Clinical and cost-effectiveness of individualised (early) patient-directed rehabilitation versus standard rehabilitation after surgical repair of the rotator cuff of the shoulder: protocol for a multicentre, randomised controlled trial with integrated Quintet Recruitment Intervention (RaCeR 2)

INTRODUCTION

Despite the high number of operations and surgical advancement, rehabilitation after rotator cuff repair has not progressed for over 20 years. The traditional cautious approach might be contributing to suboptimal outcomes. Our aim is to assess whether individualised (early) patient-directed rehabilitation results in less shoulder pain and disability at 12 weeks after surgical repair of full-thickness tears of the rotator cuff compared with current standard (delayed) rehabilitation.

METHODS AND ANALYSIS

The rehabilitation after rotator cuff repair (RaCeR 2) study is a pragmatic multicentre, open-label, randomised controlled trial with internal pilot phase. It has a parallel group design with 1:1 allocation ratio, full health economic evaluation and quintet recruitment intervention. Adults awaiting arthroscopic surgical repair of a full-thickness tear are eligible to participate. On completion of surgery, 638 participants will be randomised. The intervention (individualised early patient-directed rehabilitation) includes advice to the patient to remove their sling as soon as they feel able, gradually begin using their arm as they feel able and a specific exercise programme. Sling removal and movement is progressed by the patient over time according to agreed goals and within their own pain and tolerance. The comparator (standard rehabilitation) includes advice to the patient to wear the sling for at least 4 weeks and only to remove while eating, washing, dressing or performing specific exercises. Progression is according to specific timeframes rather than as the patient feels able. The primary outcome measure is the Shoulder Pain and Disability Index total score at 12-week postrandomisation. The trial timeline is 56 months in total, from September 2022.

TRIAL REGISTRATION NUMBER

ISRCTN11499185.

Rotator cuff disorders: An updated survey of current (2023) UK physiotherapy practice

BACKGROUND

Clinical guidelines recommend treatment by a physiotherapist for people with shoulder pain due to rotator cuff disorder. Despite this recommendation, research evidence supporting the effectiveness of treatment by a physiotherapist is uncertain. While developing a randomised controlled trial to test the effectiveness of treatment by a physiotherapist for people with shoulder pain due to rotator cuff disorders, we first aimed to understand current practice as a basis for defining usual care.

METHODS

An online survey was developed based on a clinical vignette used in a previous survey exploring physiotherapy practice for people with shoulder pain due to rotator cuff disorder. UK-based physiotherapists were invited to complete the survey via X and email across professional networks.

RESULTS

One Hundred Seventy complete responses were received. 167 (98%) respondents would offer advice/education to patients with shoulder rotator cuff disorders; 146 (86%) would use isotonic exercise (including concentric/eccentric strengthening); 20 (12%) would offer a corticosteroid injection; 7 (4%) would use joint mobilisation. 168/169 (99%) would offer in-person assessment; 115 (68%) expect to deliver treatment over three to four sessions. Fifty percent agreed there is uncertainty about the effectiveness of physiotherapy treatment for patients with shoulder rotator cuff disorders. Seventy six percent agreed that patients with this condition can recover without physiotherapy intervention.

CONCLUSIONS

Exercise and advice remain the most common treatments offered by physiotherapists for people with shoulder pain due to rotator cuff disorder. Corticosteroid injections are infrequently considered. Uncertainty about the effectiveness of treatment by a physiotherapist for shoulder pain due to rotator cuff disorder is evident.

Exploring the experiences and perceptions of patients awaiting rotator cuff repair surgery: An integrated qualitative study within the POWER pilot and feasibility trial

BACKGROUND

As waiting times for orthopaedic surgery increase, there have been calls to move from 'waiting lists' to 'preparation lists', to better prepare patients for surgery. In this context, a pilot randomised controlled trial (POWER) was conducted, comparing physiotherapist-led exercise to waiting-list control (usual care), for patients awaiting rotator cuff repair surgery. This qualitative study was integrated within the pilot trial.

OBJECTIVES

Explore the experiences of adults awaiting rotator cuff repair surgery in the NHS. Explore the acceptability of the physiotherapist-led exercise intervention. Explore the barriers and enablers to recruitment, retention, and adherence.

DESIGN

Integrated qualitative study with semi-structured telephone interviews.

METHODS

Adults awaiting rotator cuff repair, consenting to participate in the trial were eligible. Sampling was purposive regarding age, gender, randomised allocation, and hospital site. Interviews were audio-recorded and transcribed. Data were analysed using Reflexive Thematic Analysis.

RESULTS

20 participants were recruited (age range 49-81 years; 12 male, 10 randomised to physiotherapist-led exercise). Many participants were unable to recall their experiences of trial processes; nonetheless, three themes were identified from the data: experience of shoulder pain and pathway to treatment; communication and decision-making in the context of rotator cuff repair surgery; and experiences of the POWER physiotherapist-led exercise intervention and processes.

CONCLUSIONS

Patients experience significant burden due to shoulder pain. Their journey to surgery can be long, confusing, and associated with perceived abandonment. In a future trial, the intervention should offer opportunity for shared decision-making, optional exit from the surgical pathway, and an individualised exercise programme.

