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Table 5 Comparison of longitudinal strain in different locations of QRS fragmentation

From: Fragmented QRS as an early predictor of left ventricular systolic dysfunction in healthy individuals: a nested case-control study in the era of speckle tracking echocardiography

Variables

fQRS location

P value

Anterior

Inferior

Lateral

ANTSEPT (%)

Base

16.40 ± 3.84

14.40 ± 3.20

14.20 ± 5.49

0.613

Mid

19.40 ± 3.04

17.1 ± 4.58

19.00 ± 3.53

0.515

POST (%)

Base

20.0 ± 2.0

18.40 ± 3.06

18.8 ± 2.28

0.558

Mid

21.6 ± 2.7

19.4 ± 2.22

20.4 ± 3.04

0.309

ANT (%)

Base

16.6 ± 1.14

17.60 ± 3.13

17.80 ± 4.49

0.809

Mid

22.20 ± 2.16

20.10 ± 4.01

18.60 ± 4.50

0.343

Apex

26.40 ± 2.88

23.30 ± 3.97

22.60 ± 5.63

0.321

INF (%)

Base

18.40 ± 1.94

16.50 ± 2.12

17.60 ± 1.51

0.215

Mid

21.80 ± 1.30

19.20 ± 2.78

19.80 ± 2.68

0.189

Apex

24.80 ± 3.7

24.20 ± 2.89

24.20 ± 6.94

0.965

LAT (%)

Base

16.40 ± 3.91

19.90 ± 3.81

17.20 ± 3.11

0.758

Mid

17.60 ± 3.78

21.00 ± 3.52

18.60 ± 4.27

0.238

Apex

21.80 ± 4.65

24.80 ± 4.04

22.80 ± 4.38

0.417

SEPT (%)

Base

16.40

15.20 ± 2.34

14.60 ± 1.81

0.385

Mid

19.80 ± 2.58

18.40 ± 2.50

18.0 ± 1.87

0.458

Apex

23.20 ± 2.28

23.60 ± 4.03

22.60 ± 3.78

0.127

A3C_GLS (%)

20.68 ± 1.39

18.67 ± 3.35

19.74 ± 3.11

0.462

A2C_GLS (%)

21.84 ± 0.88

20.43 ± 2.42

20.26 ± 1.49

0.366

A4C_GLS (%)

19.20 ± 2.22

20.69 ± 2.74

18.84 ± 2.46

0.360

GLS (%)

20.30 ± 0.51

19.94 ± 2.21

19.60 ± 1.88

0.841

  1. ANTSEPT: anteroseptal; POST: posterior; ANT: anterior; INF: inferior; LAT: lateral; SEPT: septal; A3C_GLS: GLS in apical three-chamber view; A2C_GLS: GLS in apical two-chamber view; A4C_GLS: GLS in apical four-chamber view
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Cardiovascular Ultrasound

ISSN: 1476-7120

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