COLICS OF THE SOLIPED 31 



we are to consider obstruction of the small colon which 

 is one of the most common and most dangerous of the 

 prolonged colics, often extending uninterruptedly for 

 twenty-four to thirty hours. 



The pains are continuous, of considerable intensity 

 and accompanied by peculiar stretching forward of the 

 front limbs and backward on the toes of the hind feet; 

 also by violent straining either during recumbency or 

 when standing. There is a tendency for gas to collect 

 anterior to the stoppage ; a frequent passing of small par- 

 ticles of fecal matter, and the gas is expelled in a rather 

 characteristic snapping-like manner in contradistinction 

 to the prolonged blowing of ordinary unobstructed flat- 

 ulency. 



Like in other forms of colic of this class, should the 

 obstruction interrupt the visceral circulation sufficiently 

 to produce strangulation, there occurs a period of anxi- 

 ety free from pain, that just prior to death, is interrupted 

 by tremors, cold sweating and renewed pain. Rectal ex- 

 amination may aid in detecting this obstruction. This 

 manipulation causes excessive pain, straining, a tendency 

 to rise on the toes of the hind feet and the rectum gives 

 to the hand a feeling of tightness. 



6. — Embollic or Aneurysmal Colics. — As a result 

 of aneurvsm or thrombosis of one or another branch 

 of the mesenteric arteries, especially consequent 

 upon helminthiasis, wx encounter a number of cases of 

 enteralgia, particularly in older horses, but not entirely 

 confined to animals of mature age. These manifestations 

 though on the whole lacking distinction, and resembled by 

 symptoms observed in other varieties of true obstruction 



