Parameters

1 month

3 months

6 months

12 months

Change in patient’s view of progress of QOL

Improved

No change

Worse

3

8

0

5

6

0

9

2

0

10

1

0

Change in NYHA functional class

Improved by two or more classes

Improved by one class

No change

Worsened

0

1

10

0

3

6

2

0

6

3

2

0

6

4

1

0

Mean Interval QRS duration (msec)

Mean LV ejection fraction (%)

Mean LV end-diastolic dimension (mm)

Mean LV systolic dimension (mm)

131 ± 5

-

61 ± 3

44 ± 15

-

29 ± 3

59 ± 8

42 ± 8

130 ± 12

36 ± 3

57 ± 13

37 ± 4

130 ± 9

40 ± 3

56 ± 6

35 ± 7