Tombstone ST elevation: Difference between revisions
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==Criteria== | ==Criteria== | ||
#The [[R wave]] is absent or its duration is <0.04 seconds with minimal amplitude; | #The [[R wave]] is absent or its duration is <0.04 seconds with minimal amplitude; | ||
#The [[ST segment]] is convex upward and merges with the descending limb of the [[R wave]] or the ascending limb of the QS wave; | #The [[ST segment]] is convex upward and merges with the descending limb of the [[R wave]] or the ascending limb of the [[QS wave]]; | ||
#The peak of the convex ST segment is higher than whatever remains of the R wave; and | #The peak of the convex [[ST segment]] is higher than whatever remains of the [[R wave]]; and | ||
#The convex ST segment merges with the ascending limb of the T wave. | #The convex ST segment merges with the ascending limb of the [[T wave]]. | ||
==References== | ==References== | ||
Revision as of 18:45, 13 September 2011
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Tombstone ST elevation is an electrocardiographic pattern of ST segment elevation whereby the QRS complex, the ST segment and the T wave merge to form a large upright monophasic deflection called a "tombstone"[1][2][3][4]. This electrocardiographic pattern has been associated with poorer clinical outcomes in the setting of ST segment elevation myocardial infarction.
Criteria
- The R wave is absent or its duration is <0.04 seconds with minimal amplitude;
- The ST segment is convex upward and merges with the descending limb of the R wave or the ascending limb of the QS wave;
- The peak of the convex ST segment is higher than whatever remains of the R wave; and
- The convex ST segment merges with the ascending limb of the T wave.
References
- ↑ Wimalaratna HS. “Tombstoning” of ST segment in acute myocardial infarction. Lancet 1993; 342 (8869): 496.
- ↑ Guo XH, Yap YG, Chen LJ, et al. Correlation of coronary angiography with “tombstoning” electrocardiographic pattern in patients after acute myocardial infarction. Clin Cardiol 2000; 23: 347-52.
- ↑ Balci B, Yesildag O. Correlation between clinical findings and the “tombstoning” electrocardiographic pattern in patients with anterior wall acute myocardial infarction. Am J Cardiol 2003; 92: 1316-8.
- ↑ Birnbaum Y, Sclarovsky S. “Tombstoning” of ST segment in acute myocardial infarction. Lancet 1993; 342: 1494.