نتایج جستجو برای: dactus arteriosus
تعداد نتایج: 5588 فیلتر نتایج به سال:
Elucidating cardiac evolution has been frustrated by lack of fossils. One celebrated enigma in cardiac evolution involves the transition from a cardiac outflow tract dominated by a multi-valved conus arteriosus in basal actinopterygians, to an outflow tract commanded by the non-valved, elastic, bulbus arteriosus in higher actinopterygians. We demonstrate that cardiac preservation is possible in...
Real-time cross-sectional echocardiographic studies of the main coronary arteries were performed in 20 normal subjects, 12 patients with patent ductus arteriosus and 14 patients with coronary artery fistula in whom the diagnosis was established by angiography. In 12 patients, the coronary artery that formed the fistula was dilated: The right coronary artery was involved in eight and the left co...
To expand the search for central pulmonary arteries in six patients with absence of cardiac-pulmonary continuity, computerized axial tomography (CAT) of the chest was performed. The CAT scans were compared with previous arteriograms and pulmonary vein wedge angiograms. Three patients with type IV truncus arteriosus were studied, and none had a central, right or left pulmonary artery on CAT scan...
PURPOSE Here, we report two cases of early-onset post-nephrectomy renal arteriovenous fistula who were successfully managed by implantation of patent ductus arteriosus occluders. CASE REPORT Both patients were female, aged 38 and 36 years. They received left renal nephrectomy 9 and 6 months, respectively, with a complaint of chest congestion and dyspnea before admitting to our center. Compute...
The association of a right aortic arch with an ipsilateral patent ductus arteriosus is rare, especially when there are no other intracardiac anomalies. We report three female patients aged 26, 35 and 9 years with this combination in whom previous attempts at surgical closure by thoracotomy and sternotomy were unsuccessful and who subsequently underwent successful percutaneous closure of the def...
Background: Standard medical treatments for patent ductus arteriosus (PDA) closure are, including indomethacin/ibuprofen and surgical ligation. Nowadays, a new strategy to close PDA is the use of paracetamol. The present study aimed to describe the use of intravenous (IV) paracetamol for PDA closure in neonates who present a contraindication to ibuprofen or ibuprofen failure with no possibility...
BACKGROUND Percutaneous closure of large persistent ductus arteriosus using the Amplatzer duct occluder is an alternative to surgery. However, this device is not recommended in infants weighing less than 6 kg. AIM To evaluate the safety and effectiveness of this procedure in low-body-weight infants. METHODS We reviewed retrospectively data for infants weighing less or equal to 6 kg who unde...
Takahashi, Yasushi, Christine Roman, Sylvain Chemtob, Mary M. Tse, Emil Lin, Michael A. Heymann, and Ronald I. Clyman. Cyclooxygenase-2 inhibitors constrict the fetal lamb ductus arteriosus both in vitro and in vivo. Am J Physiol Regulatory Integrative Comp Physiol 278: R1496– R1505, 2000.—Nonselective cyclooxygenase (COX) inhibitors are potent tocolytic agents; however, they also have adverse ...
BACKGROUND Early fluid and electrolyte imbalances may be associated with an increased risk of bronchopulmonary dysplasia. OBJECTIVE We sought to establish an association between fluid and electrolyte balance in the first week of life and the risk of bronchopulmonary dysplasia. METHODS Clinical charts of 205 neonates <32 weeks gestational age and/or <1,250 g birth weight (admitted to our NIC...
T HE most frequent cardiovascular anomaly following maternal rubella is patent ductus arteriosus.1-0; The majority of patients with typical signs of patent ductus arteriosus are treated surgically without special diagnostic studies such as cardiac catheterization and angiocardiography. In these individuals residual systolic murmurs may persist and are often attributed to mild pulmonary valvular...
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