Cases reported "Pulmonary Valve Stenosis"

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1/10. Stenosis of pulmonary veins in down syndrome.

    Two patients with down syndrome, intracardiac communications and elevated pulmonary arteriolar resistance presented early in life. Both patients had significant stenosis of pulmonary veins. The progressive nature of the stenosis is illustrated in one patient. Pulmonary venous stenosis in down syndrome has been recorded only twice before in the literature, and may play a part in the early onset of pulmonary vascular occlusive disease in some patients.
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2/10. Catheter closure of tube graft fenestration in extracardiac Fontan operation.

    As the extracardiac Fontan operation evolves, a reliable method for creating and subsequently closing communications between the systemic and pulmonary venous chambers would become useful. We describe a simple and safe technique of fenestration amenable to coil occlusion, which can be carried out in most cardiac catheterization laboratories.
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3/10. Aortico-right ventricular tunnel and critical pulmonary stenosis: diagnosis by two-dimensional and Doppler echocardiography and angiography.

    An infant with aortico-right ventricular (AO-RV) tunnel and critical pulmonary stenosis presented with severe distress at birth. We present the clinical, echocardiographic, and angiographic features, correlated with autopsy findings. Also we discuss the differentiation from other AO-RV communications and a theory for the embryogenesis. AO-RV tunnel should be considered in the differential diagnosis of a critically sick newborn with cyanosis, a "to and fro" murmur, and signs of right heart failure. The correct diagnosis can be made echocardiographically by demonstrating the two ends of the tunnel connecting the aorta and a dilated RV, two normal coronary arteries, and obtaining high-velocity systolic and diastolic Doppler flow signals in the tunnel. Surgical repair of this lesion is possible, and early diagnosis and a modification of the surgical procedure may help survival.
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4/10. Unusual interatrial communication after the fontan procedure.

    Two patients are presented who illustrate unusual venous anatomy allowing right-to-left shunting at the atrial level after Fontan repair.
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5/10. An unusual complication of a conduit-mounted homograft: valve leaflet fixation in the open position.

    Surgical management of left ventricular outflow tract obstruction in patients with complete transposition of the great arteries and an intact ventricular septum is difficult. Direct resection of subpulmonary stenosis has not produced satisfactory results. Thus, relief of stenosis has been accomplished with valved conduits from the left ventricle to the pulmonary artery. Initially, conduit tissue valves were porcine in nature. More recently, human-origin conduit tissue valves have been employed. In this report, we describe an unusual complication in a child with complete transposition in whom a homograft valve conduit was placed from the left ventricle to the pulmonary artery to relieve subpulmonary stenosis. The leaflets became fixed in an open position. Thus, the conduit was converted to a functionally nonvalved communication. The subpulmonary stenosis regressed, allowing egress from both the natural outflow tract and the conduit.
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6/10. A case of congenital triple valve disease.

    We report a case of congenital triple valve stenosis with dominant pulmonary valve disease, sparing the aortic valve, presenting at the age of 51 years with progressive shortness of breath and central cyanosis. At post mortem, no intracardiac right to left communication could be demonstrated.
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7/10. A case of false aneurysm of the right ventricle.

    False aneurysms of the right ventricle are rare and potentially fatal. A patient is described in whom a trilocular false aneurysm arose from the antero-inferior border of the right ventricle and entered the left hemi-diaphragm. It was successfully treated by closure of the communication with the right ventricle and relief of pulmonary stenosis with right ventricular outflow tract reconstruction. The fifteen previously reported cases of false aneurysms of the right ventricle are reviewed.
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8/10. Closure of Blalock-Taussig shunts using a new detachable coil device.

    Two children underwent interventional closure of a modified Blalock-Taussig shunt using a new detachable coil system (Duct-Occlud). This procedure has advantages over currently available materials to occlude these and other communications between the systemic and pulmonary circulations.
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9/10. Creation of a one-way interatrial communication in the treatment of critical pulmonary stenosis with intact ventricular septum: a case report.

    BACKGROUND: In biventricular repair of pulmonary outflow tract obstruction with intact ventricular septum, the right ventricle is loaded with total pulmonary blood flow acutely as the right-to-left shunt is abolished by closure of the atrial septal defect (ASD). methods: We designed a one-way interatrial communication by creation of an atrial septal flap to reduce the excessive volume load of the right ventricle. RESULTS: This procedure was successfully performed in a 3-year-old girl undergoing definitive biventricular repair for critical pulmonary stenosis associated with tricuspid stenosis and a small right ventricle. CONCLUSIONS: We believe that creation of a one-way interatrial communication might be a good alternative to adjustable ASD and/or bidirectional Glenn shunt in biventricular repair of critical pulmonary stenosis or pulmonary atresia with intact ventricular septum.
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10/10. Bilateral coronary arteriovenous fistula coexistent with atrial septal defect and pulmonary stenosis.

    A coronary arteriovenous fistula consists of a communication between a coronary artery and a cardiac chamber, a great artery or the vena cava. It is the most common anomaly that can affect coronary perfusion. Bilateral involvement of coronary fistula, however, constitutes an uncommon subgroup of coronary arteriovenous fistulas. We report a case which shows a rare occurrence of bilateral coronary arteriovenous fistula coexistent with atrial septal defect and pulmonic stenosis.
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