Nonsustained forms of V.T. runs
of repetitive vent. Impulses (rates > 100/m) lasting < 30s are
subgrouped into salvos of 3 to 5 consecutive impulses and nonsustained
VT of six or more impulses in duration.
Myerburg, R.J., M.D., Castellanos,
A., M.D., Kessler, K.M., M.D., Recognition, Clinical Assessment and
Management of Arrhythmias and Conduction Disturbances, Hurst's The Heart,
8th ed, p 736.