Conformational Pulsatile Changes of the Aortic Annulus
نویسندگان
چکیده
منابع مشابه
Defining the enigmatic annulus of the aortic valve.
In the current issue of the Journal, Contino et al. [1] present a detailed investigation of the geometry of the components of the aortic root. Their discussion reminds me of an article we published more than 30 years ago, in which we commented on the debate regarding the definition of double outlet right ventricle, arguing that some investigators offered a ‘two steps forward and one step back’ ...
متن کاملLooking for the native annulus after transcatheter aortic valve replacement?
The main finding of the authors is that low implantation depth is associated with clinically significant new conduction disturbances and permanent pacemaker implantation. Although this result was previously reported by our team (2), the authors should be congratulated because the statistical power of their study is much better than ours (89 vs. 34 patients). However, the methodology for measuri...
متن کاملDynamics of the aortic annulus in 4D CT angiography for transcatheter aortic valve implantation patients
BACKGROUND Transcatheter aortic valve implantation (TAVI) is a well-established treatment for patients with severe aortic valve stenosis. This procedure requires pre-operative planning by assessment of aortic dimensions on CT Angiography (CTA). It is well-known that the aortic root dimensions vary over the heart cycle. However, sizing is commonly performed at either mid-systole or end-diastole ...
متن کاملA Study of the Oxidation-Induced Conformational and Functional Changes in Neuroserpin
Neuroserpin, a member of the Serine Proteinase Inhibitor (Serpin) superfamily, is known to be a neuroprotective factor in the focal ischemic stroke followed by reducing the microglial activation. Neuroserpin is a protein rich of methionine residues that can scavenge the free radical species which may increase its neuroprotective effect. On the other hand, the oxidative modifications of the amin...
متن کاملTranscatheter aortic valve implantation in patients with severe aortic stenosis and small aortic annulus.
OBJECTIVES Valve hemodynamics and clinical outcomes among patients with a small aortic annulus who underwent transcatheter aortic valve implantation (TAVI) were examined. BACKGROUND The presence of a small aortic annulus may complicate the surgical management of patients with severe aortic stenosis (AS). TAVI is an alternative to aortic valve replacement (AVR) in high-risk patients, but few d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: JACC: Cardiovascular Interventions
سال: 2012
ISSN: 1936-8798
DOI: 10.1016/j.jcin.2012.05.014