Abstract
0.5 mm ST segment displacement was assessed in the 12-lead ECG at baseline for the remaining 3,657 pts. Results were correlated to &month mortality. Results: There were 442 (11.5%) pts who had STEz1.00 mm in lead aVR. The B-month mortality rates were 29.2% (129/442) in pts with STE 21 .OO mm in lead aVR vs 4.6% (165/3,415) in pts without STE 21 .OO mm in lead aVR (pcO.001). The 6-month mortality rates were 29.4% (1211412) in pts with STE 51.00.~2.00 mm I” lead aVR and 26.7% (6/ 30) in pts with STE ZOO mm in lead aVR (p=O.92). All pts with STE >I.00 mm in lead aVR had ST segment depression (STD) to.5 mm in other leads. There was a strong correlation between STE in lead aVR and the sum of STD in other leads (r=O.63, p l .OO mm in lead aVR were 7.2% (1 Oll1407) if STD was present vs 3.2% (64/2,006) if STD was absent (p<O.OOl).
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