A system for controlling an infusion of fluid into living tissue includes a catheter shaped to be introduced within living tissue and operable to deliver a fluid to a location within the living tissue, a fluid infusion pump mechanically coupled to the catheter and operable to pump fluid through the catheter and, thereby, into the location, the fluid infusion pump having at least two fluid pumping states, a fluid pressure monitor fluidically coupled to the catheter and operable to measure a pressure of the fluid within the catheter, and a processor communicatively coupled to the fluid infusion pump and the fluid pressure monitor, the processor operable to select between the at least two fluid pumping states based upon the measured pressure of the fluid within the catheter.
