Dispersion of QT interval in patients with acute ischemic heart disease

Authors

  • Rosa E. Díaz Garriga Instituto de Cardiología y Cirugía Cardiovascular. Ciudad de La Habana, Cuba.
  • Roberto Zayas Molina
  • Margarita Dorantes Sánchez

Keywords:

MYOCARDIAL ISCHEMIA, ANGINA PECTORIS, BARIANTE, MYOCARDIAL INFARCTION, ELECTROCARDIOGRA-PHY, THROMBOLYTIC THERAPY.

Abstract

QT dispersion was evaluated among 31 patients: 10 carriers of unstable angina, 21 with acute myocardial infarction and a control group of sound individuals. All of them underwent electrocardiogram at 25 and 55 mm/s, with amplitudes of 1 and 2 mV on their arrival to the Emergency Department, and postthrombolysis (cases with infarction) at the 24 hours, 72 hours and 7 days. Those cases with angina had normal mean values. As regards infarction, the figures were signiificantly high in relation to the control group and to that with angina. There was a marked reduction of postthrombolysis figures in survivors and they were high in those who died. It is concluded that the mean figures of QT dispersion are normal in patients with angina and significantly higher among those with AMI. Thrombolysis reduces QT dispersion, excepting in the dead, where it is over 80 m/s.

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Author Biography

Rosa E. Díaz Garriga, Instituto de Cardiología y Cirugía Cardiovascular. Ciudad de La Habana, Cuba.

Especialista de II Grado en Cardiología. Investigador Auxiliar.

Published

2014-03-19

How to Cite

1.
Díaz Garriga RE, Zayas Molina R, Dorantes Sánchez M. Dispersion of QT interval in patients with acute ischemic heart disease. Rev. cuba. cardiol. cir. cardiovasc. [Internet]. 2014 Mar. 19 [cited 2025 Feb. 11];14(1). Available from: https://revcardiologia.sld.cu/index.php/revcardiologia/article/view/466

Issue

Section

Review Article

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