Developing an application for the UK Pre-Doctoral Clinical and Practitioner Academic Fellowship (PCAF): the collective experience of a community of physiotherapists

For physiotherapists and other healthcare professionals, developing capability and expertise in research can be challenging. However, involvement in research is beneficial at organisational and individual levels, both for clinicians and patients. One way to embark on research is to apply for a personal fellowship such as the National Institute for Health and Care Research (NIHR) Pre-Doctoral Clinical Academic Fellowship (PCAF). While the NIHR has guidance on how to complete the application form, it can be difficult to implement this guidance and understand what a competitive application looks like. As a group of physiotherapists and academic supervisors, who have applied for NIHR PCAFs, what follows is a supportive resource, to inform others who might be thinking of applying. CONTRIBUTION OF PAPER.

Physiotherapist-led exercise versus usual care (waiting-list) control for patients awaiting rotator cuff repair surgery: A pilot randomised controlled trial (POWER)

BACKGROUND

Once a decision to undergo rotator cuff repair surgery is made, patients are placed on the waiting list. It can take weeks or months to receive surgery. There has been a call to move from waiting lists to 'preparation' lists to better prepare patients for surgery and to ensure it remains an appropriate treatment option for them.

OBJECTIVE

To evaluate the feasibility, as measured by recruitment rates, treatment fidelity and follow-up rates, of a future multi-centre randomised controlled trial to compare the clinical and cost-effectiveness of undertaking a physiotherapist-led exercise programme while waiting for surgery versus usual care (waiting-list control).

DESIGN

Two-arm, multi-centre pilot randomised controlled trial with feasibility objectives in six NHS hospitals in England.

METHOD

Adults (n = 76) awaiting rotator cuff repair surgery were recruited and randomly allocated to a programme of physiotherapist-led exercise (n = 38) or usual care control (n = 38).

RESULTS

Of 302 eligible patients, 76 (25%) were randomised. Of 38 participants randomised to physiotherapist-led exercise, 28 (74%) received the exercise programme as intended. 51/76 (67%) Shoulder Pain and Disability Index questionnaires were returned at 6-months. Of 76 participants, 32 had not received surgery after 6-months (42%). Of those 32, 20 were allocated to physiotherapist-led exercise; 12 to usual care control.

CONCLUSIONS

A future multi-centre randomised controlled trial is feasible but would require planning for variable recruitment rates between sites, measures to improve treatment fidelity and opportunity for surgical exit, and optimisation of follow-up. A fully powered, randomised controlled trial is now needed to robustly inform clinical decision-making.

Are Corticosteroid Injections Associated With Secondary Adrenal Insufficiency in Adults With Musculoskeletal Pain? A Systematic Review and Meta-analysis of Prospective Studies

BACKGROUND

Corticosteroid injection is a common treatment for individuals experiencing musculoskeletal pain, and it is part of the management of numerous orthopaedic conditions. However, there is concern about offering corticosteroid injections for musculoskeletal pain because of the possibility of secondary adrenal insufficiency.

QUESTIONS/PURPOSES

In this systematic review and meta-analysis of prospective studies, we asked: (1) Are corticosteroid injections associated with secondary adrenal insufficiency as measured by 7-day morning serum cortisol? (2) Does this association differ depending on whether the shot was administered in the spine or the appendicular skeleton?

METHODS

We searched the Allied and Complementary Medicine (AMED), Embase, EmCare, MEDLINE, CINAHL, and Web of Science from inception to January 22, 2021. We retrieved 4303 unique records, of which 17 were eventually included. Study appraisal was via the Downs and Black tool, with an average quality rating of fair. A Grading of Recommendations, Assessment, Development, and Evaluations assessment was conducted with the overall certainty of evidence being low to moderate. Reflecting heterogeneity in the study estimates, a pooled random-effects estimate of cortisol levels 7 days after corticosteroid injection was calculated. Fifteen studies or subgroups (254 participants) provided appropriate estimates for statistical pooling. A total of 106 participants received a spine injection, and 148 participants received an appendicular skeleton injection, including the glenohumeral joint, subacromial bursa, trochanteric bursa, and knee.

RESULTS

Seven days after corticosteroid injection, the mean morning serum cortisol was 212 nmol/L (95% confidence interval 133 to 290), suggesting that secondary adrenal insufficiency was a possible outcome. There is a difference in the secondary adrenal insufficiency risk depending on whether the injection was in the spine or the appendicular skeleton. For spinal injection, the mean cortisol was 98 nmol/L (95% CI 48 to 149), suggesting secondary adrenal insufficiency was likely. For appendicular skeleton injection the mean cortisol was 311 nmol/L (95% CI 213 to 409) suggesting hypothalamic-pituitary-adrenal axis integrity was likely.

CONCLUSION

Clinicians offering spinal injections should discuss the possibility of short-term secondary adrenal insufficiency with patients, and together, they can decide whether the treatment remains appropriate and whether mitigation strategies are needed. Clinicians offering appendicular skeleton injections should not limit care because of concerns about secondary adrenal insufficiency based on the best available evidence, and clinical guidelines could be reviewed accordingly. Further research is needed to understand whether age and/or sex determine risk of secondary adrenal insufficiency and what clinical impact secondary adrenal insufficiency has on patients undergoing spinal injection.

