1 Post Aortic Valve Replacement ( AVR ) : Are Gradients Important ? What Is ?
نویسنده
چکیده
Aortic valve replacement (AVR) is one of the most commonly performed cardiac surgical procedures. A standardized TEE approach to aortic prosthesis interrogation is helpful but the echocardiographer must also frequently use off-axis imaging and consider additional diagnostic modalities if TEE image quality is suboptimal, if prosthesis visualization is confounded by acoustic shadowing, or if concerning findings cannot be reconciled on the basis of TEE imaging alone. Correct interpretation of the TEE findings also requires knowledge of the different types of aortic valve prostheses. This allows the echocardiographer to compare the actual findings with the expected findings, based on the size and type of prosthesis used.
منابع مشابه
Transcatheter 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 کاملAortic Valve Replacement Using Continuous Suture Technique in Patients with Aortic Valve Disease
BACKGROUND The continuous suture (CS) technique has several advantages as a method for simple, fast, and secure aortic valve replacement (AVR). We used a simple CS technique without the use of a pledget for AVR and evaluated the surgical outcomes. MATERIALS AND METHODS Between October 2007 and 2012, 123 patients with aortic valve disease underwent AVR alone (n=28) or with other concomitant ca...
متن کاملImpact of patient-prosthesis mismatch and aortic valve design on coronary flow reserve after aortic valve replacement.
OBJECTIVES This prospective-randomized study investigated the effect of aortic valve design and patient-prosthesis mismatch (PPM) on coronary flow reserve (CFR) after mechanical or biological aortic valve replacement (AVR) in patients with aortic stenosis (AS). BACKGROUND Coronary flow reserve may be an important parameter of long-term survival after AVR in patients with AS. Reduced CFR may c...
متن کاملEarly Clinical Experience with Sutureless Aortic Valve Replacement for Severe Aortic Stenosis
Background Sutureless aortic valve replacement (SU-AVR) has been developed as an alternative surgical treatment for patients with symptomatic severe aortic stenosis (AS). The aim of this study was to evaluate the clinical outcomes of SU-AVR through an assessment of hemodynamic performance and safety. Methods From December 2014 to June 2016, a total of 12 consecutive patients with severe AS un...
متن کاملPerspective on the cost-effectiveness of transapical aortic valve implantation in high-risk patients: Outcomes of a decision-analytic model.
BACKGROUND The incremental cost-effectiveness of transapical transcatheter aortic valve implantation (TAVI) is ill-defined in high-risk patients where aortic valve replacement (AVR) is an option, and has not been ascertained outside a randomized controlled trial. METHODS We developed a Markov model to examine the progression of patients between health states, defined as peri- and post-procedu...
متن کامل