Significance of Radiomics in Predicting Local Control for Patients with Malignant Liver Tumors Treated Using Stereotactic Body Radiotherapy

PURPOSE/OBJECTIVE(S)

We routinely deliver Stereotactic Body Radiotherapy (SBRT) in malignant liver tumors using planning computed tomography (CT) and Magnetic Resonance Images (MRI) to aid target definition. In this study, we extracted radiomic features from the MR images to predict local control (LC) post-SBRT.

MATERIALS/METHODS

We retrospectively analyzed patients with either hepatocellular cancers (HCCs) or liver metastases (Mets) treated with SBRT between Aug 2014 and Aug 2020. All patients had CT simulation followed by 1.5 Tesla planning MRI in treatment position. Contrast enhanced T1 VIBE and T2 Haste MR sequences were registered with planning CT for target definition. Radiomic features were extracted from Gross Tumor Volumes (GTV) masked out of 60 seconds post contrast T1 VIBE MR images using the Radiomics calculator tool RaCaT. The output included 480 (408 textural, 50 intensity and 22 morphological) features for each target. Principal Component Analysis of the outputs obtained from all the targets yielded 20 radiomic feature clusters after computational prioritization. These clusters were correlated to LC outcomes at various time points post-SBRT. LC was defined as non-progressive disease. Accuracy of predictions was measured by area under (AUC) receiver operating characteristic curve. Cox regression analysis was done to find univariate and multivariate clinical [HCCs vs. Mets, single vs. multiple lesions, previous local therapy (yes vs. no), GTV volume (≤40 vs. >40 cc)], radiomic and dosimetric predictors (continuous) of LC.

RESULTS

In total, 97 patients received SBRT to 122 lesions. The median dose prescribed was 45 Gy (range, 30-50 Gy). Median age was 69 years (interquartile range, IQR 61-73 yrs.). 59 patients had HCCs and 38 had Mets. 24 lesions had prior ablative therapy. 75 patients had one target, and 22 had multiple targets. Median GTV was 43.5 cc (IQR 23.4-78.6 cc). Median follow up was 16.6 months (IQR 9.7-27.2 mths). Median LC was 13.6 months (IQR 8.0-23.5 mths). On univariate analysis, histology (HCCs vs. Mets; Hazard ratio (HR) 2.9, 95% CI 1.4-6.4; p < 0.006), radiomic clusters (p < 0.006) and the max., mean, and min. doses to GTV and Planning Target Volumes correlated with improved LC (all p-values < 0.05). On multivariate analysis, histology (HCCs vs. Mets; HR 4.4, 95% CI 1.6-12.3; p = 0.004), radiomic clusters (p = 0.034) and prescription dose (p = 0.048) were significant covariates. Specifically, the 20 radiomic clusters were predictive of LC, and the accuracy of predictions showed promise with AUC values of 0.74, 0.80, and 0.81 at 12, 24, and 36 months post-SBRT, respectively. AUC values for LC in HCCs vs. Mets at 12, 24, and 36 months were 0.83, 0.77, and 0.70, and 0.66, 0.77, and 0.88, respectively.

CONCLUSION

MR-based radiomics predict LC post-SBRT in patients with malignant liver tumors. Further research focused on independent validation of the model is required to explore its clinical use.

Highly efficient and selective aqueous phase hydrogenation of aryl ketones, aldehydes, furfural and levulinic acid and its ethyl ester catalyzed by phosphine oxide-decorated polymer immobilized ionic liquid-stabilized ruthenium nanoparticles

Phosphine oxide-decorated polymer immobilized ionic liquid stabilized RuNPs catalyse the hydrogenation of aryl ketones with remarkable selectivity for the CO bond, complete hydrogenation to the cyclohexylalcohol and hydrogenation of levulinic acid to γ-valerolactone.

Rationale and methods for the Exercise for Type 1 Diabetes Education program: a pilot randomized controlled trial of an education program to support adults with type 1 diabetes mellitus (T1DM) to undertake exercise

Objective

Regular exercise in people with type 1 diabetes mellitus (T1DM) can result in considerable improvements in health and reduction in cardiovascular events and death. However, a large proportion of people with T1DM are not active. Fear of hypoglycemia and lack of knowledge on how to manage their diabetes are major barriers to exercise in people with T1DM, but few patients receive specific advice about how to adjust insulin and carbohydrate for activity. Furthermore, healthcare professionals (HCP) currently lack the knowledge to advise patients on how to manage their diabetes when active and would like formal training in exercise prescription for people with T1DM.

Research design and methods

This study is divided into two stages. The first stage develops an education program aimed to support people with T1DM to exercise using the Medical Research Council framework. The second stage is a pilot randomized controlled trial (RCT) that aims to collect the key variables to design a definitive trial to test the efficacy and cost-effectiveness of the education package. We aim to recruit 96 patients with T1DM at two UK hospitals.

Conclusions

This article outlines the protocol for a pilot RCT to develop a program of education that will support adults with T1DM to undertake safe and effective exercise. This is accompanied by training for HCPs to deliver this educational intervention. Successful completion of this program of work will address some of the barriers to exercise in adults with T1DM, and should facilitate an increase in exercise for this group of people.

