Report on the creation of a diabetes register and retinopathy screening outcomes in the Mid-West of Ireland

BACKGROUND

With concerns that blind registration in Ireland due to diabetic retinopathy is continuing to rise, a structured retinopathy screening service is in the process of being rolled out nationally.

AIMS

To report on the validation process for creating a register of diabetics in the Mid-West of Ireland, and findings following retinopathy screening of a representative sample.

METHODS

National primary care databases were employed in generating provisional lists of diabetic patients in the Health Service Executive (HSE) Mid-West area. Subsequent engagement with the corresponding general practices over a three year period between 2010 and 2013 facilitated the validation of these lists. A summary of the retinopathy screening outcomes of 1,434 patients and pre-existing screening patterns is reported.

RESULTS

The number of patients on the Mid-West diabetes register to date is 11,126. Of the 1,434 patients screened, 288 (20.1 %) had background retinopathy, while 117 (8.2 %) had sight-threatening retinopathy. Seventeen (19.8 %) of the 86 patients identified with maculopathy required treatment with intravitreal injections. Of the 610 patients questioned about previous screening events, 389 (63.8 %) said they had undergone an ocular examination within the previous 12 months.

CONCLUSIONS

The HSE Mid-West has over 11,000 patients on its database ready to be screened by the national programme, with the treatment of maculopathy expected to have the largest impact on resources. Although the majority of patients are already undergoing screening in the community in an ad hoc fashion, the rates of sight-threatening retinopathy encountered highlight the timeliness of the full implementation of the national programme.

A quantitative analysis of diabetic retinopathy screening in a regional treatment centre

The aim of the study was to assess the current diabetic retinopathy screening infrastructure and implications on workload for a designated treatment centre following roll-out of a national screening programme. A combination of chart analysis and patient questionnaire was undertaken over a 4-week period in 2011 at Cork University Hospital (CUH). Data were collected on 97 patients and categorized. as demographic, medical, and screening-related. The majority of patients (80; 82.5%} had either no retinopathy or background retinopathy only. One (1.0%) patient was deemed to be ungradable due to dense cataract, while 6 (6.2%) patients had non-diabetic ocular pathology requiring follow-up. Only 11% were screened through retinal photography. In all, 74 (76.3%) patients were deemed suitable for community rather than hospital screening. Digital retinal photography is an underused screening resource Significant numbers of patients could be discharged from hospital-based to community screening to offset the increased workload expected from the national screening programme.

Neurobehavioural changes in a patient with bilateral lesions of the globus pallidus

This study has characterized the long-term neurobehavioural changes in a woman who, following the intake of an unidentified substance, sustained subtotal bilateral lesions of the globus pallidus and small lesions at selective sites adjacent to it. Associated with these lesions was a significantly reduced blood flow in multiple frontal cortical regions, most prominently in area 10, the anterior cingulate and the supplementary motor cortex. Her cognitive deficits were generally consistent with those found in patients with frontal lobe dysfunction but some deficits, i.e. in visual memory and learning, were more compatible with temporal lobe dysfunction. Incapacitating personality or obsessive compulsive changes as reported by others with similar lesions were absent and she could live independently. The cognitive changes are consistent with the view that the globus pallidus has important functions in mediating how internal representations of stimulus input are converted into various forms of action, for example, in planning solutions to problems and in working memory.

Characteristics and perspectives of night-eating behaviour in a severely obese population

WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT

Night-eating syndrome (NES) can be a feature of severe obesity. NES is a dysfunction of circadian rhythm and is associated with impaired sleep.

WHAT THIS STUDY ADDS

Night eaters with severe obesity are more likely to be low in mood and unemployed compared with non-night eaters. Night eaters with severe obesity describe compulsive and uncontrolled eating. Research interest in night-eating syndrome (NES) has grown in recent years in line with increased rates of obesity. This study used a mixed-methods approach to investigate its characteristics in severe obesity. Eighty-one individuals (mean [standard deviation] age 44.6 [11.6] years, [body mass index] 50.0 [10.7] kg m(-2) ; 43% men) from a hospital-based UK obesity clinic were interviewed for NES based on 2003 criteria. Full and partial NES were combined into one night-eating behaviour (NEB) group (n = 31). Demographic and clinical characteristics were compared with those of non-NEB individuals (n = 50). NEB characteristics were also identified through exploratory thematic analysis of interview data. NEB individuals had lower mood (P = 0.01) and were less likely to be employed (P = 0.03). Differences in mean age and reported sleep duration were not significant. Thematic analysis of patient perceptions of NEB highlighted the potential heterogeneity of NEB development: NEB developed in childhood, adolescence and adulthood. Individuals reported long-standing and current sleep difficulties, negative affect and conflictful relationships. Night eating was solitary, compulsive and uncontrolled, and daytime eating patterns were chaotic. Accounts of awareness of night eating were conflicting. Severely obese night eaters are characterized by low mood and lack of employment. Further studies are required to explore behavioural and cognitive influences on night eating in severe obesity.

