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Two errors occurred in the article: Proietti, et al. PACE Volume 35, Issue 8, pages 990–998, August 2012 entitled “Closed Loop Stimulation is Effective in Improving Heart Rate and Blood Pressure Response to Mental Stress: Report of a Single-Chamber Pacemaker Study in Patients with Chronotropic Incompetent Atrial Fibrillation”:

  1. Fig 4 and 5 are switched: Fig 4 should show HR increase and Fig 5 percentage of pacing.
  2. Table IV: Peak systolic blood pressure (Peak SBP) numbers in the table are incorrect. The correct numbers are:
Table IV. Within-subjects effects on Hemodynamic outcomes
OutcomesCLSASVVIp-value
  1. SBP = Systolic Blood Pressure.

Peak Heart rate92.8 ± 12.678.9 ± 6.577.8 ± 7.5≤0.001
Heart rate increase22.7 ± 16.78.2 ± 8.66.6 ± 6.3≤0.001
Peak SBP172.6 ± 15.5156.7 ± 12.2145.5 ± 13.7≤0.001
SBP increase51.8 ± 24.718.4 ± 13.716.4 ± 10.3≤0.001
% Pacing48.4 ± 17.927.4 ± 17.525.8 ± 17.6≤0.001