Riverdale, Iowa - Overview: 2000 Census: Counts: Percentages: Total Population: Total Population: 656: 100.00% : Population by Race: Asian alone: 1: 0.15%: Black or African American alone: 4: 0.61%: Some other race alone: 3: 0.46%: Two or more races: 6: 0.91%: White alone: 642: 97.87% : Population by Hispanic or Latino Origin (of any race) Persons Not of Hispanic or Latino Origin: 641: 97.71%
balloon angioplasty. [bÉloÌoÌnâ²]. a method of dilating or opening an obstructed blood vessel by threading a small, balloon-tipped catheter into the vessel. The balloon is inflated to compress arteriosclerotic lesions against the walls of the vessel, leaving a larger lumen, through which blood can pass.
Angioplasty and vascular stenting, which use mechanical devices, such as balloons, to open fistulas. and grafts and help them remain open. After the balloon is removed, a small wire mesh tube called. a stent may be implanted to keep the fistula or graft open if angioplasty alone fails.