EXERCISE INDUCED NONSUSTAINED VENTRICULAR TACHYCARDIA-A SIGNIFICANT MARKER OF CORONARY ARTERY STENOSIS?

2001 ◽  
Vol 33 (5) ◽  
pp. S272
Author(s):  
M Fejka ◽  
K A. Skelding ◽  
R A. Corpus ◽  
J Arends ◽  
W W. O??Neill ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Coronary Artery ◽  
Coronary Artery Stenosis ◽  
Artery Stenosis ◽  
Nonsustained Ventricular Tachycardia ◽  
Significant Marker ◽  
Exercise Induced

scholarly journals Relation of coronary artery stenosis and pressure gradient to exercise-induced ischemia before and after coronary angioplasty

1987 ◽  
Vol 10 (2) ◽  
pp. 253-260 ◽  
Author(s):  
Richard J. Peterson ◽  
Spencer B. King ◽  
William A. Fajman ◽  
John S. Douglas ◽  
Andreas R. Grüntzig ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Pressure Gradient ◽  
Coronary Angioplasty ◽  
Coronary Artery Stenosis ◽  
Artery Stenosis ◽  
Before And After ◽  
Exercise Induced

scholarly journals Exercise-Induced ST-Segment Elevation in ECG Lead aVR Is a Useful Indicator of Significant Left Main or Ostial LAD Coronary Artery Stenosis

2011 ◽  
Vol 4 (2) ◽  
pp. 176-186 ◽  
Author(s):  
Shanmugam Uthamalingam ◽  
Hui Zheng ◽  
Marcia Leavitt ◽  
Eugene Pomerantsev ◽  
Imad Ahmado ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Coronary Artery Stenosis ◽  
Artery Stenosis ◽  
Left Main ◽  
St Segment Elevation ◽  
St Segment ◽  
Lead Avr ◽  
Exercise Induced

scholarly journals Percutaneous Revascularization in a Case of Vasospastic Angina Associated with Polymorphic Ventricular Tachycardia

2015 ◽  
Vol 61 (4) ◽  
pp. 387-390
Author(s):  
Rudzik Roxana ◽  
Şuş Ioana ◽  
Hadadi László ◽  
Şerban Răzvan Constantin ◽  
Dobreanu Dan
Keyword(s):  
Ventricular Tachycardia ◽  
Coronary Artery ◽  
Calcium Channel ◽  
Coronary Artery Stenosis ◽  
Myocardial Revascularization ◽  
Artery Stenosis ◽  
Polymorphic Ventricular Tachycardia ◽  
Vasospastic Angina ◽  
Fractional Flow ◽  
Flow Reserve

AbstractIntroduction: Coronary vasospasm is a possible cause of ventricular tachyarrhythmias and is frequently associated with atherosclerotic lesions. The revascularization of mild to moderate coronary artery stenosis which causes symptoms only due to associated vasospasm is still a matter of debate, as the standard treatment of Prinzmetal angina is represented by the long term administration of calcium-channel blockers.Case presentation: We present the case of a 46 year old woman with an intermediate severity coronary artery stenosis complicated by vasospastic angina and subsequent polymorphic ventricular tachycardia. Although the functional significance of the fixed coronary artery lesion was equivocal at invasive fractional flow reserve measurement, a combined pharmacologic and interventional treatment strategy was chosen with stent implantation and long acting calcium channel blocker administration with a symptom-free, good clinical outcome.Conclusion: Patients with vasospastic angina and intermediate severity atherosclerotic coronary artery stenoses are at risk of malignant ventricular arrhythmias, therefore myocardial revascularization should be considered in addition to the standard medical treatment.

Exercise-induced S-wave prolongation in left anterior descending coronary artery stenosis

1992 ◽  
Vol 70 (18) ◽  
pp. 1407-1411 ◽  
Author(s):  
Andreas P. Michaelides ◽  
Harisios Boudoulas ◽  
Gregory P. Vyssoulis ◽  
Charalambos Skouros ◽  
Pavlos K. Toutouzas
Keyword(s):  
Coronary Artery ◽  
Coronary Artery Stenosis ◽  
Artery Stenosis ◽  
S Wave ◽  
Exercise Induced

Effect of superoxide dismutase and catalase on regional dysfunction after exercise-induced ischemia

1992 ◽  
Vol 263 (2) ◽  
pp. H392-H398 ◽  
Author(s):  
D. C. Homans ◽  
R. Asinger ◽  
T. Pavek ◽  
M. Crampton ◽  
P. Lindstrom ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Coronary Artery ◽  
Myocardial Stunning ◽  
Coronary Artery Stenosis ◽  
Left Ventricular ◽  
Artery Stenosis ◽  
Regional Myocardial Blood Flow ◽  
Wall Thickening ◽  
Regional Wall ◽  
Exercise Induced

This study was designed to test the hypothesis that the oxygen free radical scavengers superoxide dismutase (SOD) and catalase may reduce myocardial “stunning” after exercise-induced ischemia. To test this hypothesis, 8 mongrel dogs performed treadmill exercise for 10 min in the presence of a flow-limiting coronary artery stenosis. Regional left ventricular function was measured with ultrasonic microcrystals implanted to measure regional wall thickening. Regional myocardial perfusion was measured with radioactive microspheres. The combination of SOD (5 mg/kg iv) and catalase (5 mg/kg iv) did not affect heart rate, blood pressure, coronary artery flow, or regional myocardial blood flow at rest, during exercise, or in the postexercise period. SOD and catalase had no effect on regional wall thickening at rest before exercise. During exercise in the absence of a coronary artery stenosis, thickening was slightly lower during SOD and catalase infusion (27 +/- 11.0 vs. 30.8 +/- 11.5%, SOD vs. control P = 0.05). During exercise in the presence of a coronary artery stenosis, there was no difference in thickening. Infusion of SOD and catalase affected neither the transient rebound function occurring early after exercise nor the prolonged period of stunning. These results indicate that the myocardial stunning that follows exercise-induced ischemia is unlikely to be mediated by oxygen free radicals.

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