320 J^etcrinary Medicine. 



B. General Functional Symptoms. 



SIMPLE HYPERTROPHY. HYPERTROPHY' WITH DI- SIMPLE DILATATION. 

 LATATION. 



Strength unimpaired. Strength tends to be- Strength fails. 

 Power of continued exer- come impaired, 

 tion (especially uphill) 

 limited by shortness of 

 breath. 



Visible mucous mem- Purplenessand lividity Lividity of the mucous 



branes healthy or of a of the mucous mem- membranes. Dropsical 



l)rightred. branes proportionate to effusions of the limbs and 



the valvular or pulmon- other dependent parts 



ary obstruction. which pit on pressure. 



Difficulty of breathing Difficulty of breathing Difficulty of breathing 



occasional. occurs in paroxysms. great and constant, with 



occasional aggravations. 



Pulse full, strong, firm, Fullness of pulse con- Pulse small and feeble, 



tense, resisting and pro- tinues but strength and much later than the heart 



longed without jerk or power of resistance lost. beat. Regular or feeble, 



thrill. fluttering and irregular. 



Venous pulse in the 



jugulars. 



Rarely and never rap- Indirectly and more or Palpitation frequent. 



idly the direct cause of less rapidly fatal. Faintness occurs from 



death. time to time, and may 



lapse into fainting and 

 sudden death. 



Pure hypertrophy rarely implies imminent danger unless de- 

 pendent on some pre-existing structural disease which impedes 

 the freedom of the circulation. If excessive, however, or if as- 

 .sociated with dilatation the animal is short-winded and unfit for all 

 but the slowest work. It predispo.ses to congestion or apoplexy 

 of the lungs when its seat is the right ventricle, and to conges- 

 tions and hemorrhage in other parts of the system, brain, kidney, 

 lungs, liver, bowels, if in the left. 



Asthma (dogs), heaves (horses), emphysema and tuberculosis 

 in cattle are occasional complications attended by grave symptoms. 



Treatment. In advanced cases and .such as are dependent on 

 irremovable structural changes in the lungs or elsewhere no treat- 

 ment is of any avail. In recent and uncomplicated cases in the horse 

 and cow and in some more advanced conditions in other animals, 



