ST elevation in V7-9 suggests posterior infarction. It is detected by recording the special posterior leads by moving the V4-6 electrodes to the posterior axillary line (V7), tip of the scapula (V8) and paraspinal region (V9) keeping them in the same horizontal plane as the normal V6.
See also: ST segment
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- Anna Pickens (2013) - Posterior MI: "EM in 5", (Accessed: 11/08/2019)