Inclusion Criteria:  All patients of sample size admitted to the cardiology department of Assiut university hospital with:  Acute typical chest pain Positive cardiac enzymes. ECG shows ST-segment elevation MI Documented occlusion of CA then treatment by PPCI  Exclusion Criteria:  1. Patients with well-known factors of left ventricular diastolic dysfunctions, including high blood pressure (over 140/90 mmHg), hypertrophic cardiomyopathy, left ventricular hypertrophy, bundle branch block, ventricular fibrillation, ventricular arrhythmia, severe valvular disease, complete heart block, and previous CABG.  2. Patients with the end-stage renal disease usually have markedly increased galactin-3 levels 3. Prior use of thrombolytic agents 4. Refusal of PPCI due to social or religious concerns 5. ST elevation on ECG without obvious coronary artery diseases such as acute myocarditis, early repolarization, or Takotsubo cardiomyopathy 6. Atrial fibrillation at the time of echocardiography examination.