TABLE 2.

Preoperative risk factors associated with lower (worse) postoperative TAPSE

Factor	Estimate ± SE	P value	Reliability (%)*
Overall
Higher preoperative TR			100
1+vs 0	0.13 ± 0.047	.006
2+vs 0	0.45 ± 0.047	<.0001
3+/4+vs 0	0.50 ± 0.051	<.0001
Higher heart rate†	−0.16 ± 0.079	.05	60
Larger LA area in systole‡	−4.9 ± 1.8	.005	99
Lower LVejection fraction§	0.22 ± 0.087	.01	65
Higher BUN‖	0.052 ± 0.019	.005	77
Early phase
Shorter RV base to apex length¶	−0.76 ± 0.41	.06	85
TV procedure	1.04 ± 0.52	.03
Late phase
Lower TV fractional shortening#	−7.04 ± 4.02	.07	88
Higher bilirubin**	0.72 ± 0.24	.006	83
No TV procedure	−0.72 ± 0.26	.006

BUN, Blood urea nitrogen; LA, left atrial; LV, left ventricular; RV, right ventricular; SE, standard error; TAPSE, tricuspid annular plane systolic excursion; TR, tricuspid regurgitation; TV, tricuspid valve.

^*Percentage of times factor appeared in 500 bootstrap models.

^†(75/heart rate), inverse transformation.

^‡(1/LA area in systole), inverse transformation.

^§(50/LV ejection fraction), inverse transformation.

^‖(BUN/20)², squared transformation.

^¶(RV base to apex length/7)², squared transformation.

^#(TV fractional shortening)², squared transformation.

^**Ln(bilirubin), natural logarithmic transformation.