92 CARDIAC 
was a kink in the inflation tube and I couldn't 
deflate the cuff. From that I got a chance to 
study an animal over one and a half hours with 
a totally arrhythmia-free failure at a stable 
level. It was a very nice opportunity. However, 
in order to deflate the balloon, I had to rupture 
it by further inflation, which led to a wild series 
MODELS 
of arrhythmias, flbrillation and death, as you'd 
expect. This gave me the opportunity to study 
an effective unilateral pumping as well, with 
left ventricular bypass alone, in a state of ven- 
tricular fibrillation. I could support this animal 
at marginal levels for three hours and then it 
deteriorated. 
