PMID- 31169133 OWN - NLM STAT- MEDLINE DCOM- 20200722 LR - 20200722 IS - 0972-2823 (Electronic) IS - 0022-3859 (Print) IS - 0022-3859 (Linking) VI - 65 IP - 3 DP - 2019 Jul-Sep TI - Correlation of cumulative ST elevation with left ventricular ejection fraction and 30-day outcome in patients with ST elevation myocardial infarction. PG - 146-151 LID - 10.4103/jpgm.JPGM_364_18 [doi] AB - BACKGROUND: The electrocardiogram (ECG) is the first and often the only investigation available prior to definitive therapy in patients with ST elevation myocardial infarction (STEMI). A good prognostic marker is the left ventricular ejection fraction (LVEF) on ECG. Our aim was to assess the correlation between ST elevation (STE) in ECG and the LVEF and thereby aid the prognosis of patients with STEMI. METHODS: This was a prospective cohort study of 230 patients with STEMI. A baseline 12-lead ECG was taken to calculate the sum of STE at the J point in all the leads showing elevation. The STE was measured 90 min after revascularization to calculate the ST resolution percentage (STR%). All patients underwent echocardiography, and the LVEF was measured using biplane Simpson's method. RESULTS: A total of 136 patients with anterior myocardial infarction (MI), 35 with inferior MI, and 59 with inferoposterior MI were included in the study. Mean STE was 13 mm and was significantly higher among patients with anterior MI. There was a good inverse correlation between the STE and the LVEF with a correlation coefficient of -0.64. STR% had a correlation coefficient of 0.59 to the LVEF. A formula was generated to calculate the LVEF based on the STE as follows: LVEF = (37.34 - STE)/0.567. An STE >/=15 mm predicted an LVEF <35% with a sensitivity and specificity of 70%. CONCLUSION: The STE and STR% are useful surrogate markers in prognosticating patients irrespective of the type of STEMI. FAU - Kiron, V AU - Kiron V AD - Department of Cardiology, Christian Medical College, Vellore, Tamil Nadu, India. FAU - George, P V AU - George PV AD - Department of Cardiology, Christian Medical College, Vellore, Tamil Nadu, India. LA - eng PT - Journal Article PL - India TA - J Postgrad Med JT - Journal of postgraduate medicine JID - 2985196R SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Echocardiography/*statistics & numerical data MH - Female MH - Humans MH - Male MH - Middle Aged MH - Predictive Value of Tests MH - Prognosis MH - Prospective Studies MH - ST Elevation Myocardial Infarction/*diagnostic imaging/*mortality/physiopathology MH - Sensitivity and Specificity MH - *Stroke Volume MH - Ventricular Function, Left/*physiology PMC - PMC6659429 OTO - NOTNLM OT - ST elevation myocardial infarction OT - ST resolution percentage OT - sum ST elevation COIS- There are no conflicts of interest. EDAT- 2019/06/07 06:00 MHDA- 2020/07/23 06:00 PMCR- 2019/07/01 CRDT- 2019/06/07 06:00 PHST- 2019/06/07 06:00 [pubmed] PHST- 2020/07/23 06:00 [medline] PHST- 2019/06/07 06:00 [entrez] PHST- 2019/07/01 00:00 [pmc-release] AID - 259185 [pii] AID - JPGM-65-146 [pii] AID - 10.4103/jpgm.JPGM_364_18 [doi] PST - ppublish SO - J Postgrad Med. 2019 Jul-Sep;65(3):146-151. doi: 10.4103/jpgm.JPGM_364_18.