Pilot data showing change in high sensitivity troponin T (hs-TnT; ng/L) level in four patients after implantation and device testing. Values are shown prior to implantation (baseline), and 6–8 h and 24 h after completion of the implant and testing procedure. In all four subjects, there was a significant rise in hs-TnT at 6–8 h, with no further increase seen at 24 h.