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Barriers to and enablers of prophylactic compression use by people at risk of venous leg ulcer recurrence: a qualitative study

Por: Alkahtani · A. M. · Dumville · J. · Mott · L. · Armitage · C.
Background

Venous leg ulcers (VLUs) are complex, chronic wounds that often recur after healing. The ongoing use of compression hosiery is the primary strategy to reduce the risk of VLU recurrence. However, adherence to this prophylactic treatment is low, undermining treatment effectiveness and placing a substantial burden on individuals with a history of VLUs and on healthcare systems. Understanding the factors influencing people’s adherence to compression hosiery for secondary VLU prevention is essential to support approaches to promote uptake.

Objectives

The study aimed to (1) draw on the Capabilities, Opportunities and Motivations of Behaviour (COM-B) model and the Theoretical Domains Framework (TDF) to explore factors influencing individuals’ use of prophylactic compression hosiery for the secondary prevention of VLUs and (2) use the behaviour change wheel to identify intervention strategies to support the ongoing use of prophylactic compression hosiery by individuals after VLU healing.

Design

A descriptive, interpretive qualitative study involving individuals with a history of healed VLUs. Semistructured interviews were conducted with people who had experienced healed VLUs. The interviews were guided by the COM-B model. Framework analysis was conducted using deductive coding informed by the TDF and inductive coding to capture emerging themes linked to barriers to and enablers of the target behaviour (ongoing compression use). Data management was aided by NVivo software, and coding was conducted by two researchers.

Settings

Interventions were conducted in person, by telephone or online, based on participants’ preferences, at community leg clubs or in their homes, from April 2024 to January 2025.

Participants

Participants with experience of healed VLUs were recruited from three National Health Service (NHS) trusts and community leg clubs in the North of England.

Results

A total of 15 participants were interviewed, comprising 4 males and 11 females aged between 49 and 89 years. Our analysis identified six factors that may influence individuals’ use of prophylactic compression hosiery following VLU healing: knowledge, skills, environmental context and resources, emotion, social influences and beliefs about consequences. Deficits in knowledge, skills and resources, such as limited availability of prophylactic compression sizes, delays in prophylactic compression delivery and limited access to NHS services after healing, were primary barriers to people’s use of compression hosiery in this context. Conversely, positive beliefs about the benefits of ongoing use of prophylactic compression hosiery were a strong enabler. Emotion and social influences were identified as both barriers and enablers: fear of recurrence and social support encouraged adherence, while stigma and negative feelings hindered it. We identified six intervention functions (education, training, persuasion, environmental restructuring, modelling and enablement) and eight linked behaviour change techniques that could be explored further to support people’s ongoing use of prophylactic compression therapy. These techniques include providing information about antecedents, discussing health and emotional consequences, instruction, demonstration, rehearsal, social support, framing/reframing and vicarious reinforcement.

Conclusions

The identified intervention functions and behaviour change techniques provide theoretically informed insights for designing interventions to support sustained use of prophylactic compression hosiery following VLU healing. Key barriers to address include addressing gaps in individuals’ knowledge about prophylactic compression therapy, prioritising posthealing VLU services, ensuring timely access to appropriately fitted compression and enhancing social support networks.

Screening for hypertension in the inpatient environment (SHINE): a prospective diagnostic accuracy study among adult hospital patients

Por: Armitage · L. C. · Roman · C. · Lawson · B. K. · Mahdi · A. · Biggs · C. · Young · L. · Edmundson · H. · Fanshawe · T. · Tarassenko · L. · Farmer · A. · Watkinson · P. J.
Background

Hypertension is the leading risk factor for death globally. Undiagnosed hypertension is common, but the incidence in hospitalised patients is unclear. There are calls for universal facility-based screening for hypertension among all attending patients. The hospital inpatient setting, where blood pressure (BP) is measured routinely and repeatedly, presents an ideal opportunity. However, international hypertension guidelines do not include inpatient BP thresholds for diagnostic or treatment purposes. We investigated the performance of current UK community BP thresholds for diagnosing hypertension in the hospital setting.

Objectives

Investigate the diagnostic performance of the current UK ambulatory BP diagnostic thresholds for systolic and diastolic hypertension in the hospital setting against the reference test of community-based ambulatory BP monitoring (ABPM).

Design

A prospective diagnostic accuracy study.

Setting

Hospital inpatients admitted to three UK centres were approached. Follow-up ABPM was delivered in the community.

Participants

Eligible patients were aged between 18 and 80 years, with no prior diagnosis of, or prescription for hypertension, and whose mean cumulative daytime BP was 120 mm Hg to 179 mm Hg systolic and ≤109 mm Hg diastolic from the 24th hour of their hospital admission.

Interventions

Participants received 24-hour ABPM 4–26 weeks post-discharge, as the reference test for hypertension, with UK diagnostic thresholds of an average daytime BP of ≥135 mm Hg systolic and ≥85 mm Hg diastolic applied. Participants found to be severely hypertensive at the ABPM fitting appointment were also considered reference-test positive but did not proceed with ABPM.

Primary and secondary outcome measures

The diagnostic performance of a mean daytime in-hospital BP of ≥135 mm Hg systolic or ≥85 mm Hg diastolic (index test) for the prediction of hypertension diagnosed on ABPM (reference test) was assessed using sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) as primary outcome measures. Additionally, we explored the accuracy of a range of alternative in-hospital systolic and diastolic BP thresholds against the same reference test.

