The Propensity for Inducing Atrial Fibrillation: A Comparative Study on Old versus Young Rabbits

Table 1

Comparison of atrial fibrillation induction in old versus young rabbits.

Rabbit	Baseline	10 𝜇M ACh	100 𝜇M ACh	1 mM ACh
Old #1	0	0	0	0
Old #2	<1^a	1 and 4^a	10	118
Old #3	<1	2	15	11
Old #4	0	0	11	3
Old #5	0	0	<1	681
Old #6	0	0	<2	960
Young #1	<1^a	0	0	0
Young #2	<1	0	0	0
Young #3	0	0	0	2
Young #4	0	0	0	0
Young #5	0	0	0	0
Young #6	<1^a	0	0	4
Young #7	<1	0	0	0
Young #8	0	0	0	3
Young #9	0	0	0	0

Numbers represent the duration (in seconds) of atrial fibrillation or atrial tachycardia induced.
^aAtrial tachycardia.