Trial registration number

ISRCTN61403534.

Reducing weight gain in people with schizophrenia, schizoaffective disorder, and first episode psychosis: describing the process of developing the STructured lifestyle Education for People With SchizophrEnia (STEPWISE) intervention

Background

Obesity is twice as common in people with schizophrenia as the general population and associated with significantly worsened psychiatric and physical health. Despite National Institute for Health and Care Excellence guidelines for the management of psychosis recommending that mental health services offer lifestyle programmes to people with schizophrenia to improve physical health, this is not currently occurring. The aim of the STEPWISE research programme was to develop a lifestyle intervention addressing obesity and preventing weight gain in people with schizophrenia, schizoaffective disorder, or first episode psychosis taking antipsychotic medication, through an approach and fundamental principles drawn from existing diabetes and diabetes prevention interventions. This paper describes the often under-reported process of developing such an intervention from first principles.

Methods

Following an extensive literature review, an iterative cycle of development with input from people with schizophrenia, mental healthcare professionals, facilitators, and other stakeholders, a new weight management intervention for the target group was developed. A set of four core weekly sessions was piloted in Sheffield, followed at 3-monthly intervals by three booster sessions and telephone support contact once every 2 weeks, to form an intervention lasting 12 months. Facilitators were provided with a 4-day training package to support delivery of the intervention.

Results

This paper reports the process of development, including challenges and how these were addressed. It describes how user input influenced the structure, topics, and approach of the intervention. The outcome of this process was a feasible and acceptable lifestyle intervention to support people with schizophrenia, schizoaffective disorder, or first episode psychosis to manage their weight. This pilot provided opportunities for refinement of the intervention and facilitator training prior to testing in a multi-centre randomised controlled trial. Key findings from the pilot were linked to accessibility, focus, uptake, and retention, which influenced session length, travel arrangements, refreshment, breaks, and supporting tools to incentivise participants.

Conclusions

The STEPWISE intervention has been evaluated in a randomised controlled trial in 10 mental health trusts in England, and the results will be published in the British Journal of Psychiatry and the NIHR Journals Library.

Trial registration

ISRCTN19447796. Date registered: 20/03/2014

Structured education programme for women with polycystic ovary syndrome: a randomised controlled trial

OBJECTIVE

To evaluate the effectiveness of a structured education programmes in women with polycystic ovary syndrome (PCOS).

METHODS

Single-centre, randomised controlled trial, testing a single exposure to a group-based, face-to-face, structured education programme. Inclusion criteria were women with PCOS, aged 18-49 years inclusive and body mass index ≥23 kg/m² for black and minority ethnicities or ≥25 kg/m² for white Europeans. Primary outcome was step-count/day at 12 months. Secondary outcomes included indices of physical activity, cardiovascular risk factors, quality of life (QoL) and illness perception (IP).

RESULTS

161 women were included (78 control, 83 intervention); 69% white; mean age 33.4 (s.d. 7.6) years, of whom 100 (48 intervention; 52 control) attended their 12-month visit (38% attrition). 77% of the intervention arm attended the education programme. No significant change in step-count was observed at 12 months (mean difference: +351 steps/day (95% confidence interval -481, +1183); P = 0.40). No differences were found in biochemical or anthropometric outcomes. The education programme improved participants' IP in 2 dimensions: understanding their PCOS (P < 0.001) and sense of control (P < 0.01) and improved QoL in 3 dimensions: emotions (P < 0.05), fertility (P < 0.05), weight (P < 0.01) and general mental well-being (P < 0.01).

DISCUSSION

A single exposure to structured education programme did not increase physical activity or improve biochemical markers in overweight and obese women with PCOS. However, providing a structured education in parallel to routine medical treatment can be beneficial for participants' understanding of their condition, reducing their anxiety and improving their QoL.

Is diabetes self-management education still the Cinderella of diabetes care?

This paper reflects on the status of diabetes self-management education (DSME) as a branch of diabetology in Europe and discusses some opportunities for better supporting DSME delivery. DSME (also commonly known as Therapeutic Patient Education) has been evolving as a therapy for diabetes for decades. As a continent, Europe is fortunate to have nurtured many pioneers in DSME, and currently has many experts in the field progressing the knowledge base and striving to improve access to DSME for people with diabetes. While there is a wide variety of DSME programmes being delivered throughout Europe, for most people diabetes education is not truly embedded in routine clinical care, being seen as more of an optional add-on to conventional therapies. In comparison to drugs and devices, DSME lacks investment, and funding for DSME research lags far behind other therapies. The rigour with which forms of DSME are developed and evaluated varies, and there is a lack of European quality standards. To try to address some of these deficiencies, greater pan-European collaboration and leadership is required.

Deficiencies in postgraduate training for healthcare professionals who provide diabetes education and support: results from the Diabetes Attitudes, Wishes and Needs (DAWN2) study

AIMS

To consider the global provision of self-management diabetes education and training for healthcare professionals using data from the second Diabetes Attitudes, Wishes and Needs (DAWN2) study.

