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Veterinary Medicine. 



TABLE CONTRASTING THE MAIN SYMPTOMS OF HYPERTROPHY 

 . AND DILATATION. 



A. General Physical Signs. 



SIMPI,E HYPERTROPHY. 



Heart's impulse slow 

 and heaving as if press- 

 ing steadily against an 

 obstacle — in rhythm reg 

 ular, in force unequal. 



First sound is dull, 

 muffled, prolonged and 

 weakened almost to ex- 

 tinction. Second sound 

 full and clanging ; per- 

 iod of silence shortened. 



Murmur with the first 

 sound present at one 

 time and absent at an- 

 other. 



HYPERTROPHY WITH DI- 

 LATATION. 



Force increased, sharp- 

 er, more knocking, may 

 impart a shake to the 

 body. May be felt on 

 the rifiht side. 



Sounds gain greatly in 

 loudness and extent of 

 transmission, especially 

 if the valves are not 

 thickened. 



Murmur with the first 

 sound may be present, 

 from altered direction of 

 the orifice of the aorta, 

 or from insufficiency 

 of auriculo-ventricular 

 valves. With second 

 sound from insufficien- 

 cy of arterial valves. 



SIMPLE DILATATION. 



Impulse conveys a 

 feeble undulatory sensa- 

 tion ; force of successive 

 beats unequal ; rhythm 

 irregular. 



First sound short, 

 abrupt and clear. Second 

 sound not specially af- 

 fected. 



Murmur with the first 

 sound from insufficiency 

 of the auriculo ventricu- 

 lar valves ; or with the 

 second with insufficien- 

 cy of the arterial valves. 



B. General Functional Symptoms. 



SIMPLE HYPERTROPHY. 



Strength unimpaired. 

 Power of continued ex- 

 ertion (especially up- 

 hill) limited by short- 

 ness of breath. 



Visible mucous mem- 

 branes healthy or of a 

 bright red. 



Difficulty of breathing 

 occasional. 



HYPERTROPHY WITH DI- 

 LATATION. 



Strength tends to be- 

 come impaired. 



Purpleness and lividi- 

 ty of the mucous mem- 

 branes proportionate to 

 the valvular or pulmon- 

 ary obstruction. 



Difficulty of breathing 

 occurs in paroxysms. 



SIMPLE DILATATION. 

 Strength fails. 



Lividity of the mucous 

 membranes. Dropsical 

 effusions of the limbs and 

 other dependent parts 

 which pit on pressure. 



Difficulty of breathing . 

 great and constant, with 

 occasional aggravations. 



