PMID- 26090916 OWN - NLM STAT- MEDLINE DCOM- 20160525 LR - 20150831 IS - 1558-2035 (Electronic) IS - 1558-2027 (Linking) VI - 16 IP - 10 DP - 2015 Oct TI - Prognostic significance of myocardial extracellular volume fraction in nonischaemic dilated cardiomyopathy. PG - 681-7 LID - 10.2459/JCM.0000000000000275 [doi] AB - AIMS: In nonischaemic dilated cardiomyopathy (NICM), replacement myocardial fibrosis as detected by late gadolinium enhancement (LGE) at cardiovascular magnetic resonance (CMR) is associated with poor prognosis. We investigated the as-yet unexplored prognostic significance of interstitial fibrosis in NICM, using T1-mapping CMR. METHODS: Eighty-nine NICM patients (63 men, age 59 +/- 14 years) with left ventricular systolic dysfunction (ejection fraction 41 +/- 13%) underwent comprehensive clinical and CMR evaluation, with extracellular volume fraction (ECV) estimation from pre and postcontrast T1 mapping. Fifteen healthy individuals (11 men, mean age 52 +/- 11 years) were used as controls. The end-point was a composite of cardiovascular death, hospitalization for heart failure and appropriate defibrillator intervention. RESULTS: Myocardial ECV was higher in NICM patients (0.31 +/- 0.05) than controls (0.25 +/- 0.04, P < 0.01). In NICM patients, myocardial ECV correlated with left ventricular ejection fraction (R = 0.13), LGE extent (R = 0.17), Doppler E/E' (R = 0.17) and ventricular tachycardias (R = 0.21) at 24-h ECG monitoring (P < 0.05 for all). During a median follow-up of 24 months (interquartile range 12-42 months), 12 events occurred and higher myocardium ECV was independently associated with the occurrence of the composite end-point (P < 0.01). CONCLUSION: In NICM patients, myocardial ECV was increased compared with normal individuals, likely reflecting extracellular matrix remodelling and collagen deposition, and resulted an independent prognostic predictor beyond all other conventional clinical, electrocardiographic and echocardiographic parameters. FAU - Barison, Andrea AU - Barison A AD - aFondazione Toscana Gabriele Monasterio bScuola Superiore Sant'Anna, Pisa cI.R.C.C.S Policlinico San Donato, San Donato, Milanese, Italy dBiomedical Sciences, Katholieke Universiteit, Leuven, Belgium. FAU - Del Torto, Alberico AU - Del Torto A FAU - Chiappino, Sara AU - Chiappino S FAU - Aquaro, Giovanni Donato AU - Aquaro GD FAU - Todiere, Giancarlo AU - Todiere G FAU - Vergaro, Giuseppe AU - Vergaro G FAU - Passino, Claudio AU - Passino C FAU - Lombardi, Massimo AU - Lombardi M FAU - Emdin, Michele AU - Emdin M FAU - Masci, Pier Giorgio AU - Masci PG LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Cardiovasc Med (Hagerstown) JT - Journal of cardiovascular medicine (Hagerstown, Md.) JID - 101259752 RN - 0 (Contrast Media) SB - IM CIN - J Cardiovasc Med (Hagerstown). 2016 Mar;17(3):226-7. PMID: 26825332 CIN - J Cardiovasc Med (Hagerstown). 2016 Mar;17(3):227. PMID: 26825333 MH - Adult MH - Aged MH - Cardiomyopathies/*physiopathology MH - Cardiomyopathy, Dilated/*physiopathology MH - Case-Control Studies MH - Contrast Media MH - Echocardiography MH - Female MH - Heart Failure/*physiopathology MH - Humans MH - Linear Models MH - Magnetic Resonance Imaging, Cine/methods MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Prognosis MH - Prospective Studies MH - Reproducibility of Results MH - Stroke Volume/*physiology MH - Survival Analysis MH - Ventricular Dysfunction, Left/*physiopathology EDAT- 2015/06/20 06:00 MHDA- 2016/05/26 06:00 CRDT- 2015/06/20 06:00 PHST- 2015/06/20 06:00 [entrez] PHST- 2015/06/20 06:00 [pubmed] PHST- 2016/05/26 06:00 [medline] AID - 10.2459/JCM.0000000000000275 [doi] PST - ppublish SO - J Cardiovasc Med (Hagerstown). 2015 Oct;16(10):681-7. doi: 10.2459/JCM.0000000000000275.