title: [Value of ST-segment elevation resolution after primary coronary angioplasty in predicting early and late left ventricular function in patients with anterior acute myocardial infarction].
abstract: The aim of our study was to define a predictive value of ST-segment resolution after coronary reperfusion for early and late left ventricular (LV) function. We also studied its relation to angiographic marker of myocardial reperfusion, myocardial blush grade (MBG).
  
  
  METHODS
  Study population consisted of 105 patients (75 men, 30 women, mean age 62+/-13 years) treated with primary PTCA for anterior myocardial infarction (AMI) within 12 hours from symptoms onset. ECG was performed before - and 30 min. after PTCA. We evaluated angiographic markers of recanalization (TIMI, corrected TIMI frame count) and myocardial reperfusion - MBG. Echocardiography was performed 3 days and 6 months after AMI. Patients were divided into 2 groups regarding reduction -50% in ST segment elevation after recanalization (rST): group I (n=37) with rST, and group 2 (n=68) without rST RESULTS: In group I we noticed higher CPK level (2890,2+/-2404,2 U/I vs. 3980,9+/-2812,2 U/I, p<0,01). MB grade 3 was significantly more often found in group 1 at 29 pts (78,4%) than in group 2 at 18 pts (23,5%), p<0,0001. MG grade 0 or 1 were more often in group 2 (57,3% vs. 2,7%, p<0,01). Ejection fraction (EF) was higher in group 1 after 3 days (48,9+/-9,5% vs. 44,2+/-14,3%, p<0,01), as well as after 6 months (56,4+/-14,4% vs. 49,5+/-14,3%, p=0,001). After 6 months end-diastolic volume (EDV) was higher in group 2 (128,1+/-46,1 ml vs. 110,2+/-49,7 ml, p<0,008).
  
  
  CONCLUSIONS
  ST-resolution after successful PTCA is a simple and effective marker of myocardial reperfusion after recanalization which correlates with angiographic markers of tissue reperfusion. Early ST-segment resolution is connected with better early and late LV function. Patients without early ST-segment elevation resolution have a higher risk of LV remodelling.
authors.affiliation: I Klinika Kardiologii Akademii Medycznej w Poznaniu. aaraszkiewicz@interia.pl
authors.forename: Aleksander
authors.initials: A
authors.lastname: Araszkiewicz
authors.forename: Maciej
authors.initials: M
authors.lastname: Lesiak
authors.forename: Stefan
authors.initials: S
authors.lastname: Grajek
authors.forename: Tatiana
authors.initials: T
authors.lastname: Mularek-Kubzdela
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Popiel
authors.forename: Andrzej
authors.initials: A
authors.lastname: Cieśliński
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications* / Q000503:physiopathology / Q000628:therapy; D011237:Predictive Value of Tests; D013318:Stroke Volume; D013997:Time Factors; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis* / Q000209:etiology* / Q000503:physiopathology; D020257:Ventricular Remodeling