venous hypertension
Elevated pressure in the venous system due to outflow obstruction, valvular incompetence, or increased venous volume.
Full Definition
Venous hypertension refers to pathologically elevated pressure within the venous circulation, typically measured in the peripheral venous system of the lower extremities. This condition can result from various mechanisms including venous outflow obstruction (thrombosis, external compression), valvular incompetence (primary varicose veins, post-thrombotic syndrome), or increased venous volume (heart failure, pregnancy). Sustained venous hypertension leads to characteristic clinical manifestations including edema, skin changes (lipodermatosclerosis, hyperpigmentation), and ultimately venous ulceration. Measurement can be performed through direct venous pressure monitoring or estimated using photoplethysmography and other non-invasive techniques.
Usage
Usage note: Distinct from systemic arterial hypertension; refers specifically to venous pressure elevation.
In Context
- "Chronic venous hypertension resulted in characteristic skin changes and eventual ulcer formation." — wound care consultation
- "Treatment of venous hypertension focuses on addressing the underlying valvular incompetence." — treatment planning note