Complications. 



169 



biiminuria is not uncommonly present durinj 

 disease. 



Complications are fre- 

 quent, even if the primary 

 diseases followed by a sec- 

 ondary pleurisy are left out 

 of consideration. Very im- 

 portant, as a complication, 

 is pericarditis, because it may 

 lead to complete cardiac ex- 

 haustion. Delacroix found 

 embolism in the puhnonary 

 arteries in a horse which died 

 suddenly during recovery from 

 pleuritis; the origin of the 

 embolism was found in a 

 thrombotic, bent posterior 

 vena cava. An abscess is 

 sometimes found in the wall 

 of the thorax in purulent and 

 ichorous pleuritis ; the abscess 

 breaks outside, or it opens into 

 one of the thoracic organs, 

 into the lungs, or through a 

 cavity of the latter into a larger 

 pharynx, mediastinum, etc. 



the course of the 



Fig 27. Fever curve in primary 

 pleurisy in a horse. Recovery. 



Ijronclius, into the trachea, 



Fig. 28. Fever curve in secondary pleurisy in a horse, (following upon croupous 

 pneumonia) . 



According to Guittarcl, pleuropneumonia of fowl at first leads to 

 listlessness, cbminished appetite, retarded digestion, and after several 

 days to great prostration, the comb becomes pale and the respiration 



