PubMed Health⌕ Search

Biomedical subjects

A Fernández Ruiz

Publications and source records attributed to A Fernández Ruiz.

13 recordsLinked to original sources
PubMed2001

[Percutaneous closure of atrial septal defect with the Amplatz device: initial result and mid-term follow-up].

OBJECTIVES: Percutaneous device occlusion of atrial septal defects (ASD) is, although with some limitations, an alternative to surgical closure. The aim of this study was to evaluate the efficacy and safety of percutaneous ASD closure using the Amplatz device. PATIENTS AND METHODS: From October 1999 to March 2000, 25 children underwent transcatheter closure of ASD at a mean +/- SD age of 8.7 +/- 3.1 years (range 3-15 years) and a mean weight of 31.8 +/- 16.7 kg (range 11-84 kg). Device selection was based on the stretched diameter of the ASD using the PTA OS balloon. The device was implanted under ultrasonographic and radiological guidance. All patients showed signs of volume-overload of the right ventricle. The ASD was single (n = 21), with two separate holes (n = 2), or cribiform (n = 2). RESULTS: The median +/- SD size of the device used was 21.7 +/- 5.4 mm (range 15-36 mm). In twenty-two patients (88%) the device was successfully implanted. A repeat echocardiogram was performed the next day before discharge. Two patients underwent surgery after deployment of the device due to mitral valve dysfunction (n = 1) or residual leak (n = 1). In a patient with a two-hole ASD, another device was percutaneously withdrawn, while still attached to the delivery cable due to incomplete occlusion. CONCLUSION: a) Transcatheter occlusion with the Amplatzer device is an effective treatment for ostium secundum atrial septal defects; b) the low complication rate and the short hospitalization period makes this procedure the treatment of choice in these patients, and c) ASD which are too large, cribiform or with deficient rims may require a different approach.

Adolescent↗
PubMed2000

[Thyroid function alterations in children with congenital cardiac disease after catheterization with iodinated contrast agents].

INTRODUCTION AND OBJECTIVES: Iodinated contrast agents can block thyroid hormone synthesis. The aims of this study were: 1st) to study the incidence of thyroid function disturbances in children with congenital heart disease after cardiac catheterization, 2nd) to analyze the predisposing factors that may lead to the development of hypothyroidism after angiography, and 3rd) to determine the duration of these hypothyroidism states. PATIENTS AND METHODS: From february 1993 to April 1997 thyrotropine (TSH) and free thyroxine (FT4) serum values were analyzed before cardiac catheterization and in the two following weeks, in 99 children under three years of age, with congenital cardiac disease. Those patients who showed any postangiography increase in TSH were further evaluated by weekly measures of serum thyroid hormones and TSH until normal values were obtained or until the initiation of hormonal replacement therapy. The patients' data (age, previous exposure to contrast agents, cardiac disease, associated extracardiac malformations, renal failure, severity of illness, treatment) and the catheterism data (the dose and type of contrast and the fluoroscopy time) were included in the univariant analysis. RESULTS: 10 mUI/ml), that persisted beyond three weeks in six cases. The occurrence of multiple malformation syndromes was the most clearly associated risk factor (p < 0,01) not only in the development of postangiography hypothyroidism but also in longer hormonal dysfunction. CONCLUSIONS: Thyroid function should be tested in every patient with multiple malformation syndrome that undergo angiocardiography with iodinated contrast agents.

Cardiac Catheterization↗
PubMed1996

[Obesity and distribution of body fat. Correlation between anthropometric and tomographic data on areas at the abdominal level].

In a sample made up of 83 males and 68 females different parameters and external anthropometric indexes were compared (folds, perimeters and indexes of central fat distribution) with direct measurements of abdominal fat obtained by computerized tomography (visceral fat, subcutaneous fat and visceral/subcutaneous index). Anthropometric and tomographic differences between males and females were determined. Likewise, an analysis was made of variations in the fat pattern and subcutaneous and intra-abdominal visceral fat deposits, considering age and overweight. The results obtained in this study reveal different fat patterns for each sex, changes with age in body fat distribution, and different usefulness of external anthropometric measures in males and females to predict fat deposits and their distribution at the abdominal level.

