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Intensive Care Medicine Experimental

Table 3 Mechanical and electromechanical variables

From: Changes in left ventricular electromechanical relations during targeted hypothermia

 

Spontaneous HR

HR 100 bpm

38 °C

33 °C

p

38 °C

33 °C

p

QAVO(ms)

91 ± 11

97 ± 10

0.071

89 ± 8

99 ± 7

0.076

QAVC(ms)

353 ± 17

501 ± 24

 < 0.001

341 ± 20

456 ± 11

 < 0.001

AVO-AVC(ms)

275 ± 47

379 ± 27

 < 0.001

257 ± 20

336 ± 17

 < 0.001

ETpw(ms)

302 ± 36

382 ± 43

0.001

282 ± 22

344 ± 49

0.014

IVCT(ms)

39 ± 11

43 ± 12

0.409

45 ± 2

51 ± 10

0.301

IVRT(ms)

62 ± 13

71 ± 20

0.081

64 ± 19

67 ± 21

0.685

EMW(ms)

− 20 ± 19

27 ± 34

0.001

− 25 ± 26

41 ± 18

 < 0.001

MD(ms)

29 ± 11

36 ± 17

0.078

47 ± 16

40 ± 23

0.297

  1. Data are expressed as mean ± SD
  2. QAVO Q onset to aortic valve opening, QAVC Q onset to aortic valve closing, AVO-AVC aortic valve opening to aortic valve closing, ETpw left ventricular outflow tract ejection time, Doppler registered, IVCT isovolumic contraction time, IVRT isovolumic relaxation time, EMW electromechanical window: QAVC – QT, MD mechanical dispersion
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