METHODS

A total of 4785 healthcare professionals caring for people with diabetes were surveyed in 17 countries to assess diabetes healthcare provision, self-management support and training.

RESULTS

Of the healthcare professionals surveyed, 33.5% received formal postgraduate training in self-management (19.3-51.4% across countries) and 62.9% received training for medical management of diabetes (47.6-70.6% variation). Training in psychological management was low (19.1%), ranging from 3.6 to 36.5%, while 20.4% (a range of 3.6-36.4% across countries) had received no postgraduate training. Overall, the greatest training need was in the management of psychological aspects of diabetes (59.5%). For some, training in a domain was positively associated with a perceived need for further training. Communication skills, for example, listening (76.9%) and encouraging questions (76.1%), were the skills most widely used. Discussion of emotional issues was limited; 31-60% of healthcare professionals across the different countries reported that this only occurred if initiated by patients. Approximately two-thirds of participants reported a need for major improvements in emotional/psychological support, but few had received training in this area, with consistent findings across professional affiliations.

CONCLUSIONS

The present study shows that healthcare professionals report being insufficiently equipped to provide diabetes self-management education, including emotional and psychological aspects of diabetes, and many are not receiving postgraduate training in any part (including medical care) of the management of diabetes. It is paramount that those responsible for the continuing professional development of healthcare professionals address this skills gap.

Evaluating the impact of an enhanced primary care diabetes service on diabetes outcomes: A before-after study

Diabetes is an ambulatory care-sensitive condition and a high quality primary care or risk factor control can lead to a decrease in the risk of non-elective hospitalisations while ensuring continuity of care with usual primary care teams.

AIMS AND METHODS

In this before and after study, eight primary care practices providing a newer enhanced diabetes model of care in Leicester UK, were compared with matched neighbouring practices with comparable demographic features providing a more expensive integrated specialist-community care diabetes service. The primary outcome at twelve months was to demonstrate equivalence in non-elective bed days. The enhanced practices had primary care physicians and nurses with an interest in diabetes who attended monthly diabetes education meetings and provided care plans and audits. The control practices provided an integrated primary-specialist care service.

RESULTS

The difference between the mean change in the non-elective bed days from baseline and at follow up in core and enhanced practices was not statistically significant (mean=2.20 per 100 patients, 95% CI=-0.92 to 5.31 per 100 patients, p=0.14). The analogous change for first outpatients' attendance were 0.23 per 100 patients (95% CI=-0.47 to 0.52 per 100 patients p=0.92) and for diabetes related complications admissions was 0.30 per 100 patients (95% CI=-0.85 to 1.45 per 100 patients p=0.55).

CONCLUSION

A model of enhanced primary care based diabetes care appears unlikely to increase hospitalisations, outpatients' attendance or admissions for diabetes related complications.

Continuous flow gas phase photoreforming of methanol at elevated reaction temperatures sensitised by Pt/TiO2

Gas phase photoreforming of methanol using a Pt/TiO₂ photocatalyst has been performed under flow conditions at elevated temperatures.

Using an interactive DVD about type 2 diabetes and insulin therapy in a UK South Asian community and in patient education and healthcare provider training

OBJECTIVES

To develop and pilot-test the feasibility and effectiveness of an interactive DVD about misconceptions within South Asian communities regarding insulin treatment in type 2 diabetes, for educating patients and community members and training healthcare providers.

METHODS

The project setting was a South Asian (mainly Indian) community in Leicester, UK. Qualitative evidence from our previous studies was used to inform the content of the DVD script and accompanying resources. The intervention involved three components: facilitating DVD viewings for people with/without diabetes in community settings; training healthcare providers involved in managing South Asian patients with diabetes in primary care; and using the DVD and resources in primary care patient consultations. Evaluation involved a range of approaches including face-to-face interviews, telephone feedback and questionnaires.

RESULTS

Analysis of questionnaires and qualitative feedback from community participants showed some significant changes in attitudes and understanding about insulin and high acceptability of the DVD. Healthcare providers who attended the training found it informative and perceived the DVD and visual resources as potentially useful for facilitating acceptance of insulin. Primary care patient recruitment was challenging, but participants described the DVD as an acceptable and informative way of learning about insulin therapy.

CONCLUSION

The DVD intervention was effective and feasible at community and healthcare provider levels.

PRACTICE IMPLICATIONS

Although based on a small sample, at patient level our findings suggested that the DVD worked at different levels helping some to accept the need for insulin and others to consolidate a decision to commence this treatment. Consideration needs to be given to patient engagement strategies for implementation in primary care consultations.

Development of a lifestyle intervention using the MRC framework for diabetes prevention in people with impaired glucose regulation

Background

We report development of a group-based lifestyle intervention, Let's Prevent, using the UK Medical Research Council (MRC) framework, and delivered by structured education to prevent type 2 diabetes mellitus (T2DM) in people with impaired glucose regulation (IGR) in a UK multi-ethnic population.

