BACKGROUND: Identifying @entity1188 ( @entity1188 ) in @entity1 with inferior @entity583 ( @entity583 ) has prognostic and therapeutic benefits. OBJECTIVES: To differentiate @entity1188 and the location of culprit lesion in inferior @entity583 , using ST segment changes in lead aVR. METHODS: ST segment changes in lead aVR were recorded in 150 @entity1 , admitted with first inferior @entity583 . The association of @entity1188 and the location of culprit lesion with ST segment changes in aVR were investigated. RESULTS: ST elevation >=  0.5 mm in lead aVR was present in 17 @entity1 (11.3%), ST @entity308 >=  0.5 mm in 74 @entity1 (49.3%) and 59 @entity1 (39.3%) did not have significant ST segment changes. Right coronary artery (RCA) was the @entity1188 in 117 @entity1 (78%) and left circumflex artery (LCX) in 33 @entity1 (22%). Prevalence of RCA involvement as the @entity1188 was different in three study groups (94.1% in ST elevation group, 83.1% in isoelectric group and 70.3% in ST @entity308 group, P = 0.049). Presence of ST elevation had a sensitivity and specificity of 13.68 % and 96.97%, for detecting @entity453 , respectively. ST @entity308 had 66.67% sensitivity and 55.56% specificity for identifying LCX lesions. Clinical complications were low in our study with no significant difference among @entity1 of three groups. CONCLUSIONS: Presence of ST elevation is highly suggestive of @entity453 versus LCX lesions, whereas absence of ST elevation cannot rule out @entity453 . Presence of ST @entity308 has a moderate sensitivity and specificity for LCX lesions.

The Value of Lead aVR ST Segment Changes in Localizing Culprit Lesion in Acute XXXX and Its Prognostic Impact.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity308 :: ('MESH:D003866', 'Disease') :: ['depression'] @entity1188 :: ('MESH:D007238', 'Disease') :: ['infarct-related artery', 'IRA'] @entity453 :: ('MESH:D003324', 'Disease') :: ['RCA lesions'] @entity583 :: ('MESH:D009203', 'Disease') :: ['STEMI', 'ST elevation myocardial infarction']
@entity583 :: (MESH:D009203,Disease) :: ['Inferior Myocardial Infarction']
