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Aortic atresia with interrupted aortic arch: A combination incompatible with life?
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Routine left atrial catheterization for the post-operative management of cardiac surgical patients: is the risk justified?
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Intracardiac total anomalous pulmonary venous return or septum primum malposition? Complete repair in left atrial isomerism
No full textTotal anomalous pulmonary venous return due to septum primum malposition is a poorly understood condition despite being very common in left atrial isomerism or polysplenia syndrome. Due to the leftward displacement of the septum primum, either the two right pulmonary veins or all four pulmonary veins can drain abnormally into the right atrium, despite their correct position. In other words, the four pulmonary veins (or the two right pulmonary veins), looking from outside the heart, return at the back of the atrium in the normal position. Nevertheless, from the inside of the heart, two or all four pulmonary veins drain into the right atrium due to the leftward displacement of the septum primum. As an example, we report a 5-month-old patient with severe malposition of the septum primum and consequent total anomalous pulmonary venous drainage into the right atrium. The patient underwent surgical correction with resection of the malpositioned septum primum and reconstruction of a normal interatrial septation with a pericardial patch
Pulmonary artery banding.
No full textPulmonary artery banding (PAB) is a simple surgical technique to reduce pulmonary overcirculation in some congenital heart disease. In the beginning, when the use of cardiopulmonary bypass was affected by many deleterious effects, this technique played a fundamental role in the treatment of patients with congenital heart defects and an intracardiac left-to-right shunt. The use of PAB has decreased during the last two decades, due to the increasing popularity of early complete intracardiac repair, which results have shown to be superior to staged repair, even in low body weight patients. Moreover, several authors have emphasized the negative effects of PAB such as pulmonary arterial branch distortion, abnormal right ventricular hypertrophy, pulmonary valve insufficiency, sub-aortic obstruction and decreased ventricular compliance in patients with univentricular heart. For all these reasons, this procedure has been placed in the dark corner of surgery, representing, between 2002 and 2005, ∼2% of the total amount of cardiac surgery procedures. In a more recent era, PAB has been performed in instances other than classic univentricular heart, as palliation in small infants with cardiac defects with a left-to-right shunt and pulmonary overcirculation, thus gaining some time prior to a planned staged repair. Recently, the role of PAB is becoming more important in selected subsets of congenital cardiac defects: L-transposition of the great arteries, D-transposition of the great arteries, hypoplastic left heart syndrome, moderately hypoplastic left ventricle (congenitally corrected transposition of the great arteries). This renewed interest in the banding procedure is spurring all surgeons and cardiologists to find new solutions for an easier banding procedure while making debanding less traumati
A rare cause of cyanosis in neonatal age: Cor triatriatum dexter
No full textCor triatriatum dexter is an extremely rare congenital anomaly that is caused by the partitioning of the right atrium by a broad sheet of tissue due to the persistence of the right sinus venosus valve. We describe a rare case of prominent right sinus venosus valve (cor triatriatum dexter) with consequent right-to-left shunt across the patent foramen ovale in a newborn with significant cyanosis
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Left cervical and circumflex aortic arch with aberrant right subclavian artery arising from a Kommerell diverticulum: A rare vascular ring
No full textWe report a rare case of vascular ring due to a left cervical circumflex aortic arch with aberrant right subclavian artery arising from a Kommerell diverticulum. This is a very rare case of vascular ring in a newborn with stridor and stenosis of the left pulmonary artery. A cardiac catheterization and an angio-computed tomography scan were helpful to clarify the diagnosis. The surgical correction was performed with division of the arterial duct, reimplantation of the right subclavian artery, aortic and tracheal suspension, and pulmonary arterial plasty. The patient was asymptomatic at discharge and 1-year follow-up
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