Prakash Harikrishnan et al. JACEP 2015;1:529-538 Trends in Rates of TTVP Implantation in Patients With CHB Complicating STEMI The percentage of the temporary transvenous pacemaker (TTVP) implantation rate was calculated as the number of patients who underwent TTVP implantation divided by the number of STEMI patients with CHB per year × 100. (A) Trends in TTVP implantation in the overall cohort of patients with CHB complicating STEMI (ptrend = 0.91). (B) Trends in TTVP implantation in patients with CHB complicating anterior STEMI (ptrend <0.001), inferior STEMI (ptrend = 0.89), and other STEMI (ptrend <0.001). Abbreviations as in Figure 1. Prakash Harikrishnan et al. JACEP 2015;1:529-538 American College of Cardiology Foundation