igoo-i.J 



Observations on Blood Pressure. 



and the splenic artery was tied at ii, and yet 

 no fall in pressure occurred. A slight rise in 

 fact occurred at ii, which might have been 

 due to the tying of the artery. Thus no sign 

 of shock appeared, and this is in accordance 

 with the results obtained by the Hyderabad 

 Commission, who were unable to produce 

 shock in dogs under chloroform by any 

 operation they tried. 



Complications Arising During the 

 Administration of Chloroform. 



Various complications may occur at any 

 time during the administration of chloroform, 

 which produce more or less effect on the 

 blood pressure and are as well often danger- 

 ous. Vomiting never seems to take place in 

 dogs under chloroform, as already noted. 

 The effects of struggling have been already 

 discussed. 



The inhalation of fluid when occurring 

 during anaesthesia is sometimes a source of 

 great danger. Tracing 25 is taken from a 

 dog under chloroform. When this tracing 

 begins he is already in the feet-down 

 position. At 9 two hundred ccs. of an 

 aqueous solution (of chloretone) were poured 

 down his throat. He swallowed distinctly 

 several times, but did not seem to breathe 

 again. The pressure after a slight transi- 

 tory rise fell rapidly, but the pulse remained 

 fast. At 10 he was placed horizontal, and 

 some rise of pressure occurred. Artificial 

 respiration was tried, but did not seem to 

 work well — no sign of life appeared and he 

 was evidently dead. On opening the thorax 

 the right side of the heart was found to be 

 enormously distended with blood, as were 

 also the veins entering it. The left side 

 was nearly empty. The lungs contained 



