Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geology A
seismic surface shock wave, which is also known as aLove wave , with a lateral horizontal movementperpendicular to the direction ofpropagation .
Etymologies
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Examples
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For a heart attack that might have occurred in the past, doctors look for changes on an electrocardiogram called a Q-wave, a marker for damaged tissue.
‘Silent’ Heart Attacks Far More Common Than Suspected | Impact Lab 2009
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ATLANTA -- For patients with unprotected left main coronary artery disease, stenting and bypass grafting resulted in similar mortality, Q-wave myocardial infarction, and stroke in the long term, South Korean researchers found.
MedPageToday.com - medical news plus CME for physicians 2010
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Complications listed per FDA labeling include: ventricular perforation, contrast media reaction, stroke, slow flow, no flow, myocardial infarction Q-wave and non Q-wave, arrhythmia requiring treatment, cardiac tamponade, and death.
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In the overall cohort, the risk of all-cause death (HR 1.02, 95% CI 0.74 to 1.39) and of a composite of all-cause death, Q-wave MI, or stroke (HR 1.10, 95% CI 0.74 to 1.38) were not significantly different between stenting and CABG.
MedPageToday.com - medical news plus CME for physicians 2010
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N.C. SAN FRANCISCO, April 21 -- Q-wave electrocardiography, the traditional method for retrospectively diagnosing chronic cardiac damage from an unrecognized heart attack, missed three-fourths of cases, researchers said.
MedPageToday.com - medical news plus CME for physicians 2009
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Obstructive coronary artery disease on angiography was more common with non-Q-wave unrecognized MI than with Q-wave unrecognized MI, or no MI (96\%, 73\%, and 44\%, respectively).
MedPageToday.com - medical news plus CME for physicians 2009
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To detect heart attacks that happened in the distant past, doctors rely on specific alterations of an electrocardiogram (EKG) called a Q-wave, which signals damage of heart tissue.
Medindia Health News 2009
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By comparison, 27\% had previously undetected myocardial damage seen on delayed-enhancement cardiovascular magnetic resonance (DE-CMR) without Q-wave enhancement.
MedPageToday.com - medical news plus CME for physicians 2009
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Duration: 0. 06-0.11 sec • QRS - Complex - Measures the impulse that causes ventricular depolarization - Duration: 0. 06-0.10sec - Important indicator of ventricular myocardial cell activity • Q-wave - may or may not be evident on the ECG, represents septal depolarization •
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Even if a heart attack occurred in the distant past, it may still leave a signature called a Q-wave on an electrocardiogram.
CNN.com 2009
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