| 词汇 | example_english_tricuspid-valve |
| 释义 | Examples of tricuspid valveThese 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. Alternatively, a patch can be placed by sewing the stitches exclusively in the straddling leaflet of the tricuspidvalve. The muscular ventricular septal defect was covered by a membranous transformation of the septal leaflet of the tricuspidvalve. The tricuspidvalve had thickening and tethering of its leaflets without downward displacement. From a clinical standpoint, mitral incompetence and/or stenosis may obscure the lesion afflicting the tricuspidvalve. The tricuspidvalve measured 1.2 cm in diameter. This longitudinal plication of the right ventricle also serves to reduce the diameter of the annulus of the tricuspidvalve. The cardiac repair was sound but there was partly organized thrombus adherent to the tricuspidvalve and ventricular septum patch. Opened tricuspidvalve showing shortened tendinous cords, but no formation of a muscular arcade. Another unusual finding was the reversal of diastolic flow across the tricuspidvalve. The pulmonary valve to moderator band/tricuspidvalve ratio was < 1 in all patients (0.520.71). It was associated with a mitral (n=18) and tricuspidvalve repair (n=8). This maneuver results in producing an anterior compartment of the pulmonary venous chamber which conducts pulmonary venous blood to the tricuspidvalve. The heart showed thickened leaflets of the tricuspidvalve with normal annular insertions. The normal tricuspidvalve has septal, antero-superior, and mural or inferior leaflets. Note the dysplastic and hypoplastic tricuspidvalve, and the intact ventricular septum. At operation the grossly regurgitant left-sided morphologically tricuspidvalve was replaced by a "top-hat" inverted aortic valve homograft. The atrium receiving the systemic veins appeared to be a solitary chamber, connected with the large morphologically right ventricle via a wide tricuspidvalve. Surgical repair of straddling and overriding tricuspidvalve. Note the tendinous cords from the tricuspidvalve connecting to a single papillary muscle. Two patients required reoperation for progressive tricuspidvalve insufficiency 11.7 and 16.8 years after operation, respectively. No tension apparatus of the tricuspidvalve was identified. Preoperative tricuspidvalve insufficiency was constant and stenosis in 24%. If necessary, the attachments of the tricuspidvalve are fixed on the right aspect of the subaortic tunnel but, generally, they have no excessive mobility. The opening of the ventricular septal defect was immediately above the medial papillary muscle of the tricuspidvalve. Postoperatively electrocardiography showed excellent tricuspidvalve function and an intact atrial septum in all patients. Only in one normal subject did the regurgitant flow in the tricuspidvalve occupied die whole systole. The pulmonary valve is then sized through the tricuspidvalve and, if adequate, then no approach through the pulmonary trunk is required. The septal malalignment in hearts with straddling tricuspidvalve distorts the arrangement of the atrioventricular conduction axis. Then we removed the band and, finally, attempted unsuccessfully to replace the tricuspidvalve. The original tricuspidvalve on that side had been surgically resected and only fragments remained. The hinge of the septal leaflet of the tricuspidvalve, crossing the membranous septum, divides this part of the septum into atrioventricular and interventricular components. When coarctation of the aorta occurs in congenitally corrected transposition, it is always wise to search carefully for abnormalities of the tricuspidvalve. In the apical four-chamber view, a thin right atrial membrane was suspected close to the tricuspidvalve. The tricuspidvalve was normal in appearance and no insufficiency was detected with a saline leakage test. The patient underwent the double-switch procedure with the intention of unloading the morphologically right ventricle and the malformed tricuspidvalve. During inspiration, the velocity of forward flow across the tricuspidvalve was relatively normal, while during expiration there was diastolic reversal of flow. The right ventricle was hypoplastic and the tricuspidvalve was dysplastic. Closure of atrial septal defects was performed in 90%, tricuspidvalve reconstruction in 72%, and 18% received a prosthetic valve. When re-admitted three months later, in congestive cardiac failure, the vegetation was no longer present, but the septal leaflet of the tricuspidvalve was destroyed. The one child required tricuspidvalve repair because of septal leaflet destruction with associated intractable