Transcatheter Aortic Valve Replacement in Degenerated Perceval Bioprosthesis: Clinical and Technical Aspects in 32 Cases.

Background: Sutureless aortic bioprostheses are increasingly being used to provide shorter cross-clamp time and facilitate minimally invasive aortic valve replacement. As the use of sutureless valves has increased over the past decade, we begin to encounter their degeneration. We describe clinical outcomes and technical aspects in patients with degenerated sutureless Perceval (CorCym, Italy) aortic bioprosthesis treated with valve-in-valve transcatheter aortic valve replacement (VIV-TAVR).

Pedicle subtraction osteotomy for the treatment of chin-on-chest deformity in a post-radiotherapy dropped head syndrome: a case report and review of literature.

Purpose: Chin-on-chest deformity is a rare and severe condition mostly related with ankylosing spondylitis, traumas and/or cervical spine surgery. We present a case of 69 years old woman with a rare form of chin-on-chest secondary to dropped head syndrome (DHS), developed after radiotherapy for Hodgkin disease. In addition, we reviewed the few publications about this specific condition; management and surgical treatment of DHS are discussed.

Aortic valve surgery in the elderly patient: a retrospective review.

Elderly patients are referred with increasing frequency for aortic valve replacement (AVR), due to the ageing of the population and to improved results of surgery. We retrospectively analysed the in-hospital and short-term (up to three years) results of AVR in 185 patients aged >or=75 years, operated on at our institution from January 2000 to December 2003. Follow-up was completed by a telephone interview during January 2005.

Pump-assisted beating heart surgery.

Presentation of the revascularization of ischemized myocardium: beating heart technique using pump-assisted extracorporeal circulation. Main technique of revascularization is presented with highlights of modern mini extracorporeal circulation and beating heart surgery devices. Clinical physiological aspects of the method are described and bibliographical data provided.

Aortic valve replacement through a right minithoracotomy.

Minimally-invasive operative techniques have many advantages, such as less postoperative pain, lower morbidity and mortality, faster recovery, and shorter duration of operation and hospital stay, associated with lower costs. Minimally invasive cardiac surgery has been developed to offer patients the benefits of open heart operations with decreased pain and limited skin incision. It has been popularized as an alternative to the conventional median sternotomy approach.

AMPD1 (C34T) polymorphism and clinical outcomes in patients undergoing myocardial revascularization.

Background: C34T variant of adenosine monophosphate deaminase 1 (AMPD1) gene has been associated with a prolonged survival in heart failure and coronary artery disease, hypothetically linked to an enhanced production of adenosine.

Design: Since adenosine administration is a promising approach for the prevention of the ischemia-reperfusion in myocardial revascularization, the aim of this study was to investigate whether the AMPD1 (-) allele is associated with a favorable prognosis after coronary revascularization. In addition, we assessed the association between AMPD1 polymorphism and plasma adenosine levels.