Table 5.

Comparison between two groups of patients (preoperative LAD ≤ 45 mm in one group and ≥ 46 mm in another group).

Preoperative LAD		≤ 45 mm	≥ 46 mm	X2	SD	P
Postoperative SR	Absent	4	15	0.520	1	0.471
Total	Present	18	43
		22	58
Temporary pacemaker Total	Yes	4	10	0.010	1	0.921
	No	18	48
		22	58
SR on the day of discharge	Absent	9	7	8.292	1	0.004
Total	Present	13	51
		22	58
SR in the first month	Absent	9	10	4.934	1	0.026
	Present	13	48
		22	58
SR in the sixth month	Absent	9	13	2.737	1	0.098
Total	Present	13	45
		22	58

LAD=left atrial diameter; SD=standard deviation; SR=sinus rhythm