right-sided cardiac failure. We reportfiveinfants and children with tricuspidvalve endocarditis, whose ages ranged from four months to four years. The tricuspidvalve is diffusely thickened with fusion of the commissures and fused and shortened tendinous cords. This is particularly significant when assessing lesions such as straddling tricuspidvalve or atrioventricular septal defect. Tissue tags derived from the leaflets of the tricuspidvalve are often related to the borders of these holes, and are seen in several planes. For right ventricular diastolic filling, the sample volume was located between the tips of the leaflets of the tricuspidvalve. In one patient, the tricuspidvalve was otherwise normal; in the other two the leaflets and cords were also thickened. A muscle bar separated the leaflets of the pulmonary and tricuspidvalve. Reoperation rate was 13% for right ventricular failure (2/40) or tricuspidvalve insufficiency (3/40). There is corresponding variation in the diameter of the tricuspidvalve. The leaflets of the tricuspidvalve are of normal thickness and show no signs of dysplasia. Obstruction of the right coronary artery has been demonstrated after radiofrequency current application at the tricuspidvalve annulus in an animal model. The tendinous cords of the tricuspidvalve were also abnormal, a finding, to the best of our knowledge, not reported before. At the time of right atrial injection, no contrast crossed the tricuspidvalve, while there was a large right-to-left shunt at the atrial level. The tricuspidvalve was morphologically normal, with an annulus of normal diameter. Both atrioventricular valves were dilated, and there was slight thickening of the leaflets of the tricuspidvalve. Tricuspid regurgitation as a manifestation of an isolated congenital anomaly of the tricuspidvalve is rare. This frame shows normalproximal insertion of the tricuspidvalve. The anomalous muscle bundle was resected through the tricuspidvalve while the patient was being cooled on bypass. Of the 15 patients with congenital lesions of the tricuspidvalve, 10 (66.6%) had also rheumatic disease of the valve. Echocardiographic assessment showed an intact atrial septum in all patients, and tricuspidvalve function was good to excellent in most. A grade is assigned according the most severe form of dysplasia present at some part of the tricuspidvalve. A puzzling haemodynamic picture associated with some rare congenital malformations of the right ventricle and tricuspidvalve. None of these patients had coarctation of the aorta or parachute malformation of the tricuspidvalve. For example, there are 36 possible terms for congenital anomalies of the tricuspidvalve, with a further six qualifying terms for additional detail. The septal leaflet of the tricuspidvalve is usually tethered to the enlarged postero-medial papillary muscle of the mitral valve. In the same way, abnormal attachments of the tricuspidvalve on the outlet septum were managed, without significant complications, by the "flap" maneuver. This is associated with straddling and overriding of the tricuspidvalve. Likewise, an involvement of the tricuspidvalve with regurgitation was seen only in those with congestive failure. When the tricuspidvalve straddles and overrides the ventricular septum, the atrioventricular node is formed at the point where the septum meets the atrioventricular junction. The annulus of the tricuspidvalve and length of the right ventricular inlet were measured in the four-chamber view. Otherwise, the leaflets and cords of the tricuspidvalve did not appear dysplastic. Frequently the involvement of the tricuspidvalve is not due to the disease in itself, but is secondary to pulmonary hypertension. When found, they may allow for a left ventricular-to-right atrial shunt through deficiencies in the septal leaflet of the tricuspidvalve. At operation the tricuspidvalve was morphologically normal with a very dilated annulus and stretched leaflets. At cardiac catheterization, angiography showed a relatively small right ventricle and a stenotic tricuspidvalve. Eight days post-operation the girl was discharged without any residual intracardiac shunt and with normal function of the tricuspidvalve and right ventricle. Patient 6 had a destroyed pulmonary valve, while patient 5 had a perforation of the antero-superior leaflet of the tricuspidvalve. The normal structure of the tricuspidvalve, pulmonary valve, and pulmonary arteries, revealed by crosssectional echocardiography, ruled out tricuspid atresia and pulmonary stenosis. 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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