Document Detail

Usefulness of QRST isointegral maps for the diagnosis of right ventricular pressure overload in patients with surgically repaired tetralogy of Fallot complicated by right bundle block.
MedLine Citation:
PMID:  8728596     Owner:  NLM     Status:  MEDLINE    
Right ventricular pressure overload was evaluated in 29 patients, 8-12 years old, with surgically repaired tetralogy of Fallot by using body surface QRST isointegral maps. In patients with right ventricular systolic pressure above 50 mmHg, the maxima of the isointegral maps tended to shift toward the lower right-hand region of the map. The maximum value was significantly correlated with right ventricular systolic pressure (r = .58; P < .01). There was a correlation between the right ventricular systolic pressure and the percentage +2SD and percentage +5SD departure areas, which are defined as the area (expressed as a percentage of the total chest area) in which the QRST integral values are greater than the normal mean +2SD or +5SD, respectively (r = .61 and .84, P < .01). The QRST isointegral map can be used to evaluate right ventricular pressure overload in postoperative patients with tetralogy of Fallot complicated by right bundle branch block. The percentage +5SD departure area is the most valuable parameter for the quantitative evaluation of the right ventricular systolic pressure.
Y Hayabuchi; S Matsuoka; M Kubo; K Mori; K Tatara; Y Kuroda
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of electrocardiology     Volume:  29     ISSN:  0022-0736     ISO Abbreviation:  J Electrocardiol     Publication Date:  1996 Apr 
Date Detail:
Created Date:  1996-10-24     Completed Date:  1996-10-24     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  111-7     Citation Subset:  IM    
Department of Pediatrics, Tokushima University School of Medicine, Japan.
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MeSH Terms
Body Surface Potential Mapping*
Bundle-Branch Block / etiology*
Case-Control Studies
Postoperative Complications / diagnosis*
Signal Processing, Computer-Assisted*
Tetralogy of Fallot / complications,  surgery*
Ventricular Dysfunction, Right / diagnosis*,  etiology
Ventricular Pressure

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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