How to write a Critically Appraised Topic: evidence to underpin routine clinical practice

Checking nasogastric tube safety in children cared for in the community: a re-examination of the evidence base

Nasogastric tube feeding is generally considered safe provided a nasogastric aspirate with a pH ≤5.5, which indicates that the end of tube is correctly located in the stomach, can be obtained. When this is not possible, hospital attendance or admission is usually required so that an X-ray can be undertaken to check the tube's position. This practice is based on an interpretation of the evidence that places undue importance on nasogastric aspirate pH testing before every use of a tube that is already in place, with potential negative consequences for children cared for in the community and their families. Following a re-examination of the evidence base, a revised approach is proposed in this article: when a child has a tube in place, provided its position has been confirmed as correct on initial placement using aspirate pH testing, nurses can use checks other than aspirate pH testing, alongside their clinical judgement, to determine whether it is safe and appropriate to use the tube. This proposed revised approach would reduce delayed or missed administration of fluids, feeds and medicines and enable more children to remain at home.

Occupational Therapy Students' Evidence-Based Practice Skills as Reported in a Mobile App: Cross-Sectional Study

BACKGROUND

Evidence-based practice (EBP) is an important aspect of the health care education curriculum. EBP involves following the 5 EBP steps: ask, assess, appraise, apply, and audit. These 5 steps reflect the suggested core competencies covered in teaching and learning programs to support future health care professionals applying EBP. When implementing EBP teaching, assessing outcomes by documenting the student's performance and skills is relevant. This can be done using mobile devices.

OBJECTIVE

The aim of this study was to assess occupational therapy students' EBP skills as reported in a mobile app.

METHODS

We applied a cross-sectional design. Descriptive statistics were used to present frequencies, percentages, means, and ranges of data regarding EBP skills found in the EBPsteps app. Associations between students' ability to formulate the Population, Intervention, Comparison, and Outcome/Population, Interest, and Context (PICO/PICo) elements and identifying relevant research evidence were analyzed with the chi-square test.

RESULTS

Of 4 cohorts with 150 students, 119 (79.3%) students used the app and produced 240 critically appraised topics (CATs) in the app. The EBP steps "ask," "assess," and "appraise" were often correctly performed. The clinical question was formulated correctly in 53.3% (128/240) of the CATs, and students identified research evidence in 81.2% (195/240) of the CATs. Critical appraisal checklists were used in 81.2% (195/240) of the CATs, and most of these checklists were assessed as relevant for the type of research evidence identified (165/195, 84.6%). The least frequently correctly reported steps were "apply" and "audit." In 39.6% (95/240) of the CATs, it was reported that research evidence was applied. Only 61% (58/95) of these CATs described how the research was applied to clinical practice. Evaluation of practice changes was reported in 38.8% (93/240) of the CATs. However, details about practice changes were lacking in all these CATs. A positive association was found between correctly reporting the "population" and "interventions/interest" elements of the PICO/PICo and identifying research evidence (P<.001).

CONCLUSIONS

We assessed the students' EBP skills based on how they documented following the EBP steps in the EBPsteps app, and our results showed variations in how well the students mastered the steps. "Apply" and "audit" were the most difficult EBP steps for the students to perform, and this finding has implications and gives directions for further development of the app and educational instruction in EBP. The EBPsteps app is a new and relevant app for students to learn and practice EBP, and it can be used to assess students' EBP skills objectively.

[Critical Evaluation of Permanently Listed Psychosocial Digital Health Applications into the Directory for Reimbursable Digital Health Applications of the BfArM]

Digital health applications (DiGA) delivered as psychosocial therapeutic interventions entail a huge potential through their proven medical benefit or patient-relevant structure and process improvements. Their usage as first-line or concomitant therapy is refunded by the German health insurances. Therefore, the digital health applications have to pass a complex evidence process as requested by the Federal Institute for Drugs and Medical Services. The present article aimed at critically evaluating the available evidence of the permanently registered DiGA using the Critically Appraised Topic method. In conclusion, all studies fulfil at least two thirds of the evaluation criteria, implying that the overall evidence is of sufficient quality.

