Classification and Treatment of Endothermal Heat-Induced Thrombosis

Publication Date: September 30, 2020
Last Updated: March 14, 2022

Recommendations

Classification of endothermal heat-induced thrombosis (EHIT)

Classification system for EHIT

We suggest the use of a classification system to standardize the diagnosis, reporting, and treatment of EHIT. (G-U, )
679

Classification system based on duplex ultrasound

We suggest that venous duplex ultrasound with the patient in the upright position, performed within 1 week of the index procedure, forms the basis for the classification system. (G-U, )
679

Kabnick classification system

We suggest consideration of the Kabnick classification for reporting of EHIT at the saphenofemoral great saphenous vein [GSV]) or saphenopopliteal (small saphenous vein [SSV]) junction. (G-U, )
679

Lawrence classification system

We suggest consideration of the Lawrence classification for reporting of EHIT at the saphenofemoral (GSV) or saphenopopliteal (SSV) junction. (G-U, )
679

American Venous Forum EHIT classification system

We suggest preferential use of the unified American Venous Forum EHIT classification system to standardize ongoing reporting, given that it maintains the essence of the Kabnick and Lawrence classification systems, remains recognizable, and may be used for ongoing meta-analyses and systematic reviews. (BP) It is a four-tiered classification:
  • I = junction
  • II = <50% lumen
  • III = >50% lumen
  • IV = occlusive deep venous thrombosis
(G-U, )
679

Overview

Title

Classification and Treatment of Endothermal Heat-Induced Thrombosis

Authoring Organizations

American Venous Forum

Society for Vascular Surgery