ABSTRACT
Relatamos o caso de um neonato portador de cardiopatia congênita cianótica canal-dependente com implante de stent no canal arterial. Uma modificação do stent realizada pelo intervencionista, criando-se um ângulo em seu corpo, possibilitou o avanço do stent da aorta até o canal arterial, e seu subsequente implante nesse sítio.
We report the case of a neonate with ductus-dependent cyanotic congenital heart disease treated by stenting in the ductus arteriosus. A physician-modified stent angulation enabled the advance of the stent from the aorta to the ductus arteriosus and its subsequent implantation.
Subject(s)
Humans , Infant, Newborn , Ductus Arteriosus/physiopathology , Heart Defects, Congenital , Infant, Newborn , Stents , CyanosisABSTRACT
Resumen: Se presenta el caso clínico de una mujer de 25 años asintomática en cuyo ecocardiograma se descubre la presencia de un Ductus Arterioso persistente. Se analiza la fisiopatología y el manejo de esta situación.
Abstract: The clinical case of an asymptomatic 25 year old woman whose echocardiogram showed a patent ductus arteriosus is presented. The pathophysiology and management are discussed.
Subject(s)
Humans , Female , Adult , Ductus Arteriosus/surgery , Ductus Arteriosus/physiopathologySubject(s)
Humans , Heart Defects, Congenital/physiopathology , Ductus Arteriosus/physiopathology , Eisenmenger Complex/diagnosis , Eisenmenger Complex/therapy , Pulmonary Valve Stenosis/diagnosis , Heart Septal Defects, Ventricular/diagnosis , Heart Septal Defects, Ventricular/physiopathology , Heart Septal Defects, Ventricular/therapyABSTRACT
Se revisa el ductus arteriosus con base en la experiencia de 15 años, incluyendo 5 años de manejo del ductus en el prematuro. Se analiza en forma separada el ductus en el recién nacido a término y el ductus en el prematuro desde la embriopatogénesis, siguiendo por las características morfológicas, clínica, exámenes paraclínicos (haciendo énfasis en la importancia del estudio ecocardiográfico) manejo médico y quirúrgico señalándose que en caso de cirugía solo excepcionalmente será necesario el cateterismo cardíaco, pues con un estudio clínico muy preciso, apoyados por el ECG, Rx de tórax y un completo estudio ecocardiográfico, el paciente puede ser llevado a cirugía
Subject(s)
Humans , Infant, Newborn , Infant , Child, Preschool , Child , Fetal Heart/physiopathology , Ductus Arteriosus/physiopathology , Fetal Heart/surgery , Ductus Arteriosus/surgeryABSTRACT
The ultrastructure of the alveolar-capillary membrane [ACM] was studied in twelve children with patent ductus arteriosus [PDA], divided into three subgroups according to their ages, and in three control children complaining of non cardiac localised chest lesions. Lung biopsies were obtained at the time of thoracotomy. The results revealed definite thickening of the air-blood barrier in the study biopsies. The degree of thickness increased with age. The causal factors for thickening of ACM in children younger than two years, were mainly due to interstitial oedema and mesenchymal cellular deposition. Some degree of elastic and collagen proliferation was noticed as well. In biopsies of old children, the main factor was the massive collagen deposition. The basement membranes of both endothelial and epithelial cells were thin and did not share in membrane thickness. The endothelial cells revealed no changes at age younger than two years, while in old children they exhibited excessive pinocytosis, cytoplasmic bleb formations filled with plasma exudate and abnormal lipid deposition. The alveolar epithelium revealed, in old children, predominance of pneumocyte type II cells to replace the injured type I cells. The findings of the present study constituted a strong motive for early interference to close the ductus whenever its diagnosis becomes certain