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Venous leak is an inability to maintain an erection in the presence of sufficient arterial blood flow through the cavernosal arteries of the penis. [6] The defect lies in the excessive drainage of veins in the cavernosal tissue of the penis, which undermines normal erectile function.
Chronic venous insufficiency (CVI) is a medical condition in which blood pools in the veins, straining the walls of the vein. [1] The most common cause of CVI is superficial venous reflux , which is a treatable condition. [ 2 ]
A venous ulcer tends to occur on the medial side of the leg, typically around the medial malleolus in the 'gaiter area' whereas arterial ulcer tends to occur on lateral side of the leg and over bony prominences. A venous ulcer is typically shallow with irregular sloping edges whereas an arterial ulcer can be deep and has a 'punched out' appearance.
Ultrasonography of chronic venous insufficiency of the legs allows the examiner to evaluate the gross anatomy of the venous networks as well as the blood flow direction, which is crucial in determining vein pathology. It has become the reference standard used in the assessment of the condition and hemodynamics of the veins of the lower limbs.
The method included venous stripping procedure of the retrocoronal plexus, followed by ligation of the dorsal deep vein (DDV) and circumflex veins (CVs) at the penile hilum. [7] In a 1990 study, a treatment approach was used to repair isolated glans insufficiency due to venous leakage.
Extravasation is the leakage of intravenously (IV) infused, and potentially damaging, medications into the extravascular tissue around the site of infusion. The leakage can occur through brittle veins in the elderly, through previous venipuncture access, or through direct leakage from wrongly positioned venous access devices.
Chronic venous insufficiency: Specialty: Dermatology: Lipodermatosclerosis is a skin and connective tissue disease. ... leakage of proteins into the interstitium, and ...
In the context of DCI these may form either as a result of bubble nucleation and growth by dissolved gas into the blood on depressurisation, which is a subset of DCS above, and leakage from venous circulation to arterial circulation via patent foramen ovale or other shunt, or by gas entering the blood mechanically as a result of pulmonary ...
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