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Table 2 Resting and peak stress clinical and echocardiographic characteristics at baseline and follow-up in the patient

From: Exercise-induced left bundle branch block and subsequent mechanical left ventricular dyssynchrony -resolved with pharmacological therapy

  Baseline 5-month after
pharmacological therapy
  Rest Peak stress Rest Peak stress
Clinical parameters     
   Heart rate (bpm) 60 138 54 135
   Systolic blood pressure (mmHg) 136 184 118 176
   Diastolic blood pressure (mmHg) 64 106 58 102
   Double product (mmHg/min) 8160 25392 6372 23760
Echocardiographic parameters     
   LV end-diastolic volume (ml) 108 109 87 88
   LV end-systolic volume (ml) 70 76 44 40
   LV ejection fraction (%) 35 30 49 54
   Mitral inflow pattern impaired LV relaxation impaired LV relaxation normal normal
   E/E' 18.9 19.3 11.4 10.9
   Radial dyssynchrony by speckle tracking strain (ms) 45 260 42 48
  1. E, early diastolic wave velocity; E', early diastolic mitral annular velocity; LV, left ventricular