Results

351 participants were enrolled and 206 completed the study protocol. The average age of the 206 participants was 53 years, 55% were male, and 91 (44%) had daytime community hypertension on ABPM reference testing. Of 107 participants with raised in-hospital daytime BP, 59 (55%) had daytime community hypertension. When assessing the performance of the index test for detecting daytime community hypertension, sensitivity was 65% (59/91, 54% to 75%) and specificity was 58% (67/115, 49% to 67%). The PPV was 55% (59/107, 45% to 65%) and NPV was 68% (67/99, 58% to 77%), respectively. A further 45/206 participants (23%) had night-time community hypertension when assessed using European diagnostic thresholds for nocturnal hypertension (120 mm Hg systolic or 70 mm Hg diastolic), while 25/107 of those with raised in-hospital daytime BP (23%) had night-time community hypertension. When assessing the performance of the index test for detecting either day or night-time community hypertension, sensitivity was 62% (84/135, 53% to 70%) and specificity was 68% (48/71, 55% to 78%). The PPV was 79% (84/107, 70% to 86%) and NPV was 48% (48/99, 38% to 59%).

Conclusions

Undiagnosed hypertension is common in hospitalised patients, particularly those with raised in-hospital BP. While in-hospital BP alone is an imperfect predictor and should not be used as a stand-alone diagnostic test, this could serve as a trigger for further assessment of BP in the community after discharge.

Trial registration number

The study protocol was registered with the ISCTRN Registry (ISRCTN80586284).

The cost-effectiveness of penicillin allergy assessment pathway (PAAP): a decision analysis

Por: Yang · M. · Bestwick · R. · Howdon · D. · Ahmed · S. · Powell · N. · Armitage · K. F. · Fielding · J. · Porter · C. E. · Savic · S. · West · R. M. · Howard · P. · Galal · U. · Pavitt · S. · Sandoe · J. A. · Mujica-Mota · R. E.
Objective

To evaluate the cost-effectiveness of implementing a penicillin allergy assessment pathway (PAAP) versus usual care within the NHS.

Design

A decision tree analysis over a 5-year time-period, informed by a randomised controlled trial (RCT) of PAAP and systematic review. Value of information analysis was also conducted to estimate the value of conducting a new trial.

Data sources

Model inputs were informed by the ALABAMA RCT participants included in the primary analysis, 811 adults with penicillin allergy labels and recent antibiotic prescriptions, and data from published literature.

Interventions

Participants in the ALABAMA trial included in the primary analysis: PAAP (n=401) and usual care (n=410).

Primary and secondary outcome measures

Costs are presented in GBP (£) at 2022–2023 prices, quality-adjusted life years (QALYs), incremental cost-effectiveness ratio, incremental net monetary benefit (INMB), the probability of cost-effectiveness at the £20,000 and £30,000 per QALY threshold, and the cost effectiveness of a new follow-on trial.

Results

PAAP had incremental costs of £–83 (probability of cost saving 47.5%) and incremental QALYs of 0.036 (probability of positive benefits 47.5%). The INMBs (probability of cost-effectiveness) were £806 (48%) and £1167 (48%) under the decision thresholds of £20,000 and £30,000 per QALY, respectively. PAAP was more cost-effective among females, people aged >65 years, and more frequent antibiotic users. A new follow-on trial involving 1267 participants was estimated to cost £2.4 million and, by reducing uncertainty in the evidence, would avoid £19.6 million in costs of incorrect management decisions for eligible patients over the next 10 years.

Conclusion

The PAAP was considered cost-effective, but significant uncertainty remained. Future trials with adequate power and longer follow-up are needed to determine the most cost-effective models for penicillin allergy testing.

Trial registration number

ISRCTN20579216.

Health and social care professionals awareness and implementation of NICE guidelines on self-harm: a rapid review of the literature

Por: Lever · G. · Dowding · D. · Jeyasingham · D. · Armitage · C. J.
Objectives

To identify the factors influencing professionals’ implementation of the National Institute for Health and Care Excellence (NICE) guidelines on self-harm.

Design

A rapid review evidence synthesis

Data sources

Five electronic databases (ASSIA, CINAHL, EMBASE, MEDLINE, PsycINFO) and five indexing databases (Science Citation Index Expanded (SCIE), Social Sciences Citation Index (SSCI), Arts and Humanities Citation Index (AHCI), Emerging Sources Citation Index (ESCI) and Conference Proceedings Citation Index (CPCI)), using the Web of Science platform, were searched in December 2023 and repeated in July 2024.

Eligibility criteria

We included quantitative and qualitative studies that investigated professionals’ knowledge and implementation of NICE guidelines on self-harm, that were in English language and published between 2004 and July 2024.

Data extraction and synthesis

One reviewer used standardised methods to search, screen, select, quality assess and synthesise the included studies, to accelerate the review. Quality assessment was conducted using the Mixed Methods Appraisal Tool. Data were extracted and synthesised thematically using NICE guidance implementation priorities.

Results

The review included 10 studies. Six were conducted in accident and emergency (A&E) settings, two in general practice, one in a burns and plastic surgery hospital department and one involved cross-sectoral health professionals. Key findings indicate that awareness and implementation of self-harm guidelines is low among health professionals. Systemic barriers include lack of staff training, negative staff attitudes towards people who self-harm and lack of resources.

Conclusions

There is a need to develop and implement regular training on self-harm, incorporating NICE guidance and measures, to integrate knowledge and mobilise practice changes. Further research into the implementation of NICE guidelines in children who self-harm is needed, and in a wider variety of health and social care settings. The absence of studies from the social care sector into professionals’ awareness and implementation of NICE guidelines on self-harm is a key limitation.

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