Thromboprophylaxis during pregnancy and the puerperium: a systematic review and economic evaluation to estimate the value of future research.

Background: Pharmacological prophylaxis to prevent venous thromboembolism is currently recommended for women assessed as being at high risk of venous thromboembolism during pregnancy or in the 6 weeks after delivery (the puerperium). The decision to provide thromboprophylaxis involves weighing the benefits, harms and costs, which vary according to the individual's venous thromboembolism risk. It is unclear whether the United Kingdom's current risk stratification approach could be improved by further research. Objectives: To quantify the current decision uncertainty associated with selecting women who are pregnant or in the puerperium for thromboprophylaxis and to estimate the value of one or more potential future studies that would reduce that uncertainty, while being feasible and acceptable to patients and clinicians. Methods: A decision-analytic model was developed which was informed by a systematic review of risk assessment models to predict venous thromboembolism in women who are pregnant or in the puerperium. Expected value of perfect information analysis was used to determine which factors are associated with high decision uncertainty and should be the target of future research. To find out whether future studies would be acceptable and feasible, we held workshops with women who have experienced a blood clot or have been offered blood-thinning drugs and surveyed healthcare professionals. Expected value of sample information analysis was used to estimate the value of potential future research studies. Results: The systematic review included 17 studies, comprising 19 unique externally validated risk assessment models and 1 internally validated model. Estimates of sensitivity and specificity were highly variable ranging from 0% to 100% and 5% to 100%, respectively. Most studies had unclear or high risk of bias and applicability concerns. The decision analysis found that there is substantial decision uncertainty regarding the use of risk assessment models to select high-risk women for antepartum prophylaxis and obese postpartum women for postpartum prophylaxis. The main source of decision uncertainty was uncertainty around the effectiveness of thromboprophylaxis for preventing venous thromboembolism in women who are pregnant or in the puerperium. We found that a randomised controlled trial of thromboprophylaxis in obese postpartum women is likely to have substantial value and is more likely to be acceptable and feasible than a trial recruiting women who have had a previous venous thromboembolism. In unselected postpartum women and women following caesarean section, the poor performance of risk assessment models meant that offering prophylaxis based on these models had less favourable cost effectiveness with lower decision uncertainty. Limitations: The performance of the risk assessment model for obese postpartum women has not been externally validated. Conclusions: Future research should focus on estimating the efficacy of pharmacological thromboprophylaxis in pregnancy and the puerperium, and clinical trials would be more acceptable in women who have not had a previous venous thromboembolism. Study registration: This study is registered as PROSPERO CRD42020221094. Funding: This award was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme (NIHR award ref: NIHR131021) and is published in full in Health Technology Assessment; Vol. 28, No. 9. See the NIHR Funding and Awards website for further award information.

Women who are pregnant or who have given birth in the previous 6 weeks are at increased risk of developing blood clots that can cause serious illness or death. Small doses of blood thinners given by injection are safe in pregnancy and can reduce the risk of blood clots, but they can slightly increase the risk of bleeding. Healthcare professionals use risk assessment tools to decide if a woman is at high risk of blood clots and should be offered blood thinners. We wanted to find out what research would be useful to help them make better decisions. We reviewed previous research to establish which risk assessment tools are best at predicting who will have a blood clot. We then created a mathematical model to predict what would happen when using different risk assessment tools to decide who should be offered blood thinners, both during pregnancy and after giving birth. We found that there was a lot of uncertainty about which women should be offered blood thinners. This was mainly because there have only been a few small studies comparing blood thinners to no treatment in pregnant women or women who have recently given birth. We estimated the value of future studies comparing blood thinners to no treatment, in groups of women with different risk factors, by predicting what information we would gain and how this would be used to improve decisions about using blood thinners. To find out whether these studies would be acceptable and feasible, we held workshops with women who have experienced a blood clot or have been offered blood thinners and surveyed healthcare professionals. We found that a study in obese women who have recently given birth would have substantial value and may be more acceptable than a study in pregnant women with a previous blood clot.

