the physical impairments of CF, including pancreatic insufficiency, high energy demands, respiratory infections, and delayed and stunted growth and puberty. Psychological factors, such as CF associated depression and anxiety, intense focus on BMI, lack of control in a chronic disease, and preoccupation with morbidity and mortality, likely further contribute. Exercise inefficiency, secondary to poor lung function, low BMI and pulmonary exacerbations, and the potential for medication manipulation are also additional risk factors.

The intense scrutiny around BMI may lead to a poor relationship with food, including disordered eating habits, abnormal mealtime behaviors, and stressful caregiver-patient interactions regarding meals. This further contributes to a discrepancy between ideal CF nutritional standards and the reality of the challenges of appropriate daily energy intake for an individual with CF.

It is imperative that CF providers are equipped to identify potential eating disorders and disturbed body image in their CF patients. Improved screening and monitoring practices should be developed and implemented, with multidisciplinary support from all CF care team members, including dietitians, mental health professionals, and social workers, to best support holistic care and optimize outcomes. Increased attention to these concerns may help reduce CF related morbidity and mortality.

Exploring Associations Between Self-Compassion, Self-Criticism, Mental Health, and Quality of Life in Adults with Cystic Fibrosis: Informing Future Interventions

Self-compassion is increasingly recognised as an important and beneficial factor in quality of life and mental health-related research, but research within the adult cystic fibrosis (CF) population is scarce. In a cross-sectional study, 114 (56 female, 58 male) adults with CF completed and returned a series of validated questionnaires that assessed CF-related quality of life, negative emotional states (depression, anxiety and stress), self-compassion, and self-criticism. Quality of life and self-compassion were positively correlated, and each in turn were inversely correlated with negative emotional states and self-criticism. Negative emotional states correlated positively to self-criticism. Self-compassion and/or self-criticism moderated ten relationships between various sub-domains of quality of life and negative emotions. Psychological interventions that increase self-compassion may be beneficial for enhancing mental health and quality of life for adults with CF.

Challenges Faced by Women with Cystic Fibrosis

Women with cystic fibrosis (CF) face several unaddressed concerns related to their health. These areas of concern include explanations and guidance on a sex disparity in outcomes, timing of puberty, effects of contraception, prevalence of infertility and impact of pregnancy, and prevention of urinary incontinence and osteoporosis. These understudied topics leave women with numerous unanswered questions about how to manage sexual and reproductive health in the setting of CF. Because people with CF are living longer and healthier lives, there is an increasing awareness of these important aspects of care and multiple ongoing studies to address these understudied topics.

Hospitalization rates among patients with cystic fibrosis using pancreatic enzyme replacement therapy

We investigated the relationship between self-reported adherence to pancreatic enzyme replacement therapy (PERT), nutritional status, and all-cause hospitalization in cystic fibrosis (CF) patients with a record of PERT use. Association of self-reported annual PERT use rate (adherence) with annual hospital admission rate (HAR) and annual total hospital nights (THNs) were analyzed for 5301 children (2000–2012) and 13,989 adults (2000–2013) from the CF Foundation Patient Registry. Multivariate linear regression was used to determine the association of HAR and THN with mean annual PERT use rate, cumulative PERT use rate, mean body mass index (BMI) (adult) or BMI percentile (pediatric), age, and sex. The median annual PERT use rate was 87% in children and 80% in adults. Statistically, higher annual PERT use, longer cumulative PERT, and higher BMI percentile (children) or BMI (adults) were significantly (p < 0.0001) associated with lower annual HAR and fewer annual THN in children and adults. Female sex was associated with higher annual HAR and more annual THN in children and adults (p < 0.05). Results indicate self-reported adherence to PERT, increased BMI, and male sex were associated with fewer hospital admissions and annual hospital nights in CF patients.

Mindfulness moderates the relationship between emotional eating and body mass index in a sample of people with cystic fibrosis

PURPOSE

Self-regulation in eating is significant for enhancing life expectancy of people with cystic fibrosis (CF), but research with this population is scarce.

