| 词汇 | example_english_artery |
| 释义 | Examples of arteryThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. A new approach to "anatomic" repair of transposition of the great arteries. Furthermore, the unknown vasodilator may flow to the systemic arteries without metabolization, and may induce systemic fistulas in similar fashion. The aorta was 2.5 cm in diameter and its branches, along with the coronary arteries, were normal. Retrospective review of the cases using these criteria identified 26 of the 27 intramural arteries with no false positive diagnoses. One patient had 2 major aortopulmonary collateral arteries and required collateral ligation at the same time. All patients had coronary changes, and six patients had giant aneurysms and severe stenotic lesions in each coronary arteries. In such patients, the inflated balloon may compress the tunnel and compromise the flow of blood into the coronary arteries. In both normal and defective hearts, however, the arterial duct is smaller than both the left and right pulmonary arteries. Such analysis should in future improve our understanding of the fate of the pulmonary arteries following the bidirectional cavopulmonary anastomosis. In preeclampsia, an inadequate placental trophoblast invasion of the maternal uterine spiral arteries results in poor placental perfusion, leading to placental ischaemia. Other investigators have noted analogous findings in the mesenteric arteries from other animals. Chronic constriction of the infrarenal aorta or of the uterine arteries themselves most consistently raised blood pressure. Reduced invasion will leave the spiral arteries vasoreactive, and thus more likely to undergo spontaneous transient vasoconstriction. Fundamental to this is the extent and depth of trophoblast invasion into uterine arteries in the early weeks of pregnancy. The inferior vena cava is grafted on to the pulmonary arteries if this was not done previously. The contraction responses to norepinephrine increase in some arteries and decrease in others during pregnancy. The main renal arteries were constricted at two hours, and at 18 hours the renal arterioles were also constricted. The pulse interval is useful when measurements are made over the carotid and limb arteries. Peptides homologous to extracellular loop motifs of connexin 43 reversibly abolish rhythmic contractile activity in rabbit arteries. A selective catheter is used to study and gain access to the internal iliac arteries, under fluoroscopic guidance and often utilising road-mapping. Distal branches of the coronary arteries traversed this indentation. Most cases with this type of anatomy have a right oblique or side-by-side relationship of the great arteries. No apparent morphological chances are observed in the coronary arteries. To accomplish this reversal, balloons are first inflated to block the common and external carotid arteries. Can we exploit understanding of the molecular organisation of elastic fibres to engineer robust replacement elastic tissues such as small-diameter arteries and ligaments? The primary pathology seems to be centered on the internal elastic lamina and this may explain why intracranial arteries are not directly affected. The distal portion of the aorta was broken away on dissection of the great arteries. Often, dextrocardia, complete atrioventricular septal defect, and transposed great arteries occur in both right atrial and left atrial isomerism. The aortic valve, ascending aorta and the two brachiocephalic arteries were normally developed. In addition, schistosomula introduced into the systemic arteries should be capable of completing their migration and maturing normally in the hepatic portal system. In the embolization of systemic-to-pulmonary collaterals, which is the main indication for this procedure in children, secondary migration occurs towards branch pulmonary arteries. Clinical profile of patients with congenital corrected transposition of the great arteries. The major risk has been embolization of the device to the pulmonary arteries or, more rarely, to the aorta. In particular, the risk of distortion of the pulmonary arteries is avoided. In addition, there is some evidence that successful dilatation is accompanied by growth of the pulmonary arteries. Fistulous communications between the ventricular cavity and the coronary arteries were only seen in the cases with muscular atresia. Categories were then further divided according to the proximal epicardial course of the three major coronary arteries. A contrast angiogram was performed in the pulmonary arteries on 13 occasions, whilst the mean number of angiograms per procedure was 3 (range 0-5). A proposed new technique for correction of transposition of the great arteries. They found that the diameters of both arteries were comparable to data of normal children which had been obtained by echocardiography. No significant pressure difference has subsequently been recognized between the right ventricle and the pulmonary arteries. Four stents were successfully placed in the pulmonary arteries and three in the aorta. The diameter of the arteries prior to implantation was 7.5+1.5 mm. The great arteries were discordantly connected, but parallel in relations with the aorta located anteriorly. Their classification attempts to take into account the origins and initial courses of the coronary arteries. The peripheral arteries, nonetheless, were still medially hypertrophied. Thus, systemic venous blood was routed to the pulmonary arteries. The descending aorta opacified via extensive collateral arteries with a gap of 2 cm between the two segments. Ventriculography showed a large hypokinetic morphologically right ventricle giving rise to both great arteries in side-by-side position with the aorta to the right. He had double outlet right ventricle, subaortic ventricular septal defect, pulmonary atresia, small patent arterial duct and confluent but small pulmonary arteries. There were two small