Venous thromboembolism (VTE) occurs when a blood clot forms in a vein. It is comprised of deep vein thrombosis (DVT) and pulmonary embolism and can be potentially life-threatening. Patients undergoing surgery are at increased risk of developing VTE within hospital admission and 90 days after hospital discharge are collectively known as hospital-acquired thrombosis (HAT). Without the use of thromboprophylaxis, the untreated risk of VTE is reported to be as high as 40–60% in those undergoing major orthopaedic procedures and around 15–40% in the general surgical population.
HAT accounts for around 12 000 deaths per year in the UK. For patients undergoing surgery, there is good evidence for the use of thromboprophylaxis to prevent VTE.
Thromboprophylaxis is available in both pharmacological and mechanical forms. While there is a huge body of evidence demonstrating that pharmacological thromboprophylaxis significantly reduces VTE by 30–65%, the benefit of graduated compression stockings (GCS) has been called into question. The GRACE study (Graduated Compression stocking as an adjunct to Extended duration pharmacological thromboprophylaxis for venous thromboembolism prevention) aims to evaluate the adjuvant benefit of GCS in addition to extended duration pharmacological thromboprophylaxis (EDPTP) for elective surgical patients at highest risk of VTE.
GRACE is a pragmatic, multicentre randomised trial of adults undergoing surgery who are at high risk of VTE. Participants are randomised into a 1:1 ratio to either EDPTP and compression stockings (control arm) or EDPTP (intervention arm). Following randomisation, participants will undergo surgery and be followed up centrally at 7, 21–35 and 90 days after their procedure. All participants will be offered a bilateral full lower limb duplex scan at 21–35 days post procedure to capture any asymptomatic DVT.
The trial aims to randomise 8608 participants from around 50 National Health Service (NHS) and non-NHS sites in the UK over a 24-month period. The primary endpoint is any imaging-confirmed incidence of VTE within 90 days of surgery.
On 20 December 2023, GRACE received favourable ethical approval from the Wales Research Ethics Committee 3 Cardiff (23/WA/0350) and the Health Research Authority (IRAS 333539). The results of the study will be disseminated via peer-reviewed publications, presentation at national and international conferences and to study participants via electronic newsletter and social media channels.
Guidance for venous leg ulceration (VLU) recommends compression therapy and early referral for specialist vascular assessment within two weeks. Few patients receive timely assessment and referral. Reasons for this are unclear. The aim of this work was to explore nurses' perceptions of the barriers and facilitators to early assessment of VLU and referral for specialist treatment. One-to-one semi-structured interviews explored experiences caring for and referring patients with VLU to a vascular specialist. Maximum variation sampling and inductive thematic analysis were used. Eighteen nurses participated. Findings suggest junior nurses lack knowledge and confidence to care for VLU and often revert to a ‘task-based’ approach, exacerbated by staff shortages and limited training. Because VLU occurs in the context of competing conditions and pressures, comprehensive assessments are missed, and the need for referral is not established or prioritised. Supporting patients to self-manage is seen as a possible solution. Nurses reported disjointed pathways between primary and secondary care, compounded by poor MDT collaboration, ineffective communication systems and inadequate data sharing. Consequently, when the need for referral is established, communicating this between healthcare organisations is complex. Organisational and behavioural barriers impact nurses' ability to promote timely referral. Further exploration with patients and other healthcare professionals is needed.