FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2147054585> ?p ?o ?g. }

• W2147054585 endingPage "718" @default.
• W2147054585 startingPage "717" @default.
• W2147054585 abstract "Accurate preoperative assessment of the aortic annulus dimension is crucial for the success of transcatheter aortic valve implantation (TAVI). All the available imaging modalities, however, have some weak points, and the ‘gold standard’ to be used is still under debate. In this context, the recent work by Dr Blanke and coworkers is a commendable attempt to develop a standardized, easy to reproduce method for the identification and measurement of the aortic annulus [1, 2]. A very interesting finding of this study is the close correlation found between the preoperative cross-sectional area (CSA) of the virtual ring passing through the nadir of the three aortic cusps and the postoperative CSA. This observation would suggest that preoperative determination of the CSA could help in predicting the final form and size of the aortic annulus in most TAVI patients [1]. However, the behaviour of the aortic root and aortic annulus is not always predictable based on the preoperative exams [3]. This is partly due to intrinsic anatomic properties of the aortic root—the ‘virtual ring’ is largely inhomogeneous, coursing through the muscular septum, the membranous septum and the mitro-aortic curtain. Moreover, leaflet and annular calcifications are often asymmetrical, adding further complexity to any attempt to predict the final shape of the prosthetic valve, the displacement of the native calcified leaflets and the sealing of the annulus around the prosthesis. A very good exemplification of this problem is given by the bicuspid aortic valve, which is usually ovoidal and heavily calcified, and may fail to adapt to the circular transcatheter valve [4]. For this reason, we have developed a simple method to analyse the reaction of the aortic root to the balloon inflation, and to obtain a dynamic measure of the CSA. In the uncertain cases (‘borderline’ annulus, important discrepancy between TEE and CT measurements, massive and/or eccentric calcifications), we proceed to a ‘calibrated’ balloon valvuloplasty. A conventional valvuloplasty balloon (Cristal Balloon, Balt, Montmorency, France) is inflated with a diluted contrast agent through a threeway stopcock. When the waist generated on the balloon profile by the aortic annulus is stretched, the stopcock is closed and an aortography is performed to exclude the presence of aortic regurgitation. The amount of contrast agent used to inflate the balloon is carefully recorded, and the balloon is deflated and withdrawn. On the bench, the balloon is inflated again to the same volume, and is then sized with a sizing plate (Amplatzer sizing plate, AGA Medical Italia, Milan, Italy). This simple manoeuvre allows us to accurately measure the aortic annulus, to estimate the risk of postoperative paraprosthetic leakage and to check the relationships between the dislocated aortic valve leaflets and the coronary arteries ostia. In our experience, this procedure has led to a change in the size of the percutaneous prosthesis in three patients, and to the conversion to transapical approach in two patients needing a 29 mm prosthesis. In conclusion, we believe that the CT protocol described by Blanke could greatly enhance our ability to evaluate the anatomy of the aortic root preoperatively. In doubtful cases, however, calibrated balloon valvuloplasty could add fundamental dynamic information, allowing us to ‘feel’ the aortic annulus while measuring it [3]." @default.
• W2147054585 created "2016-06-24" @default.
• W2147054585 creator A5004581032 @default.
• W2147054585 creator A5013775468 @default.
• W2147054585 creator A5053858541 @default.
• W2147054585 creator A5079231698 @default.
• W2147054585 date "2012-01-04" @default.
• W2147054585 modified "2023-10-18" @default.
• W2147054585 title "Sizing the annulus for transcatheter aortic valve implantation: more than a simple measure?" @default.
• W2147054585 cites W1988351808 @default.
• W2147054585 cites W2139760134 @default.
• W2147054585 cites W2219219424 @default.
• W2147054585 cites W2320495492 @default.
• W2147054585 doi "https://doi.org/10.1093/ejcts/ezr050" @default.
• W2147054585 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22223694" @default.
• W2147054585 hasPublicationYear "2012" @default.