Methods

Diabetes Education and Self-Management for Ongoing and Newly Diagnosed (DESMOND) is the first national T2DM programme that meets National Institute for Health and Care Excellence criteria and formed the basis for Let's Prevent. An iterative cycle of initial development, piloting, collecting and collating qualitative and quantitative data, and reflection and modification, was used to inform and refine lifestyle intervention until it was fit for evaluation in a definitive randomized controlled trial (RCT). The programme encouraged IGR self-management using simple, non-technical language and visual aids.

Results

Qualitative and quantitative data suggested that intervention resulted in beneficial short-term behaviour change such as healthier eating patterns, improved health beliefs and greater participant motivation and empowerment. We also demonstrated that recruitment strategy and data collection methods were feasible for RCT implementation.

Conclusions

Let's Prevent was developed following successful application of MRC framework criteria and the subsequent RCT will determine whether it is feasible, reliable and transferable from research into a real-world NHS primary healthcare setting.

Trial Registration

ISRCTN80605705.

Education and self-management for women with polycystic ovary syndrome; a narrative review of literature

Polycystic ovary syndrome (PCOS) is the most common endocrine condition in women of reproductive age and is associated with high risk of long term metabolic and psychological conditions such as diabetes, cardiovascular disease and depression. These patients present at a young age to the health care system and seek information about their condition. A structured education program seems to be able to answer these questions. Structured education selfmanagement programs are pragmatic and cost-effective patient-centered group educations which are underpinned by learning theories and empower patients to take control of their management and reduce their associated long term risks. In this paper, we introduce structured education programs and review the evidence of education programs for women with PCOS.

Determining adsorbate configuration on alumina surfaces with 13C nuclear magnetic resonance relaxation time analysis

Relative strengths of surface interaction for individual carbon atoms in acyclic and cyclic hydrocarbons adsorbed on alumina surfaces are determined using chemically resolved ¹³C nuclear magnetic resonance (NMR) T₁ relaxation times.

Increasing capacity to deliver diabetes self-management education: results of the DESMOND lay educator non-randomized controlled equivalence trial

AIM

To develop and test a format of delivery of diabetes self-management education by paired professional and lay educators.

METHODS

We conducted an equivalence trial with non-randomized participant allocation to a Diabetes Education and Self Management for Ongoing and Newly Diagnosed Type 2 diabetes (DESMOND) course, delivered in the standard format by two trained healthcare professional educators (to the control group) or by one trained lay educator and one professional educator (to the intervention group). A total of 260 people with Type 2 diabetes diagnosed within the previous 12 months were referred for self-management education as part of routine care and attended either a control or intervention format DESMOND course. The primary outcome measure was change in illness coherence score (derived from the Diabetes Illness Perception Questionnaire-Revised) between baseline and 4 months after attending education sessions. Secondary outcome measures included change in HbA1c level. The trial was conducted in four primary care organizations across England and Scotland.

RESULTS

The 95% CI for the between-group difference in positive change in coherence scores was within the pre-set limits of equivalence (difference = 0.22, 95% CI 1.07 to 1.52). Equivalent changes related to secondary outcome measures were also observed, including equivalent reductions in HbA1c levels.

CONCLUSION

Diabetes education delivered jointly by a trained lay person and a healthcare professional educator with the same educator role can provide equivalent patient benefits. This could provide a method that increases capacity, maintains quality and is cost-effective, while increasing access to self-management education.

The face of equipoise--delivering a structured education programme within a randomized controlled trial: qualitative study

Background

In trials of behavioural interventions, the individuals who deliver the intervention are in a position of key influence on the success of the trial. Their fidelity to the intervention is crucial. Yet little is understood about the experiences of this group of trial personnel. This study aimed to investigate the views and experiences of educators who delivered a structured education intervention to people with type 2 diabetes, which incorporated training in self-monitoring of either blood glucose (SMBG) or urine glucose (SMUG) as part of a randomized controlled trial (RCT).

Methods

Educators’ views were explored through focus groups before and after training (N = 18) and approximately 1 year into the trial (N = 14), and semi-structured telephone interviews at approximately 2 years (N = 7). Analysis was based on the constant comparative method.

Results

Educators held preferences regarding the intervention variants; thus, they were not in individual equipoise. Training raised awareness of preferences and their potential to impact on delivery. Educators were confident in their unbiased delivery, but acknowledged the challenges involved. Concealing their preferences was helped by a sense of professionalism, the patient-centred nature of the intervention, and concessions in the trial protocol (enabling participants to swap monitoring methods if needed). Commitment to unbiased delivery was explained through a desire for evidence-based knowledge in the contentious area of SMBG.

Conclusions

The findings provide insight into a previously unexplored group of trial personnel - intervention deliverers in trials of behavioural interventions - which will be useful to those designing and running similar trials. Rather than individual equipoise, it is intervention deliverers’ awareness of personal preferences and their potential impact on the trial outcome that facilitates unbiased delivery. Further, awareness of community equipoise, the need for evidence, and relevance to the individual enhance commitment to the RCT.

