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Table 4 CMR-Based Change in Treatment

From: Clinical utility of cardiovascular magnetic resonance imaging in patients with implantable cardioverter defibrillators presenting with electrical instability or worsening heart failure symptoms

Post-CMR Treatment

All patients (n = 208)

All patients Change in treatment

Primary prevention (n = 115)

Primary prevention Change in treatment

Secondary prevention (n = 93)

Secondary prevention Change in treatment

Coronary Revasc

10

10 (5)

5

5 (4)

5

5 (5)

CRT upgrade

3

3 (1)

2

2 (2)

1

1 (1)

LVAD

2

1 (0.5)

2

1 (1)

0

0 (0)

Medical therapy

56

27 (13)

32

15 (13)

24

12 (13)

PVI

13

1 (0.5)

8

1 (1)

5

0 (0)

PV angioplasty

1

1 (0.5)

1

1 (1)

0

0 (0)

VT ablation

123

0 (0)

65

0 (0)

58

0 (0)

Total

208

43 (21)

115

25 (22)

93

18 (19)*

  1. Values are n (%) for all, primary and secondary prevention groups. Coronary Revasc, coronary revascularization procedure; CRT cardiac resynchronization therapy LVAD left ventricular assist device; PVI pulmonary venous isolation procedure; PV pulmonary vein; VT ventricular tachycardia. * p = 0.673 for the comparison of primary versus secondary prevention