Adipose Tissue↗
PubMed1993

[Balloon (Rashkind) atrio-septostomy in transposition of great vessels in the neonatal period].

Analysis of the balloon atrial septostomy (BA) for treatment of the transposition of the great arteries (TVG) during the neonatal period will allow the evaluation of some of the changes that have occurred in the diagnosis and therapy of this congenital cardiopathy. We performed a retrospective survey of the management, evolution complications of 24 BA as a palliative technique in TGV cases, admitted to the Neonatal Intensive Care Unit during a 5 1/2 year period. The aim of the study was to evaluate the factors that indicated a bad prognosis by comparing patients that are still alive (21) with those that are dead (3). The mean age at BA performance was 4.5 +/- 5.5 days. The biological constants prior to catheterization were normal, maintaining good oxygenation, administering prostaglandins in 80% of the patients and mechanical ventilation in 25% of the patients. BA outcome was considered as good in 68%, moderate in 12% and bad in 20% of the cases. Intra-catheterization complications, mainly hemorrhages and bradycardia, were suffered by 40% of the patients and one patient died during catheterization. We could see a progressive arterial desaturation due to the lack of efficacy of the BA. As bad post-catheterization outcome factors were found: hypotension, arrhythmia, hemorrhage, greater need of dobutamine, volume expansion and mechanical ventilation. Our principal conclusion is that, although BA has improved the prognosis of newborns with TGV, because of the progressive worsening of the patients during the months following the BA, it is necessary to perform early corrective surgery.

Catheterization↗
PubMed1993

[Long-term results of surgical management of congenital aortic stenosis].

This retrospective study and review of the literature was undertaken to assess the long term results of valvotomy in congenital aortic stenosis (AS). One hundred and seven patients, aged between 14 days and 15 years (mean: 6.2 years), were operated on between 1966 and 1989. Thirty-three cases had valvular AS, 48 discrete subvalvular AS, 10 supravalvular AS and 16 combined AS. Thirty-three patients had associated cardiac anomalies. The surgical mortality was 6.5% (3.5% in children over 2 years of age). Three patients were lost. Ninety-seven patients had a follow-up period between 6 months and 16 years (mean: 5.4 years) with an actuarial survival of 95% at the age of 15 years. There were adverse events in 39 patients: AS, aortic regurgitation, bacterial endocarditis, third-degree heart block. Thirteen patients required re-operation and 4 balloon valvuloplasty; the late mortality was 5%. We conclude that this surgery has a low surgical mortality, but must be considered as palliative in most cases.

Adolescent↗
PubMed1984

[Right cervical aortic arch: report of 2 cases, one associated with aortic coarctation].

Cervical aortic arch is a rare congenital vascular anomaly. Usually it appears as an asymptomatic pulsatile cervical mass, but symptoms of tracheal and esophageal compression may be present in 25% of the patients. About 40% of cases are associated with vascular or heart abnormalities. Angiography provides definitive diagnosis. Authors report two patients with right cervical aortic arch, one of them associated with aortic coarctation, and review 52 published cases.

Aorta, Thoracic↗
PubMedDate not supplied

Does a critical hemodynamic situation develop from right ventriculotomy and free wall infarct or from small changes in dysfunctional right ventricle afterload?

An experimental model for right ventricle free wall infarct associated with double ventriculotomy and tricuspid insufficiency was created to evaluate whether right ventricle failure can cause profound refractory heart failure or whether modifications in right ventricular afterload are more influential in this regard. In our model, the left ventricle, interventricular septum and right atrial wall were maintained intact and pulmonary banding made it possible to modify right ventricular afterload during the experiment. The results of our study showed that pure right ventricular failure does affect the hemodynamic state negatively, but it is not itself, a cause of death in dogs. A slight increase in the dysfunctional right ventricular afterload produced a profound deterioration in the hemodynamic state that required pulmonary artery debanding within no more than 10 minutes.

Animals↗