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Etablierung eines humanen Modells zur Untersuchung des akuten Ischämieschmerzes am Beispiel von Adenosin
Etablierung eines humanen Modells zur Untersuchung des akuten Ischämieschmerzes am Beispiel von Adenosin
Purpose The aim of this study was to establish a method to examine acute ischemic pain in humans using the example of adenosine. Materials and Methods 11 patients with unilateral peripheral arterial disease (PAD) performed a treadmill exercise until intolerable exercise-induced ischemic pain. Blood gas analysis (BGA) and blood samples were taken before treadmill examination (baseline), directly after treadmill examination and after recovery. The ankle-brachial index (ABI) and systemic blood pressure was measured at the same time. The ABI was measured via conventional Doppler method. High-performance liquid chromatography (HPLC) was used to determine the purine adenosine and its metabolite inosine. S100B-serum levels were detected via Elecsys® S100B Immunoassay (Roche Diagnostics, Penzberg Deutschland). Results Treadmill exercise lead to intolerable exercise-induced ischemic pain in the PAD affected leg. ABI decreased to pathological values. BGA and blood samples showed typical ischemic changes. A systemic increase in adenosine levels was measured, whereas no local increase in the PAD affected leg could be found. A correlation between S100B and peripheral nerve damage could not be found. Conclusion The established method is an effective model to examine acute ischemic pain in humans.
Peripheral arterial disease, acute ischemic pain, adenosine, S100B
Freiberg, Florentina Joyce
2013
German
Universitätsbibliothek der Ludwig-Maximilians-Universität München
Freiberg, Florentina Joyce (2013): Etablierung eines humanen Modells zur Untersuchung des akuten Ischämieschmerzes am Beispiel von Adenosin. Dissertation, LMU München: Faculty of Medicine
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Abstract

Purpose The aim of this study was to establish a method to examine acute ischemic pain in humans using the example of adenosine. Materials and Methods 11 patients with unilateral peripheral arterial disease (PAD) performed a treadmill exercise until intolerable exercise-induced ischemic pain. Blood gas analysis (BGA) and blood samples were taken before treadmill examination (baseline), directly after treadmill examination and after recovery. The ankle-brachial index (ABI) and systemic blood pressure was measured at the same time. The ABI was measured via conventional Doppler method. High-performance liquid chromatography (HPLC) was used to determine the purine adenosine and its metabolite inosine. S100B-serum levels were detected via Elecsys® S100B Immunoassay (Roche Diagnostics, Penzberg Deutschland). Results Treadmill exercise lead to intolerable exercise-induced ischemic pain in the PAD affected leg. ABI decreased to pathological values. BGA and blood samples showed typical ischemic changes. A systemic increase in adenosine levels was measured, whereas no local increase in the PAD affected leg could be found. A correlation between S100B and peripheral nerve damage could not be found. Conclusion The established method is an effective model to examine acute ischemic pain in humans.