I found this article for you.

Accreditation bodies now recommend prophylaxis on surgeries 45 minutes and longer to prevent Deep Venous Thrombosis (DVT). So compression therapy is no longer an option, it’s a clinical recommendation. In over a dozen clinical articles, intermittent compression systems such as Venodyne are noted as a leading choice to stop DVT without the risk of post-op bleeding often associated with drug therapies.

*Deep vein thrombosis (throm-BO-sis), or DVT, is a blood clot that forms in a vein deep in the body. Blood clots occur when blood thickens and clumps together. *

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