PMID- 17288951 OWN - NLM STAT- MEDLINE DCOM- 20070322 LR - 20151119 IS - 1579-2242 (Electronic) IS - 0300-8932 (Linking) VI - 60 IP - 1 DP - 2007 Jan TI - [Clinical significance of late gadolinium enhancement on cardiovascular magnetic resonance in patients with hypertrophic cardiomyopathy]. PG - 15-23 AB - INTRODUCTION AND OBJECTIVES: In patients with hypertrophic cardiomyopathy, myocardial fibrosis can be detected by late gadolinium enhancement (LGE) on cardiac magnetic resonance imaging. We investigated the relationships between the extent of LGE, left ventricular morphology and function, and clinical characteristics. METHODS: Both cine and gadolinium-enhanced magnetic resonance imaging were performed in 104 patients with hypertrophic cardiomyopathy. RESULTS: Fifty patients (48%) showed LGE (range: 1-11 segments). The extent of LGE was positively correlated with maximum left ventricular wall thickness (r=0.53, P< .001), left ventricular mass (r=0.41, P< .001), and the number of hypokinetic segments (r=0.51, P< .001), and inversely correlated with ejection fraction (r=-0.32, P=.001), the magnitude of the subaortic gradient increase during exercise echocardiography (r=-0.26, P=.023), and age at diagnosis (r=-0.20, P=.04). Four of the five patients with an ischemic response on exercise echocardiography had > or =3 segments showing LGE (P=.003). Severe hypertrophy (i.e., > or =30 mm) and nonsustained ventricular tachycardia occurred more frequently as the number of LGE segments increased (P< .001 and P=.04, respectively). CONCLUSIONS: Extensive LGE reflects greater disease expression. It is associated with more severe myocardial damage (i.e., a lower ejection fraction and a larger number of hypokinetic segments) and with adverse clinical characteristics (e.g., young age at diagnosis, severe hypertrophy, nonsustained ventricular tachycardia, and an ischemic response on exercise), suggesting that it may be closely linked to prognosis. FAU - Dumont, Carlos A AU - Dumont CA AD - Servicio de Cardiologia, Hospital Juan Canalejo, A Coruna, Spain. FAU - Monserrat, Lorenzo AU - Monserrat L FAU - Soler, Rafaela AU - Soler R FAU - Rodriguez, Esther AU - Rodriguez E FAU - Fernandez, Xusto AU - Fernandez X FAU - Peteiro, Jesus AU - Peteiro J FAU - Bouzas, Beatriz AU - Bouzas B FAU - Pinon, Pablo AU - Pinon P FAU - Castro-Beiras, Alfonso AU - Castro-Beiras A LA - spa PT - English Abstract PT - Journal Article TT - Significado clinico del realce tardio de gadolinio con resonancia magnetica en pacientes con miocardiopatia hipertrofica. PL - Spain TA - Rev Esp Cardiol JT - Revista espanola de cardiologia JID - 0404277 RN - 0 (Contrast Media) RN - K2I13DR72L (Gadolinium DTPA) SB - IM CIN - Rev Esp Cardiol. 2007 Jan;60(1):1-4. PMID: 17288947 MH - Adolescent MH - Adult MH - Aged MH - Cardiomyopathy, Hypertrophic/*diagnosis/pathology/physiopathology MH - Chi-Square Distribution MH - Child MH - *Contrast Media MH - Death, Sudden, Cardiac/etiology MH - Echocardiography, Stress/methods MH - Female MH - *Gadolinium DTPA MH - Humans MH - Hypertrophy, Left Ventricular/pathology/physiopathology MH - Magnetic Resonance Imaging, Cine/*methods MH - Male MH - Middle Aged MH - Myocardium/*pathology MH - Prognosis MH - Regression Analysis MH - Risk Factors MH - Stroke Volume/physiology MH - Ventricular Dysfunction, Left/physiopathology EDAT- 2007/02/10 09:00 MHDA- 2007/03/23 09:00 CRDT- 2007/02/10 09:00 PHST- 2007/02/10 09:00 [pubmed] PHST- 2007/03/23 09:00 [medline] PHST- 2007/02/10 09:00 [entrez] AID - 13097921 [pii] PST - ppublish SO - Rev Esp Cardiol. 2007 Jan;60(1):15-23.