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  • Title: Evaluation of persistent coarctation of aorta after surgery with blood pressure measurement and exercise testing.
    Author: Connor TM.
    Journal: Am J Cardiol; 1979 Jan; 43(1):74-8. PubMed ID: 758773.
    Abstract:
    In 16 patients with coarctation of the aorta blood pressure in the arms and legs was measured before and after exercise using a treadmill and the Bruce protocol to achieve a standardized level of exercise. Three patients had had no previous operation; 13 had had a previous surgical repair of the coarctation. Three patients were studied both before and after operation. Two of the 13 patients studied postoperatively were found to have significant residual coarctation on the basis of a postexercise arm to leg pressure gradient that had not been appreciated on routine postoperative examination, and one of these patients was found to have residual coarctation after his second operation. One patient not operated on was believed to have mild coarctation of no clinical significance. Eleven of the 13 patients previously operated on (85%) were found to have had a satisfactory repair. A postexercise arm to leg systolic blood pressure gradient of more than 35 mm Hg after repair of coarctation of the aorta is suggested as an indication for recatheterization.
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