Surgical Treatment of Concomitant Atrial Fibrillation: Focus onto Atrial Contractility

Table 2

Univariate and multivariate analysis for freedom from AF recurrence at 2-year follow-up.

Factors	Univariate   value	Multivariate analysis
		HR	95% CI	value
AF duration (>36 months)	<0.0001	1.402	1.13–1.78	0.02
3-month left AC restoration	<0.0001	1.238	1.07–1.52	0.03
6-month left AC restoration	<0.0001	1.127	1.05–1.48	0.04
AF at discharge	0.003	0.841	0.49–1.23	0.21
Cross-clamp time	0.13
Age	0.23
Rheumatic disease	0.13
PAP	0.09
Sex	0.25
Permanent/persistent AF	0.18
Postoperative bleeding	0.26
CPB time	0.24
LAD (mm)	0.17
LAA (cm^2)	0.12
LVESD (mm)	0.28
LVEDD (mm)	0.25
LVEF (%)	0.31

Not all factors were entered into multivariate model.
AF, atrial fibrillation; CI, confidence interval; CPB, cardiopulmonary bypass; HR, hazard ratio; LAA, left atrial area; LAD, left atrial diameter; LVEDD, left ventricular end-diastolic diameter; LVEF, left ventricular ejection fraction; LVESD, left ventricular end-systolic diameter; PAP, pulmonary artery pressure.