Pediatric Cardiology

, Volume 34, Issue 6, pp 1335–1343 | Cite as

Echocardiographic Predictors of Early Postsurgical Myocardial Dysfunction in Pediatric Patients With Aortic Valve Insufficiency

  • Alexander Lowenthal
  • Theresa A. Tacy
  • Fariborz Behzadian
  • Rajesh PunnEmail author
Original Article


In chronic aortic insufficiency (AI), left-ventricular (LV) dysfunction must be detected early to allow timely surgery. Strain and strain rate have been used for this purpose in adults, but the value of this method in pediatric AI has not been established. Forty patients with moderate to severe AI were included in this retrospective study. LV function was assessed by strain analysis and conventional echocardiography both before and after surgery. Of the 32 patients with preserved preoperative ejection fraction (EF; >50 %), 8 had postoperative dysfunction (<50 %). Mean conventional indices of global LV systolic performance for the entire cohort of patients with AI were predominantly in the normal range before surgery. Preoperative values for LV global longitudinal strain (GLS) and strain rate (GLSr) were normal. After surgery, there was a significant decrease in shortening and EF. There was a significant decrease from preoperative to postoperative values for both GLS (–16.07 ± 3.82 vs. –11.06 ± 3.88; p < 0.0001) and GLSr (–0.89 ± 0.24 vs. –0.72 ± 0.27; p = 0.0021). A preoperative GLS of –15.3  (AUC = 0.83, CI = 0.69–0.98, p < 0.0001) and a GLSr of –0.79/s (AUC = 0.86, CI = 0.73–0.98, p < 0.0001) were determined to be predictors of early postoperative dysfunction after surgical repair of moderate to severe AI. A preoperative GLS value of ≤–15.3  and GLSr value of –0.79/s or less are predictors of postoperative ventricular dysfunction, which is defined by EF <50 %. GLS and GLSr value determination may be useful as part of the echocardiographic assessment AI and may help determine the optimal timing of surgery in pediatric patient with at least moderate AI.


Aortic regurgitation Echocardiography Strain Surgery 


Conflict of interest



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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Alexander Lowenthal
    • 1
  • Theresa A. Tacy
    • 1
  • Fariborz Behzadian
    • 1
  • Rajesh Punn
    • 1
    Email author
  1. 1.Echocardiography Laboratory, Division of Pediatric Cardiology, Department of Pediatrics, Lucile Packard Children’s HospitalStanford UniversityPalo AltoUSA

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