Feasibility Study of Exercise in Patients With Leg Blood Clots (EXPERT)

University of Oklahoma (OU)

Status

Completed

Conditions

Deep Vein Thrombosis

Treatments

Other: Exercise

Study type

Interventional

Funder types

Other

Identifiers

NCT00910364

ORA #20081607 (Other Identifier)

14181

Details and patient eligibility

About

The purpose of this pilot study is to assess the feasibility of determining the effects of a structured exercise program started two to four weeks after diagnosis of a first episode lower-extremity deep vein thrombosis (DVT) for a period of 12 weeks in reducing the incidence of post-thrombotic syndrome (PTS).

Full description

Deep Vein Thrombosis (DVT) affects nearly 300,000 people in the U.S. each year. DVT of the leg results in PTS in up to 65% of patients,despite receiving appropriate medical management with anticoagulant therapy.

PTS, caused by persistent venous outflow obstruction and venous valvular dysfunction, may result in symptoms of leg pain, swelling, heaviness and cramping especially with prolonged standing.

All eligible patients with documented first-episode DVT interested in participating will undergo medical screening and a screening treadmill test prior to enrollment between two and four weeks post DVT diagnosis. All patients will be provided and asked to wear class II (30 to 40mmHg) knee length compression hose daily during the entire trial.

The formal exercise training includes both a supervised walking program and a home-based walking program for 12 weeks with follow-up at 26 weeks. Blood tests will be taken to measure levels of indicators of inflammation at baseline, week 4, week 12, and week 26. The primary outcomes will be the feasibility of the exercise program and the incidence of post-thrombotic syndrome at 26 weeks.

Enrollment

5 patients

Sex

All

Ages

21 to 75 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

First episode lower extremity DVT (proximal or distal) documented by ultrasound, CT angiogram or venogram within last 4 weeks.
Treatment with LMWH, or unfractionated heparin (UFH) followed by warfarin adjusted to keep INR 2 to 3 for at least 3 months, or LMWH given in therapeutic doses as sole therapy.
Age 21 to 75 years old.

Exclusion criteria

Recurrent DVT.
Treatment of DVT with systemic or catheter-directed thrombolysis Contraindications to exercise training according to the American College of Sports Medicine (e.g., acute myocardial infarction, unstable angina, etc.,).
Life expectancy < 1 year.
Pregnancy.
Geographic inaccessibility.
Screening (pre-randomization) exercise stress test demonstrating contraindication to exercise training (see exclusion #2).
Cognitive dysfunction assessed by mini-mental status exam (score < 24).
Inability to walk.