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Biomedical subjects

R Dowie

Publications and source records attributed to R Dowie.

15 recordsLinked to original sources
PubMed2006

Liquid-based cytology can improve efficiency of cervical smear readers: evidence from timing surveys in two NHS cytology laboratories.

OBJECTIVE: Cervical screening programmes in England and Wales were advised by the National Institute for Clinical Excellence in 2003 to adopt liquid-based cytology (LBC) in place of conventional Papanicolaou (Pap) cytology to facilitate laboratory efficiency. Pilot evaluations in England and Scotland monitored daily or weekly workloads of smear readers and concluded that LBC could increase hourly throughput rates. This study, instead, used timing surveys to determine screening rates. METHODS: Two National Health Service cytology laboratories in Manchester and Stockport were partially converted to the LBC ThinPrep process for a cervical screening trial. Three 1-week timing surveys were conducted over 7 months. The surveys covered all LBC-trained staff. The first survey in Manchester also covered staff undertaking conventional Pap screening. The smear readers used timers to record time taken for examining and reporting each slide. RESULTS: In Manchester, in the first survey, nearly 1 minute per slide was saved by the LBC method during primary microscopy. In both laboratories, the mean microscopy time for primary screening of LBC slides was reduced by almost 1 minute between the first and second surveys. There was no difference between the second and third surveys. Microscopy by cytopathologists was also 1 minute per slide quicker with LBC than conventional Pap. The LBC inadequate rates for both laboratories were <2.0%. Organizational factors impacted on the hourly LBC primary screening rates in the laboratories, the rate for Stockport being higher than the rates in the pilot evaluations. CONCLUSIONS: The timing surveys confirm that the LBC ThinPrep technology can improve laboratory efficiency. However, decision-makers should also consider the overall costs and benefits of introducing the technology in screening programmes, including the capital investment and workforce implications.

Efficiency↗
PubMed2006

Assessing the wellbeing of cytoscreeners: experience in two NHS cytology laboratories.

OBJECTIVE: Cervical screening programmes in England are in transition as the liquid-based cytology (LBC) method replaces conventional Papanicolaou screening and staff in NHS laboratories are trained to analyse LBC smears. Cytoscreeners and biomedical scientists undertake routine microscopy of slides, but the scientists usually have a wider professional role. Attitudinal surveys were carried out in laboratories where LBC was partially introduced. METHODS: Staff in two cytology laboratories in Greater Manchester were surveyed twice over 6 months. The questionnaire assessed work pressures using scales from the Measures of Work Characteristics instrument, work-related stress using the General Survey version of the Maslach Burnout Inventory, job intentions and job satisfaction. RESULTS: Cytoscreeners, many aged over 50 years, formed over 60% of respondents in both surveys (27/42 in the first survey), and biomedical scientists and doctors, 30%. Both groups were under moderate pressure from work demands in each survey, but cytoscreeners had significantly less autonomy over their working methods (P < 0.001). Although both groups experienced similar levels of exhaustion, cytoscreeners were much more cynical or indifferent towards work in the second survey (P = 0.008) and had lower expectations of being effective (P < 0.001). For the cytoscreeners, there were strong negative correlations in both surveys between cynicism and the work characteristics of influencing decisions and autonomy/control. CONCLUSIONS: The strength of the relationship between work performance and wellbeing serves to emphasize the importance of the new LBC technology in ameliorating low morale where it exists. Further attitudinal research involving larger samples of laboratories is warranted to assess the full impact of this innovation.

Female↗
PubMed2004

Ambulance emergency services for patients with coronary heart disease in Lancashire: achieving standards and improving performance.

OBJECTIVES: To examine the performance of a rural ambulance trust during two time periods, 1996/97 and 2001, with respect to achieving standards for ambulance journey times and delivery of clinical care for patients with suspected acute myocardial infarction (AMI). METHODS: Audit datasets on two cohorts of patients with chest pain and suspected AMI were assembled by the Lancashire Ambulance Service NHS Trust in north west England: 3706 patients during 1996/97 and 3423 in 2001. They were transported to four hospitals. The analyses covered journey timings, role of rapid response vehicles (RRV), and clinical procedures and the results were compared with prevailing national standards. RESULTS: Hourly and daily usage patterns were similar in the two periods. During 1996/97 the national rural target of 95% of response times being within 19 minutes was achieved (96% of calls), unlike the target of 50% within eight minutes (45.3% of calls). During 2001, 2684 (78.4%) calls had response times within eight minutes thus exceeding the revised national target of 75%. RRVs were despatched for 1214 (35.5%) of calls in 2001, and the mean response time (SD) for these vehicles was significantly shorter than for front line ambulances (0:05:53 (0:02:49) versus 0:07:04 (0:04:19), p<0.001), likewise the mean call to hospital time (0:32:38 (0:09:28) v 0:35:01 (0:12:09), p<0.001). Patients in 2001 were more likely to be given aspirin by the ambulance crews (74% of cases), while the rate of cannulation was lower. CONCLUSION: A significant improvement has been achieved in the performance of ambulance services in Lancashire since 1996, because of recently introduced strategies, notably RRVs, and in the presence of more demanding national standards and targets.

Ambulances↗
PubMed2001

Cost analysis of a hospital-at-home initiative using discrete event simulation.

