Alfonso Buendía

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We prospectively examined whether surgical treatment of secundum atrial septal defects (ASDs) in patients > or =40 years old improves their long-term clinical outcome. Surgical treatment of secundum ASDs in adults > 40 years old is a subject of controversy because of the perception of good long-term clinical outcomes in patients with unrepaired ASDs and the(More)
BACKGROUND Although good prognosis and clinical long-term outcome have been commonly reported in minimally symptomatic adult patients with ASD, this information has been based on studies with a relatively small number of adult patients. We studied unoperated patients aged over 40 years to define the patterns of presentation, anatomical characteristics,(More)
Four cases of crossed atrioventricular connections are described. All of them were diagnosed at cardiac catheterization by angiocardiography and one was examined pathologically. Two possessed situs solitus, one with concordant connections and the other with discordant connections; the other had two situs inversus, both of them with concordant connections.(More)
OBJECTIVES To compare the short- and mid-term outcomes of surgical (SUR) vs. transcatheter closure of secundum atrial septal defect (ASD) using Amplatzer septal occluder (ASO) in adults with a very similar spectrum of the disease; and to identify predictors for the primary end point. DESIGN Single-center, concurrent comparative study. Surgically treated(More)
Two cases of double-outlet left ventricle with ventricular septal defects and pulmonic stenosis are described. Both had atrial situs solitus, one with concordant and another with discordant atrioventricular connections. Considering the clinical behaviour of the malformation, the diagnosis is difficult. Although the echocardiographic findings suggest the(More)
tensin, vasopressin and methoxamine on cardiac function and blood flow distribution in conscious dogs. Am J Physiol 231: 1979, 1976 24. Landymore RW, Murphy DA, Kinley CE, Parrott JC, Moffit EA, Longley WJ, Qirbi AA: Does pulsatile flow influence the incidence of postoperative hypertension? Ann Thorac Surg 28: 261, 1979 25. Watkins WD, Moss J, Lappas DG,(More)
Congenital absence of pulmonary valve leaflets is an uncommon condition usually associated with ventricular septal defect and an obstructive pulmonary valve ring. Twenty-one patients with these malformations are described. Twenty had an associated ventricular septal defect with ventriculoarterial concordance, and one also had transposition of the great(More)
Knowledge of the long-term outcome in unoperated adult patients with Ebstein anomaly is limited, and the therapeutic approach is still controversial. We studied unoperated adult patients with Ebstein anomaly to define the patterns of presentation, anatomic characteristics, outcome, and predictive factors for survival. Seventy-two unoperated survivors of(More)
We report our experience in radiofrequency catheter ablation between April, 1992 and December, 1998, in which we treated 287 patients less than 18 years of age (mean 14.3 +/- 3.1 years) with supraventricular tachycardia. Accessory, pathways were the arrhythmic substrate in 252 of the patients (87.8%), the patients having a total of 265 accessory pathways.(More)