الفهرس 
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Abstract
Background: Left ventricular hypertrophy is defined as an increase in the mass of the left ventricle, which can be secondary to an increase in wall thickness, an increase in cavity size, or both. LVH as a consequence of hypertension usually presents with an increase in wall thickness, with or without an increase in cavity size. Left ventricular hypertrophy (LVH) is associated with an increased risk of cardiovascular morbidity and mortality and this can be explained by its effects on ventricular function, coronary circulation and arrhythmogenesis.
Objective: This study was designed to evaluate the relationship between left ventricular hypertrophy (LVH) and coronary artery bypass grafting (CABG) procedure especially on the early outcome during the first 6 months following surgical intervention.
• Methods: This prospective cohort study included 82 patients with coronary artery disease indicated for isolated coronary artery bypass grafting (CABG). Those patients were admitted, operated upon electively by coronary artery bypass grafting (CABG) and followed -up in cardiothoracic surgery departments in faculty of medicine, Kafr elsheikh university hospitals in the period from April 2019 till November 2021. Those patients included in this study were divided into two groups according to presence or absence of left ventricular hypertrophy, group I those with LVH (38 patients) and group II those without LVH (44 patients).we included patients with these criteria ejection fraction greater than 50,all procedures will be done on-pump with cardiac arrest ,Sinus rhythm, no previous history of cardiac operations and patients with isolated coronary artery disease indicated for isolated coronary artery bypass grafting (CABG).
Results: The time to regain mechanical activity show highly significance to LVH patients. LVH group had a significantly longer periods of mechanical ventilation and ICU stay compared to non LVH group.. Also the mean ICU stay duration in the LVH versus the non LVH group was 3.81 days versus 2.5 days respectively. Statistical significance with LVH was evident regarding, ventricular arrhythmias, postoperative M.I and infections. The ICU follow up show significance rate of arrhythmia and infection in LVH group. Statistical analysis confirms the significant relationship between LVH and the development of complications. 28 cases with LVH had wound infection with serous discharge.