Chronic coronary syndrome (CCS) is a newly described classification devised by the European Society of Cardiology (ESC) 2019 to replace the term "Stable Coronary Artery Disease (CAD).

The main reason for effecting the change is the term is thought to better describe the disease process and encompass a wider spectrum of clinical, pharmacological, and pathophysiological entities.

Using this new term, the disease atherosclerosis manifests as CAD is categorized into Acute Coronary Syndrome (ACS) and CCS.

The main focus of introducing the concept of CCS is on the fact that CAD is a continuous phenomenon involving intravascular plaque aggregation and progression which has different evolutionary phases.

Dyslipidemia is recognized as a prominent risk factor for cardiovascular (CV) disease.

It is characterized by an elevation of serum total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), or triglycerides (TG) and reduced serum high-density lipoprotein cholesterol (HDL-C) concentration .

Genetically determined and metabolically induced disturbances in lipid metabolism, as manifested in several types of dyslipidemia, have been shown to be causally related to the development of coronary artery disease (CAD).

A diversity of clinical and angiographic studies has been made to evaluate the linkage between plasma lipid-control therapy in the development of recurrent cardiovascular events.

Independent predictors of recurrent CVD events or death include age, smoking, hypertension (HTN), dyslipidemia, diabetes mellitus, chronic kidney disease, and the underutilization of medications recommended by current treatment guidelines.

Inclusion Criteria:

• All patients have chronic coronary disease at Sohag University hospital who recieve drugs of anti hyperlipidemia .

Exclusion Criteria:

• Patients with first attack of acute coronary syndrome .
• Young patients <18 years .
• Old patients >65 years.

I examine cross sectional study which classify 100 patients with chronic coronary syndrome into:

two main groups :

• patient on statin therapy.
• patient not on statin therapy. _And determine if patints in sohag university hospital could achive the target lipid profile level of their group according to 2019 ESC/EAS Guidelines for the management of dyslipidaemia.

I classify 100 patients with chronic coronary syndrome into:

two main groups :

• patient on statin therapy.
• patient not on statin therapy. _And determine if patints in sohag university hospital could achive the target lipid profile level of their group according to 2019 ESC/EAS Guidelines for the management of dyslipidaemia.