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ARTICLE |

Dilation of Arterial Stenoses

Thomas H. Hunt, MD; James L. Scherer, MD
JAMA. 1980;243(13):1327. doi:10.1001/jama.1980.03300390013010.
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To the Editor:—  The recent CLINICAL NOTE "Renovascular Hypertension Secondary to Arterial Fibrodysplasia: Treatment by Dilation Using a Fogarty Balloon" (242:1396, 1979) invites reply. The article reports the operative dilation of an angiographically demonstrated fibromuscular stenosis of a main renal artery.There is currently a surge in the treatment of occlusive vascular disease by the interventional angiographic technique of percutaneous transluminal angioplasty (PTA). This interest has been kindled by the development of maneuverable, percutaneous catheters incorporating polyvinyl balloons for dilation.1 Unlike the latex of Fogarty balloons, polyvinyl has a low compliance and a nonlinear, pressure-volume relationship. This balloon can be inflated to a predetermined cylindrical shape and diameter, with minimal risk of overdistension and undesirable vascular injury. Furthermore, in contrast to previous rigid dilating catheters, these newer systems allow selective percutaneous catheterization, and, because of the affixed balloon, greater degrees of dilation are possible with catheters of small diameter.

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