METHODS

In a cross-sectional study, adults with CF completed a number of psychometric scales exploring typical eating behaviours that may increase calorific intake including motivations to eat palatable foods and scales that may be associated with decreased calorific intake: mindfulness, mindful eating and self-compassion.

RESULTS

Findings suggested that motivations to eat palatable foods and eating behaviours correlate with higher BMI, while mindfulness, mindful eating and self-compassion did not reach significance. Mindfulness and mindful eating moderated the relationship between emotional eating and BMI, while self-compassion did not moderate this relationship.

CONCLUSIONS

There is a need to develop healthy and effective means of enhancing calorific intake, where this is indicated, adapting mindful eating principles to focus on increasing both self-regulation and pleasure in eating while reducing emotional eating may be one means of doing this.

LEVEL OF EVIDENCE

Level V, cross-sectional descriptive study.

Reciprocal Links Between Physical Health and Coping Among Adolescents With Cystic Fibrosis

OBJECTIVE

Adolescents with cystic fibrosis (CF) often face a unique set of difficulties and challenges as they transition to adulthood and autonomy while also managing a progressive illness with a heavy treatment burden. Coping styles have been related to changes in physical health among youth with chronic illness more generally, but the directionality of these links has not been fully elucidated. Therefore, the objective of this study was to evaluate bidirectional links between coping styles and physical health indicators among adolescents with CF over time.

METHODS

Adolescents (N = 79, 54% female) recruited from inpatient and outpatient CF clinics at two sites completed questionnaires assessing secular and religious/spiritual coping styles at two time points (18 months apart, on average). Health indicators including pulmonary functioning, nutritional status, and days hospitalized were obtained from medical records.

RESULTS

More frequent hospitalizations predicted lower levels of adaptive secular coping over time. However, poorer pulmonary functioning predicted higher levels of positive religious/spiritual coping. The number of days hospitalized was related to adaptive secular coping and negative religious/spiritual coping.

CONCLUSIONS

Among youth with CF, physical health functioning is more consistent in predicting coping strategies than the reverse. Poorer pulmonary functioning appears to enhance adaptive coping over time, suggesting resilience of adolescents with CF, while more frequent hospitalizations may inhibit the use of adaptive coping strategies. Findings support the use of interventions aimed at promoting healthy coping among hospitalized adolescents with CF.

The Role of Body Image on Psychosocial Outcomes in People With Diabetes and People With an Amputation

Introduction

Research indicates that body image disturbance is associated with poorer psychosocial outcomes for individuals with physical health conditions, with poorest body image reported for individuals with visible bodily changes. Using White's (2000) theoretical model of body image the present paper aimed to examine the nature of these relationships in two distinct groups: individuals with an amputation and individuals with diabetes. It was hypothesized that body image disturbance would be associated with psychosocial outcomes and would mediate the relationships between self-ideal discrepancy and personal investment in psychosocial outcomes.

Methods

Individuals with diabetes (N = 212) and individuals with an amputation (N = 227) provided details regarding their medical condition, and completed measures assessing body image, investment, self-ideal discrepancy, depression, anxiety, and quality of life. Structural equation and invariance modeling were used to test the model paths and the invariance of the model.

Results

As hypothesized, body image disturbance was found to mediate the relationships between personal investment and psychosocial outcome, and between self-ideal discrepancy and psychosocial outcome. The predicted paths were invariant across groups, although the model accounted for more variance in people with an amputation than people with diabetes.

Conclusion

Body image disturbance, personal investment, and self-ideal discrepancy are important factors contributing to psychosocial outcome for individuals with diabetes and individuals with an amputation. These findings not only confirm the validity of the model in these two groups, but they emphasize the importance of targeting body image in future psychological interventions for individuals with a health condition.

