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Native Coarctation (native + coarctation)
Selected AbstractsThe Use of 3D Contrast-Enhanced CT Reconstructions to Project Images of Vascular Rings and Coarctation of the AortaECHOCARDIOGRAPHY, Issue 1 2009Thomas G. Di Sessa M.D. Background: Aortic arch and pulmonary artery anomalies make up a group of vascular structures that have complex three-dimensional (3D) shapes. Tortuosity as well as hypoplasia or atresia of segments of the aortic arch or pulmonary artery makes the conventional two-dimensional (2D) imaging difficult. Methods: Nine patients with native coarctation or recoarctation and 4 patients with a vascular ring had a CT scan as a part of their clinical evaluation. There were 7 males. The mean age was 11.7 years. (range 19 days to 29 years) The mean weight was 22.7 kg (range 3.3,139.0 kg). The dicom data from contrast CT scans were converted by the Amira software package into a 3D image. The areas of interest were selected. The images were then projected in 3D on a standard video monitor and could be rotated 360° in any dimension. Results: Adequate CT scans and 3D reconstructions were obtained in 12 of 13 patients. There were 85,1,044 slices obtained in the adequate studies. We could not reconstruct a 3D image from a patient's CT scan that had only 22 slices. The anatomy defined by 3D was compared to 2D CT imaging and confirmed by cardiac catheterization or direct visualization in the operating room in the 12 patients with adequate 3D reconstructions. In 5 of 12 patients, 3D reconstructions provided valuable spatial information not observed in the conventional 2D scans. Conclusion: We believe that 3D reconstruction of contrast-enhanced CT scans of these complex structures provides additional valuable information that is helpful in the decision-making process. [source] Stent Implantation for Coarctation in AdultsJOURNAL OF INTERVENTIONAL CARDIOLOGY, Issue 5 2003JEAN-FRANÇOIS PIÉCHAUD M.D. Transcatheter dilatation is considered the elective treatment of residual coarctation. In the presence of native coarctation, dilatation is often effective but in the first months of life, and the risk of aneurysm formation is not low. The use of stents in adolescents and adults provides excellent results and seems to reduce the complication and aneurysm rates. A perfect technique, now well codified, is necessary. (J Interven Cardiol 2003;16:413,418) [source] Long-term effects of balloon angioplasty on left ventricular hypertrophy in adolescent and adult patients with native coarctation of the aorta.CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 6 2007Up to 18 years follow-up results Abstract Background: Little is known regarding the long-term follow-up results of balloon angioplasty (BA) for patients with native aortic coarctation (AC) on left ventricular hypertrophy (LVH) regression. Objectives: The purpose of this study was to define the long-term effect of BA of AC on LVH in adolescent and adult patients. Methods: Follow-up data of 53 patients (36 male) mean age 24 ± 9 years undergoing BA for discrete AC at median interval of 11.8 years (range 4,18 years) including cardiac catheterization, magnetic resonance imaging, and Echocardiography form the basis of this study. Patients were divided into two groups at 1 year after BA based on absence (group A) or presence (group B) of persistent hypertension and need for medication. Results: Forty-nine patients had baseline LVH, BA produced an immediate reduction in peak AC gradient from 66 ± 23 mm Hg (95% confidence interval [CI]: 59.5,72.7) to 10.8 ± 7 mm Hg (95% CI: 8.8,12.5) (P < 0.0001). Follow-up catheterization 12 months later revealed a residual gradient of 6.2 ± 6 mm Hg (95% CI: 4.4,7.9) (P < 0.001). The blood pressure had normalized without medication in 38 of the 49 patients (165 ± 17 to 115 ± 10 mm Hg). Left ventricular mass index (LVMI) decreased significantly (>20% decrease LVMI from baseline) in 48 patients (98%) at median interval 1.4 years (range 0.5,3 years) post BA, group A (38 patients) LVMI decreased from 132 ± 30.7 g/m2 (95% CI: 122,141.9) to 86 ± 19.9 g/m2 (95% CI: 79.5,92.5) (P < 0.0001). Similarly, in 10 patients (group B) the LVMI decreased from 157 ± 38.7 g/m2 (95% CI: 127,185) to 102 ± 29 g/m2 (95% CI: 105,151) (P < 0.0001) at follow-up. Mild (<20% decrease in LVMI) regressions were noted in one patient from group B. There was no progression to LVH in the four patients who had normal baseline LVMI. Conclusion: (1) Long-term results of BA for discrete AC are excellent and should be considered as first option for treatment of this disease; (2) Regression of LVH (,20% reduction in LVMI) occurred in 98% of patients after BA. © 2007 Wiley-Liss, Inc. [source] Simultaneous treatment of native coarctation of the aorta combined with patent ductus arteriosus using a covered stentCATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 3 2003Masood Sadiq Abstract A 19-year-old girl with coarctation of the aorta and patent ductus arteriosus underwent simultaneous treatment of native coarctation and closure of ductus arteriosus using a covered Cheatham-Platinum stent. This technique may be used as an alternative to other forms of interventional therapy or surgery for this combination of lesions in adolescents and adults. Cathet Cardiovasc Intervent 2003;59:387,390. © 2003 Wiley-Liss, Inc. [source] | ||||||||||