LEVEL OF EVIDENCE

Level IV, therapeutic study.

Effectiveness of early versus delayed rehabilitation following total shoulder replacement: A systematic review

Objective

To investigate the effectiveness of early versus delayed rehabilitation following total shoulder replacement.

Design

Intervention systematic review with narrative synthesis.

Literature search

MEDLINE, EMBASE, CINAHL, Scopus and the Cochrane Library were searched from inception to the 29^th of July 2021.

Study selection criteria

Randomised controlled trials comparing early versus delayed rehabilitation following primary anatomic, primary reverse, or revision total shoulder replacement.

Data synthesis

A revised Cochrane risk of bias assessment tool for randomised controlled trials was used, as well as the Grading of Recommendations Assessment, Development and Evaluation approach to evaluate the quality of evidence. A narrative synthesis was undertaken.

Results

Three eligible randomised controlled trials (n = 230) were included. There was very low-quality evidence of no statistically significant difference (P > 0.05) in pain, shoulder function, health-related quality of life or lesser tuberosity osteotomy healing at 12 months between early or delayed rehabilitation. There was conflicting and very low-quality evidence of a difference between the effect of early and delayed rehabilitation on shoulder range of movement. There was limited, very low-quality evidence of statistically significantly improved pain and function (P < 0.05) in the early post-operative period with early rehabilitation following anatomic total shoulder replacement.

Conclusions

No differences were seen in patient-reported or clinician-reported outcomes at 12 months post-surgery between early and delayed rehabilitation following total shoulder replacement. There is very low-quality evidence that early rehabilitation may improve shoulder pain and function in the early post-operative phase following anatomic total shoulder replacement.

Rehabilitation following rotator cuff repair: A multi-centre pilot & feasibility randomised controlled trial (RaCeR)

OBJECTIVE

To evaluate the feasibility of a multi-centre randomised controlled trial to compare the clinical and cost-effectiveness of early patient-directed rehabilitation versus standard rehabilitation following surgical repair of the rotator cuff of the shoulder.

DESIGN

Two-arm, multi-centre pilot and feasibility randomised controlled trial.

SETTING

Five National Health Service hospitals in England.

PARTICIPANTS

Adults (n = 73) with non-traumatic rotator cuff tears scheduled for repair were recruited and randomly allocated remotely prior to surgery.

INTERVENTIONS

Early patient-directed rehabilitation (n = 37); advised to remove their sling as soon as able and move as symptoms allow. Standard rehabilitation (n = 36); sling immobilisation for four weeks.

MEASURES

(1) Randomisation of 20% or more eligible patients. (2) Difference in time out of sling of 40% or more between groups. (3) Follow-up greater than 70%.

RESULTS

73/185 (39%) potentially eligible patients were randomised. Twenty participants were withdrawn, 11 due to not receiving rotator cuff repair. The between-group difference in proportions of participants who exceeded the cut-off of 222.6 hours out of the sling was 50% (80% CI = 29%, 72%), with the early patient-directed rehabilitation group reporting greater time out of sling. 52/73 (71%) and 52/53 (98%) participants were followed-up at 12 weeks when withdrawals were included and excluded respectively. Eighteen full-thickness re-tears were reported (early patient-directed rehabilitation = 7, standard rehabilitation = 11). Five serious adverse events were reported.

CONCLUSION

A main randomised controlled trial is feasible but would require allocation of participants following surgery to counter the issue of withdrawal due to not receiving surgery.

Rehabilitation following rotator cuff repair: A survey of current practice (2020)

INTRODUCTION

Approaches to rehabilitation following rotator cuff repair are variable but typically include 4-6 weeks of immobilisation followed by a gradual introduction of movement and activity. However, research has questioned whether such an approach is optimal. The aim of this study was to undertake an updated survey to understand whether practice has evolved in line with contemporary research.

METHODS

An electronic survey was developed describing three case scenarios (medium-sized rotator cuff repair [2 cm], large-sized rotator cuff repair [4 cm] and large-sized rotator cuff repair with biceps tenodesis). Clinicians involved with rehabilitation following rotator cuff repair were invited to participate.

RESULTS

129 responses were received (United Kingdom = 87, other regions [ORs] = 42). Respondents would most commonly recommend four to six weeks of immobilisation for all case scenarios. Passive movement would commence during this period, with active movement recommended from four to six weeks. Resisted exercise would commence between seven to 12 weeks along with return to driving. There were some minor differences in recommendations between respondents from the United Kingdom and ORs, including a greater proportion from the United Kingdom recommending sling immobilisation rather than abduction brace immobilisation.

CONCLUSION

For many respondents to this survey, rehabilitation for the three case scenarios was similar and has not evolved in line with contemporary research evidence. The reasons behind this need to be explored and incorporated into the design of future research evaluating rehabilitation following rotator cuff repair.

