The omohyoid muscle entrapment of the internal jugular vein. A still unclear pathogenetic mechanism

Phlebology. 2014 Oct;29(9):632-5. doi: 10.1177/0268355513489549. Epub 2013 May 16.


Objectives: To evaluate the role of the omohyoid muscle anatomic variants as a possible reversible cause of internal jugular vein extrinsic compression.

Method: We describe a chronic cerebro-spinal venous insufficiency patient, who presented a omohyoid muscle entrapment of the internal jugular vein, confirmed by both magnetic resonance venography and ultrasound investigation. A omohyoid muscle surgical transection together with a patch angioplasty was performed.

Results: The surgical procedure led to both IJV flow restoration and neurological improvement.

Conclusions: The omohyoid muscle compression on the internal jugular vein seems to be a possible cause of venous obstruction, but several anatomical and patho-physiological aspects need further investigations. Such picture might cause balloon venous angioplasty inefficacy and needs to be preoperatively considered.

Keywords: Omohyoid muscle; chronic cerebro-spinal venous insufficiency; jugular entrapment.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Female
  • Hemodynamics
  • Humans
  • Jugular Veins / diagnostic imaging
  • Jugular Veins / surgery*
  • Multiple Sclerosis, Relapsing-Remitting / physiopathology
  • Multiple Sclerosis, Relapsing-Remitting / surgery
  • Muscle, Skeletal / blood supply*
  • Phlebography / methods*
  • Treatment Outcome
  • Ultrasonography, Doppler
  • Vascular Surgical Procedures / methods
  • Venous Insufficiency / diagnostic imaging
  • Venous Insufficiency / surgery*