Trial registration

ISRCTN95696668

Does self monitoring of blood glucose as opposed to urinalysis provide additional benefit in patients newly diagnosed with type 2 diabetes receiving structured education? The DESMOND SMBG randomised controlled trial protocol

BACKGROUND

The benefit of self-monitoring of blood glucose (SMBG) in people with type 2 diabetes on diet or oral agents other than sulphonylureas remains uncertain. Trials of interventions incorporating education about self-monitoring of blood glucose have reported mixed results. A recent systematic review concluded that SMBG was not cost-effective. However, what was unclear was whether a cheaper method of self-monitoring (such as urine glucose monitoring) could produce comparable benefit and patient acceptability for less cost.

METHODS/DESIGN

The DESMOND SMBG trial is comparing two monitoring strategies (blood glucose monitoring and urine testing) over 18 months when incorporated into a comprehensive self-management structured education programme. It is a multi-site cluster randomised controlled trial, conducted across 8 sites (7 primary care trusts) in England, UK involving individuals with newly diagnosed Type 2 diabetes.The trial has 80% power to demonstrate equivalence in mean HbA1c (the primary end-point) at 18 months of within ± 0.5% assuming 20% drop out and 20% non-consent. Secondary end-points include blood pressure, lipids, body weight and psychosocial measures as well as a qualitative sub-study.Practices were randomised to one of two arms: participants attend a DESMOND programme incorporating a module on self-monitoring of either urine or blood glucose. The programme is delivered by accredited educators who received specific training about equipoise. Biomedical data are collected and psychosocial scales completed at baseline, and 6, 12, and 18 months post programme. Qualitative research with participants and educators will explore views and experiences of the trial and preferences for methods of monitoring.

DISCUSSION

The DESMOND SMBG trial is designed to provide evidence to inform the debate about the value of self-monitoring of blood glucose in people with newly diagnosed type 2 diabetes. Strengths include a setting in primary care, a cluster design, a health economic analysis, a comparison of different methods of monitoring while controlling for other components of training within the context of a quality assured structured education programme and a qualitative sub-study.

TRIAL REGISTRATION

ISRCTN: ISRCTN95696668.

Multifactorial intervention in individuals with type 2 diabetes and microalbuminuria: the Microalbuminuria Education and Medication Optimisation (MEMO) study

AIMS

To determine whether tighter cardiovascular risk factor control with structured education in individuals with type 2 diabetes (T2DM) and microalbuminuria benefits cardiovascular risk factors.

METHODS

Participants from a multiethnic population, recruited from primary care and specialist clinics were randomised to intensive intervention with structured patient (DESMOND model) education (n=94) or usual care by own health professional (n=95).

PRIMARY OUTCOME

change in HbA1c at 18months.

SECONDARY OUTCOMES

changes in blood pressure (BP), cholesterol, albuminuria, proportion reaching risk factor targets, modelled cardiovascular risk scores.

RESULTS

Mean (SD) age and diabetes duration of participants were 61.5 (10.5) and 11.5 (9.3) years, respectively. At 18months, intensive intervention showed significant improvements in HbA1c (7.1(1.0) vs. 7.8(1.4)%, p<0.0001), systolic BP (129(16) vs. 139(17) mmHg, p<0.0001), diastolic BP (70(11) vs. 76(12) mmHg, p<0.001), total cholesterol (3.7(0.8) vs. 4.1(0.9) mmol/l, p=0.001). Moderate and severe hypoglycaemia was 11.2 vs. 29.0%; p=0.001 and 0 vs. 6.3%; p=0.07, respectively. More intensive participants achieved ≥3 risk factor targets with greater reductions in cardiovascular risk scores.

CONCLUSIONS

Intensive intervention showed greater improvements in metabolic control and cardiovascular risk profile with lower rates of moderate and severe hypoglycaemia. Intensive glycaemic interventions should be underpinned by structured education promoting self-management in T2DM.

Depressive symptoms in the first year from diagnosis of Type 2 diabetes: results from the DESMOND trial

AIMS

To describe the course of depressive symptoms during the first year after diagnosis of Type 2 diabetes.

METHODS

Post hoc analysis of data from a randomized controlled trial of self-management education for 824 individuals newly diagnosed with Type 2 diabetes. Participants completed the Depression scale of the Hospital Anxiety and Depression Scale after diagnosis and at 4, 8 and 12 months follow-up. Participants also completed the Problem Areas in Diabetes scale at 8 and 12 months follow-up. We present descriptive statistics on prevalence and persistence of depressive symptoms. Logistic regression is used to predict possible depression cases, and multiple regression to predict depressive symptomatology.

RESULTS

The prevalence of depressive symptoms in individuals recently diagnosed with diabetes (18-22% over the year) was not significantly different from normative data for the general population (12%) in the UK. Over 20% of participants indicated some degrees of depressive symptoms over the first year of living with Type 2 diabetes; these were mostly transient episodes, with 5% (1% severe) reporting having depressive symptoms throughout the year. At 12 months post diagnosis, after controlling for baseline depressive symptoms, diabetes-specific emotional distress was predictive of depressive symptomatology.