How consistent are pre-alert guidelines? A review of UK ambulance service guidelines.

Aims: Ambulance pre-alerts are used to inform receiving emergency departments (EDs) of the arrival of critically unwell or rapidly deteriorating patients who need time-critical assessment or treatment immediately upon arrival. Inappropriate use of pre-alerts can lead to EDs diverting resources from other critically ill patients. However, there is limited guidance about how pre-alerts should be undertaken, delivered or communicated. We aimed to map existing pre-alert guidance from UK NHS ambulance services to explore consistency and accessibility of existing guidance. Methods: We contacted all UK ambulance services to request documentation containing guidance about pre-alerts. We reviewed and mapped all guidance to understand which conditions were recommended for a pre-alert and alignment with Association of Ambulance Chief Executives (AACE) and Royal College of Emergency Medicine (RCEM) pre-alert guidance. We reviewed the language and accessibility of guidance using the AGREE II tool. Results: We received responses from 15/19 UK ambulance services and 10 stated that they had specific pre-alert guidance. We identified noticeable variations in conditions declared suitable for pre-alerts in each service, with a lack of consistency within each ambulance service's own guidance, and a lack of alignment with the AACE/RCEM pre-alert guidance. Services listed between four and 45 different conditions suitable for pre-alert. There were differences in physiological thresholds and terminology, even for conditions with established care pathways (e.g. hyperacute stroke, ST segment elevation myocardial infarction). Pre-alert criteria were typically listed in several short sections in lengthy handover procedure policy documents. Documents appraised were of poor quality with low scores below 35% for applicability and overall. Implications: There is a clear need for ambulance services to have both policies and tools that complement each other and incorporate the same list of pre-alertable conditions. Clinicians need a single, easily accessible document to refer to in a time-critical situation to reduce the risk of making an incorrect pre-alert decision.

Estimating the value of future research into thromboprophylaxis for women during pregnancy and after delivery: a value of information analysis.

BACKGROUND: Risk assessment models (RAMs) are used to select women at increased risk of venous thromboembolism (VTE) during pregnancy and the puerperium for thromboprophylaxis. OBJECTIVES: To estimate the value of potential future studies that would reduce the decision uncertainty associated with offering thromboprophylaxis according to available RAMs in the following groups: high-risk antepartum women (eg, prior VTE), unselected postpartum women, and postpartum women with risk factors (obesity or cesarean delivery). METHODS: A decision-analytic model was developed to simulate clinical outcomes, lifetime costs, and quality-adjusted life-years for different thromboprophylaxis strategies, including thromboprophylaxis for all, thromboprophylaxis for none, and RAM-based thromboprophylaxis. The expected value of perfect information analysis was used to determine which factors are associated with high decision uncertainty. The value of future research studies was estimated using expected value of sample information analysis. Costs were assessed from a health and social services perspective. RESULTS: The expected value of perfect information analysis identified high decision uncertainty for high-risk antepartum women (£21.8 million) and obese postpartum women (£13.4 million), which was largely attributable to uncertainty regarding the effectiveness of thromboprophylaxis in reducing VTE. A randomized controlled trial of thromboprophylaxis compared with none in obese postpartum women is likely to have substantial value (£2.8 million; 300 participants per arm). A trial in women with previous VTE would have higher value but would be less acceptable. CONCLUSION: Future research should focus on estimating the effectiveness of thromboprophylaxis in obese postpartum women with additional risk factors who have not had a previous VTE.

How could online NHS 111 reduce demand for the telephone NHS 111 service? Qualitative study of user and staff views.

