The following variables were assessed as predictors for the composite endpoint: i) Q-wave
, ii) LVEF<50%, iii) VT, iv) 24-h SDNN<100 ms, v) DUR>150 ms, and vi) IVET + .
Clinical follow-up at one year demonstrated no cardiac related deaths, Q-wave
MI, or stent thrombosis for any of the stent groups.
5 mg/dl, n (%) Data are presented as mean [+ or -] SD and numbers (percentages) * unpaired t test and Chi-square test LVEF--left ventricular ejection fraction, LVVs--left ventricular end-systolic volume, NT-pro BNP N--terminal pro-B-type natriuretic peptide, sPAP--Systolic pulmonary arterial pressure Q-left time, the time from the onset of the Q-wave
on the surface ECG to the onset of the regional systolic motion of left ventricle (evaluated by TDI).
q]-diffution, the q-wave
and the [[partial derivative.
But if a heart attack happened in the distant past, physicians rely on the appearance of a specific alteration on an ECG called a Q-wave
, which signals the presence of damaged tissue.
The new technique was able to detect silent heart attacks not picked up by electrocardiogram because they didn't generate the Q-wave
patterns measured by ECGs.
younger than 65 years), gender, Q-wave
MI status, heart failure class, revascularization, or nationality (United States vs.
When MI was defined biologically, the difference between post-PCI non-Q-wave
MI and post-PCI Q-wave
MI was defined as the occurrence of a new Q-wave
on post-PCI electrocardiograms.
Patients with pathological Q-wave
or history of Ml, typical bundle brunch blocks (BBB) and incomplete right BBB were excluded from study.
The primary endpoint in the BEACH trial was one-year morbidity and mortality defined as the cumulative incidence of non Q-wave
myocardial infarction within 24 hours of the index procedure, peri-procedural (less than or equal to 30 days) death, stroke and Q-wave
myocardial infarction and late ipsilateral stroke and neurological death from 31 days through 12-month follow-up.
The rate of Q-wave
myocardial infarction (heart attacks that involve the full thickness of the heart wall) was 0.
The composite end point included non-Q-wave
myocardial infarctions that occurred within 24 hours of the procedure, all deaths, strokes, and Q-wave
MIs through 30 days following treatment, and all ipsilateral strokes and neurologic deaths that occurred from 31 days to 1 year after treatment.