270 PEINOIPLES OF VETEEINABT SURGEEY 



DISEASES OF VEINS. 

 Inflammation of Veins (Phlebitis). 



27'ame the varieties of phlebitis. 



1. EndopHebitis (inflammation of th.e inner coat). ■ 



2. Mesophlebitis (inflammation of the middle coat). 



3. Periphlebitis (inflammation of the external coat). 



What forms of phlebitis are recognised f 



The course of the inflammation may be acute or chronic, 

 aseptic or septic ; according to its origin, it may be traumatic 

 or hematogenous. 



Is phlebitis a common surgical disease P 



In former times, when asepsis was little understood, it was 

 very common, especially jugular phlebitis, the result of bleed- 

 ing the animal with surgically unclean instruments, etc. ; at 

 the same time, phlebitis is much more common than arteritis. 



Which form of phlebitis is of most practical interest ? 



Purulent phlebitis, also termed purulent thrombophle- 

 bitis. 



Mow is pv/rulent thrombophlebitis produced ? 



1. In septic processes near a vein, as in cases of progres- 

 sive septic cellulitis, the purulent process may spread to th& 

 vein, 



3. A venous thrombus may become infected from withiu 

 — that is, through the circulation, as in pyemia — or pus-pro- 

 ducing bacteria may enter from without. 



€Hve some examples of phlebitis. 



In colts and calves, as the result of neglected antisepsis of 



