The Efficacy and Outcome of Ministernotomy Compared to Those of Standard Sternotomy for Aortic Valve Replacement

Table 1

Comparing preoperative characteristics and morbidities between 2 groups.

Preoperative characteristics	Aortic valve replacement	Aortic valve replacement	𝑃 value
	Minithoracotomy (𝑛=44)	Sternotomy (𝑛=303)
Age (y)	71.8±12.6	67.4±13.8	0.0452*
Sex
(i) Male	13 (29.5%)	154 (50.8%)	0.0095**
(ii) Female	31 (70.4%)	149 (49.2%)	0.0095**
BMI (kg/m^2)	27.3±5.10	29.7±21.7	0.47
BSA (m^2)	1.78±0.23	1.85±0.23	0.07
Hypertension	36 (82%)	263 (86.8%)	0.36
Diabetes	15 (34%)	122 (40.3%)	0.51
Current smoking	10 (22%)	52 (17.2%)	0.40
Any angina pectoris	4 (9%)	30 (9.9%)	1.00
Previous myocardial infarction	8 (18%)	55 (18.2%)	0.67
Chronic heart failure	14 (31.8%)	101 (33.3%)	1.00
Atrial fibrillation	3 (6.8%)	30 (9.9%)	0.78
Infectious endocarditis	1 (2.2%)	29 (9.6%)	0.15
Stroke	5 (11.3%)	55 (18.2%)	0.39
Peripheral-vascular disease	10 (22.7%)	49 (16.2%)	0.29
COPD/asthma	11 (25%)	52 (17.2%)	0.21
Renal failure requiring dialysis	0 (0%)	26 (85.8%)	0.06
Any previous cardiac surgery	4 (9%)	29 (9.6%)	1.00
HIV infection	0 (0%)	7 (2.3%)	0.60
Hepatitis C infection	1 (2.2%)	30 (9.9%)	0.15
Hematocrit (%)	37.6±4.73	36.1±5.09	0.31
Platelets (×10^3/𝜇L)	243.9±72.3	226.8±81.8	0.22