title: Electrocardiographic diagnosis of left ventricular hypertrophy in aortic valve disease: evaluation of ECG criteria by cardiovascular magnetic resonance.
abstract: BACKGROUND
  Left ventricular hypertrophy (LVH) is a hallmark of chronic pressure or volume overload of the left ventricle and is associated with risk of cardiovascular morbidity and mortality. The purpose was to evaluate different electrocardiographic criteria for LVH as determined by cardiovascular magnetic resonance (CMR). Additionally, the effects of concentric and eccentric LVH on depolarization and repolarization were assessed.
  
  
  METHODS
  120 patients with aortic valve disease and 30 healthy volunteers were analysed. As ECG criteria for LVH, we assessed the Sokolow-Lyon voltage/product, Gubner-Ungerleider voltage, Cornell voltage/product, Perugia-score and Romhilt-Estes score.
  
  
  RESULTS
  All ECG criteria demonstrated a significant correlation with LV mass and chamber size. The highest predictive values were achieved by the Romhilt-Estes score 4 points with a sensitivity of 86% and specificity of 81%. There was no difference in all ECG criteria between concentric and eccentric LVH. However, the intrinsicoid deflection (V6 37 +/- 1.0 ms vs. 43 +/- 1.6 ms, p < 0.05) was shorter in concentric LVH than in eccentric LVH and amplitudes of ST-segment (V5 -0.06 +/- 0.01 vs. -0.02 +/- 0.01) and T-wave (V5 -0.03 +/- 0.04 vs. 0.18 +/- 0.05) in the anterolateral leads (p < 0.05) were deeper.
  
  
  CONCLUSIONS
  By calibration with CMR, a wide range of predictive values was found for the various ECG criteria for LVH with the most favourable results for the Romhilt-Estes score. As electrocardiographic correlate for concentric LVH as compared with eccentric LVH, a shorter intrinsicoid deflection and a significant ST-segment and T-wave depression in the anterolateral leads was noted.
authors.affiliation: Klinik und Poliklinik für Innere Medizin II, Universitätsklinikum Regensburg, Germany. stefan.buchner@klinik.uni-regensburg.de
authors.forename: Stefan
authors.initials: S
authors.lastname: Buchner
authors.forename: Kurt
authors.initials: K
authors.lastname: Debl
authors.forename: Josef
authors.initials: J
authors.lastname: Haimerl
authors.forename: Behrus
authors.initials: B
authors.lastname: Djavidani
authors.forename: Florian
authors.initials: F
authors.lastname: Poschenrieder
authors.forename: Stefan
authors.initials: S
authors.lastname: Feuerbach
authors.forename: Guenter A J
authors.initials: GA
authors.lastname: Riegger
authors.forename: Andreas
authors.initials: A
authors.lastname: Luchner
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001021:Aortic Valve; D016022:Case-Control Studies; D004562:Electrocardiography; D005260:Female; D006349:Heart Valve Diseases / Q000150:complications* / Q000473:pathology / Q000503:physiopathology; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D016014:Linear Models; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D011237:Predictive Value of Tests; D012372:ROC Curve; D012680:Sensitivity and Specificity