The Effect of Manual Therapy Plus Exercise in Patients with Lateral Ankle Sprains: A Critically Appraised Topic with a Meta-Analysis

A high percentage of patients with lateral ankle sprains report poor outcomes and persistent neuromuscular impairment leading to chronic ankle instability and re-injury. Several interventions have been proposed and investigated, but the evidence on manual therapy combined with therapeutic exercise for pain reduction and functional improvement is still uncertain. The purpose was to study the effectiveness of adding manual therapy to therapeutic exercise in patients with lateral ankle sprains through a critically appraised topic. The literature search was performed in PubMed, PEDro, EMBASE and CINAHL databases, and only randomized clinical trials were included according to following criteria: (1) subjects with acute episodes of lateral ankle sprains, (2) administered manual therapy plus therapeutic exercise, (3) comparisons with therapeutic exercise alone and (4) reported outcomes for pain and function. Three randomized clinical trials (for a total of 180 patients) were included in the research. Meta-analyses revealed that manual therapy plus exercise was more effective than only exercises in improving dorsal (MD = 8.79, 95% CI: 6.81, 10.77) and plantar flexion (MD = 8.85, 95% CI 7.07, 10.63), lower limb function (MD = 1.20, 95% CI 0.63, 1.77) and pain (MD = -1.23; 95% IC -1.73, -0.72). Manual therapy can be used with therapeutic exercise to improve clinical outcome in patients with lateral ankle sprains.

Trajectory Curves for Purposes of Benchmarking and Predicting Clinical Outcomes: A Scoping Review

Trajectory curves are valuable tools to benchmark patient health status and predict future outcomes. A longitudinal study is underway to examine social participation after burn injury using the Life Impact Burn Recovery Evaluation (LIBRE) Profile with the goal of developing trajectory curves for specific domains that focus on social reintegration. We conducted a scoping review to inform and understand trajectory curves applied in clinical settings to compare outcomes for an individual to a matched cohort of comparable patients or predicted expected outcomes over time. This scoping review utilized a PubMed search from January 2014 to August 2019 for the following terms: "trajectory curves" or "trajectory models" and "clinic" or "clinical." Only articles that specifically referenced longitudinal and clinical research designs were included in the scoping review. Articles were assessed using standard scoping review methods and categorized based on clinical application of trajectory curves for either benchmarking or prediction. The initial literature review identified 141 manuscripts and 34 met initial inclusion criteria. The reviewed articles support the clinical use of trajectory curves. Findings provide insight into several key determinants involved with the successful development and implementation of trajectory curves in clinical settings. These findings will inform efforts to use the LIBRE Profile to model social participation recovery and assist in developing effective strategies using trajectory curves to promote social reintegration after burn injury.

A Systematic Review of Mental Health-Improving Interventions in Veterinary Students

Literature over the past 5 years has demonstrated that veterinary students globally are experiencing poor mental health. This has detrimental consequences for their emotional well-being and physical health, as well as implications for their future careers. Considering this issue, a systematic review was devised to investigate what interventions were being used, and what effect they had, in veterinary students. The review process involved a search of five databases, from which 161 records were retrieved. Following this, the screening process revealed seven articles eligible for appraisal. These studies investigated seven different interventions, six being cohort-level workshops/courses and one being a collation of several individual strategies. All seven studies reported that the interventions were effective to some degree in improving the mental health of their participants. However, the lack of repeat interventions and control groups limited the external validity of each intervention. A comparison to the research in medical students is briefly discussed. Three of the appraised articles were recommended for further investigation.

Covering patient's perspective in case-based critical review articles to improve shared decision making in complex cases

Background

The patient has always been at the centre of the evidence‐based medicine model. Case‐based critical reviews, such as best‐evidence topics, however, are incomplete reflections of the evidence‐based medicine philosophy, because they fail to consider the patient's perspective. We propose a new framework, called the ‘Shared Decision Evidence Summary’ (ShaDES), where the patient's perspective on available treatment options is explicitly included.