BACKGROUND: Online NHS111 was introduced in 2018 in response to increasing and unsustainable demand for telephone NHS111. Despite high levels of use, there is little evidence of channel shift from the telephone to the online service. We explored user and staff perspectives of online NHS111 to understand how and why online NHS111 is used and whether there may be potential for shift from the telephone to online service. METHODS: As part of a wider mixed-methods study, we used qualitative semistructured interviews to explore perspectives of recent users of online 111 who had responded to a user survey (n=32) and NHS 111 staff (n=16) between November 2019 and June 2020. Interviews were recorded and transcribed verbatim. The data sets were analysed separately using framework analysis (user interviews) and thematic analysis (staff interviews). RESULTS: Telephone NHS111 health adviser skills in probing and obtaining 'soft information' were perceived as key to obtaining advice that was considered more appropriate and trusted than advice from online interactions, which relied on oversimplified or irrelevant questions.Online NHS111 was perceived to provide a useful and convenient adjunct to the telephone service and widened access to NHS111 services for some subgroups of users who would not otherwise access the telephone service (eg, communication barriers, social anxiety) or were concerned about 'bothering' a health professional. The nature of the online consultation meant that online NHS111 was perceived as more disposable and used more speculatively. CONCLUSION: Online 111 was perceived as a useful adjunct but not a replacement for telephone NHS 111 with potential for channel shift hindered by reduced confidence in the online service due to the lack of human interaction. Further development of OL111 algorithms will be required if it is to meet the needs of people with more complex health needs.

Why is pain management so difficult in the Emergency Department? A systematic mixed studies review and thematic synthesis of staff perceptions of enablers and barriers to pain management within the Emergency Department.

INTRODUCTION: Pain is the most common presenting feature within the ED, yet undertreatment of pain in the ED is a well-documented problem worldwide. Despite the development of interventions to address this problem, there is still limited understanding of how pain management can be improved within the ED. This systematic mixed studies review aims to identify and critically synthesise research exploring staff views of barriers and enablers to pain management to understand why pain continues to be undertreated in the ED. METHODS: We systematically searched five databases for qualitative, quantitative and mixed methods studies reporting ED staff views of barriers and enablers to pain management in the ED. Studies were quality assessed using the Mixed Methods Appraisal Tool. Data were extracted and qualitative themes were generated by deconstructing data then developing interpretative themes. Data were analysed using convergent qualitative synthesis design. RESULTS: We identified 15 297 articles for title/abstract review, reviewed 138 and included 24 in the results. Studies were not excluded due to low quality, although lower scoring studies contributed less data to the analysis. Quantitative surveys focused more on environmental factors (eg, high workload and bureaucratic restrictions), while qualitative studies revealed more insight about attitudes. We developed five interpretative themes from the thematic synthesis: (1) pain management is seen as important but not a clinical priority; (2) staff do not recognise the need to improve pain management; (3) the ED environment makes it difficult to improve pain management; (4) pain management is based on experience, not knowledge; and (5) staff lack trust in the patient's ability to judge pain or manage it appropriately. CONCLUSIONS: Overly focusing on environmental barriers as principal barriers to pain management may mask underlying beliefs that hinder improvements. Improving feedback on performance and addressing these beliefs may enable staff to understand how to prioritise pain management.

Stakeholder perspectives of piloting pre-hospital COVID-19 lateral flow testing and direct admissions pathway: exploring why well-received ideas have low uptake.

Introduction: In January 2021, Yorkshire Ambulance Service and Hull University Teaching Hospitals implemented a pilot COVID-19 lateral flow testing (LFT) and direct admissions pathway to assess the feasibility of using pre-hospital LFTs to bypass the emergency department. Due to lower than anticipated uptake of the pilot among paramedics, we undertook a process evaluation to assess reasons for low uptake and perceived potential benefits and risks associated with the pilot. Methods: We undertook semi-structured telephone interviews with 12 paramedics and hospital staff. We aimed to interview paramedics who had taken part in the pilot, those who had received the project information but not taken part and ward staff receiving patients from the pilot. We transcribed interviews verbatim and analysed data using thematic analysis. Results: Participation in the pilot appeared to be positively influenced by high personal capacity for undertaking research (being 'research-keen') and negatively influenced by 'COVID-19 exhaustion', electronic information overload and lack of time for training. Barriers to use of the pathway related to 'poor timing' of the pilot, restrictive patient eligibility and inclusion criteria. The rapid rollout meant that paramedics had limited knowledge or awareness of the pilot, and pilot participants reported poor understanding of the pilot criteria or the rationale for the criteria. Participants who were involved in the pilot were overwhelmingly positive about the intervention, which they perceived as having limited risks and high potential benefits to the health service, patients and themselves, and supported future roll-out. Conclusions: Ambulance clinician involvement in rapid research pilots may be improved by using multiple recruitment methods (electronic and other), providing protected time for training and increased direct support for paramedics with lower personal capacity for research. Improved communication (including face-to-face approaches) may help understanding of eligibility criteria and increase appropriate recruitment.

