Day of Science: Glue, Genetics, Hemodynamics and DVT Models
A Novel Cyanoacrylate Glue for Vein Occlusion
A Russian sulfacrylate adhesive used to occlude the great and small saphenous veins in 48 patients achieved complete anatomic success with no deep vein extension or allergic reactions, and histology confirmed the glue was fully biodegraded within six to seven months.
Genetic Factors in Recurrent Varicose Veins
Sequencing of vein segments from patients at high and low probability of recurrence identified 28 candidate genes, with eight showing consistent differential expression tied to vascular smooth muscle contractile function, suggesting a genetic basis for recurrence after surgery.
Hemodynamic Forces Driving Valve Destruction
A physics based model likened venous reflux to a waterfall, arguing that pulsatile retrograde axial forces, beyond simple hydrostatic pressure and shear stress, mechanically hammer and progressively destroy vein valve structures in proportion to vessel diameter.
A Percutaneous Swine Model for Chronic DVT
Researchers developed a totally percutaneous swine model producing reproducible long segment iliofemoral DVT, with venography and histology mirroring human thrombus organization and mechanical testing showing thrombus grew stiffer and less compressible from seven to fourteen days.