Nutrition: Prevention and management of nutritional failure in Cystic Fibrosis

Close monitoring of nutritional status is critical to the overall health of a patient with CF. As part of routine CF care, measurement of weight and height (and calculation of weight/length or BMI as appropriate) should be performed and analyzed at each visit. Early recognition of nutritional risk is imperative and evaluation with a multidisciplinary team should be performed to assess for caloric intake, caloric malabsorption, and other causes of poor weight gain and growth. Many tools are available to use for intervention, including oral supplementation, behavioral interventions, medications, nutritional therapies, and enteral tube feeding.

Patient and Provider Perspectives on Communication About Body Image With Adolescents and Young Adults With Cystic Fibrosis

Objective

This mixed-methods study examined perspectives of adolescents and young adults (AYAs) with cystic fibrosis (CF) and health care providers on body image communication.

Methods

Interviews and questionnaires were completed by 20 AYAs and 28 providers.

Results

Although 85% of patients reported they had never had a body image conversation with a health care provider, 74% of providers reported discussing this topic with patients. Patients and providers described body image as an important issue, which should be discussed comfortably and supportively. However, patients often preferred to discuss body image as a distinct topic, separate from physical health, whereas providers preferred integrating body image conversations within weight- and health-based discussions.

Conclusions

Body image is an important topic for AYAs with CF that often goes unaddressed or addressed in ways that are less preferred by patients. Providers should reduce barriers to effective communication about this important topic, particularly through increased awareness of AYA preferences.

Anorexia nervosa in cystic fibrosis

This article explores the challenges associated with diagnosing and managing eating disorders such as anorexia nervosa amongst adolescents and adults with cystic fibrosis. It reviews the known risk factors, generic verses disease specific eating disorder risk screening tools and considers the ethical dilemmas associated with critically low body mass indices. A case review is included to illustrate the complexities of managing both conditions in the context of declining respiratory function.

A qualitative investigation of eating difficulties in adolescents with chronic fatigue syndrome/myalgic encephalomyelitis

BACKGROUND

An estimated 10% of children and adolescents with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) experience eating difficulties; however, little is known about why these difficulties develop, what the impact is or how to manage them.

METHODS

Semi-structured interviews were conducted with adolescents (aged 12-17 years) attending a specialist service who have a primary diagnosis of CFS/ME and experience nausea, abdominal pain and/or eating difficulties. A total of 11 adolescents were interviewed (eight female, mean age: 15 years). Transcripts were analysed thematically using techniques of constant comparison which commenced soon after data collection and informed further interview protocols.

RESULTS

Adolescents perceived their eating difficulties were caused by abdominal symptoms, being too fatigued to eat and changes to their senses of taste and smell. Some of the adolescents recognised how their eating difficulties were exacerbated and maintained by psychological factors of low mood and anxiety. The adolescents eating difficulties had a negative impact on their weight, fatigue, socialising and family life. They perceived helpful interventions to include modifying their diets, families adjusting and also medical interventions (e.g. medication). Adolescents identified that early education and support about diet and eating habits would have been helpful.

CONCLUSIONS

If adolescents diagnosed with CFS/ME develop eating difficulties, this has a significant impact on their quality of life, illness and on their families. Not eating increases fatigue, low mood and anxiety which further exacerbates the eating difficulties. Clinicians should screen for eating difficulties in those with symptoms of nausea and abdominal pain, warn adolescents and their families of the risk of developing eating difficulties and provide interventions and support as early as possible.

Gender Differences in Clinical Presentations of Cystic Fibrosis Patients in Azeri Turkish Population

BACKGROUND

Cystic fibrosis (CF) is an autosomal recessive disorder with several clinical presentations. This study was undertaken in the Azeri Turkish population in Iran, to investigate gender differences in the age at onset and diagnosis, age of death, and duration of illness of CF.

