PMID- 27660108 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240117 IS - 1532-429X (Electronic) IS - 1097-6647 (Print) IS - 1097-6647 (Linking) VI - 18 IP - 1 DP - 2016 Sep 22 TI - Myocardial late gadolinium enhancement is associated with clinical presentation in Duchenne muscular dystrophy carriers. PG - 61 LID - 61 AB - BACKGROUND: Duchenne muscular dystrophy (DMD) is an X-linked recessive disease that occurs in males leading to immobility and death in early adulthood. Female carriers of DMD are generally asymptomatic, yet frequently develop dilated cardiomyopathy. This study aims to detect early cardiac manifestation in DMD using cardiovascular magnetic resonance (CMR) and to evaluate its association with clinical symptoms. METHODS: Clinical assessment of DMD carriers included six minutes walk tests (6MWT), blood analysis, electrocardiography, echocardiography, and CMR using FLASH sequences to detect late gadolinium enhancement (LGE). T1-mapping using the Modified Look-Locker Inversion recovery (MOLLI) sequence was performed quantify extracellular volume (ECV). RESULTS: Of 20 carriers (age 39.47 +/- 12.96 years) 17 (89.5 %) were clinically asymptomatic. ECV was mildly elevated (29.79 +/- 2.92 %) and LGE was detected in nine cases (45 %). LGE positive carriers had lower left ventricular ejection fraction in CMR (64.36 +/- 5.78 vs. 56.67 +/- 6.89 %, p = 0.014), higher bothCK (629.89 +/- 317.48 vs. 256.18 +/- 109.10 U/l, p = 0.002) and CK-MB (22.13 +/- 5.25 vs. 12.11 +/- 2.21 U/l, p = 0.001), as well as shorter walking distances during the 6MWT (432.44 +/- 96.72 vs. 514.91 +/- 66.80 m, p = 0.037). 90.9 % of subjects without LGE had normal pro-BNP, whereas in 66.7 % of those presenting LGE pro-BNP was elevated (p = 0.027). All individuals without LGE were in the NYHA class I, whereas all those in NYHA classes II and III showed positive for LGE (p = 0.066). CONCLUSIONS: Myocardial involvement shown as LGE in CMR occurs in a substantial number of DMD carriers; it is associated with clinical and morphometric signs of incipient heart failure. LGE is thus a sensitive parameter for the early diagnosis of cardiomyopathy in DMD carriers. TRIAL REGISTRATION: Clinicaltrials.gov, NCT01712152 Trial registration: October 19, 2012. First patient enrolled: September 27, 2012 (retrospectively registered). FAU - Wexberg, Paul AU - Wexberg P AD - 2nd Medical Department, Krankenanstalt Rudolfstiftung, Vienna, Austria. paul.wexberg@svagw.at. AD - SVA-Gesundheitszentrum, Hartmanngasse 2b, Vienna, A-1051, Austria. paul.wexberg@svagw.at. FAU - Avanzini, Marion AU - Avanzini M AD - 2nd Medical Department, Krankenanstalt Rudolfstiftung, Vienna, Austria. FAU - Mascherbauer, Julia AU - Mascherbauer J AD - Division of Cardiology, Department Of Internal Medicine II, Medical University of Vienna, Vienna, Austria. FAU - Pfaffenberger, Stefan AU - Pfaffenberger S AD - Division of Cardiology, Department Of Internal Medicine II, Medical University of Vienna, Vienna, Austria. FAU - Freudenthaler, Birgit AU - Freudenthaler B AD - 2nd Medical Department, Krankenanstalt Rudolfstiftung, Vienna, Austria. FAU - Bittner, Reginald AU - Bittner R AD - Neuromuscular Research Department, Center of Anatomy & Cell Biology, Medical University of Vienna, Vienna, Austria. FAU - Bernert, Gunther AU - Bernert G AD - Gottfried von Preyer Children Hospital, Vienna, Austria. FAU - Weidinger, Franz AU - Weidinger F AD - 2nd Medical Department, Krankenanstalt Rudolfstiftung, Vienna, Austria. LA - eng SI - ClinicalTrials.gov/NCT01712152 PT - Journal Article DEP - 20160922 PL - England TA - J Cardiovasc Magn Reson JT - Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance JID - 9815616 PMC - PMC5034448 OTO - NOTNLM OT - Cardiomyopathy OT - Cardiovascular magnetic resonance OT - Duchenne muscular dystrophy OT - T1-mapping EDAT- 2016/09/24 06:00 MHDA- 2016/09/24 06:01 PMCR- 2016/09/22 CRDT- 2016/09/24 06:00 PHST- 2016/04/29 00:00 [received] PHST- 2016/09/05 00:00 [accepted] PHST- 2016/09/24 06:00 [entrez] PHST- 2016/09/24 06:00 [pubmed] PHST- 2016/09/24 06:01 [medline] PHST- 2016/09/22 00:00 [pmc-release] AID - S1097-6647(23)01002-5 [pii] AID - 281 [pii] AID - 10.1186/s12968-016-0281-y [doi] PST - epublish SO - J Cardiovasc Magn Reson. 2016 Sep 22;18(1):61. doi: 10.1186/s12968-016-0281-y.