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Abstract

Neuroscience

Brain Death Induction in Mice Using Intra-Arterial Blood Pressure Monitoring and Ventilation via Tracheostomy

Published: April 17th, 2020

DOI:

10.3791/60831

1Department of Surgery Campus Charité Mitte/Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, 2Department of Visceral, Transplant and Thoracic Surgery, Medical University of Innsbruck, 3Charité Clinician Scientist Program, Berlin Institute of Health, 4Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, 5Department of Cardiothoracic Surgery, University Medical Center Regensburg, 6Department of General, Visceral and Vascular Surgery, Charité - Universitätsmedizin Berlin

* These authors contributed equally

Abstract

While both living donation and donation after circulatory death provide alternative opportunities for organ transplantation, donation after donor brain death (BD) still represents the major source for solid transplants. Unfortunately, the irreversible loss of brain function is known to induce multiple pathophysiological changes, including hemodynamic as well as hormonal modifications, finally leading to a systemic inflammatory response. Models that allow a systematic investigation of these effects in vivo are scarce. We present a murine model of BD induction, which could aid investigations into the devastating effects of BD on allograft quality. After implementing intra-arterial blood pressure measurement via the common carotid artery and reliable ventilation via a tracheostomy, BD is induced by steadily increasing intracranial pressure using a balloon catheter. Four hours after BD induction, organs may be harvested for analysis or for further transplantation procedures. Our strategy enables the comprehensive analysis of donor BD in a murine model, therefore allowing an in-depth understanding of BD-related effects in solid organ transplantation and potentially paving the way to optimized organ preconditioning.

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Keywords Brain Death

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