Right Anterior Minithoracotomy Is an Alternative, Less Invasive Approach to Median Sternotomy during Aortic Valve Replacement for Patients with Low Left Ventricular Ejection Fraction

Table 2

Cardiac function between patients with low LVEF undergoing AVR through right anterior minithoracotomy and patients undergoing AVR through median sternotomy.

Group	Case	Time	LVEDD (mm)	LVFS (%)	LVEF (%)
Median sternotomy	43	Before operation
		After operation
Right anterior minithoracotomy	43	Before operation
		After operation
(median sternotomy)			5.632/0.013	6.146/0.001	7.042/0.001
(right anterior minithoracotomy)			14.510/0.001	7.510/0.001	8.050/0.001
(group comparison after treatment)			7.154/0.001	4.972/0.017	6.134/0.001

LVEF: left ventricular ejection fraction; LVEDD: left ventricular end diastolic dimension; LVFS: left ventricular fractional shortening.