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Table 2 ECG parameters before and after ASD closure in device and surgical group

From: Comparison of the early cardiac electromechanical remodeling following transcatheter and surgical secundum atrial septal defect closure in adults

  Group 1 (device closure)   Group 2 (surgical closure)  
  Before After P value Before After P value
HR (bpm) 92 ± 10.14 78 ± 6.76 < 0.001 93 ± 9.59 78.67 ± 11.87 < 0.001
P max(ms) 97.33 ± 16.67 76 ± 15.49 < 0.001 97.33 ± 12.79 73.33 ± 16.32 < 0.001
P min(ms) 68 ± 16.56 48.67 ± 12.45 < 0.001 66.67 ± 12.34 45.33 ± 11.87 < 0.001
Pd (ms) 29.33 ± 10.32 27.33 ± 9.61 0.42 32 ± 12.64 28 ± 10.14 0.08
QRS (ms) 104 ± 18.82 80 ± 18.51 < 0.001 106.67 ± 14.47 86.67 ± 17.99 < 0.001
QTc max(ms) 478.53 ± 36.79 412.53 ± 38.03 < 0.001 470.53 ± 65.70 405.93 ± 63.08 < 0.001
QTD (ms) 70.33 ± 24.04 60.26 ± 28.56 0.003 80.73 ± 30.38 60.27 ± 28.57 0.001
  1. P max P wave maximum, P min P wave minimum, Pd P wave dispersion, QTD QTdispersion. Data expressed as frequency (percentage), mean (SD). P value was significant if < 0.05