What does the ideal urgent and emergency care system look like? A qualitative study of service user perspectives.

BACKGROUND: Policies aimed at diverting care from EDs to alternative services have not been successful in reducing ED attendances and have contributed to confusion for service users when making care-seeking decisions. It is important that service users are at the heart of decision making to ensure new services meet the needs of those who will be accessing them. In this study, service users were encouraged to think freely about the desirable qualities of an ideal urgent and emergency care (UEC) system. METHODS: From September to February 2019, an open inductive methodology was used to conduct focus groups with service users who had used UK UEC services within the previous year. Service users that had contact with NHS111, ambulance service, General Practice out-of-hours, minor injuries unit, walk-in centre or ED were purposively sampled and stratified into the following groups: (1) 18-45 years; (2)≥75 years; (3) adults with young children; (4) adults with long-term conditions. Focus groups were structured around experiences of accessing UEC services and perspectives of an 'ideal' UEC system. RESULTS: 30 service users took part in the study, across four focus groups. The ideal UEC system centred around three themes: a simplified UEC system (easier to understand and a single-point of access); more 'joined-up' UEC services and better communication between health staff and patients. CONCLUSION: Desirable qualities of an ideal UEC system from a service user perspective related to simplifying access for example, through a single point of access system where health professionals decide the appropriate service required and improving continuity of care through better integration of UEC services. Service users value reassurance and communication from health professionals about care pathways and care choices, and this helps service users feel more in control of their healthcare journey.

How can pain management in the emergency department be improved? Findings from multiple case study analysis of pain management in three UK emergency departments.

INTRODUCTION: Inadequate pain management in EDs is a worldwide problem, yet there has been little progress in understanding how pain management can be improved. There is only weak evidence and limited rationale to support interventions to improve pain management. We used naturalistic, qualitative methods to understand the factors that influence how pain is managed within the adult ED. METHODS: We used a multiple case study design incorporating 143-hour non-participant observation, documentary analysis and semistructured interviews with 37 staff and 19 patients at three EDs in the North of England between 2014 and 2016. We analysed data using thematic analysis. RESULTS: Our analysis demonstrated that pain management was not well aligned with the core priorities of the ED and was overlooked when other works took priority. We identified that (1) pain management was not perceived to be a key organisational priority for which staff were held accountable and staff had limited awareness of their performance, (2) pain management was not a core component of ED education and training, (3) ED processes and structures were not aligned with pain management and pain reassessment was overlooked unless staff escalated pain management outside of normal processes and (4) staff held embedded beliefs that conceptualised pain management as distinct from core priorities and limited their capacity to improve. However, EDs were able to improve pain management by aligning processes of pain management with other core works, particularly patient flow (eg, nurse-initiated analgesia at triage). IMPLICATIONS: EDs may be able to improve pain management by ensuring pain management processes align with key ED priorities. Undertaking multifaceted changes to structures and processes may enable staff to improve pain management and develop a culture in which pain management can be prioritised more easily. Future interventions need to be compatible with the wider work of the ED and enable patient flow in order to be adopted and maintained.

The Reality of Pain Scoring in the Emergency Department: Findings From a Multiple Case Study Design.