• W2147054585 type Work @default.
• W2147054585 sameAs 2147054585 @default.
• W2147054585 citedByCount "6" @default.
• W2147054585 countsByYear W21470545852012 @default.
• W2147054585 countsByYear W21470545852013 @default.
• W2147054585 countsByYear W21470545852014 @default.
• W2147054585 countsByYear W21470545852018 @default.
• W2147054585 crossrefType "journal-article" @default.
• W2147054585 hasAuthorship W2147054585A5004581032 @default.
• W2147054585 hasAuthorship W2147054585A5013775468 @default.
• W2147054585 hasAuthorship W2147054585A5053858541 @default.
• W2147054585 hasAuthorship W2147054585A5079231698 @default.
• W2147054585 hasBestOaLocation W21470545851 @default.
• W2147054585 hasConcept C111472728 @default.
• W2147054585 hasConcept C126322002 @default.
• W2147054585 hasConcept C138885662 @default.
• W2147054585 hasConcept C142362112 @default.
• W2147054585 hasConcept C153349607 @default.
• W2147054585 hasConcept C164705383 @default.
• W2147054585 hasConcept C176752191 @default.
• W2147054585 hasConcept C2776570981 @default.
• W2147054585 hasConcept C2777767291 @default.
• W2147054585 hasConcept C2780007028 @default.
• W2147054585 hasConcept C2780009758 @default.
• W2147054585 hasConcept C2780586882 @default.
• W2147054585 hasConcept C2780714102 @default.
• W2147054585 hasConcept C41008148 @default.
• W2147054585 hasConcept C71924100 @default.
• W2147054585 hasConcept C77088390 @default.
• W2147054585 hasConceptScore W2147054585C111472728 @default.
• W2147054585 hasConceptScore W2147054585C126322002 @default.
• W2147054585 hasConceptScore W2147054585C138885662 @default.
• W2147054585 hasConceptScore W2147054585C142362112 @default.
• W2147054585 hasConceptScore W2147054585C153349607 @default.
• W2147054585 hasConceptScore W2147054585C164705383 @default.
• W2147054585 hasConceptScore W2147054585C176752191 @default.
• W2147054585 hasConceptScore W2147054585C2776570981 @default.
• W2147054585 hasConceptScore W2147054585C2777767291 @default.
• W2147054585 hasConceptScore W2147054585C2780007028 @default.
• W2147054585 hasConceptScore W2147054585C2780009758 @default.
• W2147054585 hasConceptScore W2147054585C2780586882 @default.
• W2147054585 hasConceptScore W2147054585C2780714102 @default.
• W2147054585 hasConceptScore W2147054585C41008148 @default.
• W2147054585 hasConceptScore W2147054585C71924100 @default.
• W2147054585 hasConceptScore W2147054585C77088390 @default.
• W2147054585 hasIssue "3" @default.
• W2147054585 hasLocation W21470545851 @default.
• W2147054585 hasLocation W21470545852 @default.
• W2147054585 hasOpenAccess W2147054585 @default.
• W2147054585 hasPrimaryLocation W21470545851 @default.
• W2147054585 hasRelatedWork W1979670001 @default.
• W2147054585 hasRelatedWork W1998766334 @default.
• W2147054585 hasRelatedWork W2065333061 @default.
• W2147054585 hasRelatedWork W2082042164 @default.
• W2147054585 hasRelatedWork W2348623473 @default.
• W2147054585 hasRelatedWork W2460357415 @default.
• W2147054585 hasRelatedWork W4221141215 @default.
• W2147054585 hasRelatedWork W4253488581 @default.
• W2147054585 hasRelatedWork W4280527567 @default.
• W2147054585 hasRelatedWork W1936382114 @default.
• W2147054585 hasVolume "41" @default.
• W2147054585 isParatext "false" @default.
• W2147054585 isRetracted "false" @default.
• W2147054585 magId "2147054585" @default.
• W2147054585 workType "article" @default.