METHODS

The data of 331 CF patients from 2001 to 2015 was surveyed. Parameters including age, sex, ΔF508 mutation, age at onset, age at diagnosis, age of death and clinical presentations were evaluated for both sexes, using descriptive analysis. The association of gender with these variables was studied using logistic regression, chi-square test and Mann-Whitney U test by SPSS version 18. Odds ratio with a confidence interval of 95% and p≤0.05 was considered statistically significant.

RESULTS

The study included 191 males (57.7%) and 140 females (42.3%), all showing statistically significant difference (p<0.001). Age duration differed between genders. Male and female patients were further under 9 and 4 years, respectively. The occurrence of ΔF508 mutation was 0.51 times more in females than in males. Age, diagnosis and sex were closely associated: males were diagnosed at a significantly later age than females (p=0.05). While this compression performed based on clinical presentations, males with respiratory disease had a later median age at diagnosis than females at lifespan (p=0.001). The risk of infertility in males was approximately two times greater than in females (p=0.02).

CONCLUSION

These findings indicate gender differences in CF patients. Future studies are needed to establish other differences and evaluate the causes for the gender variations.

The Neural Bases of Disgust for Cheese: An fMRI Study

The study of food aversion in humans by the induction of illness is ethically unthinkable, and it is difficult to propose a type of food that is disgusting for everybody. However, although cheese is considered edible by most people, it can also be perceived as particularly disgusting to some individuals. As such, the perception of cheese constitutes a good model to study the cerebral processes of food disgust and aversion. In this study, we show that a higher percentage of people are disgusted by cheese than by other types of food. Functional magnetic resonance imaging then reveals that the internal and external globus pallidus and the substantia nigra belonging to the basal ganglia are more activated in participants who dislike or diswant to eat cheese (Anti) than in other participants who like to eat cheese, as revealed following stimulation with cheese odors and pictures. We suggest that the aforementioned basal ganglia structures commonly involved in reward are also involved in the aversive motivated behaviors. Our results further show that the ventral pallidum, a core structure of the reward circuit, is deactivated in Anti subjects stimulated by cheese in the wanting task, highlighting the suppression of motivation-related activation in subjects disgusted by cheese.

ESPEN-ESPGHAN-ECFS guidelines on nutrition care for infants, children, and adults with cystic fibrosis

BACKGROUND

Malnutrition is both a frequent feature and a comorbidity of cystic fibrosis (CF), with nutritional status strongly associated with pulmonary function and survival. Nutritional management is therefore standard of care in CF patients. ESPEN, ESPGHAN and ECFS recommended guidelines to cover nutritional management of patients with CF.

METHODS

The guidelines were developed by an international multidisciplinary working group in accordance with officially accepted standards. The GRADE system was used for determining grades of evidence and strength of recommendation. Statements were discussed, submitted to Delphi rounds, reviewed by ESPGHAN and ECFS and accepted in an online survey among ESPEN members.

RESULTS

The Working Group recommends that initiation of nutritional management should begin as early as possible after diagnosis, with subsequent regular follow up and patient/family education. Exclusive breast feeding is recommended but if not possible a regular formula is to be used. Energy intake should be adapted to achieve normal weight and height for age. When indicated, pancreatic enzyme and fat soluble vitamin treatment should be introduced early and monitored regularly. Pancreatic sufficient patients should have an annual assessment including fecal pancreatic elastase measurement. Sodium supplementation is recommended and a urinary sodium:creatinine ratio should be measured, corresponding to the fractional excretion of sodium. If iron deficiency is suspected, the underlying inflammation should be addressed. Glucose tolerance testing should be introduced at 10 years of age. Bone mineral density examination should be performed from age 8-10 years. Oral nutritional supplements followed by polymeric enteral tube feeding are recommended when growth or nutritional status is impaired. Zinc supplementation may be considered according to the clinical situation. Further studies are required before essential fatty acids, anti-osteoporotic agents, growth hormone, appetite stimulants and probiotics can be recommended.

CONCLUSION

Nutritional care and support should be an integral part of management of CF. Obtaining a normal growth pattern in children and maintaining an adequate nutritional status in adults are major goals of multidisciplinary cystic fibrosis centers.

