412 INFLAMMATION OF THE JUGULAR VEIN. 



reaction or swelling become very marked, moist warmth will 

 remove tension and pain, and infriction with unguentum hydrargyri 

 may be found useful. In applying the ointment severe pressure 

 and rubbing must be avoided, lest the thrombus be broken up 

 and emboli set free. Abscesses should be opened, and free exit 

 given to discharge by increasing the size of the skin wound. 

 In France a seton or a fenestrated rubber-tube is employed to 

 drain the suppurating vein. A probe is introduced through the 

 phlebotomy wound and directed upwards to within a short 

 distance of the obstruction, where a counter-opening is made 

 over the point of the probe. The rubber-tube is then attached to 

 the probe and drawn into position. An antiseptic solution is injected 

 into the tube at short intervals, and the drain is kept in position 

 so long as suppuration continues. Under certain circumstances, 

 as when severe bleeding occurs repeatedly, it may be advisable to 

 ligature the vessel below, and if the thrombus does not extend too 

 far upwards, it may also be ligatured above. The operation is 

 performed according to general principles, the vessel divided between 

 the points of ligation and removed. If it has been ligatured above 

 the diseased point, the isolated section of the vein can be completely 

 laid open. French surgeons often remove the disused portion of 

 the vein, but in cases of suppuration Cadiot prefers free drainage. 

 For some days after ligation the animal must be kept perfectly quiet, 

 while, to avoid bleeding, only fluid nourishment should be given. 

 Schley recommends washing out the vein with sublimate solution. 



In removing the diseased portion of vein a ligature must first 

 be applied above and below, taking care to apply the ligatures to 

 healthy parts of the vessel. The vein is then divided transversely 

 at the upper end, and completely separated from neighbouring 

 structures. No danger results if the wound be treated as an open 

 one, but care is required in exposing the vein to avoid injuring the 

 carotid, and, therefore, the knife should be sparingly used, and the 

 fingers or blunt scissors used in preference. Sometimes the vein 

 tears cleanly away from surrounding tissues if moderate traction 

 be exercised. 



Several cases were successfully treated by laying open the sinuous 

 wound and dressing with iodine solution, followed on subsequent 

 days by carbolic or creolin lotions. (Cadiot and Dollar, " Clinical 

 Veterinary Medicine and Surgery.") 



