Balloon Angioplasty for the Treatment of Native Coarctation: Results of Valvuloplasty and Angioplasty of Congenital Anomalies Registry Michael Tynan, MD, John P. Finley, MD, Vilmir Fontes, MD, John Hess, MD, and Jean Kan, MD

Data on dilation of 141 native coarctation procedures in 140 patients between 3 days and 29 years of age were submitted to the Valvuloplasty and Angioplasty of Congenital Anomalies (VACA) Registry. Fifteen patients were 0.05. RESULTS

From Guy’s Hospital, London, England; Izaak Walton Killam Children’s Hospital, Halifax, Nova Scotia, Canada; Sector de Cardio Patias Congenitas, Sao Paolo, Brazil; Sophia Children’s Hospital, Rotterdam, The Netherlands; and the Division of Pediatric Cardiology, The Johns Hopkins Hospital, Baltimore, Maryland. Manuscript received November 22, 1989, and accepted November 28. Address for reprints: Michael Tynan, MD, Guy’s Hospital, St. Thomas Street, London, England SE1 9RT.

790

THE AMERICAN

JOURNAL

OF CARDIOLOGY

VOLUME

65

Reports were received on 141 procedures in 140 patients. Full data were available in 92 procedures. Failures to report data were no date of birth in 29, no pressure data after dilation in 1, no pressure data before or after dilation in 12, no coarctation diameter before dilation in 4, no coarctation diameter after dilation in 4 and no coarctation diameter before or after dilation in 39. Twelve patients had no reported data concerning the pressures or diameters of the coarctation site before or after dilation. Ages ranged from 3 days to 29 years. Fifteen were under 28 days of age and another 15 were aged between 29 days and 12 months.

Pressure gradients across the coarctation before and TABLE I Pressure Gradients Across the Coarctation and after the dilation were reported in 126 procedures (TaDiameters of the Coarcted Segment Before and After Balloon ble I). The mean gradient before angioplasty was 48 f Angioplasty 18.6 mm Hg, and after angioplasty it was 12 f 11.3 Pressure Gradient Coarctation Diameter mm Hg. In the subgroup aged