Effectiveness of early versus delayed rehabilitation following rotator cuff repair: Systematic review and meta-analyses

Objective

To investigate the effectiveness of early rehabilitation compared with delayed/standard rehabilitation after rotator cuff repair for pain, function, range of movement, strength, and repair integrity.

Design

Systematic review and meta-analyses.

Methods

We searched databases and included randomised controlled trials (RCTs) comparing early with delayed/standard rehabilitation for patients undergoing rotator cuff repair surgery. We assessed risk of bias of the RCTs using the Cochrane RoB 2 tool.

Results

Twenty RCTs, with 1841 patients, were included. The majority of the RCTs were of high or unclear risk of overall bias. We found substantial variations in the rehabilitation programmes, time in the sling and timing of exercise progression. We found no statistically significant differences for pain and function at any follow-up except for the outcome measure Single Assessment Numeric Evaluation at six months (MD: 6.54; 95%CI: 2.24–10.84) in favour of early rehabilitation. We found statistically significant differences in favour of early rehabilitation for shoulder flexion at six weeks (MD: 7.36; 95%CI: 2.66–12.06), three (MD: 8.45; 95%CI: 3.43–13.47) and six months (MD: 3.57; 95%CI: 0.81–6.32) and one year (MD: 1.42; 95%CI: 0.21–2.64) and similar differences for other planes of movement. In terms of repair integrity, early mobilisation does not seem to increase the risk of re-tears (OR:1.05; 95%CI: 0.64–1.75).

Discussion

Current approaches to early mobilisation, based largely on early introduction of passive movement, did not demonstrate significant differences in most clinical outcomes, although we found statistically significant differences in favour of early rehabilitation for range of movement. Importantly, there were no differences in repair integrity between early and delayed/standard rehabilitation. Most rehabilitation programmes did not consider early active movement as soon as the patient feels able. With ongoing variation in rehabilitation protocols there remains a need for large high quality RCT to inform the optimal approach to rehabilitation after rotator cuff repair surgery.

Modelling the global impact of the 13-valent pneumococcal vaccine on antibiotic use for otitis media

Background

Antimicrobial resistance (AMR) is a critical issue in global health causing approximately 1 million annual deaths. Vaccines are essential in addressing AMR as they reduce resistant strains and prevent development of resistance by preventing spread of disease and resulting antimicrobial use. This analysis evaluates the impact the 13-valent pneumococcal conjugate vaccine (PCV13) has had on dispensed antibiotic prescriptions (DAP) due to otitis media (OM), one of the largest drivers of DAP globally.

Methods

An Excel-based model was developed to estimate number of infants vaccinated with PCV13, and the associated reduction in OM cases in children &lt;5 since 2010. OM cases averted were based on a global meta-analysis and estimated cases averted were applied to infants vaccinated by country. DAP avoided were estimated assuming 90% of OM cases were prescribed an antibiotic. We then compared our modelled estimates to metrics measuring number needed to vaccinate to prevent DAP from any outcome.

Results

Over the past 10 years, we estimated 286,54m infants were vaccinated with PCV13, with 158,33m OM cases and as many as 142,49m DAP avoided globally. By WHO region, reductions in OM rates and DAP respectively are estimated to have been; Africa and Eastern Mediterranean (103,05m; 92,74m), South-East Asia and Western Pacific (8,82m; 7,94m), Europe (20,70m; 18,63m) and Americas (25,76m; 23,18m). Using rates from the literature of 0,20 to 1,79 total DAP avoided per child vaccinated, results ranged from to 71,63m to 511,68m.

Conclusions

PCV13 use has resulted in substantial reductions in OM and DAP. As we focus on OM in children &lt;5, results underestimate the full impact of PCV13 on DAP as vaccine impact on other pneumococcal diseases and adults through herd effect are not included. Recognition of the role of vaccination in addressing AMR burden is an opportunity to encourage patients, providers and healthcare systems to continually prioritize vaccination in public health efforts.

Key messages

Over the past 10 years, PCV13 has led to considerable reductions in dispensed antibiotic prescriptions globally, highlighting the importance of prioritizing vaccination in global healthcare systems. Our findings illustrate how vaccines can play an essential role in reducing the global burden of antimicrobial resistance through reduction of antibiotic use.

Rehabilitation following shoulder arthroplasty in the United Kingdom National Health Service: A survey of publicly facing information

INTRODUCTION

The prevalence of shoulder arthroplasty (SA) is rising, but there is limited research evaluating rehabilitation following SA and whether there is an optimal approach remains unknown. The aim of this study was to understand current National Health Service (NHS) practice for rehabilitation following SA as a platform for conducting much needed further research.

METHODS

Two reviewers independently undertook electronic searches for publicly available information sheets (PIS) from websites of NHS Trusts that included detail about rehabilitation following SA, for example, duration of immobilisation. One reviewer extracted data, and a second reviewer verified this.

ETHICAL APPROVAL

Not required.

