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Table 2 Electrocardiographic changes and arrhythmia before, during and after therapeutic hypothermia

From: Electrocardiographic changes in therapeutic hypothermia

  Before TH During TH After TH
Heart rate (beats/minute) 95 ± 26 58 ± 15 87 ± 17
PQ duration (milliseconds) 172 ± 45 175 ± 44 155 ± 34
QRS duration (milliseconds) 103 ± 28 99 ± 21 89 ± 18
QTc (milliseconds) 466 ± 54 498 ± 65 460 ± 55
LAFB 14 7 6
Osborn waves 0 24 2
ST elevation 38 22 12
ST depression 79 74 68
Right bundle branch block 7 9 8
Left bundle branch block 0 1 0
Q wave 15 23 21
Atrial fibrillation 16 4 4
Atrioventricular nodal rhythm 6 3 3
Ventricular tachycardia/ventricular fibrillation 6 1 0
  1. Data presented as mean ± standard deviation or n (%). TH, therapeutic hypothermia.