Saturday, October 13, 2007
Greater height of ST segments and greater number of leads involved correlate with higher mortality and greater benefits from reperfusion therapy.
ST Score refers to the total millimeters of STE in all leads combined. High ST Score correlates with higher mortality
Measured at J point, a score greater than 12 to 13 mm for anterior AMI and greater than 6 – 9 mm for inferior AMI correlates with high risk of early complications
For example, in a study by Gwechenberger et al, a cutoff value of 13 mm for anterior MI and 9 mm for inferior MI stratifies patients into high- and low-risk subgroups for the development of acute congestive heart failure and severe rhythm disturbances during the first 24 hours of hospitalization.
1. Chan TC, Brady WJ, Harrigan RA et al. ECG in Emergency Medicine and Acute Care. 1st ed. Pennsylvania: Elsevier Mosby; 2005.
2. Gwechenberger M, Schreiber W, Kittler H et al. Prediction of early complications in patients with acute myocardial infarction by calculation of the ST score. Ann Emerg Med 1997; 30 (5):563-70.
PLEASE NOTE: All contents in this blog are copyrighted materials, unless otherwise stated. Even if you encounter materials in this page without a copyright notice, it does not mean that it is not copyrighted (Click here to read TEN BIG myths on copyright explained). This is especially so as most nations are signatories of the Berne Convention on international copyright law (World Intellectual Property Organization). Nevertheless, I have licensed almost all the materials contained here under Creative Commons licenses strictly for educational, non-commercial purposes only. Kindly email me at firstname.lastname@example.org should you want to use any of the materials for commercial purposes. Thank you.