The venous wall and valvular function in chronic venous insufficiency

Area of Science:

• Vascular Biology
• Medical Pathophysiology

Background:

• Chronic venous insufficiency (CVI) is a prevalent condition with complex multifactorial origins.
• Key etiological factors include vascular wall integrity, endothelial function, valvular competence, and microcirculatory status.

Purpose of the Study:

• To provide an overview of the primary etiological factors contributing to the development of CVI.
• To elucidate the roles of vascular wall, endothelium, valves, and microcirculation in CVI pathogenesis.
• To highlight the link between microcirculatory disturbances and CVI complications.

Main Methods:

• Literature review and synthesis of current understanding on CVI etiology.
• Analysis of the interplay between different etiological factors.
• Discussion of the pathophysiological mechanisms leading to CVI and its sequelae.

Main Results:

• Identified four critical etiological factors: vascular wall weakness, venous endothelial dysfunction, venous valve damage, and microcirculation disturbances.
• Established that vascular wall defects, endothelial dysfunction, and valve damage contribute to venous reflux and hypertension.
• Confirmed that microcirculatory disturbances are directly linked to the characteristic complications of CVI.

Conclusions:

• CVI development is multifactorial, with vascular wall, endothelium, and valves playing roles in reflux and hypertension.
• Microcirculatory disturbances are crucial in the manifestation of CVI complications.
• A comprehensive understanding of these etiological factors is essential for effective prevention and treatment strategies for CVI.