Zusammenfassung
Operative Ausschaltungen von thorakoabdominellen Aortenaneurysmen sind signifikant mit technischen Risiken behaftet, die meistens durch verlängerte Aortenklemmperioden und durch die Schwierigkeit gekennzeichnet sind, alle relevanten renoviszeralen und spinal versorgenden Gefäße zu erkennen und rechtzeitig wieder mit dem Blutstrom zu verbinden. Eine Reihe von adjuvanten Techniken wurde mit dem Ziel entwickelt, die Morbidität zu senken. Hierzu gehören der maschinell unterstützte atriofemorale bzw. der pulmonal-arteriofemorale, extrakorporale Bypass, die subarachnoidale Liquordrainage, die epidurale Kühlung und der unilaterale, axillofemorale Bypass.
In dieser Arbeit werden physiologische, amaschinelle und an mehr als 100 Patienten angewandte Techniken beschrieben, die entwickelt wurden, um die distale Perfusion während der Ausschaltungsoperation zu gewährleisten, beginnend vom proximalsten Aspekt des Aneurysmas, endend an der linken A. iliaca. Diese Techniken haben das Potenzial, hämodynamische Instabilitäten zu minimieren, während die Ischämiezeit der Becken- und Bauchorgane sowie der Extremitäten deutlich verkürzt werden. Diese Methoden zeigen weitere Optionen zur operativen Therapie von thorakoabdominellen Aortenaneurysmen auf, v. a. dann, wenn ein Linksherzbypass oder eine Zentrifugalpumpen nicht zur Verfügung stehen bzw. nicht zum Einsatz kommen sollen.
Abstract
Surgery of thoraco-abdominal aortic aneurysms (TAAA) is significantly associated with technical risks which are characterized by prolonged periods of aortic cross-clamping, the difficulty to recognize all relevant reno-visceral and spinal arteries and to reconnect the blood supply in time. Numerous adjuncts have been developed to reduce morbidity, such as mechanical-assisted atriofemoral or pulmonary arterofemoral extracorporeal bypass, spinal cord liquor drainage, epidural cooling and unilateral, axillofemoral bypass.
In this article physiological, non-mechanical techniques are described, which were developed and used for over 100 patients. The aim was always to install a distal perfusion during aortic cross-clamping, starting from the most proximal aspect of the aneurysm and ending at the left iliac artery. These techniques have the potential to minimize hemodynamic instability while ischemia to pelvic and abdominal organs is reduced. These methods show further options for a surgical therapy of TAAAs mainly when a left heart bypass or a centrifugal pump is not available or should not be used.
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Sagban, T., Grabitz, K., Balzer, K. et al. Techniken der shuntunterstützten Operation bei thorakoabdominellen Aortenaneurysmen. Gefässchirurgie 15, 48–53 (2010). https://doi.org/10.1007/s00772-009-0740-y
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DOI: https://doi.org/10.1007/s00772-009-0740-y