The objective of this study to assess cardiovascular complications in chronic hemodialysis patients in the nephrology and hemodialysis department of the Ibn Rochd University Hospital. Descriptive cross-sectional study with retrospective collection, having focused on 70 patients with chronic renal failure on dialysis, within the hemodialysis service of the IBN ROCHD CHU. The records of 70 chronic hemodialysis patients were explored, the sex ratio was M/W 1.1 with a slight male predominance. The average age was 46.5 years with extremes ranging from 16 to 93 years. The initial nephropathy was an indeterminate nephropathy in 53.5%, glomerular in 29.5%, diabetic in 7% and hypertensive in 1.4%. The age of the periodic hemodialysis treatment in our patients varied from 1 month to 44 years, with an average duration of 17.3 years. 91.5% of patients had an arteriovenous fistula as a vascular approach, 8.4% of patients were dialysis on a catheter. A cardiac ultrasound was normal in 19% of hemodialysis patients. Echocardiographic abnormalities are dominated by valve lesions which represent 49.5%, followed by left ventricular enlargement (14.5%), then comes dilated cardiomyopathy (12%), And pulmonary hypertension represents only 3.8%. Echocardiography is a non-invasive, available and reproducible test that can accurately diagnose a heart defect. It is an essential tool in the care of the hemodialysis patient who dies every second time from a cardiac cause. Early detection and management of chronic renal failure can certainly prevent these complications