RESULTS

Forty-three PIS from 40 Trusts were identified. Twenty-four referred to more than one type of arthroplasty (anatomic, reverse and hemiarthroplasty) but did not describe different approaches to rehabilitation based on prosthesis type. Twenty-five PIS provided some instruction regarding movement restrictions, which varied considerably. All PIS referred to postoperative immobilisation, typically with a sling, with median duration of 4 weeks (range 0 to 8). Thirty-four PIS reported commencing passive exercise immediately. Median time to commencing active exercise was 4 weeks (range 1 to 6) and 5 weeks (range 1 to 16) for resisted exercise. Median time expected to return to driving was 6 weeks (range 3 to 12) and general work 12 weeks (range 3 to 26).

CONCLUSION

This study has highlighted significant heterogeneity between rehabilitation approaches following SA, not previously reported in the United Kingdom, with a lack of specific rehabilitation PIS for different prosthesis types. Our results will facilitate evaluation of rehabilitation strategies in future research.

Protocol for a multi-centre pilot and feasibility randomised controlled trial with a nested qualitative study: rehabilitation following rotator cuff repair (the RaCeR study)

Background

Shoulder pain is a highly prevalent complaint and disorders of the rotator cuff, including tears, are thought to be the most common cause. The number of operations repair the torn rotator cuff has risen significantly in recent years. While surgical techniques have progressed, becoming less invasive and more secure, rehabilitation programmes have remained largely like those initially developed when surgical techniques were less advanced and more invasive. Uncertainty remains in relation to the length of post-surgical immobilisation and the amount of early load permitted at the repair site. In the context of this uncertainty, current practice is to follow a generally cautious approach, including long periods of immobilisation in a sling and avoidance of early active rehabilitation. Systematic review evidence suggests early mobilisation might be beneficial but further high-quality studies are required to evaluate this.

Methods/design

RaCeR is a two-arm, multi-centre pilot and feasibility randomised controlled trial with nested qualitative interviews. A total of 76 patients with non-traumatic rotator cuff tears who are scheduled to have a surgical repair will be recruited from up to five UK NHS hospitals and randomly allocated to either early patient-directed rehabilitation or standard rehabilitation that incorporates sling immobilisation. RaCeR will assess the feasibility of a future, substantive, multi-centre randomised controlled trial to test the hypothesis that, compared to standard rehabilitation incorporating sling immobilisation, early patient-directed rehabilitation is both more clinically effective and more cost-effective. In addition, a sample of patients and clinicians will be interviewed to understand the acceptability of the interventions and the barriers and enablers to adherence to the interventions.

Discussion

Research to date suggests that there is the possibility of reducing the patient burden associated with post-operative immobilisation following surgery to repair the torn rotator cuff and improve clinical outcomes. There is a clear need for a high-quality, adequately powered, randomised trial to better inform clinical practice. Prior to a large-scale trial, we first need to undertake a pilot and feasibility trial to address current uncertainties about recruitment, retention and barriers to adherence to the interventions, particularly in relation to whether patients will be willing to begin moving their arm early after their operation.

Trial registration

ISRCTN Registry, 18357968. Registered on 10 August 2018.

Electronic supplementary material

The online version of this article (10.1186/s13063-019-3407-3) contains supplementary material, which is available to authorized users.

Trends in vaccine investment in middle income countries

Although a proven and effective preventive health measure, childhood immunization programs remain vulnerable to budgetary pressures. Sustainable financing of immunization programs is an important issue that presents a challenge for middle-income countries (MIC) in particular, in part due to technological advances meaning more vaccines are available. This study aimed to analyse trends in immunization program investment across 15 MIC selected based on availability of data, income level classification, and regional representativeness. We assessed investment trends in relation to vaccine coverage, vaccine access, and broader health indicators. Immunization and expenditure data were obtained from the World Health Organisation (WHO) database and the WHO UNICEF Joint Reporting Form and WHO Vaccine Product, Price and Procurement from 2006-2016. We calculated a weighted average index of vaccine commitment (WAIVC) based on vaccine coverage, vaccine scope, and weighted by vaccine innovation measured by approximating vaccine expenditure. Correlation analyses were conducted between immunization expenditure per-capita and each WAIVC, infant mortality and life expectancy. Correlation analyses at a global and individual country level indicate an improvement in immunization access, vaccination commitment measured by WAIVC, and scope of available vaccines in countries with sustained increases in vaccination funding. Increases in national immunization expenditure were correlated with reduced infant mortality and increased life expectancy. Vaccine expenditure comprises a small proportion (less than 2%) of total healthcare spending and has not uniformly increased in accordance with the scope of available vaccines. The present analysis supports the premise that countries with consistent increases in vaccine expenditure have increased vaccine coverage and commitment measured by WAIVC and improved broader health outcomes, indicating the value of sustained investment in vaccination for improved population health. The benefits of vaccine expenditure in this holistic fashion are critical to inform policy decisions on national budget allocation for vaccine funding.

Psychometric evaluation of electronic diaries assessing side-effects of hormone therapy

OBJECTIVES

Postmenopausal women (PMW) can experience side-effects (breast pain/tenderness and vaginal spotting/bleeding) associated with estrogen plus progestin therapies (EPTs). To assess these outcomes, the Breast Pain and Tenderness Daily Diary (BPT-DD) and the Vaginal Bleeding and Spotting Daily Diary (VBS-DD) were developed for electronic completion (eDiaries). This study evaluated the psychometric properties of the eDiaries.

