Fontan pulsátil: Oclusión transcatéter de la arteria pulmonar permeable. Seguimiento a mediano plazo

Gamboa, Ricardo; Mollón, Francisco P.; Ríos Méndez, Raúl E.; Cayré, Raúl O.; Cazzaniga, Mario; Arroyo, Graciela M.; Gutiérrez, Diego F.
July 2008
Archivos de Cardiología de México;jul-sep2008, Vol. 78 Issue 3, p293
Academic Journal
Objective: We report the percutaneous closure of the pulmonary artery with residual shunt in patients with Fontan type circuit. Method: Patients aged 9 and 11 years, with SaO2 of 88 and 96%, respectively. One of them coursing with headaches and functional class II. Both patients with total cavopulmonary anastomosis and fenestrated extracardiac conduit and permeable pulmonary artery (pulsatile Fontan). An Amplatzer duct-occluder device was implanted in the pulmonary artery entering from the femoral vein. Follow-up by means of clinical examination, imaging, and catetherization was pursued. Results: Case 1, patency fenestration, Qp/Qs: 0.7/1. Case 2, closed fenestration, Qp/Qs; 1.3/1. We obtained immediate occlusion with 6/4 and 8/6 devices, respectively; pressure recordings revealed modification of the arterial morphology to biphasic; pulmonary pressure dropped 2 mm Hg in the first patient, without alteration in the second case; no changes in SaO2 were registered. Time of fluoroscopy was 57 and 45 minutes, respectively. Follow-up was maintained for 2.8 and 2.3 years, respectively. In patient 1, headaches disappeared and the fenestration was occluded with an Amplatzer septal-occluder one year later, raising SaO2 to 96%; no complications occurred nor was recanalization of the pulmonary artery needed in either case. Conclusions: Percutaneous occlusion of patent pulmonary artery in patients with Fontan type circuit is a feasible and effective procedure, and avoids overload of the single ventricle.


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