Diseases of Arteries and Veins

Diseases of Arteries and Veins in Artemes Amu

Arterial Disorders

• Definition: Conditions that affect blood flow to tissues, causing potential ischemia (insufficient blood supply).
• Mechanisms of Blockage:
  • Clots in the arteries that hinder blood flow.
  • Arterial constriction (narrowing) which limits the passage of blood.
• Physiological Consequence:
  • Tissues become hypoxic, indicating a lack of oxygen () available to the cells.

Signs and Symptoms of Arterial Disorders

• Pain experienced during walking (often referred to as claudication).
• Observable changes in skin such as:
  • Pale skin due to reduced blood flow.
  • Hairlessness in affected areas, signaling possible underlying vascular issues.
• Presence or absence of pulses (pulselessness), indicating compromised perfusion.

Complications of Arterial Disorders

• Gangrene: Tissue death resulting from insufficient blood supply.
• Necrosis: Similar to gangrene, where localized areas of tissue cease to sustain life due to lack of blood flow and nutrients.

Venous Disorders

• Definition: Conditions characterized by impaired blood flow back to the heart due to malfunctioning venous structures.
• Mechanism of Dysfunction:
  • Damage to valves within the veins that normally promote the return flow of blood, leading to a condition known as venous engorgement.

Signs and Symptoms of Venous Disorders

• Alterations in skin color, often presenting as dark discolored skin in the affected area.
• Difficulty in walking due to swelling and discomfort in the legs.
• Presence of stasis ulcers, which are wounds that develop due to poor blood circulation.
• Dilated veins that may be visible on the surface of the skin, indicating venous hypertension.

Complications of Venous Disorders

• Amputations: A severe outcome which can occur if venous disease progresses to critical stages leading to tissue death.