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Table 3 Comparison of LVEF, LV volumes, LV mass and LV necrotic mass by CMR before and after successful CTO recanalization

From: Benefits of chronic total coronary occlusion percutaneous intervention in patients with heart failure and reduced ejection fraction: insights from a cardiovascular magnetic resonance study

 

Successful CTO-PCI n = 29

 

Pre-PCI

Post-PCI

Difference

p

LVEF (%)

Mean 31.3 ± 7.4

Mean 37.7 ± 8

6.4

<0.001

Median (IQR) 32 (26–37)

Median (IQR) 39 (35–43)

LVEDV (ml)

Mean 230 ± 64

Mean 221 ± 58

−9.1

0.25

Median (IQR) 216 (182–257)

Median (IQR) 205 (185–262)

LVESV (ml)

Mean 160 ± 54

Mean 143 ± 58

−17

0.03

Median (IQR) 144 (127–194)

Median (IQR) 130 (106–166)

LV mass (g)

Mean 142 ± 43

Mean 139 ± 47

3.5

0.63

Median (IQR) 132 (107–164)

Median (IQR) 128 (108–157)

LV necrotic mass (g)

Mean 22 ± 12

Mean 20.4 ± 10.6

−1.6

0.13

Median (IQR) 19.2 (13–30.4)

Median (IQR) 18 (12.3–28.7)

  1. CTO indicates chronic total occlusion; IQR interquartile range, LV left ventricle, LVEF left ventricular ejection fraction, LVEDV left ventricular end-diastolic volume, LVESV left ventricular end-systolic volume, PCI percutaneous coronary intervention