Association Between Outcomes and Demographic Factors in an Azeri Turkish Population With Cystic Fibrosis: A Cross-Sectional Study in Iran From 2001 Through 2014

Background

Outcomesforcystic fibrosis patients are improving rapidly. The demographic factors are notable variables inoutcomes, which can be evaluated and modified.

Objectives

This study was designed to investigate the association between outcome and demographic factors in patients with cystic fibrosis.

Patients and Methods

This was a cross-sectional study and data were gathered for 331 patients using the census method, from March 2001 to September 2014 in Iran. Data was analyzed using logistic regression analysis, chi-square test, and independent sample t test using SPSS 18. Odds ratio with confidence intervals of 95% and P < 0.05 were considered significant.

Results

There were 85 (25.7%) deceased patients and 246 (74.3%) living patients at the time of the study. Of the 246 living CF patients, 202 (82.2%) were less than nine years of age, and 77 (90.6%) out of the 85 deceased CF patients had died younger than four years of age. There was a significant difference between outcome and location of residence. The risk of mortality was 50% less in urban patients than in rural patients (P = 0.03). The risk of mortality was approximately two times higher in patients with a positive family history than in those with a negative family history (P = 0.02). The proportion of mortality was approximately two times, or 94%, higher for those in a consanguineous marriage than for those in a non-consanguineous marriage (P = 0.01).

Conclusions

The results demonstrated that the mortality rate was higher in CF patients with a positive family history, a consanguineous marriage, and residence in a rural area. Therefore, demographic factors play an important role in the outcome of cystic fibrosis. Unfortunately, these parameters, which can be managed easily and with low cost, have been overlooked.

Longitudinal impact of demographic and clinical variables on health-related quality of life in cystic fibrosis

OBJECTIVES

The insights that people with cystic fibrosis have concerning their health are important given that aspects of health-related quality of life (HRQoL) are independent predictors of survival and a decrease in lung function is associated with a decrease in HRQoL over time. Cross-sectional data suggest that key variables, other than lung function, are also associated with HRQoL--although study results are equivocal. This work evaluates the relationship between these key demographic and clinical variables and HRQoL longitudinally.

DESIGN

Longitudinal observational study. Observations were obtained at seven time points: approximately every 2 years over a 12-year period.

SETTING

Large adult cystic fibrosis centre in the UK.

PARTICIPANTS

234 participants aged 14-48 years at recruitment.

OUTCOME MEASURE

Nine domains of HRQoL (Cystic Fibrosis Quality of Life Questionnaire) in relation to demographic (age, gender) and clinical measures (forced expiratory volume in 1 s, (FEV1)% predicted, body mass index (BMI), cystic fibrosis-related diabetes, Burkholderia cepacia complex, totally implantable vascular access device, nutritional and transplant status).

RESULTS

A total of 770 patient assessments were obtained for 234 patients. The results of random coefficients modelling indicated that demographic and clinical variables were identified as being significant for HRQoL over time. In addition to lung function, transplant status, age, having a totally implantable vascular access device, cystic fibrosis-related diabetes, BMI and B. cepacia complex impacted on many HRQoL domains longitudinally. Gender was important for the domain of body image.

CONCLUSIONS

Demographic and changes in clinical variables were independently associated with a change in HRQoL over time. Compared with these longitudinal data, cross-sectional data are inadequate when evaluating the relationships between HRQoL domains and key demographic and clinical variables, as they fail to recognise the full impact of the CF disease trajectory and its treatments on quality of life.

