ÖÐͼ·ÖÀàºÅ£ºR541.2 ÎÄÏ×±ê ʶÂ룺A ÎÄÕ±àºÅ£º1009_816X(2010)06_0413_04

    DOI:10.3969/j.issn.1009_816X.2010.06.03 The Predictive Value of ECG ST_segment Elevation for the Infarct_related Arteryin Acute Myocardial Infarction Patients with Combined Anterior and Inferior. XIA Li_ping, CHEN Jian_ming, LU Bing£¬ et al. Department of Cardiology£¬Shang yuHospital£¬Zhejiang 312300£¬China

    [Abstract] ObjectiveTo investigate the predictive value of ECG ST_segment eleva tion for infarct_related artery (IRA) in acute myocardial infarction patients wi th combined anterior and inferior.Methods41 acute myocardio infaction patientswith combined anterior and inferior ST_segment elevation were enrolled in prese nt study. According to the angiographic information, they were divided into twogroups: group RCA consisted of 24 patients with culprit artery at right coronaryartery (RCA), and 17 subjects in group LAD with culprit artery at left anteriordescending coronary artery (LAD). Based on 12_lead ECG recordings, the differen ces in average ST amplitude and the extent of the ST_segment offset between twogroups, as well as the relationship between ECG changes and infarct_related arte ry, were quantitatively assessed using student t test with SPSS software.Results Basic characteristics of enrolled subjects had no significant difference betwe en two groups. Compared with group LAD, the total of ST_segment elevation amplit ude in lead II, III, and AVF was higher in group RCA (2.46¡À1.24 vs 1.77¡À0.61,P<0.01), as well as a higher percentage of ST¢ó>ST¢ò(66% vs 28%, P<0.01)or ST ª©V1>STª©V3 in group RCA (75% vs 12%, P<0.05). However, the amplitud e sum of ST_segm ent elevation in lead V3 was more in group LAD than that in group RCA (1.60¡À0.3 6 vs 4.44¡À2.65, P<0.01).Conclusions The sum of ST_segment elevation amplitudein lead II, III, AVF and V3, as well as the ratio of STª©V1 to STª©V3,appearedto be of importance in identifying IRA in patients with combined anterior and i nferior myocardial infarction. ......