Exercise-induced ST-segment variability may discriminate false positive...

Journal of Electrocardiology;  July 1, 1998 ;     700+ words ......variations in ST-segment depression and R wave amplitude in consecutive sinus beats was studied...depression despite variations in R wave amplitude were observed in 84 of the 100 patients...The coefficient of variation of R wave amplitude was similar in both groups (no statistical...

Which is the culprit artery?(Electrocardiographic Report)

Baylor University Medical Center Proceedings;  July 1, 2000 ;     476 words ......transmural injury. Either right or left circumflex coronary artery occlusion can produce...because these changes are typical of left circumflex occlusion, that seems the likely culprit...Orleans show complete occlusion of the left circumflex distal to 2 obtuse marginal branches...

Interaction of Mesoscale Variability with Large-Scale Waves in the...

Journal of Physical Oceanography;  March 1, 2007 ;     700+ words ......days. Within this period band, the wave amplitude is coherent with the energy level of...mesoscale energy level goes down, the wave amplitude goes up, and vice versa, suggesting...altimeter data record, the magnitude of the wave amplitude is highly variable with a time scale...

Unimodality of Wave Amplitude in the Northern Hemisphere

Journal of the Atmospheric Sciences;  March 1, 2008 ;     700+ words ...ABSTRACT A novel statistic for local wave amplitude of the 500-hPa geopotential height field...multimodality or bimodality. The zonally averaged wave amplitude, akin to the more usual wave amplitude index, is close to being normally distributed...

R wave amplitude change with ischemia

Journal of Electrocardiology;  September 1, 2008 ;     593 words ...Alteration of R-wave amplitude in ischemia has been a focus of...after occlusion one measures R-wave amplitude and how long one records, but...Froelicher V, Sullivan M. Spatial R wave amplitude changes during exercise: relation...

Superdominant right coronary artery giving rise to left circumflex...

Southern Medical Journal;  February 1, 2007 ;     642 words ......anterior descending (LAD) artery, but the left circumflex artery (LCA) could not be visualized...if there were any unusually located left circumflex arteries, but it verified the absence...the origin of LCA. (2,3) Absence of left circumflex is a very rare anomaly, being reported...

Rate-dependent QRS Prolongation During Exercise Testing Associated With...

Journal of Electrocardiology;  July 1, 2004 ;     700+ words ......significant stenosis in the distal portion of left circumflex coronary artery. The increase of QRS...75% stenosis in the distal portion of left circumflex coronary artery. The left circumflex coronary artery was not dominant in...

R-wave amplitude changes measured by electrocardiography during early...

Journal of Electrocardiology;  September 1, 2008 ;     700+ words ......right coronary arteries, 14 left circumflex arteries, and 20 left anterior descending arteries. R wave amplitude was digitally measured in...balloon inflation. Results: R wave amplitude significantly increased...recordings. Conclusion: R wave amplitude increases ...

CAR-6. Coronary ectasia: a rare manifestation of atherosclerosis with...

Southern Medical Journal;  October 1, 2004 ;     346 words ......cardiac catheterization, which showed diffuse ectasia of his left circumflex artery (10 mm in diameter) and left anterior descending artery (6 mm in diameter). His left circumflex artery showed intracoronary swirling effect of the contrast...

Acute myocardial infarction at 25 years of age.(Angiographic...

Baylor University Medical Center Proceedings;  July 1, 2004 ;     700+ words ......descending artery, and a totally occluded left circumflex coronary artery. The right coronary...narrowing >90% in diameter. The distal left circumflex artery was filled by collaterals from...obstructed obtuse marginal branch of the left circumflex coronary artery was opened and ...

Percutaneous intervention of left main coronary artery disease: a fresh...

Southern Medical Journal;  November 1, 2005 ;     700+ words ......subtotal occlusion of the proximal left circumflex artery and an estimated 70% stenosis...flow through the right coronary and left circumflex arteries. Stenting of the left main...noted that flow was restored to the left circumflex coronary artery without intervening...

Transmural myocardial ischemia during coronary occlusion.

American Family Physician;  July 1, 1989 ;     397 words ......descending coronary arteries, in 19 left circumflex coronary arteries and in 12 right...the surface electrocardiogram during left circumflex coronary artery occlusion (six of...depression, acute occlusion of the left circumflex coronary artery should be considered...

ST-segment changes: some subtle, some obvious.(Electrocardiographic...

Baylor University Medical Center Proceedings;  October 1, 2006 ;     697 words ......the others due to occlusion of the left circumflex artery (2). In addition, five features...indicate that the right, rather than the left circumflex, is the culprit coronary artery: 1...ECG discrimination between right and left circumflex coronary arterial occlusion in patients...

Gated SPECT in Progressive Coronary Occlusion

The Journal of Nuclear Medicine;  October 1, 2007 ;     277 words ......thoracotomy for placement of an ameroid constrictor on the left circumflex coronary artery and indwelling femoral and left atrial catheters...contrast ratios decreased 21% from baseline scans in the left circumflex artery territory and improved 11 % from peak ischemia, whereas...

Is it time for change?

Journal of Electrocardiology;  September 1, 2008 ;     700+ words ......that are thought to be in the distribution of the right and left circumflex coronary arteries. This number includes 15 patients with...descending and the posterior basal branches of the right and/ or left circumflex coronary arteries. In the final analysis, the paper points...