Speckle tracking echocardiography in acute myocarditis

Ju Feng Hsiao, Yuki Koshino, Crystal R. Bonnichsen, Yang Yu, Fletcher A. Miller, Patricia A. Pellikka, Leslie T. Cooper, Hector R. Villarraga

Research output: Contribution to journalArticle

47 Scopus citations

Abstract

To evaluate 2-dimensional speckle tracking echocardiography as a diagnostic and prognostic tool in patients with acute myocarditis. In this retrospective cohort study, 45 patients (age, 39 ± 15 years; 32 male) with suspected acute myocarditis and 83 healthy controls (age, 39 ± 13 years; 27 male) underwent 2-dimensional speckle tracking echocardiography. Main outcome measures were circumferential and longitudinal strain and strain rate as prognostic and diagnostic markers. Patients with myocarditis had lower circumferential strain (-13.3 ± 5.6 % vs. -22.3 ± 4 %), circumferential strain rate (-0.9 ± 0.3 vs. -1.4 ± 0.3 s-1), longitudinal strain (-11.7 ± 4 % vs. -17.7 ± 1.9 %), and longitudinal strain rate (-0.7 ± 0.2 vs. -1.0 ± 0.1 s-1) (all P <.001). For diagnostic purposes, longitudinal strain had the greatest area under the curve, 0.93 (optimal cutoff value, -15.1 %; sensitivity, 78 %; specificity, 93 %). Future events were defined as cardiac death, heart transplant, placement of left ventricular assist device or implantable cardioverter-defibrillator, pulmonary edema-related respiratory failure, cardiogenic shock, and rehospitalization due to cardiac events. For every 1 % decline in longitudinal or circumferential strain, the hazard ratios (95 % CIs) were 1.26 (1.10-1.47) and 1.34 (1.14-1.63), respectively; for every 0.1 s-1 decline in longitudinal or circumferential strain rate, the hazard ratios (95 % CIs) were 1.43 (1.09-1.89) and 1.52 (1.19-2.01), respectively (P <.01). Kaplan-Meier curve and log-rank test showed event-free survival significantly related to these 4 measurements. In acute myocarditis, left ventricular strain and strain rate may be promising diagnostic and prognostic tools, even in patients with preserved left ventricular ejection fraction. Most importantly, this imaging technique had a role in predicting deterioration and overall event-free survival.

Original languageEnglish (US)
Pages (from-to)275-284
Number of pages10
JournalInternational Journal of Cardiovascular Imaging
Volume29
Issue number2
DOIs
StatePublished - Feb 1 2013

Keywords

  • 2-D speckle tracking echocardiography
  • Acute myocarditis
  • Diagnosis and prognosis
  • Mechanical function
  • Myocarditis
  • Strain and strain rate

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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