METHODS

The eDiaries were completed daily for 28 days by 202 PMW experiencing breast pain/tenderness and/or vaginal spotting/bleeding while on EPTs. Confirmatory factor analysis (CFA) investigated the BPT-DD structure. Response distributions, test-retest reliability (intraclass correlation coefficient [ICC]), internal consistency (BPT-DD only), and construct validity (via known groups and convergent validity analyses) were assessed.

RESULTS

Completion rates were high: over 90% of women missed <3 daily entries. CFA supported the BPT-DD unidimensional structure (Bentler's Comparative Fit Index >0.98). BPT-DD inter-item correlations (r = 0.77-0.89) and internal consistency (Cronbach's alpha = 0.95-0.97) were high and good test-retest reliability was demonstrated (ICC ≥ 0.70). The eDiaries correlated moderately (>0.40), in a logical pattern with other instruments, supporting convergent validity. Known-groups analyses indicated both measures demonstrated significant differences between patients of differing severity (p < 0.001).

CONCLUSION

The study provides evidence of strong psychometric properties for the BPT-DD and VBS-DD to assess breast pain/tenderness and spotting/bleeding in PMW.

Evaluation of RIDA®GENE norovirus GI/GII real time RT-PCR using stool specimens collected from children and adults with acute gastroenteritis

BACKGROUND

Norovirus is the leading cause of epidemic and sporadic acute gastroenteritis (AGE) in the United States. Widespread prevalence necessitates implementation of accurate norovirus detection assays in clinical diagnostic laboratories.

OBJECTIVE

To evaluate RIDA^®GENE norovirus GI/GII real-time RT-PCR assay (RGN RT-PCR) using stool samples from patients with sporadic AGE.

STUDY DESIGN

Patients between 14 days to 101 years of age with symptoms of AGE were enrolled prospectively at four sites across the United States during 2014-2015. Stool specimens were screened for the presence of norovirus RNA by the RGN RT-PCR assay. Results were compared with a reference method that included conventional RT-PCR and sequencing of a partial region of the 5'end of the norovirus ORF2 gene.

RESULTS

A total of 259 (36.0%) of 719 specimens tested positive for norovirus by the reference method. The RGN RT-PCR assay detected norovirus in 244 (94%) of these 259 norovirus positive specimens. The sensitivity and specificity (95% confidence interval) of the RGN RT-PCR assay for detecting norovirus genogroup (G) I was 82.8% (63.5-93.5) and 99.1% (98.0-99.6) and for GII was 94.8% (90.8-97.2) and 98.6% (96.9-99.4), respectively. Seven specimens tested positive by the RGN-RT PCR that were negative by the reference method. The fifteen false negative samples were typed as GII.4 Sydney, GII.13, GI.3, GI.5, GI.2, GII.1, and GII.3 in the reference method.

CONCLUSIONS

The RGN RT-PCR assay had a high sensitivity and specificity for the detection of norovirus in stool specimens from patients with sporadic AGE.

The COL5A3 and MMP9 genes interact in eczema susceptibility

BACKGROUND

Genetic studies of eczema have identified many genes, which explain only 14% of the heritability. Missing heritability may be partly due to ignored gene-gene (G-G) interactions.

OBJECTIVE

Our aim was to detect new interacting genes involved in eczema.

METHODS

The search for G-G interaction in eczema was conducted using a two-step approach, which included as a first step, a biological selection of genes, which are involved either in the skin or epidermis development or in the collagen metabolism, and as a second step, an interaction analysis of the selected genes. Analyses were carried out at both SNP and gene levels in three asthma-ascertained family samples: the discovery dataset of 388 EGEA (Epidemiological study on the Genetics and Environment of Asthma) families and the two replication datasets of 253 SLSJ (Saguenay-Lac-Saint-Jean) families and 207 MRCA (Medical Research Council) families.

RESULTS

One pair of SNPs, rs2287807 in COL5A3 and rs17576 in MMP9, that were detected in EGEA at P ≤ 10^-5 showed significant interaction by meta-analysis of EGEA, SLSJ and MRCA samples (P = 1.1 × 10^-8 under the significant threshold of 10^-7 ). Gene-based analysis confirmed strong interaction between COL5A3 and MMP9 (P = 4 × 10^-8 under the significant threshold of 4 × 10^-6 ) by meta-analysis of the three datasets. When stratifying the data on asthma, this interaction remained in both groups of asthmatic and non-asthmatic subjects.

CONCLUSION

This study identified significant interaction between two new genes, COL5A3 and MMP9, which may be accounted for by a degradation of COL5A3 by MMP9 influencing eczema susceptibility. Further confirmation of this interaction as well as functional studies is needed to better understand the role of these genes in eczema.