Methods

Our framework is grounded in the critical appraisal of a clinical scenario, and the development of a clinical question, including patient characteristics, compared options and outcomes to be improved. Answers to the clinical question are informed by the literature, the evaluation of its quality and its potential usefulness to the clinical scenario. Finally, the evidence synthesis is presented to the patient to facilitate the formulation of an evidence‐informed decision about the treatment options.

Key results

Using three similar but contrasted clinical scenarios of patients with low back pain, we illustrate how considering the patient's preferences on the proposed treatment options impact the bottom line, a synthetic formulation of the answer to the focused question. ShaDES includes clinical and psychosocial components, transformed in a searchable question, with a full search strategy.

Conclusions

ShaDES is a practical framework that may facilitate clinical decisions adapted to psychological, social and other relevant non‐clinical characteristics of patients.

Critically Appraised Topics (CATs) in Veterinary Medicine: Applying Evidence in Clinical Practice

Critically appraised topics (CATs) are evidence syntheses that provide veterinary professionals with information to rapidly address clinical questions and support the practice of evidence-based veterinary medicine (EBVM). They also have an important role to play in both undergraduate and post-registration education of veterinary professionals, in research and knowledge gap identification, literature scoping, preparing research grants and informing policy. CATs are not without limitations, the primary one relating to the rapid approach used which may lead to selection bias or restrict information identified or retrieved. Furthermore, the narrow focus of CATs may limit applicability of the evidence findings beyond a specific clinical scenario, and infrequently updated CATs may become redundant. Despite these limitations, CATs are fundamental to EBVM in the veterinary profession. Using the example of a dog with osteoarthritis, the five steps involved in creating and applying a CAT to clinical practice are outlined, with an emphasis on clinical relevance and practicalities. Finally, potential future developments for CATs and their role in EBVM, and the education of veterinary professionals are discussed. This review is focused on critically appraised topics (CATs) as a form of evidence synthesis in veterinary medicine. It aims to be a primary guide for veterinarians, from students to clinicians, and for veterinary nurses and technicians (hereafter collectively called veterinary professionals). Additionally, this review provides further information for those with some experience of CATs who would like to better understand the historic context and process, including further detail on more advanced concepts. This more detailed information will appear in pop-out boxes with a double-lined surround to distinguish it from the information core to producing and interpreting CATs, and from the boxes with a single line surround which contain additional resources relevant to the different parts of the review.

Is psoriasis associated with dementia or cognitive impairment? A Critically Appraised Topic

CLINICAL QUESTION

Is psoriasis associated with dementia or cognitive impairment?

BACKGROUND

Psoriasis is a multisystemic inflammatory disorder that has an unclear association with cognitive dysfunction.

OBJECTIVES

To conduct a Critically Appraised Topic that synthesizes the results from relevant observational studies.

METHODS

A systematic literature search of PubMed and Embase was conducted on 12 July 2019 to identify case-control, cross-sectional or cohort studies that investigated the association between psoriasis and cognitive impairment or dementia. Risk of bias was assessed for each study, and the results presented in a narrative synthesis.

RESULTS

Eleven studies were included for critical appraisal. Of the 11 studies, 10 compared a total of 16 574 psoriasis cases with over 45 078 controls for risk of dementia or cognitive impairment. One of the 11 studies evaluated 7118 patients with dementia for odds of psoriasis compared with 21 354 controls. Six studies were assessed to have higher risk of bias. Nine of the 11 included studies found a significant positive association between the two diseases, one study a null association, and one study an inverse association.

DISCUSSION AND RECOMMENDATION

Most of the 11 included studies found a positive association between psoriasis and either mild cognitive impairment or dementia. Brief cognitive assessments have been suggested to screen older patients with psoriasis who present with subjective cognitive complaints.

