Implantación electiva de stent recubierto en la coartación y recoartación en el joven y en el adulto / Elective implantation of covered stents for coarctation and recoarctation in adolescents and adults

Introducción y objetivos. El stent es un tratamiento eficaz en la coartación y la recoartación. Sin embargo, en jóvenes y adultos pueden ocurrir rotura de pared y disección de aorta y, en el seguimiento, aneurismas. Con el fin de reducir estas complicaciones, implantamos el stent recubierto mayoritariamente de manera electiva. Métodos. Desde 2005 realizamos el procedimiento en 17 pacientes (2 adolescentes y 15 adultos) acceso femoral, 16 de manera electiva y en 1 como rescate. Seguimos técnica de Mullins con implantación de stent recubierto de NuMED®. Resultados. Buena aposición del stent en 17 casos, con acampanamiento distal en 8. Reducción del gradiente de 40±16 a 2±2mmHg (p<0,001) y aumento del diámetro de luz de 4±2 a 19±3mm (p<0,001). Se comentan dos casos excepcionales: uno con rotura que se trató de rescate con stent en el stent, y otro con obstrucción total y aneurisma intercostal que presentó una evolución fatal, pues murió a las 48 h del procedimiento (se muestra la necropsia). El seguimiento clínico fue de 4 años, con estudio con ecocardiograma Doppler, y en 13 de los pacientes con otra técnica de imagen, todos ellos con buena evolución. Conclusiones. El stent recubierto es un tratamiento eficaz en la coartación y la recoartación del joven y el adulto, de elección en los casos con anatomía compleja, y es necesario como dispositivo de rescate en los casos de stent no recubierto (AU)

Introduction and objectives. Stent implantation is an effective therapy for aortic coarctation and recoarctation. However, in adolescents and adults, aortic wall rupture and dissection can occur, as well as aneurysms during follow-up. In order to reduce these complications, we electively implant covered stents. Methods. Since 2005, we have performed the procedure using femoral access in 17 patients (2 adolescents and 15 adults), 16 electively and 1 as a rescue procedure. We used the Mullins technique in all cases, implanting a NuMED® covered stent. Results. Good stent apposition was achieved in all 17 procedures; 8 patients required a distal flare. Gradient was reduced from 40 (16) mmHg to 2 (2) mmHg (P<.001) and lumen diameter increased from 4 (2) mm to 19 (3) mm (P<.001). Two exceptional cases are discussed: one patient with aortic wall rupture who underwent a rescue procedure using a stent within a covered stent and another patient with total obstruction and intercostal aneurysm in whom the outcome was fatal at 48 h postprocedure (autopsy is shown). Four-year clinical follow-up included Doppler echocardiography; an additional imaging technique was required in 13 patients. All patients recovered well and there were no complications. Conclusions. Covered stents are effective in treating coarctation and recoarctation in adolescents and adults, are the treatment of choice in patients with complex anatomy, and must be available in the operating room as a rescue device when implanting a conventional stent (AU)

Elective implantation of covered stents for coarctation and recoarctation in adolescents and adults.

INTRODUCTION AND OBJECTIVES: Stent implantation is an effective therapy for aortic coarctation and recoarctation. However, in adolescents and adults, aortic wall rupture and dissection can occur, as well as aneurysms during follow-up. In order to reduce these complications, we electively implant covered stents. METHODS: Since 2005, we have performed the procedure using femoral access in 17 patients (2 adolescents and 15 adults), 16 electively and 1 as a rescue procedure. We used the Mullins technique in all cases, implanting a NuMED(®) covered stent. RESULTS: Good stent apposition was achieved in all 17 procedures; 8 patients required a distal flare. Gradient was reduced from 40 (16) mmHg to 2 (2) mmHg (P<.001) and lumen diameter increased from 4 (2) mm to 19 (3) mm (P<.001). Two exceptional cases are discussed: one patient with aortic wall rupture who underwent a rescue procedure using a stent within a covered stent and another patient with total obstruction and intercostal aneurysm in whom the outcome was fatal at 48 h postprocedure (autopsy is shown). Four-year clinical follow-up included Doppler echocardiography; an additional imaging technique was required in 13 patients. All patients recovered well and there were no complications. CONCLUSIONS: Covered stents are effective in treating coarctation and recoarctation in adolescents and adults, are the treatment of choice in patients with complex anatomy, and must be available in the operating room as a rescue device when implanting a conventional stent.

Variante maligna del origen de la coronaria derecha / High risk anomalous origin of the right coronary artery

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[Percutaneous closure of complex fistula between the internal mammary artery and a lobar branch of a pulmonary artery]. / Cierre percutáneo de una fístula compleja entre la arteria mamaria interna y la arteria lobar pulmonar.

A through review of the literature identified only 20 reported cases of fistula involving the internal mammary (internal thoracic) artery and a lobar branch of a pulmonary artery. Surgical closure was frequently done to avoid complications associated with this anomaly. We report the first patient in whom percutaneous treatment was accomplished with a combined technique involving an Amplatzer Duct Occluder device and coils.