Network-assisted analysis of GWAS data identifies a functionally-relevant gene module for childhood-onset asthma

The number of genetic factors associated with asthma remains limited. To identify new genes with an undetected individual effect but collectively influencing asthma risk, we conducted a network-assisted analysis that integrates outcomes of genome-wide association studies (GWAS) and protein-protein interaction networks. We used two GWAS datasets, each consisting of the results of a meta-analysis of nine childhood-onset asthma GWASs (5,924 and 6,043 subjects, respectively). We developed a novel method to compute gene-level P-values (fastCGP), and proposed a parallel dense-module search and cross-selection strategy to identify an asthma-associated gene module. We identified a module of 91 genes with a significant joint effect on childhood-onset asthma (P < 10⁻⁵). This module contained a core subnetwork including genes at known asthma loci and five peripheral subnetworks including relevant candidates. Notably, the core genes were connected to APP (encoding amyloid beta precursor protein), a major player in Alzheimer’s disease that is known to have immune and inflammatory components. Functional analysis of the module genes revealed four gene clusters involved in innate and adaptive immunity, chemotaxis, cell-adhesion and transcription regulation, which are biologically meaningful processes that may underlie asthma risk. Our findings provide important clues for future research into asthma aetiology.

Metoclopramide, thickened feedings, and positioning for gastro-oesophageal reflux in children under two years

BACKGROUND

Gastro-esophageal reflux (GER) is the refluxing of gastric contents into the esophagus. Fifty per cent of all infants 0 to 3 months regurgitate at least once a day. This drops to 5% once infants are 10 to 12 months old. Three per cent of parents of 10 to 12 month old infants view this as a problem.

OBJECTIVES

To investigate the effectiveness of thickened feeds, positioning, and metoclopramide as compared to placebo in improving the outcome of GER in developmentally normal infants aged one month to two years.

SEARCH STRATEGY

We searched the Cochrane Central Register of Controlled Trials (The Cochrane Library 2003), MEDLINE (January 1966 to 23 January 2003), EMBASE (January 1985 to 27 January 2003), and reference lists of articles.

SELECTION CRITERIA

Randomised studies (parallel or cross over) which evaluated thickened feeds, positional alternations or metoclopramide for the treatment of GER in children between the age of one month and two years who were developmentally normal.

DATA COLLECTION AND ANALYSIS

All three reviewers independently assessed trial quality and extracted data. Study authors were contacted for additional information. Adverse effects information was collected from the trials.

MAIN RESULTS

Twenty trials involving 771 children met the inclusion criteria: eight dealt with thickened feeds, five with positioning, and seven with metoclopramide. Few comparisons could be made, and so summary measures were often made with two or three studies. Thickened feeds reduce the regurgitation severity score (standardized mean difference (SMD) -0.94;95% confidence interval -1.35 to -0.52), as well as the frequency of emesis (SMD -0.91; confidence interval -1.22 to -0.61). The reflux index was not reduced (weighted mean difference (WMD) 0.48%; 95% confidence interval-3.27 to 4.23). All five positioning studies utilized esophageal pH monitoring as their outcome measure. Elevating the head of the crib for treating reflux in the supine position is not justifiable. The seven metoclopramide studies used a variety of outcomes. Compared to placebo, metoclopramide appears to reduce daily symptoms ( SMD -0.73; 95% confidence interval -1.16 to -0.30), and reduce the reflux index (WMD -2.80%; 95% confidence interval -5.58 to -0.01). It does increase side effects.

REVIEWERS' CONCLUSIONS

Thickened feeds are helpful in reducing the symptoms of GER. Elevating the head of the crib in the supine position does not have any effect. Metoclopramide may have some benefit in comparison to placebo in the symptomatic treatment for GER, but that must be weighed against possible side effects. .

Looking over the horizon: an Internet-based international course in healthcare management

The International Course in Healthcare Management is predicated on the belief that comparative benefits can most effectively be 'taught' by enabling students to work directly with colleagues in other countries, sharing views, discussing differences, and checking understandings on how healthcare is structured and managed in different countries. The course focuses on four countries--Canada, Germany, Finland and Ireland--which offer an interesting range and mix of approaches to healthcare, and yet are sufficiently similar to ensure relative ease of understanding. The course, which is delivered and taught jointly by faculty from five participating institutions in the four countries using the Internet as the distance delivery medium, is an integral component of each institution's participating department's graduate program. The aims of the course are: to enable the participants to develop an in-depth understanding of the healthcare systems of each country; to foster a deeper understanding, through comparative analysis, of each participant's own healthcare system; and to facilitate the development of new insights into ways of addressing common concerns in healthcare management. The course is structured around a series of case studies organized under four main themes: financing and funding; delivery issues; impact of health service reforms; and evidence-based management.

Pediatric trauma registries: the foundation of quality care

BACKGROUND/PURPOSE

Traumatic injuries cause substantial morbidity and mortality in children. Trauma registries are essential to assess and improve standards of trauma care. An interprovincial study of pediatric trauma between 6 centers across Canada who use identical software components was completed.

METHODS

Data were collected from April 1, 1995 to December 31, 1998 for children aged 1 day to 17 years with an injury severity score of > or = 12. Cause of injury, injury time and day, gender, age, injury scores, length of hospital stay, and outcomes were compared.

