(1) Supracoronary graft insertion was used in the first nine patients, while the remaining patients were treated by radical repair using a composite graft and reimplantation of the coronary ostia.
(2) A postmortem coronary angiography technique employing aortic injection of contrast medium and double contrast visualization of the aortic bulb and large epicardial coronary trunks was applied to the study of coronary ostia in a series of 124 deaths from acute myocardial infarction and a series of 89 sudden deaths without recent infarction and 42 violent deaths.
(3) Suturing of these ostia is occasionally difficult because of an unyielding calcified vessel wall.
(4) Decreases in branch ostia were significantly more frequent in branches with preexisting branch disease (14 of 52, 27%) compared to branches with normal pre-PTCA ostia (2 of 45, 4%; p less than or equal to 0.01).
(5) Abnormal ostia: Ectopic ostia with anterior, posterior or lateral displacement (11 cases).
(6) Ectopias of the ostia ureteris are generally accepted to be divided into intra- and extravesical ones.
(7) The medial cartilages of the ostia were not directly involved in bringing about closure of the sphincter.
(8) The model consisted of a rigid cavity, filled with a viscous liquid, with three outflow ports: a set of paired outflow ports (fallopian tube ostia) and an additional single outflow port (cervical os).
(9) We describe a new technique utilizing warm bone wax to occlude these ostia.
(10) Success depends on the use of newly developed instruments, including the endoscopes, that allow one to enlarge the natural drainage ostia of the involved sinuses.
(11) The surgical refinements that evolved include (1) a more distal division of the ascending aorta, (2) a punch technique for reimplantation of the coronary arteries in a medially rotated position, approximating the commissure, and superior to the upper border of the sinus of Valsalva, and (3) removal of left coronary ostia by incision down from the transected site to include a button of aortic wall, avoiding the free margin of the aorta and patch enlargement of the neopulmonary artery.
(12) Then membranous obstruction in the right hepatic vein ostia was resected.
(13) Around the intercostal ostia peak frequency of plaques is found just proximal to the lower lip of the ostia.
(14) Two cases of distal right coronary artery (RCA) bifurcational stenoses involving ostia of the posterolateral (PLA) and the posterior descending (PDA) branches in patients who underwent successful coronary angioplasty using a double-wire technique are reported.
(15) Eight patients with advanced disease of the aortic root involving the origins of the coronary arteries have been operated on with resection of the entire aortic root including the ostia of the coronary arteries.
(16) In Group 1 dogs (n = 6), three anode sites (superior and inferior venae cavae ostia and mid-right atrium) were tested with graded energy shocks to determine the lowest effective cardioversion energy at each anode position.
(17) One of the most startling incidents in the increasingly bloody turfwar in Ostia came in November 2011 when two criminals, Giovanni Galleoni and Francesco Antonini, were shot dead in the town centre in broad daylight.
(18) The localization of sudanophilic plaques around the intercostal ostia and the origin of the superior mesenteric and coeliac artery was examined in 38 human aortae.
(19) On the basis of pathological features, the following three types of coronary artery lesions can be distinguished: type 1, stenosis or occlusion of the coronary ostia and the proximal segments of the coronary arteries; type 2, diffuse or focal coronary arteritis, which may extend diffusely to all epicardial branches or may involve focal segments, so-called skip lesions; and type 3, coronary aneurysm.
(20) The majority of ectopic ostia were located in the right sinus of Valsalva.
Ostium
Definition:
(n.) An opening; a passage.
Example Sentences:
(1) A block of tissue bounded by the ostium of the coronary sinus, the pars membranacea, the septal leaflet of the tricuspid valve and the atrial and ventricular septa is removed.
(2) Depending on local anatomical properties duplex scanning failed to make a decision about the state of the ostium of the vertebral artery in 24% of the cases.
(3) In the hearts of normal weight (195 to 300 gm) the Thebesian valve covered the ostium of the coronary sinus an average of 41%, with complete coverage in 20%.
(4) Operative intervention showed a dysplastic bicuspid aortic valve with a membrane that covered the left coronary ostium.
(5) The intervention was undertaken for restenosis of the left venous ostium in 255 and iatrogenic mitral insufficiency in 20 patients.
(6) The left coronary ostium was reimplanted with Carrel patch method and the right coronary artery was bypassed with the saphenous vein graft.
(7) Technical problems encountered with the use of these catheters included instability of the right Judkin's catheter in the right coronary ostium owing to high torquability, streaming of contrast during left coronary injections, and difficulty entering the left ventricle with a pig-tail catheter.
(8) The proximal topography of the left common carotid artery ostium is a useful sign in the diagnosis of this kind of abnormality.
(9) Four cases of atrial septal defect, "ostium secundum", associated with pulmonary hypertension and congestive heart failure in children under the age of two years are reported.
(10) On the basis of this study the area of the right coronary ostium appears to be a bottleneck with regard to an adequate blood supply to a hypertrophic myocardium.
(11) Frequently a contrast medium reflux occurs out of the coronary ostium into the aorta.
(12) The data show that coronary sinus blood flow changes from 23 to 68 ml X min-1 per cm catheter movement, the nearer the ostium the greater the change.
(13) Another facilitating factor which is discussed is that blowing the nose may catch tenacious mucus which has partly passed through the ostium by the ciliary activity in the sinus.
(14) There were 69 SBs: 43 with severe ostium stenosis (type A); 6 with severe non ostial stenosis (type B); and 20 with no or slight nonostial stenosis (type C).
(15) The following abnormalities were found at operation: a disrupted right coronary cusp, a torn chorda of the anterior mitral leaflet, a dilated tricuspid annulus, and an intimal tear on the aortic root near the right coronary ostium that had developed into an aneurysm of the sinus of Valsalva.
(16) Furthermore, the method is useful to evaluate the optimal therapy to restore ventilation in the case of an obstructed ostium demonstrated before and after surgical opening in the inferior meatus.
(17) The transurethral dehiscence of the ostium is a therapeutic method which causes the spontaneous passage of incarcerated intramural ureteroliths.
(18) The sinus cavity was connected with the nasal cavity through an ostium.
(19) It is felt that the sphenoid mucocoele developed as a result of occlusion of the sinus ostium by scarred mucosa following radiotherapy.
(20) The left coronary artery had an anomalous origin; the left descending coronary artery originated from an independent ostium located at the right Valsalva sinus, the circumflex artery had its origin at the same ostium as the right coronary artery.