Thrombosis Survey

The GIRFT Thrombosis Survey launched on 1st October 2019 and will run until 31st March 2020. It is co-badged by the Royal College of Surgeons and the Royal College of Physicians, and supported by the National VTE (venous thromboembolism) Exemplar Centres Network in collaboration with Thrombosis UK.

The purpose of the survey is to:

  1. Identify the number of cases of HAT (Hospital Acquired Thrombosis) for a period of six months in each hospital.
  2. Identify the clinical areas where HAT occurs, identifying whether HAT has occurred after medical or surgical admission and the type of surgical admission.
  3. Determine the proportion of HAT cases which are deemed potentially preventable.
  4. Identify common themes within cases of potentially preventable HAT.
  5. Assess local practice in the prevention of HAT.
  6. Provide data for participating trusts or hospitals, to benchmark themselves against the national average and to drive better scrutiny and investigation of HAT and their causes.

The survey questions have been developed by professor of thrombosis Professor Roopen Arya and consultant haematologist Dr Lara Roberts – both of King’s College Hospital NHS Foundation Trust, London – in consultation with Thrombosis UK, and have been reviewed by a panel of experts from professional bodies.

The survey is completed via an online portal and has three sets of questions – a HAT survey, a VTE prevention survey and an organisation survey. All episodes of HAT should be recorded on the portal, and each trust or site should submit a minimum of 20 records a month in the VTE prevention survey.

For patients assessed as high risk for VTE, please submit a minimum of four entries per month for each of the following categories:

  • Medical patients (admitted under the care of a physician);
  • Medical patients (admitted under the care of a physician);
  • Surgical patients (admitted under the care of a surgeon);
  • Critical care patients (admitted to a critical care setting at the time of audit);
  • Maternity patients (admitted under the care of midwifery or obstetrics);
  • Other patients (eg; liver, stroke, neurosurgery, renal);
  • Surgical patients (admitted under the care of a surgeon);

Additional data records can be submitted but a minimum of 20 (four per category) is required for the purpose of analysis. Where not all patient groups are treated at a hospital, 20 submissions across the breadth of the hospital practice will be required.

It is hoped the survey will take no more than 10-15 minutes per patient to complete.

If you wish to participate or for any further information please contact GIRFT project manager Anne-Marie Ridgeon at