Journal of the American College of Cardiology
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J. Am. Coll. Cardiol. · Jul 1997
The electrocardiogram predicts one-year outcome of patients with unstable angina and non-Q wave myocardial infarction: results of the TIMI III Registry ECG Ancillary Study. Thrombolysis in Myocardial Ischemia.
We sought to determine the prognostic value of the admission electrocardiogram (ECG) in patients with unstable angina and non-Q wave myocardial infarction (MI). ⋯ The admission ECG is very useful in risk stratifying patients with non-Q wave MI. The new criteria of not only > or = 1-mm ST segment deviation but also > or = 0.5-mm ST segment deviation or LBBB identify high risk patients, whereas T wave inversion does not add to the clinical history in predicting outcome.
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J. Am. Coll. Cardiol. · Jul 1997
Atypical atrioventricular node reciprocating tachycardia masquerading as tachycardia using a left-sided accessory pathway.
The study was performed to document that atrioventricular node reciprocating tachycardia (AVNRT) can be associated with eccentric retrograde left-sided activation, masquerading as tachycardia using a left accessory pathway. ⋯ Atypical AVNRT with eccentric retrograde left-sided activation was demonstrated in 6% of all patients with AVNRT masquerading as tachycardia using a left-sided accessory pathway. Ablation of the slow pathway at the posterior aspects of the right atrial septum resulted in a cure in these patients.
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J. Am. Coll. Cardiol. · Jul 1997
Multicenter Study Comparative StudyOutcome and profile of women and men presenting with acute coronary syndromes: a report from TIMI IIIB. TIMI Investigators. Thrombolysis in Myocardial Infarction.
Women and men enrolled in the Thrombolysis in Myocardial Infarction (TIMI) IIIB trial of unstable angina and non-Q wave myocardial infarction (MI) were evaluated to determine gender differences in characteristics and outcome. ⋯ 1) Women with each acute coronary syndrome are older than men and have more comorbidity. 2) The outcome with unstable angina and non-Q wave MI is related to severity of illness and not gender. 3) Mortality associated with revascularization for unstable angina and non-Q wave MI was similar for women and men. 4) The proportion of women and men enrolled with each acute coronary syndrome is different. These rates reflect both the prevalence of disease and selection bias owing to trial eligibility criteria and other identified factors.
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J. Am. Coll. Cardiol. · Jul 1997
Flow-function relation in patients with chronic coronary artery disease and reduced regional function. A positron emission tomographic and two-dimensional echocardiographic study with coronary vasodilator stress.
We sought to elucidate the flow-function relation in chronic postischemic dysfunction during vasodilator stress. ⋯ Myocardial segments with rest dysfunction and a contractile reserve elicitable by a vasodilator stress more often exhibit residual flow reserve, whereas segments with a fixed or worsening mechanical response during stress show a flat flow response.