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Table 1 Preoperative variables. Data are presented as mean ± standard deviation or as number of patients with percentages. TIA, transitory ischemic attack; NYHA, New York Heart Assotiation; CHADS-VASc, congestive heart failure, hypertenstion, age, diabetes, prior stroke, vascular disease history, age, sex; LV EF, left ventricular ejection fraction; LVED, left ventricular end-diastolic diameter

From: Assessment of the effect of left atrial cryoablation enhanced by ganglionated plexi ablation in the treatment of atrial fibrillation in patients undergoing open heart surgery

  Group GP n = 35 Group LA n = 65 p value
Age 69 ± 6.4 69 ± 7.4 0.617
Sex (M/F) 18/17 (51/49) 31/34 (48/52) 0.721
Body mass index 31 ± 4.9 30 ± 4.9 0.099
Hypertension 32 (91) 53 (81) 0.186
Diabetes mellitus 9 (26) 12 (18) 0.396
Creatinine 103 ± 45.4 102 ± 27.2 0.298
Stroke/TIA 2 (6) 14 (22) 0.040
Redo cardiac surgery 0 1 (2)  
NYHA 2 2 0.999
Euroscore II 4 ± 2.4 4 ± 4.7 0.301
CHA2DS2-VASc score 3.8 ± 1.4 3.6 ± 1.5 0.387
Structural cardiac disease
 Mitral valve disease 25 (71) 49 (75) 0.667
 Tricuspidal valve disease 17 (49) 34 (52) 0.721
 Aortic valvae disease 6 (17) 18 (28) 0.239
 Coronary artery disease 21 (60) 32 (49) 0.303
 Other 4 (11) 15 (23) 0.157
LV EF (%) 45 ± 10.2 50 ± 9.8 0.057
 EF LK > 50% 15 (43) 42 (65)  
 EF LK 30–50% 17 (49) 20 (31)  
 EF LK < 30% 3 (8) 3 (4) 0.109
Left atrium diameter (mm) 45 ± 4.8 47 ± 5.5 0.544
LVED diameter (mm) 54 ± 6.7 51 ± 5.8 0.086