CONCLUSIONS

The increased prevalence of depressive symptoms in diabetes is not manifest until at least 1 year post diagnosis in this cohort. However, there are a significant number of people with persistent depressive symptoms in the early stages of diabetes, and diabetes-specific distress may be contributing to subsequent development of depressive symptoms in people with Type 2 diabetes.

'Educator talk' and patient change: some insights from the DESMOND (Diabetes Education and Self Management for Ongoing and Newly Diagnosed) randomized controlled trial

AIMS

To determine whether differences in the amount of time educators talk during a self-management education programme relate to the degree of change in participants' reported beliefs about diabetes.

METHOD

Educators trained to be facilitative and non-didactic in their approach were observed delivering the DESMOND self-management programme for individuals newly diagnosed with Type 2 diabetes. Observers used 10-s event coding to estimate the amount of time educators spoke during different sessions in the programme. Facilitative as opposed to didactic delivery was indicated by targets for levels of educator talk set for each session. Targets were based on earlier pilot work. Using the revised Illness Perceptions Questionnaire (IPQ-R) and the Diabetes Illness Representations Questionnaire (DIRQ), participants completed measures of: perceived duration of diabetes (timeline IPQ-R), understanding of diabetes (coherence IPQ-R), personal responsibility for influencing diabetes (personal responsibility IPQ-R), seriousness of diabetes (seriousness DIRQ) and impact on daily life (impact DIRQ), before and after the education programme.

RESULTS

Where data from the event coding indicated educators were talking less and meeting targets for being less didactic, a greater change in reported illness beliefs of participants was seen. However, educators struggled to meet targets for most sessions of the programme.

CONCLUSION

The amount of time educators talk in a self-management programme may provide a practical marker for the effectiveness of the education process, with less educator talk denoting a more facilitative/less didactic approach. This finding has informed subsequent improvements to a comprehensive quality development framework, acknowledging that educators need ongoing support to facilitate change to their normal educational style.

Effectiveness of the diabetes education and self management for ongoing and newly diagnosed (DESMOND) programme for people with newly diagnosed type 2 diabetes: cluster randomised controlled trial

OBJECTIVE

To evaluate the effectiveness of a structured group education programme on biomedical, psychosocial, and lifestyle measures in people with newly diagnosed type 2 diabetes.

DESIGN

Multicentre cluster randomised controlled trial in primary care with randomisation at practice level.

SETTING

207 general practices in 13 primary care sites in the United Kingdom.

PARTICIPANTS

824 adults (55% men, mean age 59.5 years).

INTERVENTION

A structured group education programme for six hours delivered in the community by two trained healthcare professional educators compared with usual care.

MAIN OUTCOME MEASURES

Haemoglobin A(1c) levels, blood pressure, weight, blood lipid levels, smoking status, physical activity, quality of life, beliefs about illness, depression, and emotional impact of diabetes at baseline and up to 12 months.

MAIN RESULTS

Haemoglobin A(1c) levels at 12 months had decreased by 1.49% in the intervention group compared with 1.21% in the control group. After adjusting for baseline and cluster, the difference was not significant: 0.05% (95% confidence interval -0.10% to 0.20%). The intervention group showed a greater weight loss: -2.98 kg (95% confidence interval -3.54 to -2.41) compared with 1.86 kg (-2.44 to -1.28), P=0.027 at 12 months. The odds of not smoking were 3.56 (95% confidence interval 1.11 to 11.45), P=0.033 higher in the intervention group at 12 months. The intervention group showed significantly greater changes in illness belief scores (P=0.001); directions of change were positive indicating greater understanding of diabetes. The intervention group had a lower depression score at 12 months: mean difference was -0.50 (95% confidence interval -0.96 to -0.04); P=0.032. A positive association was found between change in perceived personal responsibility and weight loss at 12 months (beta=0.12; P=0.008).

CONCLUSION

A structured group education programme for patients with newly diagnosed type 2 diabetes resulted in greater improvements in weight loss and smoking cessation and positive improvements in beliefs about illness but no difference in haemoglobin A(1c) levels up to 12 months after diagnosis.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN17844016 [controlled-trials.com].

Effectiveness of the diabetes education and self management for ongoing and newly diagnosed (DESMOND) programme for people with newly diagnosed type 2 diabetes: cluster randomised controlled trial

OBJECTIVE

To evaluate the effectiveness of a structured group education programme on biomedical, psychosocial, and lifestyle measures in people with newly diagnosed type 2 diabetes.

DESIGN

Multicentre cluster randomised controlled trial in primary care with randomisation at practice level.

SETTING

207 general practices in 13 primary care sites in the United Kingdom.

PARTICIPANTS

824 adults (55% men, mean age 59.5 years).

INTERVENTION

A structured group education programme for six hours delivered in the community by two trained healthcare professional educators compared with usual care.

MAIN OUTCOME MEASURES

Haemoglobin A(1c) levels, blood pressure, weight, blood lipid levels, smoking status, physical activity, quality of life, beliefs about illness, depression, and emotional impact of diabetes at baseline and up to 12 months.