Self-esteem and its relationship to mental health and quality of life in adults with cystic fibrosis

Research from the general population indicates an important role for self-esteem in mental health, but limited research in this area exists in the cystic fibrosis (CF) literature. This study aimed to explore the predictive value of self-esteem and health-related quality of life (HRQoL) in mental health symptoms in adults with CF. Seventy-four participants, recruited online, completed the Clinical Outcomes in Routine Evaluation-Outcome Measure 34 (CORE-OM), Rosenberg Self-esteem Scale and Cystic Fibrosis Questionnaire-Revised (CFQ-R). Comparably high levels of self-esteem were found, but HRQoL was lower than previous research. Thirty percent of participants scored within the clinical range for mental health difficulty. Hierarchical regression, controlling for gender, explored the value of four CFQ-R subscales (physical, social, emotional and role functioning) and self-esteem in predicting CORE-OM total score. Gender accounted for 8.2% of the variance in mental health scores while the five independent variables accounted for a further 73.0% of variance. Of the five variables, CFQ-R emotional functioning and self-esteem were significant predictors of mental health symptoms. Results are discussed in relation to clinical implications and potential uses for internet technologies to promote socialisation.

Enteral tube feeding in adults with cystic fibrosis; patient choice and impact on long term outcomes

BACKGROUND

Enteral tube feeding (ETF) has been evaluated in paediatric and mixed child and adult populations with cystic fibrosis, demonstrating positive outcomes from 6 months to 2 years post insertion. No studies have examined the longer term nutritional and clinical outcomes in an exclusively adult population with cystic fibrosis or compared the outcomes for those who meet standard criteria and opt to undertake or decline ETF.

METHODS

Twenty three out of 380 patients attending the Leeds Regional Adult CF unit fulfilled the standard criteria for commencing ETF (CF Trust, 2002) between 2004 and 2008. Weight, BMI, FEV1, FVC, CFRD, and number of intravenous antibiotic treatment days were collected at 1 year pre baseline, at baseline, and at 1, 2, and 3 years post baseline for all these patients whether they accepted or declined ETF.

RESULTS

Seventeen of the 23 patients agreed to accept a programme of ETF, two of whom died within the first year of ETF. In the remaining patients (n=15), weight increased by 19.5% from baseline (p<0.001), BMI increased to within the normal range and lung function stabilised. There was no reduction in the requirement for intravenous antibiotic treatment. The six patients who declined ETF had a decline in lung function and no weight gain.

CONCLUSION

Supplemental enteral tube feeding improves clinical outcomes when administered over 3 years, resulting in significant weight gain, a normal BMI and stabilisation of lung function. It does not reduce intravenous antibiotic treatment days. In contrast those patients eligible for, but who declined ETF, showed a deterioration in lung function and a failure to gain weight and to achieve normal BMI status.

Chronic illness and disordered eating: a discussion of the literature

This paper describes the prevalence of eating disorders and disordered eating behaviors, the reasons why these practices are endorsed, and the potential consequences in youths and young adults with selected diet-related chronic health conditions (DRCHCs) and provides recommendations for eating disorder prevention interventions and research efforts. Although it remains unclear whether the prevalence of eating disorders is higher in those with DRCHCs compared with the general population, overall findings suggest that young people with DRCHCs may be at risk of endorsing disordered eating behaviors that may lead to diagnosis of an eating disorder and other health problems over the course of their treatment. Thus, health care providers should be aware that young people with DRCHCs may be at risk of eating disorders and carefully monitor psychological changes and the use of unhealthy weight control methods. It is also important to develop and evaluate theory-based interventions and disease-specific eating disorder risk screening tools that are effective in halting the progression of eating disorders and negative health outcomes in young people with chronic health conditions.

Body image and cystic fibrosis: a critical review

A slight frame and poor appetite are common among patients with cystic fibrosis (CF) yet healthy body weight has been related to a better prognosis. A review of studies exploring body image (BI) among adults and adolescents with CF was conducted. Seven electronic databases were searched for potential papers. They located 128 references, of which 24 were read in full and 12 included in the review. Accepted papers suggested females with CF had a better BI compared to males, but this could compromise survival, given their preference for a low body weight. Males may be more motivated to adhere to nutritional advice because they favor a larger form. Practitioners should broach the topic of BI at clinic appointments to ensure this does not have a detrimental impact on self-management, although more research is required to guide professionals in this task.