RESULTS

A total of 1,276 patients were included. Mean age was 10.3 +/- 5.6 years. Motor vehicle collisions were the most common mechanism of injury (56%). Boys were more often injured (66%; P < .05). Injuries occurred mainly between 1600 and 2400 hours (P < .0001). Mean hospital stay was 11.5 +/- 16.6 days. The longest stays in the hospital were among those who had an abdominal abbreviated injury score (AIS) of 1 (P < or = .03). Patients with similar injury severities remained twice as long in Winnipeg Children's Hospital (hospital 5), hospital 2, and hospital 6 as compared with patients in hospital 3 (P < .05). Differences existed in discharge placement between hospitals (P < .0001).

CONCLUSIONS

This study was the first to compare pediatric patients in multiple Canadian centers using identical trauma registries. Variations in length of stay and discharge placements between hospitals were identified. Further analysis of data in the registries may clarify these differences and serve as a foundation for hospitals to improve the quality of patient care.

Self-disclosure of HIV infection to sexual partners after repeated counseling

This study, with the objective of examining voluntary self-disclosure of HIV infection after repeated counseling, was conducted in a private setting, and designed to operate in conjunction with HIV testing. Counseling was provided at entry, and then at 3 months, 6 months, and every six months thereafter. The study was conducted among 129 HIV-positive adults; the primary risk factor was history of: males having sex with males (n = 104); injection drug use (n = 19); or heterosexual contact (n = 6). Results showed that after a mean of 2.3 years since initial HIV-positive notification, 29 percent of subjects had not disclosed the HIV infection to any present partner, and 30 percent to any past sex partner. Casual sex and lower perceived social support were significantly associated with nondisclosure. The authors conclude that even after repeated individual counseling and at least several months to inform others, about one-third of the sexually active subjects did not disclose their HIV infection to any present sex partner. Clinical and public health implications are covered.

Self-disclosure of HIV infection to dentists and physicians

We prospectively examined self-disclosure of HIV infection by 129 men and women to dentists and physicians. After an average of 2.3 years since initial HIV-positive notification and repeated individual counseling, only 53 percent of subjects had told their dentists of HIV infection compared to 89 percent who had told their physicians. This high rate of non-disclosure despite extensive counseling raises concern about effectiveness of education alone in promoting voluntary self-disclosure. Our findings further support recommended universal precautions.

Earlier discharge with community-based intervention for low birth weight infants: a randomized trial

BACKGROUND

Prolonged hospitalization of low birth weight infants increases the risk of medical and psychosocial complications. The feasibility of earlier discharge with community-based follow-up of infants of < or = 2000 g birth weight, without the use of home apnea monitors, was investigated.

METHODS

One hundred infants of < or = 2000 g birth weight were randomized to either an intervention or control group. Intervention infants were discharged when readiness criteria were met. Based on assessed need, intervention group families received public health nursing and homemaker services for up to 8 weeks. Control infants were discharged to their homes at the discretion of the attending physician. All infants were assessed blindly at age 1 year with the Bayley and Home Observation for Measurement of the Environment (HOME) scales.

RESULTS

There were no group differences in baseline infants' characteristics or in neonatal complications. Infants in the intervention group were discharged from the hospital at an earlier postconceptional age (mean +/- SD 36.6 +/- 1.5 weeks vs 37.3 +/- 1.6 weeks; P < .04). Median length of hospital stay (23 days vs 31.5 days) and mean weight at the time of discharge (2200 +/- 288 g vs 2275 +/- 301 g) were lower, but not significantly, for infants in the intervention group. A secondary analysis by birth weight strata (< or = 1500 g and 1501 through 2000 g) revealed that the most significant reductions in hospital stay and weight at discharge were realized in infants of 1501 through 2000 g birth weight. The persistence of apneic episodes and need for electronic monitoring prevented earlier discharge of infants of < or = 1500 g birth weight. Postdischarge services to the intervention group included 185 public health nurse home visits (3.8 +/- 0.91), 410 phone contacts (8.4 +/- 5), and 2298 homemaker hours (46 +/- 78) of service. At 1 year, there were no deaths and no group differences in rehospitalization rates, use of ambulatory services, or Bayley scores. Intervention families had significantly higher 1-year HOME scores. Minimum cost of hospital care was $873 per day, while the total cost of community-based services averaged $626 per infant.

CONCLUSIONS

A significant reduction in average length of hospital stay was achieved for infants of 1501 through 2000 g birth weight. Earlier discharge of infants weighing < or = 1500 g at birth was hampered by persistent apneic episodes and feeding difficulties. A community-based program designed to provide individualized support and education for families of low birth weight infants was cost-effective and had a positive influence on the home environment.

Congenital hydrocephalus secondary to Walker-Warburg syndrome identified on the Manitoba Neonatal Screening Programme for Duchenne muscular dystrophy

This report describes our first experience with a clinically important true false positive neonatal screening test for Duchenne muscular dystrophy (DMD). Neonatal screening for DMD began as a pilot programme in Manitoba on 1 January 1986 by analysis of creatine kinase (CK) activity in dried filter paper blood spots. To date, all except two males with positive initial and follow up neonatal CK screening tests were subsequently diagnosed as having DMD. Of these two, one was a newborn male with congenital hydrocephalus whose positive DMD screening test led to the identification of an associated congenital myopathy and confirmation of the diagnosis of Walker-Warburg syndrome.