Surgical Interventions, Diagnostics and Devices

What we do

The rebranding of the Surgical Interventions, Diagnostics and Devices (SIDD) Division in 2018 was a direct reflection of the identity and vision of this Division.

Formerly known as the Comprehensive Health Research Division (CHRD), our established portfolio of work in Surgical, Diagnostic and Device Interventions involves the design, conduct, analysis and dissemination of a broad range of trials from definitive, large-scale, international, randomised controlled trials to single-centre, earlier-phase research including feasibility and qualitative work. Our trials have innovative, adaptive, robust designs to efficiently evaluate and evidence interventions to change clinical practice and benefit patients.

The Division has an expanding portfolio and experience in device and CTIMP interventions in skin/wound healing and musculoskeletal; stratified medicine and diagnosic interventions in cardiovascular disease; and surgical interventions in colorectal, vascular disease and orthopaedics.

The Division hosts a nominated Royal College of Surgeons (RCS) Surgical Trials Centre (STC) and leads the Clinical Trials Theme for NIHR Surgical and Diagnostic MICs at Leeds through which we are developing collaborations and research with the Surgical MedTech Cooperative (key themes colorectal, vascular and HPB) and In Vitro Diagnostics (key themes cancer, MSK, infection and renal).

Through the surgical trials, we have experience in delivering international trials and have developed the NIHR International Trials Toolkit. Our portfolio also includes Global Health Surgical Trials, designing and delivering trials in developing countries.

The SIDD Division supports the NIHR vision "to develop new concepts, demonstrate proof of principle and devise research protocols for new medical technologies (including medical devices, healthcare technologies, or technology-dependent interventions) that are applicable across the NHS".

Our active programme of methodological research investigating real-world challenges of surgical and device evaluations, specifically:

  • Multi-state modelling in pressure ulcer data.
  • Impact of learning curves in surgical and device intervention trials.
  • Exploring equipoise in surgical trials.
  • Core outcome sets.
  • Consensus methods.
  • Innovative Patient and Public Involvement and Engagement.

Our innovative, pragmatic trials compare surgical, diagnostic and device interventions with NHS standards of care assessing effectiveness across both clinical and patient-focussed outcomes, including symptom reduction, specific areas of quality of life and cost effectiveness.

We answer questions, which are key to our stakeholders, including investigators, patients, healthcare providers, policy makers and the NHS. Our trials provide evidence which change clinical practice in the United Kingdom and worldwide.

Who we are


Division Director
Professor Deborah Stocken

View our team members