MAIN RESULTS

Haemoglobin A(1c) levels at 12 months had decreased by 1.49% in the intervention group compared with 1.21% in the control group. After adjusting for baseline and cluster, the difference was not significant: 0.05% (95% confidence interval -0.10% to 0.20%). The intervention group showed a greater weight loss: -2.98 kg (95% confidence interval -3.54 to -2.41) compared with 1.86 kg (-2.44 to -1.28), P=0.027 at 12 months. The odds of not smoking were 3.56 (95% confidence interval 1.11 to 11.45), P=0.033 higher in the intervention group at 12 months. The intervention group showed significantly greater changes in illness belief scores (P=0.001); directions of change were positive indicating greater understanding of diabetes. The intervention group had a lower depression score at 12 months: mean difference was -0.50 (95% confidence interval -0.96 to -0.04); P=0.032. A positive association was found between change in perceived personal responsibility and weight loss at 12 months (beta=0.12; P=0.008).

CONCLUSION

A structured group education programme for patients with newly diagnosed type 2 diabetes resulted in greater improvements in weight loss and smoking cessation and positive improvements in beliefs about illness but no difference in haemoglobin A(1c) levels up to 12 months after diagnosis.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN17844016 [controlled-trials.com].

Effectiveness of the diabetes education and self management for ongoing and newly diagnosed (DESMOND) programme for people with newly diagnosed type 2 diabetes: cluster randomised controlled trial

OBJECTIVE

To evaluate the effectiveness of a structured group education programme on biomedical, psychosocial, and lifestyle measures in people with newly diagnosed type 2 diabetes.

DESIGN

Multicentre cluster randomised controlled trial in primary care with randomisation at practice level.

SETTING

207 general practices in 13 primary care sites in the United Kingdom.

PARTICIPANTS

824 adults (55% men, mean age 59.5 years).

INTERVENTION

A structured group education programme for six hours delivered in the community by two trained healthcare professional educators compared with usual care.

MAIN OUTCOME MEASURES

Haemoglobin A(1c) levels, blood pressure, weight, blood lipid levels, smoking status, physical activity, quality of life, beliefs about illness, depression, and emotional impact of diabetes at baseline and up to 12 months.

MAIN RESULTS

Haemoglobin A(1c) levels at 12 months had decreased by 1.49% in the intervention group compared with 1.21% in the control group. After adjusting for baseline and cluster, the difference was not significant: 0.05% (95% confidence interval -0.10% to 0.20%). The intervention group showed a greater weight loss: -2.98 kg (95% confidence interval -3.54 to -2.41) compared with 1.86 kg (-2.44 to -1.28), P=0.027 at 12 months. The odds of not smoking were 3.56 (95% confidence interval 1.11 to 11.45), P=0.033 higher in the intervention group at 12 months. The intervention group showed significantly greater changes in illness belief scores (P=0.001); directions of change were positive indicating greater understanding of diabetes. The intervention group had a lower depression score at 12 months: mean difference was -0.50 (95% confidence interval -0.96 to -0.04); P=0.032. A positive association was found between change in perceived personal responsibility and weight loss at 12 months (beta=0.12; P=0.008).

CONCLUSION

A structured group education programme for patients with newly diagnosed type 2 diabetes resulted in greater improvements in weight loss and smoking cessation and positive improvements in beliefs about illness but no difference in haemoglobin A(1c) levels up to 12 months after diagnosis.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN17844016 [controlled-trials.com].

Sparing the parotid glands and surgically transferred submandibular gland with helical tomotherapy in post-operative radiation of head and neck cancer: a planning study

BACKGROUND AND PURPOSE

To evaluate the feasibility of sparing the parotid glands and surgically transferred submandibular gland (SMG) by intensity modulated radiotherapy (IMRT) in post-operative cases of head and neck cancer (HNC).

MATERIALS AND METHODS

Ten patients (larynx-2, base of tongue-4, tonsil-3, and unknown primary-1; pathologic stages III-IV) who underwent SMG transfers on the side of N0 neck along with definitive surgery were selected for this study. IMRT planning was done retrospectively using helical tomotherapy approach. Planning objective was to deliver 60 Gy to PTV1 and 54 Gy to PTV2 while maintaining the mean dose to the total parotid volume (TPV) and SMG less than 26 Gy.

RESULTS

The mean dose (+/-SD) to the TPV and SMG were 25+/-0.6 Gy and 23+/-1.9 Gy, respectively. The D(95) for PTV1 and PTV2 were 59.9+/-0.1 Gy and 54.9+/-0.3 Gy, respectively, satisfying our planning goal for PTV coverage. The D(99) for PTV1 and PTV2 were 58.2+/-0.7 Gy and 49.5+/-2.2 Gy, respectively, showing that sparing the salivary glands did not result in underdosing of the PTVs.

CONCLUSIONS

By combining the gland transfer and IMRT, the mean dose to TPV and transferred SMG could be reduced to less than 26 Gy in post-operative patients of HNC.

