Alexander Künzli

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INTRODUCTION acute haemodynamic changes and/or loss of abdominal muscle tone can occur during induction of general anaesthesia and may be the Achilles' tendon in endovascular aneurysm repair (EVAR) of ruptured aortoiliac aneurysms (rAIA). The purpose of this study was to evaluate the use of local anaesthesia (LA) for EVAR to overcome these limitations. (More)
Broad-range PCR amplification of part of the 16S rRNA gene followed by single-strand sequencing was applied to samples of 18 resected heart valves from patients with infective endocarditis. The PCR results were compared with those of cultures of valves and with those of previous blood cultures. For two patients there was agreement with the cultures of the(More)
Both endothelin-A (ETA) and endothelin-B (ETB) receptors are known to be present in human coronary arteries. However, their absolute and relative amounts, functional roles, and the influence of pathology are uncertain. The goal of the present study was to characterize endothelin receptors mediating constriction in human coronary arteries and to assess the(More)
OBJECTIVE In acute type A dissection long-term results of conservative aortic root surgery were compared with the outcome of primary valve and/or root replacement. METHODS Between 1985 and 1995, 199 patients (mean age 59 years, 154 men) were operated on. The aortic root was involved in the dissection process and valve incompetence of varying degree was(More)
OBJECTIVE Prospective evaluation of early stent-graft repair of acute traumatic aortic rupture. METHODS Twelve patients with acute traumatic aortic rupture of the descending aorta, out of a series of 337 endovascular aortic procedures, were treated by implantation of self-expanding stent-grafts. The procedures were performed within a mean post-injury(More)
BACKGROUND Graft coronary artery disease (CAD) is an increasingly important problem during long-term survival after heart transplantation, but the importance of cellular rejection, in particular late after transplantation, remains undetermined. METHODS AND RESULTS We analyzed 492 coronary angiographies (967+/-705 days after transplantation; range, 49 days(More)
BACKGROUND Following mitral valve replacement, surgical closure of paravalvular leaks is usually advised in severely symptomatic patients and in those requiring blood transfusions for persisting haemolysis. However, the long-term prognosis of less symptomatic patients or those not needing blood transfusions is unknown. METHODS Between 1987 and 1997, we(More)
OBJECTIVE To describe our experience in the surgical treatment of infective, native and prosthetic aortic valve endocarditis, using cryopreserved homograft valves. METHODS Between January 1988 and September 1995, cryopreserved homografts were implanted in 49 patients (mean age 47 +/- 15 years; range 19-79) with acute infective endocarditis of the native(More)
OBJECTIVE Assess outcome of patients with descending thoracic aortic aneurysms complicated by aortobronchial and aortoesophageal fistulae in comparison to patients undergoing repair of aortic aneurysms without fistulae. METHODS In a consecutive series of 145 patients (age 60 +/- 12 years) with repair of descending thoracic and thoracoabdominal aortic(More)