Aortic Valve Replacement With Patch Enlargement of the Aortic Annulus

Prosthesis-Patient Mismatch Affects Survival After Aortic Valve Replacement

“…A more practical study would involve a prospective, long-term, echocardiographic analysis of the changes in indexed valvular EOA with time and its impact on patient survival. A prospective demonstration of the negative impact of prosthesispatient mismatch may influence surgeons to accept higher perioperative morbidity by performing more complex procedures, such as an annular enlargement 19 or a stentless valve implantation. 20,21 It is unclear whether the concept of prosthesis-patient mismatch even exists in stentless prostheses (homograft, autograft, or xenograft).…”

Mid-Term Outcomes After Aortic Valve Replacement With the 17-mm St. Jude Medical Regent Valve

“…Enlargement of the aortic annulus is based on the premise that a large-sized prosthesis favorably influences late clinical outcome. 17 Castro et al performed aortic root enlargement procedures in 114 patients to avoid PPM. 18 However, aortic annulus enlargement has been shown to result in prolonged aortic cross-clamp times.…”

Pericardial Processing: Challenges, Outcomes and Future Prospects

“…vascular grafts (Schmidt & Baier, 2000;Chvapil et al, 1970;Matsagas et al, 2006; Moon & West;, and heart valves (Ishihara et al, 1981;Schoen & Levy, 1999;Flanagan & Pandit, 2003;Vesely, 2005). Pericardial bioprostheses have also been described for the treatment of acquired cardiac pathologies, including postinfarction septal defects , reconstruction of mitral valve annulus (David et al, 1995a(David et al, , 1995b or outflow obstruction (Sommers & David, 1997). Additionally, pericardium has also been used for the construction of bioprostheses in noncardiac treatments such as patches for vaginal (Lazarou et al, 2005) or abdominal wall reparation (Limpert et al, 2009), dural repair (Cantore et al, 1987 or tracheoplasty (Dunham et al, 1994).…”