Classification and treatment of endothermal heat-induced thrombosis: Recommendations from the American Venous Forum and the Society for Vascular Surgery

J Vasc Surg Venous Lymphat Disord. 2021 Jan;9(1):6-22. doi: 10.1016/j.jvsv.2020.06.008. Epub 2020 Oct 1.

Abstract

The American Venous Forum (AVF) and the Society for Vascular Surgery set forth these guidelines for the management of endothermal heat-induced thrombosis (EHIT). The guidelines serve to compile the body of literature on EHIT and to put forth evidence-based recommendations. The guidelines are divided into the following categories: classification of EHIT, risk factors and prevention, and treatment of EHIT. One major feature is to standardize the reporting under one classification system. The Kabnick and Lawrence classification systems are now combined into the AVF EHIT classification system. The novel classification system affords standardization in reporting but also allows continued combined evaluation with the current body of literature. Recommendations codify the use of duplex ultrasound for the diagnosis of EHIT. Risk factor assessments and methods of prevention including mechanical prophylaxis, chemical prophylaxis, and ablation distance are discussed. Treatment guidelines are tailored to the AVF EHIT class (ie, I, II, III, IV). Reference is made to the use of surveillance, antiplatelet therapy, and anticoagulants as deemed indicated, and the recommendations incorporate the use of the novel direct oral anticoagulants. Last, EHIT management as it relates to the great and small saphenous veins is discussed.

Publication types

  • Practice Guideline
  • Systematic Review

MeSH terms

  • Administration, Oral
  • Anticoagulants / administration & dosage*
  • Anticoagulants / adverse effects
  • Consensus
  • Evidence-Based Medicine
  • Fibrinolytic Agents / administration & dosage*
  • Fibrinolytic Agents / adverse effects
  • Humans
  • Laser Therapy / adverse effects*
  • Platelet Aggregation Inhibitors / administration & dosage*
  • Platelet Aggregation Inhibitors / adverse effects
  • Radiofrequency Ablation / adverse effects*
  • Treatment Outcome
  • Venous Insufficiency / surgery*
  • Venous Thrombosis / diagnostic imaging
  • Venous Thrombosis / etiology
  • Venous Thrombosis / therapy*

Substances

  • Anticoagulants
  • Fibrinolytic Agents
  • Platelet Aggregation Inhibitors