Table 3.

Synchrony parameters pre- and post-PVR (n = 36)

Parameter	Pre-PVR	Post-PVR	P-value
Left ventricle
Longitudinal strain
Maximum difference in time-to-peak	315 ± 185	351 ± 196	0.33
Standard deviation of time-to-peak	121 ± 73	139 ± 82	0.23
Cross-correlation delay	301 ± 218	340 ± 242	0.39
Circumferential strain: base
Maximum difference in time-to-peak	233 ± 172	151 ± 120	0.01
Standard deviation of time-to-peak	89 ± 63	58 ± 48	0.02
Cross-correlation delay	217 ± 182	107 ± 77	0.0001
Circumferential strain: mid
Maximum difference in time-to-peak	124 ± 75	107 ± 55	0.02
Standard deviation of time-to-peak	49 ± 27	43 ± 20	0.15
Cross-correlation delay	106 ± 113	77 ± 53	0.13
Circumferential strain: apex
Maximum difference in time-to-peak	58 ± 46	47 ± 44	0.27
Standard deviation of time-to-peak	28 ± 22	23 ± 21	0.26
Cross-correlation delay	99 ± 146	42 ± 24	0.04
Right ventricle
Longitudinal strain
Maximum difference in time-to-peak	249 ± 176	337 ± 170	0.02
Standard deviation of time-to-peak	97 ± 70	128 ± 64	0.02
Cross-correlation delay	258 ± 171	254 ± 179	0.91
Circumferential strain: base
Maximum difference in time-to-peak	361 ± 198	265 ± 155	0.01
Standard deviation of time-to-peak	136 ± 70	99 ± 59	0.004
Cross-correlation delay	342 ± 285	341 ± 286	0.56
Circumferential strain: mid
Maximum difference in time-to-peak	214 ± 133	268 ± 179	0.11
Standard deviation of time-to-peak	96 ± 55	101 ± 66	0.73
Cross-correlation delay	268 ± 216	263 ± 224	0.93
Circumferential strain: apex
Maximum difference in time-to-peak	95 ± 84	129 ± 97	0.047
Standard deviation of time-to-peak	43 ± 37	60 ± 43	0.03
Cross-correlation delay	119 ± 148	126 ± 145	0.82

Values expressed as mean ± standard deviation in ms