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Table 4 Echocardiographic parameters [15]

From: Multicentre, randomised controlled trial of physiological-based cord clamping versus immediate cord clamping in infants with a congenital diaphragmatic hernia (PinC): statistical analysis plan

 

PBCC (n = 70)

ICC (n = 70)

Right ventricular systolic pressure (mmHg)

Mean ± SD or median [IQR]

Median [IQR]

Right ventricular size:

 - Normal (yes/no)

n (%)

n (%)

 - Dilated (yes/no)

n (%)

n (%)

Right ventricular function:

 - Normal (yes/no)

n (%)

n (%)

 - Impaired (yes/no)

n (%)

n (%)

Pulmonary artery acceleration time (PAAT; ms)

Mean ± SD or median [IQR]

Median [IQR]

Right ventricular ejection time (RVET; ms)

Mean ± SD or median [IQR]

Median [IQR]

PAAT to RVET ratio

Mean ± SD or median [IQR]

Median [IQR]

Interventricular septum configuration:

 - Normal (O-shaped; yes/no)

n (%)

n (%)

 - Flattened (D-shaped; yes/no)

n (%)

n (%)

 - Displaced (crescent-shaped; yes/no)

n (%)

n (%)

Left ventricular dimension parallel to the septum (D1)

Mean ± SD or median [IQR]

Median [IQR]

Left ventricular dimension perpendicular to the septum (D2)

Mean ± SD or median [IQR]

Median [IQR]

Left ventricular systolic eccentricity index: D1/D2

Mean ± SD or median [IQR]

Median [IQR]

Tricuspid regurgitation (yes/no)

n (%)

n (%)

Peak velocity of tricuspid regurgitation (m/s)

Mean ± SD or median [IQR]

Median [IQR]

Tricuspid annular plane systolic excursion (mm)

Mean ± SD or median [IQR]

Median [IQR]

Systolic duration (SD; ms)

Mean ± SD or median [IQR]

Median [IQR]

Diastolic duration (DD; ms)

Mean ± SD or median [IQR]

Median [IQR]

Right ventricular SD/DD ratio

Mean ± SD or median [IQR]

Median [IQR]

Transductal shunting direction:

 - Right-to-left (yes/no)

n (%)

n (%)

 - Left-to-right (yes/no)

n (%)

n (%)

 - Bidirectional (yes/no)

n (%)

n (%)

Transductal shunting peak flow velocity (m/s)

Mean ± SD or median [IQR]

Median [IQR]

Interatrial shunting direction

 - Right-to-left (yes/no)

n (%)

n (%)

 - Left-to-right (yes/no)

n (%)

n (%)

 - Bidirectional (yes/no)

n (%)

n (%)

  1. ICC Immediate cord clamping, IQR, interquartile range, PBCC, physiological-based cord clamping