Table 3 The associations of LV mechanical dispersion calculated as the standard deviation of time-to-peak longitudinal strain across the entire cardiac cycle (MD), normalised time-to-peak values to the RR interval and expressing it as a percentage of the cardiac cycle (MDN), restricted to patients without conduction abnormalities (MDE) and restricted to systole (MDS).

From: The left ventricular mechanical dispersion as a marker of disease severity in transthyretin cardiac amyloidosis

Variable

MD

p value

MDN

p value

MDE

p value

MDS

p value

ATTRwt

0.003

< 0.001

0.02

0.97

Male gender

0.002

0.003

0.009

0.62

Age

< 0.001

< 0.001

< 0.001

0.23

Carpal tunnel syndrome

0.004

0.059

0.12

0.04

NYHA

< 0.001

< 0.001

0.03

0.42

NT-proBNP

< 0.001

< 0.001

< 0.001

0.23

Perugini grade

< 0.001

< 0.001

0.002

0.051

Six-minute walk test

< 0.001

< 0.001

< 0.001

0.21

LV mass index

< 0.001

< 0.001

< 0.001

0.20

LV ejection fraction

< 0.001

< 0.001

0.01

0.16

GLS

< 0.001

< 0.001

0.001

0.62

Apical sparing

0.01

0.02

0.03

0.78

E/E’

< 0.001

< 0.001

< 0.001

0.08

RV wall thickness

0.003

0.006

0.049

0.69

TAPSE

< 0.001

< 0.001

0.017

0.52

RV VTI

0.001

0.002

0.07

0.86

RV TDI S’

< 0.001

< 0.001

0.03

0.49

‘’5-5-5’’ sign

0.001

< 0.001

0.006

0.28

  1. * Values considered statistically significant are indicated in bold font. Abbreviations are listed in the legends of Tables 1 and 2.
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