1/335. Successful use of high frequency oscillatory ventilation for pneumomediastinum.An infant with pneumomediastinum due to mechanical ventilation was successfully treated using high frequency oscillatory ventilation (HFOV). The 3-month-old male had undergone ligation of a patent ductus arteriosus and suffered from barotraumatic pneumomediastinum in the postoperative period. Computed tomography of the chest confirmed the diagnosis. While using conventional mechanical ventilation the respiratory failure worsened. HFOV was instituted and the patient improved. A lower airway pressure by this mode of ventilation provided significant advantages in the patient with an air leak. He was subsequently extubated and discharged home.- - - - - - - - - - ranking = 1keywords = patent (Clic here for more details about this article) |
2/335. Intravascular ultrasound imaging of a patent ductus arteriosus in an adult.A small patent ductus arteriosus (PDA) is compatible with a normal life span. A non-restrictive PDA may present with signs of heart failure, supraventricular arrhythmia's, bacterial endocarditis or endarteritis later in life. Fewer than 50% of patients, including those with small shunts, are symptomatic by the age of 50. Considering that 40% of patients with PDA's will die before the age of 45 as a result of bacterial endocarditis or heart failure, closure of the PDA is recommended. Exceptions are patients with a nondilated heart, a right-to-left shunt, or age greater than 60 years old. Because of the wider use of echocardiography, especially transesophageal echocardiography, many PDA's are now detected incidentally in patients without symptoms.- - - - - - - - - - ranking = 5keywords = patent (Clic here for more details about this article) |
3/335. The use of transesophageal echocardiography to evaluate the effectiveness of patent ductus arteriosus ligation.The ligation of patent ductus arteriosus (PDA) is a comparatively easy operation, but some complications are possible. The most common complication is incomplete ligation of the PDA; others include inadvertent ligation of the descending aorta or left pulmonary artery, transient rise in systemic blood pressure and increased left ventricular afterload, and acute right heart failure due to pulmonary hypertension. The completeness of the PDA ligation is usually determined only by the operating physician's experience, including the use of an esophageal stethoscope or a finger on the lesion to feel for vibration. These methods sometimes fail to detect an incomplete ligation. With transesophageal echocardiography (TEE), we have monitored the entire course of the PDA ligation directly without interrupting the surgical procedure, and precisely determined the completeness of the ligation. We also expect that TEE will enable us to avoid other complications as well.- - - - - - - - - - ranking = 5keywords = patent (Clic here for more details about this article) |
4/335. High origin of the right coronary artery with congenital heart disease.We encountered a case of anomalous high origin of the right coronary artery associated with ventricular septal defect and patent ductus arteriosus. The right coronary artery originated from the distal part of the ascending aorta resulting in unsuccessful induction of cardiac arrest by cardioplegia. We describe this rare case with anomalous origin of the right coronary artery.- - - - - - - - - - ranking = 1keywords = patent (Clic here for more details about this article) |
5/335. Thrombotic occlusion of the main stem of the left coronary artery in a neonate.Thrombotic coronary arterial occlusion, and myocardial infarction, are rare in the newborn. We report such a happening presenting shortly after birth with cardiogenic shock, no left ventricular output and a systemic circulation dependent on flow from a patent arterial duct.- - - - - - - - - - ranking = 1keywords = patent (Clic here for more details about this article) |
6/335. aneurysm of the pulmonary trunk with patent arterial duct.We present a 14-year-old female with a massive aneurysm of the pulmonary trunk occurring secondary to bacterial endocarditis of the patent arterial duct. Echo Doppler imaging, magnetic resonance and angiography confirmed the diagnosis. On intermediate follow-up after surgical correction, the echo studies and cardiac catheterization disclosed no residual lesions. The patient is now asymptomatic.- - - - - - - - - - ranking = 5keywords = patent (Clic here for more details about this article) |
7/335. Char syndrome, an inherited disorder with patent ductus arteriosus, maps to chromosome 6p12-p21.BACKGROUND: Patent ductus arteriosus (PDA) is a relatively common form of congenital heart disease. Although polygenic inheritance has been implicated, no specific gene defects causing PDA have been identified to date. Thus, a positional cloning strategy was undertaken to determine the gene responsible for the Char syndrome, an autosomal dominant disorder characterized by PDA, facial dysmorphism, and hand anomalies. methods AND RESULTS: A genome scan was performed with 46 members of 2 unrelated families in which the disease was fully penetrant but the phenotype differed. Significant linkage was achieved with several polymorphic dna markers mapping to chromosome 6p12-p21 (maximal 2-point lod score of 8.39 with D6S1638 at theta=0.00). Haplotype analysis identified recombinant events that defined the Char syndrome locus with high probability to a 3. 1-cM region between D6S459/D6S1632/D6S1541 and D6S1024. CONCLUSIONS: A familial syndrome in which PDA is a common feature was mapped to a narrow region of chromosome 6p12-p21. Additional analysis with other families and polymorphic markers as well as evaluation of potential candidate genes should lead to the identification of the Char syndrome gene, which will provide insights into cardiogenesis as well as limb and craniofacial development.- - - - - - - - - - ranking = 4keywords = patent (Clic here for more details about this article) |
8/335. Aortic obstruction caused by device occlusion of patent arterial duct.A 2 year old girl is reported in whom deployment of the Amplatzer ductal occluder caused significant aortic obstruction, requiring surgical removal of the device. This case emphasises the need for careful echocardiographic and angiographic assessment of the position of the Amplatzer ductal occluder before and after detaching the device from its delivery system, with particular emphasis on the position of the aortic retention ring. Careful assessment of ductal anatomy must guide case selection.- - - - - - - - - - ranking = 4keywords = patent (Clic here for more details about this article) |
9/335. Successful transcatheter closure of a patent ductus arteriosus: using two Gianturco coils in a 41-year-old woman. A case report.Patent ductus arteriosus (PDA) is a form of congenital heart disease uncommonly diagnosed in adult patients. Transcatheter closure of PDA has been widely used in children. However, the experience is limited in adults especially with use of Gianturco coils. The authors describe a case of successful transcatheter closure of a PDA, incidentally diagnosed in a 41-year-old woman, by successively deploying two coils by a transarterial approach. No residual shunting was seen angiographically after the procedure. A literature review of similar procedures in adult patients is discussed.- - - - - - - - - - ranking = 4keywords = patent (Clic here for more details about this article) |
10/335. Simultaneous stent implantation for coarctation of the aorta and closure of patent ductus arteriosus using the Amplatzer duct occluder.We report on a 13-year-old girl with coarctation of the aorta and patent ductus arteriosus who underwent successful simultaneous stent implantation for the coarctation and catheter closure of the ductus using an Amplatzer duct occluder.- - - - - - - - - - ranking = 5keywords = patent (Clic here for more details about this article) |
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