Evaluating the impact of 2006 Australasian Clinical Practice Guidelines for nutrition in children with cystic fibrosis in Australia

Evolution of nutritional management in children with cystic fibrosis - a narrative review

Nutrition has played a central role in the management and outcomes of people with cystic fibrosis (pwCF) since the 1970s. Advances in therapies and practices in recent decades have led to a significant change in the patient landscape with dramatic improvements in life expectancy, as well as quality of life, bringing with it new issues. Historically, cystic fibrosis was a condition associated with childhood and malnutrition; however, changes in patient demographics, nutritional assessment and fundamental nutritional management have evolved, and it has become an increasingly prevalent adult disease with new nutritional challenges, including obesity. This paper aims to describe these changes and the impact and challenges they bring for those working in this field. Nutritional professionals will need to evolve, adapt and remain agile to the wider range of situations and support required for a new generation of pwCF. Specialised nutrition support will continue to be required, and it will be additionally important to improve and optimise quality of life and long-term health.

Quality assessment of clinical practice guidelines in Kenya using the AGREE II tool: a methodological review

OBJECTIVE

To assess the quality of available and accessible national Clinical Practice Guidelines (CPGs) in Kenya using the Appraisal of Guidelines for Research and Evaluation II (AGREE II) tool.

METHODS

We searched the websites of the Kenyan Ministry of Health, professional associations and contacted experts in relevant organisations. Our scope was guidelines on maternal, neonatal, nutritional disorders, injuries, communicable and non-communicable diseases in Kenya published in the last 5 years until 30 June 2022. Study selection and data extraction were done by three independent reviewers with disagreements resolved via discussion or with a senior reviewer. We conducted a quality assessment using the online English version of AGREE II tool across six domains. Descriptive statistics were analysed using Stata software V.17. The primary outcome was the methodological quality of the included CPGs assessed by the AGREE II tool score.

RESULTS

We retrieved 95 CPGs and included 24 in the analysis after screening for eligibility. The CPGs scored best in clarity of presentation and least in the rigour of development. In descending order, the appraisal scores (mean and CI) per domain were as follows: Clarity of presentation 82.96% (95% CI 78.35% to 87.57%) with all guidelines scoring above 50%. Scope and purpose 61.75% (95% CI 54.19% to 69.31%) with seven guidelines scoring less than 50%. Stakeholder involvement 45.25% (95% CI 40.01% to 50.49%) with 16 CPGs scoring less than 50%. Applicability domain 19.88% (95% CI 13.32% to 26.43%) with only one CPG scoring above 50%. Editorial independence 6.92% (95% CI 3.47% to 10.37%) with no CPG scoring above 50% and rigour of development 3% (95% CI 0.61% to 5.39%) with no CPG scoring at least 50%.

CONCLUSION

Our findings suggest that the quality of CPGs in Kenya is limited mainly by the rigour of development, editorial independence, applicability and stakeholder involvement. Training initiatives on evidence-based methodology among guideline developers are needed to improve the overall quality of CPGs for better patient care.

Involvement of methodological experts and the quality of clinical practice guidelines: a critical appraisal of clinical practice guidelines and a questionnaire survey of the development groups in Japan

OBJECTIVE

To evaluate whether the involvement of methodological experts improves the quality of clinical practice guidelines (CPGs) after adjusting for other factors.

SETTING

The quality of Japanese CPGs published in 2011-2019 was assessed using the Appraisal of Guidelines, Research, and Evaluation (AGREE) II instrument. A questionnaire survey targeting CPG development groups was conducted through postal mail.

PARTICIPANTS

405 CPGs were retrieved from a Japanese CPG clearinghouse. Questionnaires were distributed to the 405 CPG development groups. Of the 178 respondents, 22 were excluded because of missing values. Finally, 156 participants representing their CPG development groups were included in the analysis.

PRIMARY AND SECONDARY OUTCOME MEASURES

CPG quality was assessed using the AGREE II tool. The characteristics of CPGs, including publication year, development organisation, versions, number of members in the development group and involvement of methodological experts, were corrected from the description in the CPGs and the questionnaire survey. We performed multiple logistic regressions using the quality of CPGs as the dependent variable and the involvement of experts as the independent variable, adjusting for other possible factors.

