Skip to main content

Table 3 Comparison of dyssynchrony measurements in three ventricular slices in patients with and without LBBB, and healthy subjects.

From: Circumferential myocardial strain in cardiomyopathy with and without left bundle branch block

  

LBBB

Non-LBBB

Healthy

p(LBBB vs. non LBBB)*

p(LBBB vs. healthy)*

p(non-LBBB vs. healthy)*

Basal

IL-AS (ms)

(range)

391 ± 37 (325-425)

136 ± 79

(0-325)

45 ± 23

(0-75)

< 0.0001*

< 0.0001*

0.001*

 

AL-IS (ms)

(range)

284 ± 119 (150-425)

106 ± 54

(0-200)

68 ± 64

(0-175)

0.001*

0.0002*

0.171

 

A-I (ms)

(range)

122 ± 145 (0-400)

83 ± 85

(0-225)

68 ± 32

(0-100)

0.478

0.272

0.594

Mid

IL-AS (ms)

(range)

353 ± 79 (245-425)

82 ± 44

(25-140)

69 ± 39

(0-125)

< 0.0001*

< 0.0001*

0.451

 

AL-IS (ms)

(range)

283 ± 108 (125-400)

114 ± 37

(25-175)

50 ± 46

(0-125)

0.0002*

< 0.0001*

0.002*

 

A-I (ms)

(range)

168 ± 164 (0-475)

69 ± 46

(0-175)

64 ± 55

(0-150)

0.097

0.084

0.791

Apical

IL-AS (ms)

(range)

278 ± 118 (140-425)

61 ± 47

(0-325)

38 ± 41

(0-75)

< 0.0001*

< 0.0001*

0.260

 

AL-IS (ms)

(range)

224 ± 118 (150-425)

70 ± 63

(0-200)

54 ± 24

(0-175)

0.002*

0.001*

0.437

 

A-I (ms)

(range)

96 ± 110 (0-300)

48 ± 43

(0-150)

34 ± 20

(0-75)

0.200

0.093

0.601

T12SD (ms)

 

164 ± 30 (131-207)

70 ± 17

(51-103)

65 ± 17

(44-97)

< 0.0001*

< 0.0001*

0.467

  1. Data presented as absolute time difference between the two walls ± standard deviation. *with Bonferroni correction for multiple comparisons, p < 0.017 was considered significant. IL-AS = inferolateral wall to anteroseptal wall. AL-IS = anterolateral wall to inferoseptal wall. A-I = Anterior wall to inferior wall.