STUDY OBJECTIVE: Documentation of pain severity with pain scores is recommended within emergency departments (EDs) to improve consistency of assessment and management of pain. Pain scores are used in treatment guidelines and triage algorithms to determine pain management and in audit and research to evaluate pain management practices. Despite significant debate of their benefits, there has been limited evaluation of their use in practice. We use naturalistic, qualitative methods to understand how pain scores are used in practice and the mechanisms by which pain scoring may influence pain management. METHODS: We undertook a multiple case study design, using qualitative research in 3 EDs in England (the cases). Case studies incorporated 143 hours of nonparticipant observation, documentary analysis, and semistructured interviews with 36 staff and 19 patients. Data were analyzed with thematic analysis. RESULTS: Analysis identified that ED staff used the pain score for 2 conflicting purposes: as an auditable tool for guiding patient management and as a tool for monitoring patient experience. This led to ED staff's facing conflict between reporting their own judgment of what the pain score ought to be and what the patient said it was. Staff justified recording their own judgment according to concerns of accountability and appropriateness of management decisions. Staff thought that pain scoring had value in raising awareness and prompting action. CONCLUSION: In practice, pain scoring may not accurately reflect patient experience. Using pain scoring to determine the appropriateness of triage and treatment decisions reduces its validity as a measure of patient experience. Pain scoring should not be central to audit and systems of accountability for pain management.

Is primary angioplasty an acceptable alternative to thrombolysis? Quantitative and qualitative study of patient and carer satisfaction.

OBJECTIVE: The National Infarct Angioplasty Project assessed the feasibility of establishing a comprehensive primary angioplasty service. We aimed to compare satisfaction at intervention hospitals offering angioplasty-based care and control hospitals offering thrombolysis-based care. DESIGN: Mixed methods, with postal survey of patients and their carers, supported by semi-structured interviews. SETTING AND PARTICIPANTS: Survey of 682 patients and 486 carers, and interviews with 33 patients and carers, in eight English hospitals. INTERVENTIONS: Primary angioplasty or thrombolysis. MAIN OUTCOME MEASURES: Satisfaction with treatment. RESULTS: Responses were received from 595/682 patients (87%) and 418/486 carers (86%). Satisfaction with overall care was high at both intervention and control sites (78% vs. 71% patients rated their care as 'excellent', P = 0.074). Patient satisfaction was higher at intervention sites for some aspects of care such as speed of treatment (80% vs. 67%'excellent', P = 0.001). Convenience of visiting was rated lower at intervention sites by carers (12% vs. 1%'poor', P = 0.001). During interviews, carers reported that they accepted the added inconvenience of visiting primary angioplasty sites in the context of this life-saving treatment. Patient satisfaction with discharge and aftercare was lower in both treatment groups than for other aspects of care. CONCLUSIONS: Reorganization of care to offer a primary angioplasty service was acceptable to patients and their carers. Satisfaction levels were high regardless of the type of care received, with the exception of discharge and aftercare.

The accuracy of MRI in diagnosis of suspected deep vein thrombosis: systematic review and meta-analysis.

Magnetic resonance imaging (MRI) may be used to diagnose deep vein thrombosis (DVT) in patients for whom ultrasound examination is inappropriate or unfeasible. We undertook a systematic review of the literature and meta-analysis to estimate the diagnostic accuracy of MRI for DVT. We searched databases of medical literature and citation lists of retrieved articles. We selected studies that compared MRI with a reference standard in patients with suspected DVT or suspected pulmonary embolus, or high-risk asymptomatic patients. Data were analysed by random effects meta-analysis. We included 14 articles in the meta-analysis. Most compared MRI with venography in patients with clinically suspected DVT. The pooled estimate of sensitivity was 91.5% (95% CI: 87.5-94.5%) and the pooled estimate of specificity was 94.8% (95% CI: 92.6-96.5%). Sensitivity for proximal DVT was higher than sensitivity for distal DVT (93.9% versus 62.1%). However, pooled estimates should be interpreted with caution as estimates of both sensitivity and specificity were subject to significant heterogeneity (P<0.001). Individual studies reported sensitivity ranging from zero to 100%, while specificity ranged from 43 to 100%. MRI has equivalent sensitivity and specificity to ultrasound for diagnosis of DVT, but has been evaluated in many fewer studies, using a variety of different techniques.

