ostium

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ostium

[′äs·tē·əm]
(biology)
A mouth, entrance, or aperture.
References in periodicals archive ?
a) Occlusion of the ostial region of LAD, (b) Wraparound LAD LAD: left anterior descending coronary artery
Followup endoscopic examination confirmed maintenance of ostial patency, and she has remained infection free for 18 months.
6 The ostial shape was discovered to be a determinant of clinical significance.
En ACAOS izquierdo la intervencion quirurgica ofrece beneficios importantes; en centros especializados en el tratamiento de esta enfermedad se usan diferentes procedimientos; la experiencia favorece la tecnica del unroofing, en la que se libera el segmento intramural de la coronaria y se crea un neoorificio en el seno correcto; tambien es posible la reimplantacion ostial, si se remueve el segmento intramural; no se recomienda la revascularizacion con puente coronario de arteria mamaria interna, dado el flujo competitivo y la hipoplasia del injerto si la estenosis no es critica, que es usualmente el caso (33,34).
Svendsen, "Recurrence of pulmonary vein conduction and atrial fibrillation after pulmonary vein isolation for atrial fibrillation: a randomized trial of the ostial versus the extraostial ablation strategy," American Heart Journal, vol.
The angiography showed LMCA and ostial Cx stenosis, and the OCT revealed a massive, organized thrombus in the LMCA involving the ostium of the Cx.
Sinonasal inflammatory disease with sinus ostial obstruction is a very common cause of an opacified paranasal sinus.
TEE revealed LA with light spontaneous echocardiographic contrast (SEC), low ostial emptying velocities <40cm/sec (Figure 1) and unilobar LAA with thrombus (2cm/1.
After lot of efforts, aortography was performed, LSA ostial suboclusion was demonstrated (Figure 1.
Su manejo es quirurgico, asociado a una terapia de anticoagulacion en los casos de embolismos recurrentes, masas moviles prominentes y oclusion ostial coronaria.
In the revisional study on the subfamily Striglinae, Whalley (1976) revalidated Sonagara as a monobasic genus, distributed in India, Sikkim, Formosa [Taiwan], Borneo and Hainan, and enumerated the generic features as follows: eyes without interfacetal hairs; fore tibia with tubercle, hind tibia with 2 pairs of spurs; tarsi each with rows of spines; forewing with M1 to R3 separately from cell; hindwing with Sc+R1 and R3 approaching but not touching; uncus modified with 2 lateral forks; gnathus modified, without peg-like teeth; valve with prominent apical sacculus process; female with double frenulum, sometimes triple; ostial plate relatively simple; signum in bursa.
In this case, the authors performed transthoracic echocardiography to rule out aortic dissection, involving the arch and coronary ostial narrowing before and during surgery.