Document Detail

QRST isointegral map reflects the sudden reduction of right ventricular pressure after balloon pulmonary valvuloplasty.
MedLine Citation:
PMID:  7595124     Owner:  NLM     Status:  MEDLINE    
To elucidate the mechanism of electrocardiographic changes due to right ventricular pressure overload, serial changes on body surface maps recorded in two children with valvular pulmonary stenosis before and after successful reduction of right ventricular pressure by balloon valvuloplasty (BVP) were studied. Body surface maps and 12-lead electrocardiograms were simultaneously recorded before and 1-1.5 hours, 8 hours, and 5 days after BVP. Before BVP, QRST isointegral maps showed either two maxima or an expanded single maximum on the right anterior chest. These abnormal characteristics become normal or near normal 1-1.5 hours after BVP. Electrocardiographic waveforms and QRS and ST-T isointegral maps showed minimal changes. Changes in QRST isointegral maps were observed near the center of the midanterior chest. These results suggest that increased right ventricular pressure caused a primary repolarization abnormality in the mid-anterior chest that was easily detected by body surface QRST isointegral maps.
N Izumida; Y Asano; K Kiyohara; S Doi; Y Hatai; S Tsuchiya; J Hosaki; S Kawano; T Sawanobori; M Hiraoka
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Journal of electrocardiology     Volume:  28     ISSN:  0022-0736     ISO Abbreviation:  J Electrocardiol     Publication Date:  1995 Jul 
Date Detail:
Created Date:  1995-11-28     Completed Date:  1995-11-28     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  223-9     Citation Subset:  IM    
Department of Pediatrics, School of Medicine, Tokyo Medical and Dental University, Japan.
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MeSH Terms
Balloon Dilatation / adverse effects*
Body Surface Potential Mapping*
Child, Preschool
Postoperative Complications*
Pulmonary Valve Stenosis / complications,  surgery*
Ventricular Dysfunction, Right / etiology,  physiopathology*

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