NCT04339088

High Intensity Focused Ultrasound in PAtients With Varicose Veins in Singapore

Pilot Study to InVestigate the Efficacy and Safety of High Intensity Focused Ultrasound in PAtients With Varicose Veins in Singapore (VESPA)

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 15 (estimated)
• Sponsor: Singapore General Hospital · Academic / Other
• Sex: All
• Age: 21 Years – 90 Years
• Healthy volunteers: Not accepted

Summary

The aim of the study is to evaluate the efficacy of non-invasive echotherapy for the treatment of varicose veins, within local population, using the Sonovein® device. The quality of life scores at baseline, 2 weeks, 3 months, 6 months and 12 months will be assessed using the EQ-50D, AVVQ and CIVIQ scores. Patient satisfaction at these time points will also be assessed.

Detailed description

Sonovein® is a unique echotherapy solution, combining therapeutic ultrasound and ultrasound for monitoring. The high-intensity ultrasound beam is focused on the vein through a magnifying glass. As thermal energy is delivered, the thermocoagulation property of ultrasound energy affects the vein wall, causing shrinking and collapsing of the target vein. Thus creating a fibrotic seal and occluding the vessel. The treated vein is immediately closed after the procedure, and its diameter will continuously reduce over time, becoming a fibrotic chord. The treatment along the vein is steered automatically via a touch screen monitor. In-beam linear ultrasound probe allows visualisation of the vein in real-time and insures optimal accuracy. The study involves prospective data collection of 30 patients that will be undergoing HIFU as choice of treatment for their varicose veins / CVI. Questionnaires will be conducted at 5 timepoints - baseline before procedure, 2 weeks, 3 months, 6 months and 12 months. Subjects will be seen at outpatient clinic post-procedure. Besides questionnaires, physical examination and duplex ultrasound scan will be conducted at 2 weeks, 3 months, 6 months and 12 months to ensure occlusion of treated vein.

Conditions

• Varicose Veins
• Venous Reflux
• Chronic Venous Insufficiency

Interventions

Type	Name	Description
OTHER	Questionnaires	Questionnaires to assess quality of life

Timeline

• Start date: 2022-03-01
• Primary completion: 2022-12-01
• Completion: 2023-12-01
• First posted: 2020-04-09
• Last updated: 2021-09-27

Locations

1 site across 1 country: Singapore