RESULTS

A total of 156 CPGs were included. Expert involvement was significantly associated with the AGREE II instrument scores in domains 1 (β=0.207), 2 (β=0.370), 3 (β=0.413), 4 (β=0.289), 5 (β=0.375), 6 (β=0.240) and overall (β=0.344).

CONCLUSION

This study revealed that the involvement of methodological experts in the CPG development process improves the quality of CPGs. The results suggest the importance of establishing a training and certification programme for experts and constructing expert referral systems that meet CPG developers' needs to improve the quality of CPGs.

Standards of Nutritional Care for Patients with Cystic Fibrosis: A Methodological Primer and AGREE II Analysis of Guidelines

Although many Clinical Practice Guidelines (CPGs) have been published for the care of patients with Cystic Fibrosis (CF), including a variety of nutrition recommendations, the quality of these CPGs has never been evaluated. The aim of this study was to compare, review, and critically appraise CPGs for the nutritional management of CF, throughout the lifespan. We searched PubMed, Guidelines International Network (GIN), ECRI Institute, and Guidelines Central for CPGs, with information on the nutritional management of CF. Retrieved CPGs were appraised by three independent reviewers, using the Appraisal of Guidelines, Research and Evaluation II (AGREE II) instrument and checklist. A total of 22 CPGs (seven solely nutrition oriented), by 14 different publishers, were retrieved. The Thoracic Society of Australia and New Zealand CPGs scored the highest overall quality (94.4%), while the Paediatric Gastroenterology Society/Dietitians Association of Australia CPGs had the lowest score (27.8%). Great variation in AGREE II domain-specific scores was observed in all CPGs, suggesting the existence of different strengths and weaknesses. Despite the availability of several CPGs, many appear outdated, lacking rigor, transparency, applicability, and efficiency, while incorporating bias. Considering that CPGs adherence is associated with better outcomes and the need for improving life expectancy in patients with CF, the development of CPGs of better quality is deemed necessary.

Might Routine Vitamin A Monitoring in Cystic Fibrosis Patients Reduce Virus-Mediated Lung Pathology?

Cystic fibrosis (CF) is an autosomal recessive gene disorder that affects tens of thousands of patients worldwide. Individuals with CF often succumb to progressive lung disease and respiratory failure following recurrent infections with bacteria. Viral infections can also damage the lungs and heighten the CF patient's susceptibility to bacterial infections and long-term sequelae. Vitamin A is a key nutrient important for immune health and epithelial cell integrity, but there is currently no consensus as to whether vitamin A should be monitored in CF patients. Here we evaluate previous literature and present results from a CF mouse model, showing that oral vitamin A supplements significantly reduce lung lesions that would otherwise persist for 5-6 weeks post-virus exposure. Based on these results, we encourage continued research and suggest that programs for the routine monitoring and regulation of vitamin A levels may help reduce virus-induced lung pathology in CF patients.

The structure of the quality of clinical practice guidelines with the items and overall assessment in AGREE II: a regression analysis

Background

The Appraisal of Guidelines for Research & Evaluation (AGREE) II has been widely used to evaluate the quality of clinical practice guidelines (CPGs). While the relationship between the overall assessment of CPGs and scores of six domains were reported in previous studies, the relationship between items constituting these domains and the overall assessment has not been analyzed. This study aims to investigate the relationship between the score of each item and the overall assessment and identify items that could influence the overall assessment.

Methods

All Japanese CPGs developed using the evidence-based medicine method and published from 2011 to 2015 were used. They were independently evaluated by three appraisers using AGREE II. The evaluation results were analyzed using regression analysis to evaluate the influence of 6 domains and 23 items on the overall assessment.

Results

A total of 206 CPGs were obtained. All domains and all items except one were significantly correlated to the overall assessment. Regression analysis revealed that Domain 3 (Rigour of Development), Domain 4 (Clarity of Presentation), Domain 5 (Applicability), and Domain 6 (Editorial Independence) had influence on the overall assessment. Additionally, four items of AGREE II, clear selection of evidence (Item 8), specific/unambiguous recommendations (Item 15), advice/tools for implementing recommendations (Item 19), and conflicts of interest (Item 22), significantly influenced the overall assessment and explained 72.1% of the variance.

Conclusions

These four items may highlight the areas for improvement in developing CPGs.