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Heart Asia. 2010 Jul 29;2(1):52-5. doi: 10.1136/ha.2010.002006. eCollection 2010.

Diagnostic utility of cardiac magnetic resonance for detection of cardiac involvement in female carriers of Duchenne muscular dystrophy.

Heart Asia

Takashi Iwase, Shoichiro Takao, Masashi Akaike, Katsuhito Adachi, Yuka Sumitomo-Ueda, Shusuke Yagi, Toshiyuki Niki, Kenya Kusunose, Noriko Tomita, Yoichiro Hirata, Koji Yamaguchi, Kunihiko Koshiba, Yoshio Taketani, Hirotsugu Yamada, Takeshi Soeki, Tetsuzo Wakatsuki, Ken-Ichi Aihara, Masafumi Harada, Hiromu Nishitani, Masataka Sata

Affiliations

  1. Department of Cardiovascular Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
  2. Department of Medical Imaging, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
  3. Department of Internal Medicine and Neurology, Tokushima National Hospital, Tokushima, Japan.
  4. Department of Medicine and Bioregulatory Sciences, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
  5. Department of Radiology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.

PMID: 27325943 PMCID: PMC4898527 DOI: 10.1136/ha.2010.002006

Abstract

BACKGROUND: Cardiac involvement is a recognised complication in female carriers of Duchenne muscular dystrophy (DMD). Since segmental or global left ventricle (LV) wall motion abnormalities in DMD carriers can arise even without apparent muscle weakness, it is difficult to differentiate cardiac involvement of a DMD carrier from other heart diseases in a non-invasive manner. Cardiac magnetic resonance (CMR) with late gadolinium enhancement (LGE) enables assessment of regional wall motion abnormality and myocardial damage with high spatial resolution.

OBJECTIVE: To assess the utility of CMR for detection of myocardial damage in female carriers of DMD.

METHODS AND RESULTS: Gadolinium-enhanced CMR was performed in seven female DMD carriers. Physical examination, electrocardiography, chest radiograph, measurements of total creatinine kinase and brain natriuretic peptide levels, and two-dimensional echocardiography were also performed. Four (57%) of the seven carriers had LGE, and LGE was frequently observed at the subepicardial layer in the inferolateral segment. Two carriers had a focal LGE at the LV inferolateral wall without LV dilation or wall motion abnormalities.

CONCLUSION: CMR findings of DMD carriers were characterised by subepicardial LGE, which was localised at inferolateral segments. CMR may be a useful modality for detecting cardiac involvement in DMD carriers.

Keywords: MRI; cardiomyopathies; gadolinium; muscular dystrophies

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