Body satisfaction, nutritional adherence, and quality of life in youth with cystic fibrosis

Children with cystic fibrosis (CF) typically have similar nutritional intake as healthy peers, despite recommendations to consume more calories and fat. Body satisfaction may play a role in nutritional intake: females may be content with their smaller size despite recommendations for weight gain, while males may desire to be larger and more muscular, which is more congruent with medical advice. Females are especially at risk, given their propensity to desire a smaller body size, tendency for lower HRQOL, steeper trajectory of health decline and shorter life expectancy than males. This study evaluated body satisfaction in relation to nutritional adherence and HRQOL in youth with CF. Fifty-four individuals with CF (age 9-17) completed the Cystic Fibrosis Questionnaire-Revised (CFQ-R), the Figure Rating Scale, and a 24-hr diet recall interview with their caregiver. Twenty-four percent of youth were non-adherent with caloric goals, and 40.7% did not obtain the minimum recommendation for fat intake. Youth were classified as inconsistent with treatment goals (TI) if they desired a smaller body size or were content with their current size despite a BMI less than the 50th percentile; 44.8% of females were classified as TI, compared to only 8% of males. Statistical analyses were performed to evaluate the impact of gender and body satisfaction on HRQOL in youth with CF. Linear multiple regression models were fit; TI females had Emotional HRQOL scores 23 points lower than males. Results suggest that improving body satisfaction, especially for females, may help to improve overall quality of life and potentially impact nutritional adherence.

A pre-post retrospective study of patients with cystic fibrosis and gastrostomy tubes

OBJECTIVES

The aim of the study was to assess the efficacy of gastrostomy tube (GT) placement on improving nutritional status and pulmonary function in patients with cystic fibrosis (CF).

PATIENTS AND METHODS

Data were collected from the Minnesota Cystic Fibrosis Database. Subjects with at least 5 percent-predicted forced expiratory volume in 1 second (ppFEV1) and 1 BMI percentile (pBMI) measurements before and after GT placement were included. Median pBMI values were compared 2 years before and 1, 2, and 4 years after GT placement using a signed rank test. Longitudinal mixed model analysis was used to assess the effect of GT placement on ppFEV1. To assess the effect of ppFEV1 at GT placement on efficacy, the estimated ppFEV1 change was regressed against the ppFEV1 level at placement.

RESULTS

Forty-six subjects with CF who met entry criteria were identified. Mean estimated step changes in ppFEV1 at placement for men, women, boys, and girls were 2.16% (P = 0.52), 0.43% (P = 0.92), 0.99% (P = 0.65), and -0.91% (P = 0.74), respectively. Mean estimated slope changes of ppFEV1 after GT placement were 5.01% (P = 0.02), 4.48% (P = 0.07), 1.49% (P = 0.23), and 4.02% (P = 0.01) per year for men, women, boys, and girls, respectively. Median change in pBMI in the second year after GT placement was 13.3% (P ≤ 0.0001). Estimated coefficients for the effect of ppFEV1 level at placement on the ppFEV1 step and slope change were -0.041 (P = 0.28) and -0.005 (P = 0.84), respectively.

CONCLUSIONS

GT placement in patients with CF results in significant improvement in both pBMI and ppFEV1, except in women. The change in lung function after GT placement is not dependent on the level of lung function at placement.

