Download Aortic Root Surgery: The Biological Solution by Charles Abraham Yankah, Yu-Guo Weng, Roland Hetzer PDF

By Charles Abraham Yankah, Yu-Guo Weng, Roland Hetzer

The surgical result of bioprosthetic aortic valve substitute within the Nineteen Sixties and Nineteen Seventies weren't very passable. the quest for the fitting replacement for the diseased aortic valve led Donald Ross to improve the idea that of the aortic allograft in 1962 and the pulmonary autograft in 1967 for subcoronary implantation, and later, in 1972, as a whole root for exchanging the aortic root within the contaminated aortic valve with a root abscess. The aortic al- graft and pulmonary autograft surgeries have been revo- tionary within the background of cardiac valve surgical procedure within the final m- lennium simply because they compete good with the bioprosthesis, are nonthrombogenic (thus, requiring no postoperative anticoa- lation), are proof against an infection, restoration the anatomic devices of the aortic or pulmonary outflow tract, and supply unimpeded blood circulate and ideal hemodynamics, giving sufferers a b- ter diagnosis and caliber of lifestyles. surgical procedure for congenital, degenerative, and inflammatory aortic valve and root ailments has now reached a excessive point of adulthood; but an amazing valve for valve alternative isn't really on hand. The- fore, surgeons are focusing their talents and their scientific and s- entific wisdom on optimizing the technical artistry of val- sparing techniques.

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Aortic Root Surgery: The Biological Solution

The surgical result of bioprosthetic aortic valve substitute within the Nineteen Sixties and Nineteen Seventies weren't very passable. the quest for the precise replacement for the diseased aortic valve led Donald Ross to boost the idea that of the aortic allograft in 1962 and the pulmonary autograft in 1967 for subcoronary implantation, and later, in 1972, as an entire root for exchanging the aortic root within the contaminated aortic valve with a root abscess.

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As peripheral vascular disease is a major risk factor in elderly patients, this has to be kept in mind whenever comparing transapical to transfemoral results at any later stage. Postoperative care After successful valve implantation the patients can usually be extubated within the first hour on ICU or PACU. Total AV blocks are not uncommon (up to 10%) and may occur with some delay. Therefore, patients should be kept on a monitor (or telemetric surveillance) for at least 5 d. Indication for permanent pacemaker implantation should be handled liberally.

All patients had a post-procedural invasive aortic valve gradient of 0–10 mmHg, and only 3% patient had an aortic regurgitation of more than 2+. As for their functional status, 80% of patients NYHA class III/IV symptoms before the procedure, of those almost everybody improved to class I/II. Other conclusions that can be drawn by these data are as follows. 1%) is quite acceptable. Even more importantly, the mortality rate, as well the rate of all complications, continues to decline over time. 5%) [20, 21], since the nitinol frame CoreValve prosthesis applies constant pressure to the left ventricle outflow tract.

Philiston de Locroi et le timee’ de Plation. Rev Grecques 57:7 2. Sarton G (1952) A history of science. I Ancient science through the golden age of Greece. Harvard University Press, Cambridge, Massachusetts 3. Leonardo da Vinci (1977) Anatomical drawings from the Royal collections. The Royal Academy of Arts, London, p 35A 4. Valsalva AM (1740) Arteria magnae sinus. In: Morgagni JB (ed) Opera, pp 1–129 5. Siniawski H, Lehmkuhl H, Weng Y, Pasic M, Yankah C, Hoffman M, Behnke I, Hetzer R (2003) Stentless aortic valves as an alternative to homografts for valve replacement in active infective endocarditis complicated by ring abscess.

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