PMID- 23934992 OWN - NLM STAT- MEDLINE DCOM- 20131114 LR - 20220318 IS - 1942-0080 (Electronic) IS - 1941-9651 (Linking) VI - 6 IP - 5 DP - 2013 Sep TI - Myocardial fibrosis as a key determinant of left ventricular remodeling in idiopathic dilated cardiomyopathy: a contrast-enhanced cardiovascular magnetic study. PG - 790-9 LID - 10.1161/CIRCIMAGING.113.000438 [doi] AB - BACKGROUND: In idiopathic dilated cardiomyopathy, there are scarce data on the influence of late gadolinium enhancement (LGE) assessed by cardiovascular magnetic resonance on left ventricular (LV) remodeling. METHODS AND RESULTS: Fifty-eight consecutive patients with idiopathic dilated cardiomyopathy underwent baseline clinical, biohumoral, and instrumental workup. Medical therapy was optimized after study enrollment. Cardiovascular magnetic resonance was used to assess ventricular volumes, function, and LGE extent at baseline and 24-month follow-up. LV reverse remodeling (RR) was defined as an increase in LV ejection fraction >/=10 U, combined with a decrease in LV end-diastolic volume >/=10% at follow-up. DeltaLGE extent was the difference in LGE extent between follow-up and baseline. LV-RR was observed in 22 patients (38%). Multivariate regression analysis showed that the absence of LGE at baseline cardiovascular magnetic resonance was a strong predictor of LV-RR (odds ratio, 10.857 [95% confidence interval, 1.844-63.911]; P=0.008) after correction for age, heart rate, New York Heart Association class, LV volumes, and LV and right ventricular ejection fractions. All patients with baseline LGE (n=26; 45%) demonstrated LGE at follow-up, and no patient without baseline LGE developed LGE at follow-up. In LGE-positive patients, there was an increase in LGE extent over time (P=0.034), which was inversely related to LV ejection fraction variation (Spearman rho, -0.440; P=0.041). Five patients showed an increase in LGE extent >75th percentile of DeltaLGE extent, and among these none experienced LV-RR and 4 had a decrease in LV ejection fraction >/=10 U at follow-up. CONCLUSIONS: In patients with idiopathic dilated cardiomyopathy, the absence of LGE at baseline is a strong independent predictor of LV-RR at 2-year follow-up, irrespective of the initial clinical status and the severity of ventricular dilatation and dysfunction. The increase in LGE extent during follow-up was associated with progressive LV dysfunction. FAU - Masci, Pier Giorgio AU - Masci PG AD - Fondazione CNR/Regione Toscana "G. Monasterio," Pisa, Italy. FAU - Schuurman, Robert AU - Schuurman R FAU - Andrea, Barison AU - Andrea B FAU - Ripoli, Andrea AU - Ripoli A FAU - Coceani, Michele AU - Coceani M FAU - Chiappino, Sara AU - Chiappino S FAU - Todiere, Giancarlo AU - Todiere G FAU - Srebot, Vera AU - Srebot V FAU - Passino, Claudio AU - Passino C FAU - Aquaro, Giovanni Donato AU - Aquaro GD FAU - Emdin, Michele AU - Emdin M FAU - Lombardi, Massimo AU - Lombardi M LA - eng PT - Journal Article PT - Video-Audio Media DEP - 20130809 PL - United States TA - Circ Cardiovasc Imaging JT - Circulation. Cardiovascular imaging JID - 101479935 RN - 0 (Contrast Media) RN - K2I13DR72L (Gadolinium DTPA) SB - IM CIN - Circ Cardiovasc Imaging. 2013 Nov;6(6):e77. PMID: 24254487 CIN - Circ Cardiovasc Imaging. 2013 Nov;6(6):e78. PMID: 24254488 CIN - Circ Cardiovasc Imaging. 2013 Nov;6(6):e79. PMID: 24254489 MH - Adult MH - Aged MH - Bayes Theorem MH - Cardiomyopathy, Dilated/*diagnosis/pathology/physiopathology MH - Chi-Square Distribution MH - *Contrast Media MH - Female MH - Fibrosis MH - *Gadolinium DTPA MH - Humans MH - Logistic Models MH - *Magnetic Resonance Imaging, Cine MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Myocardium/*pathology MH - Odds Ratio MH - Predictive Value of Tests MH - Prognosis MH - Risk Factors MH - Stroke Volume MH - Time Factors MH - Ventricular Dysfunction, Left/*diagnosis/pathology/physiopathology MH - Ventricular Function, Left MH - Ventricular Function, Right MH - *Ventricular Remodeling OTO - NOTNLM OT - cardiomyopathy, dilated OT - myocardial fibrosis OT - ventricular remodeling EDAT- 2013/08/13 06:00 MHDA- 2013/11/15 06:00 CRDT- 2013/08/13 06:00 PHST- 2013/08/13 06:00 [entrez] PHST- 2013/08/13 06:00 [pubmed] PHST- 2013/11/15 06:00 [medline] AID - CIRCIMAGING.113.000438 [pii] AID - 10.1161/CIRCIMAGING.113.000438 [doi] PST - ppublish SO - Circ Cardiovasc Imaging. 2013 Sep;6(5):790-9. doi: 10.1161/CIRCIMAGING.113.000438. Epub 2013 Aug 9.