Advanced access: more than just GP waiting times?

BACKGROUND: Advanced access has been forwarded as a strategy for reducing waiting times in primary care; however, previous evaluations have raised important issues regarding its appropriateness. OBJECTIVES: The objectives of this paper are to assess the impact of advanced access on patient access to primary care services, and its broader effects on stakeholders. METHODS: A quantitative analysis of appointment data on 462 practices implementing advanced access, together with qualitative analysis of open survey responses and interviews with 28 practice staff. Appointment data recorded time to third available appointment for GP and practice nurse, together with the percentage of patients seen on their day of choice. Themes were identified from the interviews and survey responses and related to issues identified in previous research. RESULTS: The implementation of advanced access was associated with reductions in time to see practice nurses as well as GPs, and increases in the proportion of patients being seen on their day of choice. Interviewee and survey responses suggested that practice population characteristics may impact on the model, and some patient groups may be disadvantaged from the changes in the appointment systems seen in this study. Whilst experiences were mixed, the potential for broader changes to working practices of all practice staff was evident. CONCLUSIONS: In general, these results suggest that advanced access can have a positive impact across several aspects of primary care services, and not just the availability of GP appointments. However, it also highlights some problems, in that waiting times worsened in some practices and there were concerns that some vulnerable groups may be disadvantaged.

Meta-analysis: The value of clinical assessment in the diagnosis of deep venous thrombosis.

BACKGROUND: Clinical assessment of suspected deep venous thrombosis (DVT) should be based on systematically evaluated evidence. PURPOSE: To determine whether clinical findings, risk scores, and physicians' empirical judgments affect the likelihood of detecting DVT on definitive testing. DATA SOURCES: MEDLINE, EMBASE, CINAHL, Web of Science, Cochrane Database of Systematic Reviews, Cochrane Controlled Trials Register, Database of Reviews of Effectiveness, ACP Journal Club, and citation lists (1966 to January 2005). STUDY SELECTION: Cohort studies published in English, French, Spanish, or Italian that compared clinical assessment with a reference standard. DATA EXTRACTION: The authors extracted standardized data, including setting, exclusions, population characteristics, reference standard, and results, and assessed quality against validated criteria. DATA SYNTHESIS: The authors combined data by using random-effects meta-analysis and, if appropriate, used meta-regression to identify covariates that predicted diagnostic accuracy. Only malignancy (likelihood ratio [LR], 2.71), previous DVT (LR, 2.25), recent immobilization (LR, 1.98), difference in calf diameter (LR, 1.80), and recent surgery (LR, 1.76) were useful for ruling in DVT, while only absence of calf swelling (LR, 0.67) or difference in calf diameter (LR, 0.57) was useful for ruling out DVT. The Wells clinical score was more valuable than the individual characteristics; it stratified patients into groups with high (LR, 5.2), intermediate, and low (LR, 0.25) probability of DVT. The Wells score seemed able to stratify patients by risk only for proximal DVT, and it performed better in cohorts that were younger or excluded patients with previous thromboembolism. LIMITATIONS: Pooled estimates were subject to substantial heterogeneity. This may limit extrapolation between observers and settings. Only published studies were included, so findings may be subject to publication bias. CONCLUSION: Individual clinical features are of limited value in diagnosing DVT. Overall assessment of clinical probability by using the Wells score is more useful.

Evaluation of advanced access in the national primary care collaborative.

