Table 2.

Operative characteristics

	AVR (n = 197 (59.3%))	AVR-CABG (n = 135 (40.7%))	P-value
Additive EuroSCORE	5.8 ± 2.5	6.8 ± 2.4	0.001
	Median 6.0	Median 6.0
	IQR 3.5–7.5	IQR 5.0–8.0
Logistic EuroSCORE	6.6 ± 7.6	8.2 ± 8.3	0.007
	Median 5.1	Median 5.8
	IQR 2.3–8.5	IQR 4.0–10
Cross clamp time (min)	73 ± 24	108 ± 31	<0.001
	Median 76	Median 113
	IQR 51–87	IQR 83–132
Days on ITU	1.5 ± 3.2	2.2 ± 4.2	<0.001
	Median 1.0	Median 1.0
	IQR 1.0–1.0	IQR 1.0–1.0
Number of distal anastomosis	NA	1 (0.5%)	NA
0		54 (40%)
1		29 (22%)
2		28 (21%)
3		14 (10%)
4		8 (5.9%)
5		1 (0.7%)
6
Rethoracotomy	7 (3.6%)	15 (11%)	0.007
Cardiopulmonary bypass length (min)	99 ± 39	153 ± 49	<0.001
	Median 102	Median 151
	IQR 67–119	IQR 125–184
Prosthetic aortic valve diameter (mm)			0.020
			†
19	5 (2.8%)	5 (3.9%)	†
21	32 (18%)	27 (21%)	†
23	72 (40%)	62 (49%)	†
25	48 (27%)	26 (21%)	*
27	23 (13%)	7 (5.5%)
Preoperative haemoglobin (mmol/l)	8.5 ± 0.8	8.4 ± 0.9	0.317
	Median 8.5	Median 8.4
	IQR 7.9–9.0	IQR 7.6–9.0
Preoperative platelets (109/l)	237 ± 63	241 ± 93	0.487
	Median 228	Median 226
	IQR 194–228	IQR 186–264
Preoperative leucocytes (109/l)	7.8 ± 2.4	7.9 ± 2.3	0.532
	Median 7.5	Median 7.7
	IQR 6.5–8.5	IQR 6.4–9.1
Preoperative INR	1.2 ± 0.5	1.2 ± 0.6
	Median 1.0	Median 1.0
	IQR 1.0–1.1	IQR 1.0–1.1
ESR (mm/h)	14 ± 1.0	18 ± 1.5	0.002
	Median 9.0	Median 13.0
	Q1,Q3 5.0–18	Q1,Q3 7.0–22

*P-value between AVR and AVR + CABG is less than 0.05 for this variable

†P-value between AVR and AVR + CABG is more than 0.05 for this variable

ESR erythrocyte sedimentation rate, INR international normalised ratio, ITU intensive care unit, NA not applicable