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Table 1 Changes in MRI derived RV volumetric, global functional indices and contraction pattern between pre Hemi-Fontan and pre-total cavopulmonary connection exams.

From: Right ventricular function and adaption after hemi-Fontan completion in children with hypoplastic left heart syndrome

 

Pre-HF

Pre-TCPC

p-value

Indexed EDV (ml/m2)

95

81

0.02

Indexed ESV (ml/m2)

46

34

<.01

Ejection Fraction (%)

52

59

<.01

Cardiac Index (L/min/m2)

5.03

4.08

<.01

Longitudinal strain (%)

-15.2

-16.2

0.26

Radial strain (%)

26.3

37.1

<.01

Circumferential strain (%)

-15.1

-19.1

<.01

Long/circ strain ratio

1.04

0.84

<.01

Mechanical dyssynchrony index (%)

11.4

7.2

<.01

  1. Pre-HF; pre hemi-Fontan, pre-TCPC; pre-total cavopulmonary connection, EDV; end diastolic volume, ESV; end systolic volume, SV; stroke volume. Mechanical dyssynchrony; standard deviation of time to peak radial systolic strain / duration of contraction.