Table 7

CRT responses

Individual (M/F)QRS shorteningLVEF improvementBiomarker reduction (BNP or ProBNP)Overall response
FnoyesyesFavourable
MnoSlight improvementNAPossibly favourable
MNANANANon-responder*
FyesNANAPossibly favourable†
FNANANANA
MyesnonoPossibly favourable
MNAyesyesFavourable
MyesyesnoFavourable
MnoyesnoFavourable
FnononoNon-responder
  • *Patient died 3 years after the CRT implantation.

  • †Subjectively favourable, later follow-up elsewhere.

  • BNP, B-type natriuretic peptide; CRT, cardiac resynchronisation therapy; LVEF, left ventricular ejection fraction; QRS, QRS complex duration.