catheterization
catheterization (kath-it-er-I-zay-shŏn) n. the introduction of a catheter into a hollow organ. cardiac c. the introduction of special catheters into the chambers of the heart, usually via the arteries and veins of the arms or legs. It allows the measurement of pressures in the chambers and pressure gradients across the valves and the introduction of contrast medium for visualization of structures using X-rays (see coronary angiography). urethral c. the introduction of a catheter into the bladder in order to relieve obstruction to the outflow of urine (see also intermittent self-catheterization). vascular c. the introduction, via catheters, into the arteries or veins of contrast medium for radiography, drugs to constrict or expand vessels or to dissolve a thrombus, metal coils or other solid materials to block bleeding vessels or to thrombose aneurysms (see embolization), devices for monitoring pressures within important vessels, or balloons and stents to relieve obstruction.
More From encyclopedia.com
You Might Also Like
NEARBY TERMS
catheterization