Management of Asthma in School age Children On Therapy (MASCOT): a randomised, double-blind, placebo-controlled, parallel study of efficacy and safety

BACKGROUND

Asthma affects one in eight children in the UK. National management guidelines have been available for many years but, unlike in adults, studies in children have been few, with their methodologies often based on inappropriate adult models. Sound medical evidence in support of the national guidelines for asthma management in children is lacking. The MASCOT study has been developed to address this need.

OBJECTIVES

To determine whether adding salmeterol or montelukast to low-dose inhaled corticosteroids (ICSs) can reduce the number of exacerbations requiring treatment with oral corticosteroids in children with uncontrolled asthma.

DESIGN

A randomised, double-blind, placebo-controlled trial with a 4-week run-in period on a fluticasone propionate inhaler (100 µg twice daily) with inhaler technique correction. Patients who met the post run-in period eligibility criteria were randomised in the ratio of 1 : 1 : 1 and were followed for 48 weeks.

SETTING

Secondary care hospitals based in England and Scotland with recruitment from primary and secondary care.

PARTICIPANTS

Children aged 6-14 years with asthma requiring frequent short-acting beta-2 agonist relief, with symptoms of asthma resulting in nocturnal wakening and/or asthma that has interfered with usual activities.

INTERVENTIONS

Three groups were compared: (1) inhaled fluticasone propionate 100 µg twice daily plus placebo tablet once daily; (2) inhaled fluticasone propionate 100 µg and salmeterol 50 µg twice daily (combination inhaler) plus placebo tablet once daily; and (3) inhaled fluticasone propionate 100 µg twice daily plus montelukast 5-mg tablet once daily.

MAIN OUTCOME MEASURES

The primary outcome was the number of exacerbations requiring treatment with oral corticosteroids over 48 weeks. Secondary outcome measures included quality of life as measured by the Paediatric Asthma Quality of Life Questionnaire with Standardised Activities [PAQLQ(S)] and the Paediatric Asthma Caregiver's Quality of Life Questionnaire (PACQLQ); time from randomisation to first exacerbation requiring treatment with a short course of oral corticosteroids; school attendance; hospital admissions; amount of rescue beta-2 agonist therapy prescribed; time from randomisation to treatment withdrawal (because of lack of efficacy or side effects); lung function at 48 weeks (as assessed by spirometry); cost-effectiveness; adverse events.

RESULTS

The study was closed prematurely because of poor recruitment and the target sample size of 450 was not achieved. In total, 898 children were screened to enter the trial, 166 were registered for the 4-week run-in period and 63 were randomised (group 1: 19, group 2: 23, group 3: 21), with 38 contributing data for the primary outcome analysis. There were no significant differences between groups for any of the outcomes. Adverse events were similar between the groups except for nervous system disorders, which were more frequently reported on fluticasone plus montelukast.

CONCLUSIONS

Based on the results of the MASCOT study it is not possible to conclude whether adding salmeterol or montelukast to ICSs can reduce the number of exacerbations requiring treatment with oral corticosteroids in children with uncontrolled asthma.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN03556343.

FUNDING

This project was funded by the NIHR Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 17, No. 4. See the HTA programme website for further project information.

Invited article: polarization "down under": the polarized time-of-flight neutron reflectometer PLATYPUS

This review presents the implementation and full characterization of the polarization equipment of the time-of-flight neutron reflectometer PLATYPUS at the Australian Nuclear Science and Technology Organisation (ANSTO). The functionality and efficiency of individual components are evaluated and found to maintain a high neutron beam polarization with a maximum of 99.3% through polarizing Fe/Si supermirrors. Neutron spin-flippers with efficiencies of 99.7% give full control over the incident and scattered neutron spin direction over the whole wavelength spectrum available in the instrument. The first scientific experiments illustrate data correction mechanisms for finite polarizations and reveal an extraordinarily high reproducibility for measuring magnetic thin film samples. The setup is now fully commissioned and available for users through the neutron beam proposal system of the Bragg Institute at ANSTO.

Leiomyoma: an unusual bladder neoplasm

The authors present a case of a 42-year-old lady who visited her gynaecologist with dysuria and a sensation of incomplete voiding for 2 weeks. Urine culture grew Escherichia coli and blood studies were normal. Pelvic ultrasound revealed a smooth well-defined mass arising from the bladder wall. She was referred to the urologist who requested CT and MRI for further evaluation. These modalities confirmed an intramural bladder mass with normal overlying mucosa. The mass was deemed contributory to her symptoms and a decision was made to excise the mass surgically. Via a transurethral approach, cystoscopy revealed a smooth well-circumscribed intramural mass. This was partially excised. The mass was found to be a leiomyoma. Except for an uncomplicated urinary tract infection, her postoperative course has been uneventful.