BACKGROUND: An aim of the National Primary Care Collaborative is to improve quality and access for patients in primary care using principles of Advanced Access. AIMS: To determine whether Advanced Access led to improved availability of appointments with general practitioners (GPs) and to examine GPs' views of the process. DESIGN: Observational study. SETTING: Four hundred and sixty-two general practices in England participating in four waves of the collaborative during 2000 and 2001. METHOD: Regression analysis of the collaborative's monthly data on the availability of GP appointments for the 352 practices in waves 1-3, and a postal survey of lead GPs in all four waves. The main outcome measures were the change in mean time to the third available appointment with GPs, and the proportion of GPs thinking it worthwhile participating in the collaborative. RESULTS: The time to the third available appointment improved from a mean of 3.6 to 1.9 days, difference = 1.7 days, 95% confidence interval (CI)= 1.4 to 2.0 days. It improved in two-thirds of practices (66% [219/331]), remained the same in 16% (53/331), and worsened in 18% (59/331). The majority of GPs in all four waves, 83% (308/371, 95% CI = 79 to 87), felt that it was worthwhile participating in the collaborative, although one in 12 practices would not recommend it. One-fifth of GPs cited a lack of resources as a constraint, and some expressed concerns about the trade-off between immediate access and continuity of care. CONCLUSION: Advanced Access helped practices to improve availability of GP appointments, and was well received by the majority of practices.

Nurses' views of using computerized decision support software in NHS Direct.

BACKGROUND: Nurses working in NHS Direct, the 24-hour telephone advice line in England, use computerized decision support software to recommend to callers the most appropriate service to contact, or to advise on self-care. AIMS: To explore nurses' views of their roles and the computerized decision support software in NHS Direct. METHODS: Qualitative analysis of semi-structured interviews with 24 NHS Direct nurses in 12 sites. FINDINGS: Nurses described both the software and themselves as essential to the clinical decision-making process. The software acted as safety net, provider of consistency, and provider of script, and was relied upon more when nurses did not have clinical knowledge relevant to the call. The nurse handled problems not covered by the software, probed patients for the appropriate information to enter into the software, and interpreted software recommendations in the light of contextual information which the software was unable to use. Nurses described a dual process of decision-making, with the nurse as active decision maker looking for consensus with the software recommendation and ready to override recommendations made by the software if necessary. However, nurses' accounts of the software as a guide, prompt or support did not fully acknowledge the power of the software, which they are required to use, and the recommendation of which they are required to follow under some management policies. Over time, the influence of nurse and software merges as nurses internalize the software script as their own knowledge, and navigate the software to produce recommendations that they feel are most appropriate. CONCLUSIONS: The nurse and the software have distinct roles in NHS Direct, although the effect of each on the clinical decision-making process may be difficult to determine in practice.

Functional benefits and cost/benefit analysis of continuous intrathecal baclofen infusion for the management of severe spasticity.

OBJECT: Intrathecally delivered baclofen has been used as a treatment for severe spasticity since 1984. Despite this, there are uncertainties surrounding the benefits of treatment and the costs involved. The authors assessed the evidence of benefits and identified costs and the cost/benefit ratio for continuous intrathecal baclofen infusion in the treatment of severe spasticity. METHODS: A systematic literature review was conducted to estimate the effect of continuous intrathecal baclofen infusion on function and quality-of-life (QOL) measures in patients with severe spasticity. Outcomes were related to standard QOL scores to estimate potential gains in quality-adjusted life years (QALYs). Information on the costs of continuous intrathecal baclofen infusion was obtained from hospitals in the United Kingdom. This information was combined to estimate the cost/benefit ratio for the use of continuous intrathecal baclofen infusion in patients with different levels of disability from severe spasticity. Studies indicate that bedbound patients are likely to improve their mobility and become able to sit out of bed. Patients with severe spasm-related pain are likely to have major improvement or complete resolution of this pain. Many other benefits are also reported. Such benefits are related to costs per QALY in the range of 6,900 pounds to 12,800 pounds ($10,550-$19,570 US). CONCLUSIONS: In carefully selected patients who have not responded to less invasive treatments, continuous intrathecal baclofen infusion is likely to lead to worthwhile functional benefits. Continuous intrathecal baclofen infusion has an acceptable cost/benefit ratio compared with other interventions that are funded by the health service.