| Abstrakt: |
This article focuses on the subthreshold stimulation of the heart. In their visionary experiments, A.N. Drury and W.S. Love demonstrated the capability of an electrical stimulus to alter cardiac excitability without itself producing a recordable evoked response. This article summarizes the information that has accumulated on subthreshold cardiac stimulation in the more than 60 years that have elapsed between Drury and Love's seminal observations. It is important to recognize the distinction between a subthreshold stimulus, i.e., a stimulus that produces no regenerative response whatsoever, and an unpropagated stimulus, i.e., a stimulus that evokes a local response but goes no further. |
Plný text