Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
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Catheter Cardiovasc Interv · Nov 2013
The Medtronic Melody® transcatheter pulmonary valve implanted at 24-mm diameter--it works.
We report the Melody valve implanted and/or expanded to 24-mm diameter. ⋯ The Melody valve can be implanted at 24 mm in the stenotic/regurgitant bioprosthetic pulmonary, tricuspid, and aortic valve, dysfunctional right ventricle to pulmonary artery conduit, and the native right ventricular outflow tract, whereas the valve remains competent with only mild regurgitation.
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Catheter Cardiovasc Interv · Nov 2013
Case ReportsHybrid Melody pulmonary valve replacement in an adult with severe pulmonary hypertension and pulmonary artery aneurysm.
A 48-year-old female with D-TGA, ventricular septal defect (VSD), pulmonary stenosis, pulmonary hypertension (PAH), and total anomalous pulmonary venous connection underwent hybrid intervention for a pulmonary artery (PA) aneurysm and replacement of a dysfunctional pulmonary valve (PV). She underwent a hemi-Mustard procedure at 9 years of age but remained cyanotic. She developed atrial fibrillation, heart failure, and functional decline at 43 years of age. ⋯ Six months post procedure, she is not on oxygen, her resting room air saturation is 94%, and echocardiography shows stable Melody valve function. This case highlights the utility of a hybrid approach in the treatment of an adult with complex congenital heart disease, heart failure and severe PAH, considered at the highest risk for adverse surgical outcomes. The short-term efficacy of the Melody valve in severe PAH is reassuring.
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Catheter Cardiovasc Interv · Nov 2013
Emergency cardiac surgery during transfemoral and transapical transcatheter aortic valve implantation: incidence, reasons, management, and outcome of 411 patients from a single center.
Transcatheter aortic valve implantation (TAVI) is increasingly performed in high-risk patients with severe aortic valve stenosis. Incidence and impact of emergency cardiac surgery (ECS) during TAVI is unclear. ⋯ Life-threatening complications requiring bail-out ECS occur in a substantial proportion during TAVI. ECS dramatically affects early and late outcome after TAVI. Under optimal conditions more than half of the ECS-patients can be salvaged. With the current technology of THV-systems ECS should be an integral part of the logistic conditions surrounding TAVI and is far from being futile in this patient population.
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Catheter Cardiovasc Interv · Nov 2013
Case ReportsLeaflet length and left main coronary artery occlusion following transcatheter aortic valve replacement.
Coronary artery occlusion during transcatheter aortic valve replacement is a rare complication. However, it is a very severe and life-threatening event. Although there are some possible causes of this phenomenon, definite etiologies and predictors are unknown because of the small number. ⋯ The fluoroscopy appeared to show the long leaflet covering the left main coronary artery ostium immediately after the valve deployment. The height of the coronary artery ostium from the aortic annulus appeared sufficiently high in this case and did not explain the coronary compromise; leaflet length in relation to the coronary sinus dimension seemed more relevant. The ratio between leaflet length and curved coronary sinus height (L/C) may be one novel predictor for coronary artery occlusion.
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Catheter Cardiovasc Interv · Oct 2013
Case ReportsTranscatheter aortic valve implantation in a patient with mechanical mitral prosthesis: a lesson learned from an intraventricular clash.
We hereby present the case of a patient with severe aortic stenosis who underwent in her previous medical history a mitral valve replacement with a mechanical valve (Omnicarbon 27), and progressively developed a severe aortic stenosis. This patient was judged inoperable and then scheduled for CoreValve Revalving System implantation. Despite a good positioning of the CoreValve, an acute, severe mitral regurgitation developed soon after implantation as a consequence of the impaired movement of the mitral prosthesis leaflet. ⋯ A good mitral prosthesis function was restored disengaging the CoreValve from the aortic annulus. After few months, the patients underwent successful Edwards-Sapien valve implantation through the Corevalve. This case strongly demonstrates how much a careful evaluation of the features of the mitral prosthesis and patient anatomy is crucial to select which specific transcatheter bioprosthesis would better perform.