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.
Percutaneous transluminal coronary angioplasty (PTCA). A, Balloon-tipped catheter positioned in blocked artery. B, Balloon is centered. C, Balloon expands to (D) compress blockage.E, Artery diameter opened. From Polaski and Tatro, 1996.ercutaneous transluminal coronary angioplasty (PTCA). A, Balloon-tipped catheter positioned in blocked artery. B, Balloon is centered. C, Balloon expands to (D) compress blockage. E, Artery diameter opened.