Vascular Dopplers
Surgical Dopplers
Fetal Dopplers

Venous Reflux Studies

A Venous Reflux study uses a PPG probe affixed adjacent to the posterior tibial artery, at or above the ankle. Dorsiflexing the foot acts as a pump for venous augmentation. Recovery time is the time required for venous refilling to occur.

Venous Reflux studies are used to assess valvular competence. PPG probes are available for Koven's Bidop® 3, and Smartdop™ 45 Vascular Dopplers.

The Venous Reflux Exam

The patient is placed in a sitting position with the foot not touching the floor and the PPG probe is affixed adjacent to the posterial tibial artery.

When ready, the patient will dorsiflex the foot a set number of times (usually 5), then relax the foot as venous refilling is monitored by the Doppler.

Interpreting the Results

Normal refill time will exceed 21 seconds
Refill time between 18 and 21 seconds is questionable. Repeat the test.
If refill time is less than 18 seconds, a venous condition may exist.

Proper technique and patient cooperation are important factors when performing a venous reflux study.

Bidop is a registered trademark ® of Koven Technology, Inc., St. Louis, MO
Smartdop is a trademark of Koven Technology Canada Inc., Winnipeg, Manitoba



Contact Koven
Koven Technology Canada Inc.
404-435 Ellice Avenue
Winnipeg, Manitoba R3B 1Y6
Tel: 204-943-2596 / 204-943-2624
Fax: 204-943-2652
Email: info@koven.com
Email PO's: canadapurchase@koven.com
All other customers visit www.koven.com

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