major aortopulmonary collateral arteries providing dual supply to various individual segments. There were three collateral arteries supplying the right lung. There was delayed opacification of the pulmonary arteries. The surgical management is different in the setting of non-confluent pulmonary arteries. There were no cases of reduced flow into the side-branches of the pulmonary arteries. The interventricular grooves are shallow and identifiable only by the courses of the interventricular coronary arteries. On echocardiography, both great arteries were seen to arise from a leftward and posteriorly located, finely trabeculated ventricle. A major drawback of the technique is that only the elastic pulmonary arteries are accessible to current ultrasound catheters. Stenoses of the branches of the pulmonary arteries were enlarged with a pericardial patch in four patients. When there is only one arterial trunk, and it gives rise to both systemic and pulmonary arteries, it is defined as a common arterial trunk. A solitary arterial trunk is described when it is not possible to define the connection of the pulmonary arteries to the heart. The pulmonary arteries were resected from the back of the common trunk. The pulmonary arteries and descending aorta are also seen well. Ventricular septal defects, patentcy of the arterial duct, anomalous pulmonary venous connection and stenosis of the pulmonary arteries were also reported. Patients having transannular patches, therefore, were classified into two groups according to the velocities of forward flow in the pulmonary arteries during late diastole. Not all patients with interruption between the carotid and subclavian arteries have the deletion, and some, albeit very few, with interruption at the isthmus do. One month later, cardiac catheterization showed a substantial left-to-right shunt across the ventricular septal defect, with improvement in the size of the pulmonary arteries. Besides these, aneurysms are seen in the transition from muscular to elastic segments in such arteries as the celiac and mesenteric. Similar aneurysms are also seen in the large muscular arteries themselves outside the major organs. Postoperative injection at the site of the anastomosis between the homograft and the pulmonary arteries shows dilatation of the homograft with pulmonary regurgitation. Thrombosis within dilated arteries may then lead to myocardial infarction. Approximately 15-25% of children who acquire the disease develop aneurysms of one or more coronary arteries following the acute illness. The precise supply varies from case to case but, generally, only two-thirds of the parenchyma is connected to the central pulmonary arteries. In patients with transposition of the great arteries, pulmonary flow can be monitored by oximetry. A three-dimensional model of serial cross sections of the coronary arteries shows the inner surface three-dimensionally through the outer surface. The proximal portions of the sixth arches contribute to the pulmonary arteries and the distal portions of the left sixth arch becomes the arterial duct. In the majority of arteries with intimal thickening, the proliferating tissue consisted of myxomatous fibroblastic tissue. In the group co-existing with central pulmonary arteries, the goal ofunifocalization is to incorporate the central pulmonary arteries. Of 11 patients not yet repaired, 2 are considered irreparable because of inadequate distal pulmonary arteries, 3 await unifocalization, and 6 are candidates for repair. Moreover, it may augment the growth of the pulmonary arteries. Five patients without systemic-to-pulmonary collateral arteries underwent repair at the age of one to six [mean 3] months old, using transannular patching with a monocusp. Moreover, two aberrant arteries originating from the descending aorta were imaged clearly. We endorse their view with regard to the emphasis on plication of the pulmonary arteries. Also, additional procedures, such as balloon dilatation of stenotic pulmonary arteries or occlusion of systemic-to-pulmonary or venous-to-left atrial channels can be performed if required. Recent investigations showed that cells from the cardiac neural crest contribute to the formation of the arch arteries and the media of the arch. A theoretical advantage is of creating something closer to laminar flow and thus less energy wasted in conveying systemic venous blood to pulmonary arteries. Second, we hypothesized that iron deficient arteries would be larger and more distensible than in iron replete controls. The primary source of aqueous is blood flowing through the arteries of the ciliary body. The only non-survivor of a biventricular, third stage procedure died of right heart failure after prolonged cardiopulmonary bypass for extensive reconstruction of the pulmonary arteries. In three cases of pulmonary atresia with aortic-to-pulmonary systemic collateral arteries, unifocalization was performed through a thoracotomy incision. The progressive occlusion of major arteries has been reported and is associated with poor prognosis. In a patient with a "mild" coarctation, and no formation of collateral arteries, we would expect the risk to be higher - but how high? Coronary arteries anomalies may be part of complex congenital malformation, of the heart or be an isolated defect. The distribution of the lesions was diffuse and was most striking in the intraacinar arteries (diameters of < 150 microns). The long term success depends on the continued patency of the coronary arteries and on preservation of left ventricular function. In conclusion, intermediate and longer term results confirm that the arterial switch procedure is the operation of first choice for transposition of the great arteries. Mortality in reoperations may be associated with small pulmonary arteries. The size of the proximal coronary arteries was normal. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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