Barriers to early diagnosis of cancer in primary care: a needs assessment of GPs

This is the first needs assessment of general practitioners (GPs) in relation to early detection of cancer in the Republic of Ireland. Data was collected using focus groups with 47 GPs and a national survey of 929 GPs. Overall,74.6% of survey respondents had >10 years experience in general practice and 22.7% were single handed. Distance from the practice to the nearest hospital to which they could refer patients for assessment of suspected cancer was <5 miles for 53.3% of GPs. The principle barriers identified were not confined to early diagnosis but apply to the diagnosis of cancer at any stage. These included delayed patient presentation, lack of direct GP access to investigations, difficulty with hospital referral, lack of clear recommendations for screening, poor communication with hospital services, inequitable access to hospital services and a need for further education and clinical practice guidelines. The barriers identified have serious implications for early detection of cancer in primary care and are remedial.

Diabetes Education and Self-Management for Ongoing and Newly Diagnosed (DESMOND): process modelling of pilot study

OBJECTIVE

To determine the effects of a structured education program on illness beliefs, quality of life and physical activity in people newly diagnosed with Type 2 diabetes.

METHODS

Individuals attending a diabetes education and self-management for ongoing and newly diagnosed (DESMOND) program in 12 Primary Care Trusts completed questionnaire booklets assessing illness beliefs and quality of life at baseline and 3-month follow-up, metabolic control being assessed through assay of HbA1c.

RESULTS

Two hundred and thirty-six individuals attended the structured self-management education sessions, with 97% and 64% completing baseline and 3-month follow-up questionnaires. At 3 months, individuals were more likely to: understand their diabetes; agree it is a chronic illness; agree it is a serious condition, and that they can affect its course. Individuals achieving a greater reduction in HbA1c over the first 3 months were more likely to agree they could control their diabetes at 3 months (r=0.24; p=0.05), and less likely to agree that diabetes would have a major impact on their day to day life (r=0.35; p=0.006).

CONCLUSION

Pilot data indicate the DESMOND program for individuals newly diagnosed with Type 2 diabetes changes key illness beliefs and that these changes predict quality of life and metabolic control at 3-month follow-up.

PRACTICE IMPLICATIONS

Newly diagnosed individuals are open to attending self-management programs and, if the program is theoretically driven, can successfully engage with the true, serious nature of diabetes.

Randomised, crossover comparison of the single-use SoftSeal?and the LMA Unique?laryngeal mask airways

We performed a randomised, crossover, single-blind trial among 168 patients, to compare the single-use SoftSeal and LMA Unique laryngeal mask airways in spontaneously breathing adults. Size-3 and -4 laryngeal mask airways, inserted by experienced anaesthetists, performed equivalently for successful first-time placement (148 (91%) vs 155 (96%) for the SoftSeal and LMA Unique, respectively). The SoftSeal was more often rated as difficult to insert (27 (17%) vs 4 (3%); p < 0.001) and was more likely to show evidence of mucosal trauma after the first insertion (14 (10%) vs 5 (4%); OR 1.3 (95% CI 1.3-11.3); p < 0.05). The fibreoptic view of the larynx was better through the SoftSeal (vocal cords not visible in 27 (17%) vs 44 (27%); p < 0.05) and it more frequently provided a ventilation seal at 20 cmH(2)O (93 (59%) vs 62 (39%); OR 2.15 (CI 1.44-3.21); p < 0.001). In contrast to the LMA Unique(trade mark), its cuff pressure did not increase during nitrous oxide anaesthesia (median (IQR [range]) decrease 3 (- 20-23 [-40-94]) cmH(2)O vs increase of 16 (-2-39 [-54-112]) cmH(2)O; p < 0.01). Both devices were equivalent for the success of first-time insertion and performed satisfactorily clinically. There were some performance differences, but either appears suitable for airway management in spontaneously breathing patients.

Developing and piloting a structured, stepped approach to patient education

The DESMOND initiative aims to provide patients with Type 2 diabetes with ongoing education about their condition from the point of diagnosis. The programme is in the process of developing a structured education curriculum that, combined with clinical management, will offer an integrated care pathway to patients.

A campaign to raise awareness of microalbuminuria screening

Both patients with diabetes and health-care professionals need to be aware that diabetes can cause kidney nephropathy. A simple urine test can detect problems with renal function at a very early stage. The DEMAND campaign has involved diabetes clinic nurses in a study to persuade them to perform this test routinely and to encourage patients to request it.

Hepatitis A transmission by factor IX concentrates

Factor IX concentrates unlike factor VIII concentrates have not to date been associated with the transmission of hepatitis A virus (HAV). A retrospective study by reverse transcriptase polymerase chain reaction on a batch of factor IX concentrate used to treat two haemophilia B patients who developed jaundice and IgM anti-HAV antibodies within 50 days of factor IX administration in 1985 revealed the presence of HAV RNA. These findings indicate that factor IX concentrates can transmit HAV and that appropriate viral inactivation steps to inactivate nonenveloped viruses as well as enveloped viruses are necessary to ensure the safety of factor IX concentrates.