Tombstone ST elevation: Difference between revisions
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==Overview== | ==Overview== | ||
Tombstone [[ST elevation]] is a | Tombstone [[ST elevation]] is a 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". This electrocardiographic pattern has been associated with poorer clinical outcomes in the setting of [[ST segment elevation myocardial infarction]]. | ||
==Criteria== | ==Criteria== | ||
Revision as of 18:08, 13 September 2011
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Tombstone ST elevation is a 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". 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.