Document Detail

The influence of hemodialysis on P-wave signal-averaged electrocardiogram findings.
MedLine Citation:
PMID:  17651116     Owner:  NLM     Status:  MEDLINE    
The role of P-wave signal-averaged electrocardiography (P-SAECG) in the prediction of atrial fibrillation (AF) attacks has been validated in various disease states. In the present study, we aimed to investigate the effect of hemodialysis (HD) on P-SAECG parameters and to determine the related risk factors that might affect those parameters. Ninety-one HD patients and 68 controls were included. Hemoglobin levels, serum electrolytes, arterial pH, and interdialytic weight changes were assessed. P-wave duration (PWD) and late potentials of P wave (root-mean-square voltage for the last 20 ms of the signal-averaged P wave [LP20]) were determined by P-SAECG. Pre- and postdialysis PWDs were significantly increased in HD patients than in controls (both P < 0.05), while the voltages of pre- and postdialysis LP20 were significantly reduced (both P < 0.05). A significant increase in PWD (P < 0.05) and a significant decrease in LP20 (P < 0.05) were observed following HD. Pre- and postdialysis PWDs and LP20 were correlated with age (all P < 0.05), dialysis duration (all P < 0.05), and left atrial diameters (LADs) (pre- and postdialysis) (all P < 0.05). Intradialytic changes in serum potassium levels were only correlated with postdialysis PWD and LP20 in HD patients (both P < 0.05). HD seems to increase PWD and to reduce LP20. Advanced age, duration of HD, intradialytic change in serum potassium levels, and LAD seem to be the important associates of P-SAECG parameters in HD patients.
Turkay Ozcan; Mehmet Horoz; Gultekin Genctoy; Bulent Uyar; Ahmet Camsari; Ahmet A Kiykim
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Artificial organs     Volume:  31     ISSN:  0160-564X     ISO Abbreviation:  Artif Organs     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-07-26     Completed Date:  2007-10-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7802778     Medline TA:  Artif Organs     Country:  United States    
Other Details:
Languages:  eng     Pagination:  612-6     Citation Subset:  IM    
Department of Cardiology, Mersin University, Mersin, Turkey.
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MeSH Terms
Electrocardiography / methods*
Heart Conduction System / physiopathology*
Kidney Failure, Chronic / physiopathology*,  therapy*
Middle Aged
Renal Dialysis*
Signal Processing, Computer-Assisted*

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