438 



PHYSIOLOGY OF INDUCED HYPOTHERMIA 



Continued — from preceding page 

 Series III.— Blocked Dogs, Slow, Surface Cooling 



Ventricular 

 Expt. tachycardia 

 no. (° C.) 



30 — 



31 — 



40 — 



41 21.7 



42 



Lowest 



recorded 



temp. 



rc.) 



18.2, CA 



20.5, VF 



21.6, VF 

 18.9, VF 

 21.5, VF 



Rate of 



cooling 



decrement 



per 15 min. 



(°C.) 



1.1 



1.0 

 1.7 

 0.9 

 0.9 



Series IV. — Blocked Dogs, Slow, Extracorporeal Cooling 



Lowest 

 Ventricular recorded 



FxT)t tachycardia temp. 



no r'c.) rc.) 



43 26.7 20.5, RW 



44 . — 24.3, VF 



45 — 18.6, CA 



46 31.3 20.2, RW 



Abbreviations: VF. Ventricular Fibrillation; CA, Cardiac Arrest; RW. Rewarmed. 



Rate of 



cooling 



decrement 



per 15 niin. 



rc.) 



0.9 

 0.9 

 1.0 

 0.9 