OBJECTIVES: To examine whether, from a National Health Service (NHS) and local authority social services' viewpoint, a hospital-at-home service was cost saving compared with conventional inpatient care. METHODS: The subjects of this part-retrospective and part-prospective cost analysis were 51 elderly medical and orthopaedic surgical patients assessed at Hillingdon Hospital, West London, as being suitable for hospital-at-home care. Thirty patients received hospital-at-home care, provided for up to 14 days, while 21 patients remained in hospital and received standard inpatient care. All direct costs to the NHS hospital, community health services' provider and social services' department during the initial episode of care and the three months after discharge were collected for each group of patients. Costs and clinical event data were entered in a discrete event simulation model which generated baseline results. Uncertainty surrounding the model's parameters was explored using sensitivity analysis. RESULTS: The baseline simulation performed with 1000 patients in each group showed the mean cost per patient for hospital-at-home care and three-month follow-up to be around three-fifths the mean cost per patient of inpatient care and follow-up. Most of the excess cost in the inpatient group was attributable to the initial period of hospitalisation. Under all assumptions used in the sensitivity analysis, the hospital-at-home service was less costly. CONCLUSIONS: For elderly patients assessed as needing no more than 14 days of hospital care, hospital-at-home care is cost saving to health and social care agencies when compared with conventional inpatient care.

Aged↗
PubMed1998

A review of research in the United Kingdom to evaluate the implementation of clinical guidelines in general practice.

BACKGROUND: An advisory group for the NHS research and development (R&D) programme recommended in 1993 that the impact of clinical guidelines at the interface between primary and secondary care should be a research priority area. In 1994, a systematic review of 91 published evaluations of implementing clinical guidelines identified only seven UK general practice studies. OBJECTIVE: In this inquiry we aimed to determine the number of randomized studies of clinical guideline implementation in primary care being conducted in the UK in 1996 and to review the research designs. METHODS: A national health research register was interrogated for all projects relating to clinical guidelines. The investigators were contacted to establish the nature of their project and to identify implementation studies that they knew to be going on elsewhere. Copies of protocols or briefing documents were obtained from the project teams for the identified studies. RESULTS: Thirteen randomized studies in general medical practice and one in general dental practice were identified. Guidelines were being introduced to aid diagnostic decision-making, prescribing practice or referral to hospital-based services. Eight strategies for promoting guideline adherence were being evaluated. Six studies proposed to conduct economic evaluations of the intervention packages. CONCLUSION: Twelve of the 14 studies were funded by the NHS R&D programme. Since there will be a considerable time delay before all 14 studies and a number of newer studies are fully reported, it seems imperative that information of the sort collected in this inquiry be made available, preferably in the National Research Register.

Humans↗
PubMed1998

A decision analytic approach to commissioning ambulance cardiac services.

The paper discusses how a decision analytic framework has been used by an English health authority in relation to the commissioning of ambulance cardiac services. Strategies for the management by ambulance personnel of victims of cardiac arrest and persons with acute chest pain of cardiac origin were modelled in a decision-event tree, and a bibliographic database established. The international research literature prior to 1997 was searched in order to derive probability values for the tree. However, after checking whether the subgroupings of results in the papers were in accordance with the variables in the tree, the number of useful papers on acute chest pain was found to be only two. In the almost complete absence of information--even from small observational studies--on the management of the great majority of patients with cardiac symptoms transported by ambulance, the local ambulance service and the main providers of hospital services in the district are now collaborating in field studies of cardiac care in order to improve the inputs into the model.

Algorithms↗
PubMed1995

Health services research in the United Kingdom 1990-1992.

BACKGROUND: Shortly before the National Health Service (NHS) research and development (R&D) strategy was launched in April 1991, the Department of Health commissioned a study to collect information on current health services research and related work in the United Kingdom. The term 'health services research' was interpreted as research that could usefully inform the contracting arrangements in the reformed NHS. METHODS: The information was collected from funding agencies, in particular the UK health departments, the Medical Research Council and medical research charities; academic departments and research units and centres; NHS authorities; and research registers and directories. A total of 6185 projects that were either in progress or completed between January 1990 and mid-1992 were identified. RESULTS: Forty-three per cent of projects were disease related; 33 per cent assessed health technologies. Patterns were evident in the database. Sixty-three per cent of the projects on diseases were covered by five categories: cancer, the largest category with a quarter of the disease projects; perinatal medicine; cardiovascular disease and stroke; HIV and AIDS; and mental illness. Conditions that cause severe discomfort but are not life threatening were poorly represented. Clinical trials formed 25 per cent of the health technology projects, but only 6 per cent of the trials assessed surgical procedures. Less than 10 per cent of all health technology projects contained a costing component. In England, 34 per cent of projects with identified funding sources were supported by medical charities and other independent bodies, 31 per cent by NHS authorities, 20 per cent by the Department of Health and 15 per cent by the research councils. CONCLUSION: This collection of information represents a 'snapshot' of the scope of health services research against which it will be possible to measure the changes promoted by the NHS R&D programme.

Clinical Trials as Topic↗
PubMedDate not supplied

Assessing economics of treatments for gynecological cancer where clinical effectiveness meets value for money.

During the last 10 years, the management of gynecological cancer has been undergoing a great deal of change. This is due to a drive to reduce ineffective treatment and associated morbidity while at the same time maximizing the benefits of currently available treatment. The foundation for this approach has been high-quality clinical trials which have been performed in increasing numbers. These trials can provide strong evidence that treatments are equivalent or that a new drug adds superiority to previous treatment. The access that women have to the most effective forms of treatment often depends on the availability of healthcare resources and their affordability within the healthcare system. Healthcare decision makers increasingly require not just clinical effectiveness of treatments but also cost-effectiveness to be demonstrated. While health economic methods have been applied to many forms of cancer treatment and screening, there have been very few rigorous economic studies performed in gynecological cancer. This article discusses how economic analysis can be incorporated into clinical trials and how it can provide the sort of value for money determination that payers of healthcare are now requiring. Economic analysis may add a little to the cost of trials, but in the end, it may increase access to treatment by convincing decision makers of cost-effectiveness.

Clinical Trials as Topic↗