. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: JACC Cardiovasc Imaging. 2016 Feb 17;9(3):243–252. doi: 10.1016/j.jcmg.2015.05.013

Table 1.

The Echocardiographic Characteristics of SCD Patients.

Echocardiographic measurement	No. of Patients	Value	Z-score	P ^*	Abnormal (%)
Left atrial volume index (ml/m²)	123	33.7± 9.9	3.1± 2.5	0.002	76 (62)
Left atrial diameter (cm)	134	3.29 ± 0.57	2.19 ±1.1	0.02	77 (57)^†
Right ventricular diameter (cm)	134	1.90 ± 0.48	−0.32 ±0.98	0.76	0 (0)^†
Interventricular septal diameter (cm)	134	0.79 ± 0.17	0.66 ±0.89	0.51	7 (5)^†
Left ventricular end-diastolic dimension (cm)	134	4.75 ± 0.64	0.79 ±1.15	0.43	19 (14)^†
Posterior wall thickness (cm)	134	0.78 ± 0.17	1.13 ±1	0.26	0 (0)^†
Shortening fraction (%)	134	37.6 ± 4.7	0.14 ±1.14	0.89	6 (4)^‡
Indexed left ventricular mass (g/m^2.7)	134	44.1 ± 12.3	N/A	N/A	77 (57)^§
Tricuspid regurgitant jet velocity (m/sec)	96	2.16 ±0.3	N/A	N/A	13 (14)^II

N/A: not applicable.

Values expressed as mean ± SD

P value for average z-score (comparison to normal)

^†

Number (percentage) of patients with z-score value>1.96

^‡

Number (percentage) of patients with shortening fraction values <29%

^§

Number (percentage) of patients with LVMi values >95th percentile for gender and age.

^II

Number (percentage) of patients with TRV >2.5m/sec.