Prevalence of left ventricular regional dysfunction in arrhythmogenic right ventricular dysplasia: A tagged MRI study

Aditya Jain, Monda L. Shehata, Matthias Stuber, Seth J. Berkowitz, Hugh Calkins, João A.C. Lima, David A. Bluemke, Harikrishna Tandri

Research output: Contribution to journalArticle

Abstract

Background-Although arrhythmogenic right ventricular dysplasia (ARVD) predominantly affects the right ventricle (RV), genetic/molecular and histological changes are biventricular. Regional left ventricular (LV) function has not been systematically studied in ARVD. Methods and Results-The study population included 21 patients with suspected ARVD who underwent evaluation with MRI including tagging. Eleven healthy volunteers served as control subjects. Peak systolic regional circumferential strain (Ecc, %) was calculated by harmonic phase from tagged MRI based on the 16-segment model. Patients who met ARVD Task Force criteria were classified as definite ARVD, whereas patients with a positive family history who had 1 additional minor criterion and patients without a family history with 1 major or 2 minor criteria were classified as probable ARVD. Of the 21 ARVD subjects, 11 had definite ARVD and 10 had probable ARVD. Compared with control subjects, probable ARVD patients had similar RV ejection fraction (58.9±6.2% versus 53.5±7.6%, P=0.20), but definite ARVD patients had significantly reduced RV ejection fraction (58.9±6.2% versus 45.2±6.0%, P=0.001). LV ejection fraction was similar in all 3 groups. Compared with control subjects, peak systolic Ecc was significantly less negative in 6 of 16 (37.5%) segments in definite ARVD and 3 of 16 segments (18.7%) in probable ARVD (all P<0.05). Conclusions-ARVD is associated with regional LV dysfunction, which appears to parallel degree of RV dysfunction. Further large studies are needed to validate this finding and to better define implications of subclinical segmental LV dysfunction.

Original languageEnglish (US)
Pages (from-to)290-297
Number of pages8
JournalCirculation: Cardiovascular Imaging
Volume3
Issue number3
DOIs
StatePublished - May 2010

Keywords

  • ARVD
  • LV involvement
  • MRI tagging
  • Regional strain

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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