The psychological impact of Stevens-Johnson syndrome and toxic epidermal necrolysis on patients' lives: a Critically Appraised Topic

CLINICAL SCENARIO

A 65-year-old man presented with a 12-h history of deteriorating rash. Two weeks previously he had completed a course of neoadjuvant chemotherapy for ductal carcinoma of the breast. On examination there were bullae, widespread atypical targetoid lesions and 15% epidermal detachment. There was no mucosal involvement on presentation, but subsequently it did evolve. Skin biopsy showed subepidermal blistering with epidermal necrosis. This confirmed our clinical diagnosis of overlap Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN). On transfer to intensive care he was anxious and fearful.

MANAGEMENT QUESTION

What are the psychological impacts of SJS/TEN on this man's life?

BACKGROUND

SJS and TEN have devastating outcomes for those affected.

OBJECTIVES

To conduct a Critically Appraised Topic to (i) analyse existing research related to the psychological impact of SJS and TEN and (ii) apply the results to the clinical scenario.

METHODS

Seven electronic databases were searched for publications focusing on the psychological impact of SJS/TEN on adults over 18 years of age.

RESULTS

Six studies met the inclusion criteria. Healthcare practitioners' (HCPs') lack of information around the disorder was highlighted. Patients experienced undue stress and fear. Some patients had symptoms aligned to post-traumatic stress disorder (PTSD), anxiety and depression.

DISCUSSION AND RECOMMENDATION

The evidence suggests that SJS and TEN impact psychologically on patients' lives. Education of HCPs, to address their lack of awareness and information on SJS/TEN, should facilitate their capacity to provide information and support to patients, thereby reducing patient anxiety. On discharge, a follow-up appointment with relevant HCPs to reduce the possibility of PTSD occurring should be considered.

Evidence Based Medicine IV: how to find an evidence-based answer to a clinical question? Make a critically appraised topic!

This manuscript is the fourth in a five part series related to evidence based medicine (EBM) provided by the European society of pediatric urology (ESPU) research committee. It will present a way to come to a quick and critical appraisal of available evidence on a specific topic: a CAT (critically appraised topic). The way how to write a cat is described for interventions to be compared to a control group, and for other, more generalized clinical questions. While systematic reviews provide a throughout overview of all evidence available, a CAT provides a shorter way to come to quick insights based on EBM.

Do mHealth applications improve clinical outcomes of patients with cancer? A critical appraisal of the peer-reviewed literature

Purpose

Patients undergoing systemic anti-cancer treatment experience distressing side effects, and these symptoms are often experienced outside the hospital setting. The impact of usage of cancer-related mobile health (mHealth) applications on patient-related outcomes requires investigation.

Methods

A critical appraisal of the literature was performed for the following question: ‘In patients with cancer have mHealth applications been compared with usual care to examine impact on commonly used clinical outcomes’. Literature searches were undertaken with the help of a research librarian and included Medline, Cochrane Collaboration, clinical trial databases and grey searches.

Results

Seventeen studies including between 12 and 2352 patients were identified and reviewed. Smartphone applications or internet portals collected data on symptoms or patient activity. Several studies showed statistically significant differences in patient-reported outcomes when symptom monitoring using mobile health application was compared to usual care. Change in mobility was the only outcome that was related directly to toxicity. Only limited data on mortality, cancer-related morbidity including complications of care, health-economic outcomes or long-term outcomes were reported.

Conclusions

Studies on mHealth applications might improve aspects of symptom control in patients with cancer, but there is currently little evidence for impact on other outcomes. This requires future research in interventional studies.

Optimizing case reports and case series: guidance on how to improve quality

Case reports and case series remain an important part of journals and are often first to document medical breakthroughs. This article reviews their characteristics, aims and limitations. It provides information on how to increase the validity of the bedside decision-making process that these studies report, using tools such as validated outcomes and split-body or n-of-1 trials. A section describing tools to improve writing of case reports and case series provides suggestions for detailed reporting and good evaluation of novelty, validity and relevance. It includes general and British Journal of Dermatology-specific guidance.