Inferior thyroid veins Inferior thyroid veins The inferior thyroid veins appear two, frequently three or four, in number, and arise in the venous plexus on the thyroid gland, communicating with the middle and superior thyroid veins. While the superior and middle thyroid veins serve as direct tributaries to the internal jugular vein, the inferior thyroid veins drain directly to the brachiocephalic veins. They form a plexus in front of the trachea, behind the Sternothyreoidei. From this plexus, a left vein descends and joins the left brachiocephalic vein, and a right vein passes obliquely downward and to the right across the brachiocephalic artery to
Varicose veins insufficiency method (CHIVA), which intends saving the veins, decreases varicose veins and is safer than vein stripping in those with chronic venous insufficiency. CHIVA comes from the French translation for the technique, conservatrice et hémodynamique de l'insuffisance veineuse en ambulatoire. The operation involves performing one to four small incisions on average, under local anesthesia, to remove by precise ligatures abnormal blood flow due to valvular incontinence and responsible for varicose vein dilation. The patient returns home the same day. This method tends to correct the venous functions in order to cure the symptoms of venous insufficiency such as varicose veins,