Table 2.

Calculated parameters of verapamil effects

Time, min	VWV, μm/s	FS, %	EF, %
Initial	630  ± 86	40  ± 6	77  ± 6
1	572  ± 109	40  ± 5	77  ± 6
2	366  ± 69	23  ± 5	56  ± 8
3	504  ± 104	29  ± 4	63  ± 7
4	585  ± 66	35  ± 3	73  ± 4

VWV, ventral wall velocity; FS, fractional shortening; EF, ejection fraction.