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Mohamed Elsaid on The Role of Hyperlipidemia in Thrombogenesis

Mohamed Elsaid/LinkedIn

Jan 30, 2026, 10:14

Mohamed Elsaid on The Role of Hyperlipidemia in Thrombogenesis

Mohamed Elsaid, Veterinary Surgeon at Canadian Veterinary Hospital, shared on LinkedIn:

”Hyperlipidemia in Cushing’s Syndrome and Its Role in Thrombogenesis

Hyperlipidemia is a common but often underestimated metabolic consequence of Cushing’s syndrome, and it plays a direct role in the development of thromboembolic disease.

Pathophysiology

Chronic hypercortisolism induces dyslipidemia through multiple mechanisms:

Increased hepatic VLDL synthesis
Enhanced lipolysis with redistribution of free fatty acids
Reduced activity of lipoprotein lipase
Insulin resistance contributing to altered lipid metabolism

This typically results in:

– Marked hypertriglyceridemia
– Elevated total cholesterol
– Lipemic or grossly turbid serum samples (as seen clinically)
– Link Between Hyperlipidemia and Thrombosis

Hyperlipidemia contributes to thrombogenesis by:

Increasing blood viscosity
Promoting endothelial dysfunction
Enhancing platelet activation and aggregation
Reducing fibrinolytic activity via increased PAI-1
Upregulating procoagulant factors (Factors VIII, IX, XI)

These effects act synergistically with cortisol-induced:
Antithrombin III suppression
Decreased protein C and S activity

The result is a profound hypercoagulable state.

Clinical Implications

Patients with Cushing’s syndrome are predisposed to:
Venous thromboembolism (VTE)
Pulmonary thromboembolism
Microthrombi affecting renal, hepatic, and pulmonary perfusion

Hyperlipidemia should therefore be viewed as a pathologic contributor, not merely a biochemical abnormality.

Clinical Take-Home Messages

– Lipemic serum in Cushing’s patients is a red flag
– Routine lipid profiling should be part of endocrine case monitoring
– Thrombotic risk assessment is essential, especially in severe or untreated cases
– Early intervention may reduce morbidity and mortality.”

Mohamed Elsaid on The Role of Hyperlipidemia in Thrombogenesis