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

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

Author information

1
Vascular Disease Center, University of Ferrara, Ferrara, Italy sergiogianesini@hotmail.com.
2
Vascular Disease Center, University of Ferrara, Ferrara, Italy.
3
Vascular and Endovascular Unit, S. Anna University Hospital, Ferrara, Italy.
4
IRCCS Neurosciences, Bologna, Italy.
5
IRCCS Neuro-Radiology Department, Mondino National Neurological Institute, Pavia, Italy.

Abstract

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

PMID:
23761870
DOI:
10.1177/0268355513489549
[Indexed for MEDLINE]
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