Table 1

Baseline characteristics of the overall population and by cardiomyopathy type

All patients
(n=84)
ICM
(n=43)
NICM
(n=41)
Clinical characteristics
 Age (mean±SD, in years)62±1266±957±12
 Female (%)373539
 Diabetes mellitus (%)212815
 Hypertension (%)402854
 Hyperlipidaemia (%)424439
 Atrial fibrillation* (%)293522
 NYHA Class III/IV (%)909190
ECG pre-CRT
 Presence of LBBB (%)504061
 QRS duration (mean±SD in ms)151±24147±23154±24
Echo characteristics
 EF pre-CRT (mean %±SD)23±821±826±8
 EF ≥3 months post CRT (mean %±SD)34±1428±1340±13
 CMR characteristics
 LVEF (mean %±SD)24±920±828±9
 Total scar % (mean %±SD)15±1726±165±10
  • *Includes permanent, persistent and paroxysmal atrial fibrillation.

  • EF, ejection fraction;ICM, ischaemic cardiomyopathy;LBBB, left bundle branch block;LVEF, left ventricular ejection fraction;NICM, non-ischaemic cardiomyopathy;NYHA, New York Heart Association;QRS, QRS complex duration in ms.