Document Detail

The influence of tumor size on the electrocardiographic changes in patients with left atrial myxoma.
MedLine Citation:
PMID:  11786947     Owner:  NLM     Status:  MEDLINE    
The authors assessed the usefulness of the electrocardiography in patients with left atrial myxoma. The authors retrospectively reviewed the records of 15 patients with left atrial myxoma before and after tumor excision. The 12-lead electrocardiogram presented the P-wave abnormality shown by a broad P wave in lead II (PDII) and/or a deep and broad negative P terminal force in lead V1 (PTFV1). These abnormal findings were shown in the 13 patients whose tumor weight was 16 g or more. However, the other 2 patients whose tumor weight were 7 g or less did not have a prolonged PDII or an increased PTFV1. Both PDII and PTFV1 were correlated not only with the tumor size but also with the left atrial dimension and/or the left atrial pressure. These P-wave abnormalities were markedly improved or disappeared, and the left atrial dimension and pressure decreased immediately after tumor excision. The increasing size of the tumor brings about the P-wave abnormalities, which may result from enlargement of the left atrial cavity. It is suggested that while not specific the 12-lead ECG findings of PDII and PTFV1 may be useful for detecting a myxoma weighting 16 g or more, but was an insensitive technique for smaller ones.
Norihiro Komiya; Shojiro Isomoto; Motonobu Hayano; Toshiyasu Kugimiya; Katsusuke Yano
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of electrocardiology     Volume:  35     ISSN:  0022-0736     ISO Abbreviation:  J Electrocardiol     Publication Date:  2002 Jan 
Date Detail:
Created Date:  2002-01-11     Completed Date:  2002-04-03     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  53-7     Citation Subset:  IM    
Third Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan.
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MeSH Terms
Heart Atria / pathology*,  surgery
Heart Neoplasms / complications*,  diagnosis*,  surgery
Middle Aged
Myxoma / complications,  diagnosis*,  surgery
Organ Size / physiology
Postoperative Care
Preoperative Care
Pulmonary Wedge Pressure / physiology

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

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