![]() ![]() Another cutaneous form of edema is myxedema, which is caused by increased deposition of connective tissue.Common appearances of cutaneous edema are observed with mosquito bites, spider bites, bee stings ( wheal and flare), and skin contact with certain plants such as poison ivy or western poison oak, the latter of which are termed contact dermatitis.The periorbital tissues are most noticeably swollen immediately after waking, perhaps as a result of the gravitational redistribution of fluid in the horizontal position. Edema surrounding the eyes is called periorbital edema (puffy eyes).Affected people may perceive coloured haloes around bright lights. Edema may also be found in the cornea of the eye with glaucoma, severe conjunctivitis, keratitis, or after surgery.Pleural effusions may occur when fluid also accumulates in the pleural cavity. Pulmonary edema produces shortness of breath. It can also occur in altitude sickness or on inhalation of toxic chemicals. This is usually due to failure of the left ventricle of the heart. Pulmonary edema occurs when the pressure in blood vessels in the lung is raised because of obstruction to the removal of blood via the pulmonary veins.It causes drowsiness or loss of consciousness, leading to brain herniation and death. It can occur in toxic or abnormal metabolic states and conditions such as systemic lupus or reduced oxygen at high altitudes. Cerebral edema is extracellular fluid accumulation in the brain.Certain drugs (for example, amlodipine) can cause pedal edema. It can also occur in patients with increased hydrostatic venous pressure or decreased oncotic venous pressure, due to obstruction of lymphatic or venous vessels draining the lower extremity. It can occur due to diminished venous return of blood to the heart due to congestive heart failure or pulmonary hypertension. This often occurs in immobile patients, such as paraplegics or quadriplegics, pregnant women, or in otherwise healthy people due to hypervolemia or maintaining a standing or seated posture for an extended period of time. Peripheral edema (“dependent” edema of legs) is extracellular fluid accumulation in the lower extremities caused by the effects of gravity, and occurs when fluid pools in the lower parts of the body, including the feet, legs, or hands. ![]() Certain organs develop edema through tissue specific mechanisms. ( March 2021) ( Learn how and when to remove this template message)Īn edema will occur in specific organs as part of inflammations, tendinitis or pancreatitis, for instance. Unsourced material may be challenged and removed. Please help improve this section by adding citations to reliable sources. The word is from the Greek οἴδημα oídēma meaning 'swelling'. Elevating the legs and support stockings may be useful for edema of the legs. If the underlying mechanism involves sodium retention, decreased salt intake and a diuretic may be used. Treatment depends on the underlying cause. The condition is more concerning if it starts suddenly, or pain or shortness of breath is present. It may also occur in immobile patients (stroke, spinal cord injury, aging), or with temporary immobility such as prolonged sitting or standing, and during menstruation or pregnancy. Ĭauses may include venous insufficiency, heart failure, kidney problems, low protein levels, liver problems, deep vein thrombosis, infections, angioedema, certain medications, and lymphedema. Other symptoms depend on the underlying cause. Symptoms may include skin which feels tight, the area may feel heavy, and joint stiffness. Most commonly, the legs or arms are affected. Venous insufficiency, heart failure, kidney problems, low protein levels, liver problems, deep vein thrombosis, lymphedema Įdema, also spelled oedema, and also known as fluid retention, dropsy, hydropsy and swelling, is the build-up of fluid in the body's tissue. Skin which feels tight, area may feel heavy ![]()
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