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ISSN 2520-9078 (Electronic)

2012, Number 2

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Revista de Ciencias Médicas de la Habana 2012; 18 (2)

Corrected QT interval in relation to complications and mortality of acute coronary syndrome

Sera BRA, García DM, Hernández NR, Viamonte SM

Language: Spanish
References: 18
Page:
PDF size: 138.27 Kb.


ABSTRACT

It was performed a descriptive, transversal study, with 102 patients with acute coronary syndrome (ACS), assisted in the emergency room of the “Leopoldito Martínez” Teaching Hospital in San José de las Lajas, Mayabeque Province, since january 2007 until december 2008. It was measured the QT interval in the first electrocardiogram, it was calculated QT corrected interval through the Bazett´s formula and it was related with the following variables: age, sex, type of ACS, frequency of complications and overall mortality. There was a predominance of patients with acute myocardial infarction (AMI) with Q wave older than 60 years and male sex. Maximum QTc interval was more elongated in women with Q wave AMI and the average QTc lasted more in women with non-Q wave AMI. ACS Patients without complications were more frequents. It was prevalent the Q wave AMI in complicated patients. Maximum and average QTc intervals lasted more in patients with Q wave AMI without complications. ACS patients who did not decease were more frequent. Mortality was higher in Q wave AMI patients. The maximum QTc interval lasted more in Q wave AMI patients who survived. The average QTc value was more elongated in non-Q wave AMI patients who did not decease. Based on the average comparison test, there was not statistically significant differences (p › 0.05; IC: 95 %) between the average values of the QTc interval related to the type of ACS, sex, complications and mortality.


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