I n recent memory it was not uncommon to encounter elderly patients, with severe aortic valve stenosis and coexistent pathologies that rendered them inoperable because of unacceptably high risk, to whom we were unable to offer any other effective treatment. They were perhaps the second most common group of patients in this age group, after those with end-stage ischaemic heart failure, where the...

UNLABELLED Percutaneous balloon aortic valvuloplasty (BAV) was a rare procedure in catheterization laboratories because of its limited prognostic impact. The recent advent of transcatheter aortic valve implantation (TAVI) has led to a resurgence of BAV, opening the way to a new indication as a bridge to TAVI. Herein, we reported an 83-year-old man with critical aortic valve stenosis and pulmona...

BACKGROUND To date, the surgical approach is the only option to replace the aortic valve. Percutaneous pulmonary valve replacement has recently opened new perspectives on transcatheter replacement of cardiac valves. We report our experience of aortic valve replacement through a percutaneous technique in lambs. METHODS AND RESULTS A bovine jugular vein containing a valve was dissected and sutu...

BACKGROUND In recent years, some experimental and clinical studies on transcatheter aortic valve implantation (TAVI) have been conducted. TAVI is indicated in patients with calcified pure or predominant aortic stenosis. The risk of this technique is still high. Aortic valved stent implantation above the coronary ostia might avoid blocking the coronary ostia. METHODS AND RESULTS Twenty healthy...

Sutureless valves were designed in an attempt to simplify the aortic valve replacement procedure and reduce extracorporeal circuit time, whilst allowing complete excision of the calcified native valve using a minimally invasive approach. Elderly patients with significant comorbidities are considered to benefit the most, although randomized data are lacking. In registries of patients treated wit...

OBJECTIVES To evaluate the feasibility of percutaneous aortic valve replacement without cardiac arrest in animal experiments. METHODS A self expanding nitinol stent, containing pulmonary valves from pigs in its proximal part, was implanted in six pigs (94-118 kg) by means of a 25 French catheter through the left subclavian artery under guidance of fluoroscopy and transoesophageal echocardiogr...

a 46 year old man had been undergone aortic valve replacement (avr) due to mechanical aortic valve endocarditis two month ago. he was referred to imam khomeini hospital because of dyspnea since two weeks ago. echocardiography showed the false aneurysm, with an area of flow beyond the lumen of the aorta. this patient underwent reoperation, the previously implanted aortic valve was removed, metic...

BACKGROUND Percutaneous aortic valve replacement for the treatment of aortic stenosis is an available and efficient alternative for patients at high surgical risk, especially those with advanced age and comorbidities. OBJECTIVE The authors report the first experience made in our midst with the use of the CoreValve endoprosthesis. METHODS In January 2008, two patients underwent percutaneous ...

1 Department of Interventional Cardiology and Endovascular Therapy, Cardiovascular Imaging and Surgery, Instituto Cardiovascular de Buenos Aires. Buenos Aires, Argentina 2 Cardiac Catheterization Laboratory, Department of Angiography and Interventional Cardiology, Sanatorio Allende. Córdoba, Argentina 3 Cardiac Catheterization Laboratory, Sanatorio Güemes. Buenos Aires, Argentina 4 Cardiac Cath...

OBJECTIVE To describe 6 months of experience in the anesthetic management of percutaneous aortic valve implantation. DESIGN An observational, cohort study. SETTING A university hospital. PARTICIPANTS Eighteen high-risk patients with relative contraindications to surgical valve replacement (78 +/- 8.7 years, logistic EuroSCORE 26 +/- 19.1). INTERVENTION An Edwards/Sapien Aortic Bioprosth...