Quality of life in rare genetic conditions: a systematic review of the literature

Quality of life (QoL) refers to an individual's sense of overall well-being encompassing physical, psychological, emotional, social, and spiritual dimensions. Although genetics healthcare providers strive to promote patient well-being, and the term QoL is often invoked to refer to this outcome, there is lack of clarity as to what actually constitutes QoL from the patient's perspective. This systematic literature review aims to summarize and integrate research findings to help elucidate how healthcare providers can more effectively enhance the QoL of patients affected with rare genetic conditions. Eligible studies were those that measured QoL as a primary outcome variable using a validated, multi-dimensional scale. Detailed criteria were used to rate quality of design, methodology, and analytic rigor. Fifty-eight studies were selected for inclusion in the review, and a narrative synthesis of the data was performed. A central theme emerging from the literature is that, although genetic conditions have the potential to have significant negative consequences for individuals' lives, having a genetic condition does not necessarily entail poor QoL. Evidence demonstrates that factors beyond the physical manifestations of the disease, such as psychological well-being, coping, and illness perceptions, influence QoL and may serve as potent targets for intervention. The field of research on QoL in rare genetic conditions will be advanced by uniting around a clear conceptualization of QoL and using more rigorous methodology with comprehensive measures of global QoL.

Symposium 6: Young people, artificial nutrition and transitional care The nutritional challenges of the young adult with cystic fibrosis: transition

Cystic fibrosis (CF) is a complex multisystem disorder affecting mainly the gastrointestinal tract and respiratory system. Intestinal malabsorption occurs in approximately 90% of patients. In the past, malnutrition was an inevitable consequence of disease progression, leading to poor growth, impaired respiratory muscle function, decreased exercise tolerance and immunological impairment. A positive association between body weight and height and survival has been widely reported. The energy requirements of patients with CF vary widely and generally increase with age and disease severity. For many young adults requirements will be 120–150% of the age-related estimated average requirement. To meet these energy needs patients are encouraged to eat a high-fat high-energy diet with appropriate pancreatic enzyme supplements. Many patients are unable to achieve an adequate intake as a result of a variety of factors including chronic poor appetite, infection-related anorexia, gastro-oesophageal reflux and abdominal pain. Oral energy supplements and enteral tube feeding are widely used. Nutritional support has been shown to improve nutritional status and stabilise or slow the rate of decline in lung function. With such emphasis on nutritional intake and nutritional status throughout life, poor adherence to therapies and issues relating to body image are emerging. The median survival of patients with CF is increasing. CF is now considered a life-limiting disease of adulthood rather than a terminal childhood illness. With increased longevity new challenges are emerging that include the transition of young adults with CF to adult services, CF-related diabetes, disordered eating, osteoporosis, liver disease and transplantation.

Health-related quality of life measurement in cystic fibrosis: advances and limitations

Health-related quality of life (HRQoL) measurement in cystic fibrosis (CF) allows the inclusion of the patient's perspective in research and clinical practice. HRQoL scales have been used for many purposes and this review focuses on how HRQoL measurement has been implemented in CF research and care. Specifically, the review considers 1) the instruments used to measure HRQoL, 2) the factors that influence how people report HRQoL, 3) the monitoring of HRQoL in clinical practice, 4) HRQoL as an outcome measure in interventions and clinical trials and 5) whether HRQoL can predict survival. The challenge for the future is to use the available information to develop and evaluate psychological interventions that would be expected to improve HRQoL in children and adults with CF.

Patient-reported outcomes in cystic fibrosis

Over the past 20 years, there has been tremendous progress in the area of patient-reported outcomes (PROs). A PRO instrument is defined as any measure of a patient's health status that is elicited directly from the patient and assesses how the patient "feels or functions with respect to his or her health condition." The advances seen in clinical research regarding PROs has been mirrored in research in cystic fibrosis (CF). A large number of instruments have been used for both therapeutic and nontherapeutic clinical research for many chronic conditions. This review will summarize a history of the development of PROs and how PROs are viewed by the U.S. Food and Drug Administration. We will then review the current state of the art of patient-reported outcomes in CF, specifically addressing the evaluation of different PRO instruments in terms of their reliability and validity. Finally, we will delineate further areas for development of PROs in CF. We believe that the future of CF research will incorporate a more diverse selection of PRO outcome measures; these outcome measures ultimately may be incorporated into clinical care to standardize symptom assessment and provide information regarding the need for specific clinical interventions to improve the quality of care delivered to these patients.