GEKO Venous Thromboembolism Prevention Study

Inclusion Criteria: 1. Age 18 years or older 2. Clinical diagnosis of acute stroke (WHO criteria) 3. Within 36 hours of symptom onset 4. Not able to get up from a chair/out of bed and walk to the toilet without the help of another person Exclusion Criteria: 1. Inability to gain consent from the patient, or a declaration from a Personal Consultee or Nominated Consultee 2. Unwitnessed onset with a long lie on the floor before admission 3. Clinically apparent deep vein thrombosis at screening 4. Patient is expected to require palliative care within 14 days 5. Patient does not live in the local catchment area and is expected to be transferred to their local hospital for on-going care. 6. Patient has recently been involved in or is currently involved in a clinical trial for either a medical device or medicinal product, within the past 3 months, with the exception: if co-enrolment is not considered to impact adverse events or outcomes in the opinion of the Chief Investigator. (A live document containing a list of approved studies will be included in a reference document made available to all study sites and available upon request) 7. Contraindications for the use of the geko™ device: * Allergy to hydrogel constituents 8. Contraindications to IPC: * Severe peripheral vascular disease * Large leg ulcers requiring extensive bandaging (small ulcers or skin breaks with flat coverings are not an exclusion) * Severe oedema * Leg deformities making appropriate fitting impossible 9. Uncontrolled congestive cardiac failure 10. Pregnancy 11. Single or double leg amputations