Clinical trial NCT03111758: Flow Augmentation Study in Postthrombotic Patients
Official title: Flow Augmentation With Geko Device in Patients With Postthrombotic Syndrome a Prospective Randomised Cross-Over Trial
Study type: INTERVENTIONAL
Overall status: TERMINATED
Phase: NA
Conditions: Postthrombotic Syndrome
Lead sponsor: Maastricht University Medical Center
Sponsor class: OTHER
First posted: 2017-04-13
Enrollment: 10
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: PREVENTION

Brief summary: Rationale:

Stent therapy has been proven to be an effective form of therapy in the treatment of chronic iliofemoral and iliocaval post-thrombotic obstruction. During the first post-intervention day intermittent pneumatic compression stockings (IPCS) are necessary to augment venous flow. This will inherently prevent early stent occlusion. Our aim is to investigate whether the Geko device is effective as IPCS regarding augmentation of flow in post-thrombotic patients during the first day after stenting.

Objective: The primary objective of this study is to identify whether the Geko system is effective in augmenting flow compared to IPCS in post-thrombotic limbs before after stenting.

Study design: Interventional pilot study with randomized cross-sectional design.

Study population: Patients with a post-thrombotic obstruction undergoing a percutaneous procedure (PTA, stenting).

Intervention (if applicable): Treatment with intermittent pneumatic compression stockings (IPCS) and Geko-device.

Main study parameters/endpoints: The main endpoint and parameter of this study is time-averaged maximum flow velocity (TAMFV), measured by duplex ultrasonography using its pulse wave Doppler function.


Eligibility criteria: Inclusion Criteria:

* Post-thrombotic obstruction that requires percutaneous intervention through stenting, minimally 18 years of age

Exclusion Criteria:

* Peripheral arterial disease, comorbidities leading to impaired muscle function of either lower limb, co-morbidities affecting the circulatory system, history of deep venous surgery in either lower limb or groin, allergies to the plasters, pregnancy.

Primary outcomes:
measure: Time Averaged Maximum Flow Velocity
timeFrame: Five times one minute measurement
Secondary outcomes:
Other outcomes:
Locations:
city: Maastricht
country: Netherlands
facility: Maastricht UMC
state: Limburg
Study officials:
affiliation: Maastricht University Hospital
name: Cees Wittens, MD,PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Summers JA, Clinch J, Radhakrishnan M, Healy A, McMillan V, Morris E, Rua T, Ofuya M, Wang Y, Dimmock PW, Lewis C, Peacock JL, Keevil SF. The geko electro-stimulation device for venous thromboembolism prophylaxis: a NICE medical technology guidance. Appl Health Econ Health Policy. 2015 Apr;13(2):135-47. doi: 10.1007/s40258-014-0139-0.
citation: Williams KJ, Moore HM, Davies AH. Haemodynamic changes with the use of neuromuscular electrical stimulation compared to intermittent pneumatic compression. Phlebology. 2015 Jun;30(5):365-72. doi: 10.1177/0268355514531255. Epub 2014 Apr 10.