Abstract:
OBJECTIVE:To assess the relation between P-wave and QT dispersions in elderly patients with heart failure. METHODS:Forty-seven elderly patients (75.6+/-6 years) with stable heart failure in NYHA functional classes II or III and with ejection fractions of 37+/-6% underwent body surface mapping to analyze P-wave and QT dispersions. The degree of correlation between P-wave and QT dispersions was assessed, and P-wave dispersion values in patients with QT dispersion greater than and smaller than 100 ms were compared. RESULTS:The mean values of P-wave and QT dispersions were 54+/-14 ms and 68+/-27 ms, respectively. The correlation between the 2 variables was R=0.41 (p=0.04). In patients with QT dispersion values > 100 ms, P-wave dispersion was significantly greater than in those with QT dispersion values < 100 ms (58+/-16 vs 53+/-12 ms, p=0.04 ). CONCLUSION:Our results suggest that, in elderly patients with heart failure, a correlation between the values of P-wave and QT dispersions exists. These findings may have etiopathogenic, pathophysiologic, prognostic, and therapeutic implications, which should be investigated in other studies.
journal_name
Arq Bras Cardioljournal_title
Arquivos brasileiros de cardiologiaauthors
Szlejf C,Rays J,Gebara OC,Vieira NW,Pierri H,Nussbacher A,Serro-Azul JB,Samesima N,Pastore CA,Wajngarten Mdoi
10.1590/s0066-782x2002001400007subject
Has Abstractpub_date
2002-11-01 00:00:00pages
494-9issue
5eissn
0066-782Xissn
1678-4170pii
S0066-782X2002001400007journal_volume
79pub_type
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journal_title:Arquivos brasileiros de cardiologia
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 临床试验,杂志文章
doi:
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 临床试验,杂志文章,多中心研究
doi:
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journal_title:Arquivos brasileiros de cardiologia
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journal_title:Arquivos brasileiros de cardiologia
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journal_title:Arquivos brasileiros de cardiologia
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journal_title:Arquivos brasileiros de cardiologia
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journal_title:Arquivos brasileiros de cardiologia
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journal_title:Arquivos brasileiros de cardiologia
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,多中心研究
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