NOTE: The thicknesses for backing flanges noted in the tables are applicable to. steel. Different metals demand different thicknesses for the same performance, so for. metals other than steel, consideration must be given to thickness. Although Tables 4, 5, 6 and 7 in these guidelines make reference to pressure ratings.
Big difference : A subtotal colectomy is removing almost all the colon; usually just a couple of inches are left near the rectum. A partial colectomy is not done AFTER a subtotal colectomy because there is basically no colon left.
Septal myectomy is a type of open-heart surgery for hypertrophic cardiomyopathy (thick heart muscle). It decreases symptoms of the condition. A muscular wall called the septum separates the left and right ventricles, the two lower chambers of the heart. In hypertrophic cardiomyopathy, the walls of the ventricles and septum may thicken abnormally.