The prognostic significance of first myocardial infarction type (Q wave versus non-Q wave) and Q wave location
نویسندگان
چکیده
منابع مشابه
Perpetuation of the myth of the Q-wave versus the non-Q-wave myocardial infarction.
We would like to thank Karamanoukian, Donias and Bergsland for their remarks regarding our randomized trial of percutaneous coronary intervention (PCI) versus coronary artery bypass graft (CABG) in patients with medically refractory myocardial ischemia and risk factors for early mortality with CABG. They raise two specific issues about our surgeons’ CABG methods: 1) variability in myocardial pr...
متن کاملQ-wave versus non-Q wave myocardial infarction: a meaningless distinction.
The whole subject can thus be summed up in two statements. 1. Every appropriately designed study comparing first Q and NQMI's has found no difference in post-MI course of the two categories and no foundation for the common notion that the NQMI is a uniquely "unstable" entity, to be classed with unstable angina in terms of prognosis and management. Nine such studies have been published. On the o...
متن کاملNon-Q wave myocardial infarction. Pathophysiology and prognostic implications.
Non-Q wave myocardial infarctions, also known as nontransmural myocardial infarctions or subendocardial myocardial infarctions, have been managed as "mild" coronary events in the past. Substantial evidence now requires modification of this approach. Because of their tendency to be associated with modest cardiac enzyme level elevations, non-Q wave infarcts often result in a favorable early or in...
متن کاملNon-Q wave myocardial infarction management strategies.
In this issue, Heggunje and colleagues dissect out from the VANQWISH Trial patients with non-Q wave myocardial infarction who had a prior myocardial infarction and compare outcomes to those who did not have a prior myocardial infarction. They evaluated the trial primary end-point of death or myocardial infarction at 1 and 12 months as well as the initial randomized treatment strategy. The botto...
متن کاملSignificance of the diagnostic Q wave of myocardial infarction.
SUMMARY Correlation between the QRS complex and postmortem ventricular anatomy was made in 1184 instances of normal conduction: (1) Mechanical reliance on the sheer presence or absence of a Q wave greater than 0.03 sec in duration led to "correct" diagnosis of infarction or not in 79% of the series. (2) With normal conduction, abnormal Q waves isolated to either the anteroseptal (Vl-V4) or infe...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1990
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(10)80001-4