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Antwerp University Hospital

6 ARTICLES PUBLISHED IN JoVE

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Medicine

Chronic Constriction Injury of the Rat's Infraorbital Nerve (IoN-CCI) to Study Trigeminal Neuropathic Pain
Kristof Deseure 1, Guy H. Hans 2
1Translational Neurosciences, University of Antwerp, 2Multidisciplinary Pain Center, Antwerp University Hospital

This manuscript describes a rodent model to study trigeminal neuropathic pain. The methods described include surgical procedures to perform a chronic constriction injury of the rat’s infraorbital nerve and the post-surgical behavioral tests to measure the changes in spontaneous and evoked behavior that are indicative of persistent pain and allodynia.

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Neuroscience

In Vitro Recording of Mesenteric Afferent Nerve Activity in Mouse Jejunal and Colonic Segments
Sara Nullens 1, Annemie Deiteren 2, Wen Jiang 3, Christopher Keating 4, Hannah Ceuleers 1, Sven Francque 5, David Grundy 3, Joris G. De Man 1, Benedicte Y. De Winter 1
1Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology, University of Antwerp, 2Visceral Pain Group, Discipline of Medicine, University of Adelaide, 3Department of Biomedical Sciences, University of Sheffield, 4Department of Pharmacy, Pharmacology and Postgraduate Medicine, University of Hertfordshire, 5Department of Gastroenterology and Hepatology, Antwerp University Hospital

Mesenteric afferent nerves convey information from the gastrointestinal tract towards the brain regarding normal homeostasis as well as pathophysiology. Gastrointestinal afferent nerve activity can be assessed by mounting isolated intestinal segments with attached afferent nerves into an organ bath, isolating the nerve, and assessing basal as well as stimulated activity.

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Education

Objective Nociceptive Assessment in Ventilated ICU Patients: A Feasibility Study Using Pupillometry and the Nociceptive Flexion Reflex
Davina Wildemeersch 1, Jens Gios 2, Philippe G. Jorens 3, Guy H. Hans 2
1Multidisciplinary Pain Center, Anesthesiology and Critical Care Medicine, Antwerp University Hospital (UZA), University of Antwerp (UA), 2Multidisciplinary Pain Center (PCT), Antwerp University Hospital (UZA), 3Critical Care Medicine, Antwerp University Hospital (UZA), University of Antwerp (UA)

Pain assessment in anesthetized patients who cannot communicate with the outside world in any way remains challenging despite the development of innovative objective pain evaluation tools. In this project, the pupillary dilation reflex and the nociception flexion reflex are assessed in critically ill, mechanically ventilated adult patients.

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Medicine

Endolymphatic Duct Blockage as a Surgical Treatment Option for Ménière's Disease
Annejet Alida Schenck 1,2, Issam Saliba 3, Josephina Maria Kruyt 4, Peter Paul van Benthem 2, Hendrikus Maria Blom 1,2,5
1Department of Otorhinolaryngology, Haga Hospital, 2Department of Otorhinolaryngology, Leiden University Medical Centre, 3Division of Otolaryngology-Head and Neck Surgery, Montreal University Hospital Center (CHUM), University of Montreal, 4Department of Otorhinolaryngology, Bergman Clinics, 5Department of Otorhinolaryngology, Antwerp University Hospital

Endolymphatic duct blockage is a relatively new surgical method for patients suffering from Ménière's disease. Following a regular mastoidectomy, the endolymphatic duct is identified and ligated using a regular titanium hemoclip. The effectiveness of this procedure is currently being assessed in a randomized trial.

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Medicine

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
Nora M. Weiss 1,2,3,4,5, Stefan Hans 6, Martin Wozniak 6, Aline Föger 6, Stefan Dazert 1, Vincent Van Rompaey 2,7, Paul Van de Heyning 2,7, Joachim Schmutzhard 8, Angelika Dierker 6
1Department of Otorhinolaryngology-Head and Neck Surgery, Ruhr-University Bochum, St. Elisabeth-Hospital Bochum, 2Department of Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, 3International Graduate School of Neuroscience (IGSN), Ruhr-University Bochum, 4Technical University of Munich, 5Department of Otorhinolaryngology, TUM School of Medicine, Klinikum rechts der Isar, 6MED-EL, 7Department of Otorhinolaryngology and Head & Neck Surgery, Antwerp University Hospital, 8Department of Otorhinolaryngology-Head and Neck Surgery, Medical University Innsbruck

Here we present a protocol to conduct repeated impedance telemetry measurements during cochlear implantation (CI). They may allow conclusions on the electrode's and implant's function. Repeated impedance measurements enable objective feedback on whether the electrode is positioned inside the perilymph or outside the inner ear.

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Neuroscience

Chronic Constriction Injury of the Distal Infraorbital Nerve (DIoN-CCI) in Mice to Study Trigeminal Neuropathic Pain
Kristof R. Deseure 1,2, Guy H. Hans 1,2
1Antwerp Surgical Training, Anatomy and Research Centre, Algology (pain research), University of Antwerp, 2Multidisciplinary Pain Center, Antwerp University Hospital

Chronic constriction injury of the distal infraorbital nerve in mice induces changes in spontaneous behavior (increased face grooming activity) and nocifensive behavior in response to tactile stimulation (hyperresponsiveness to von Frey hair stimulation) that are signs of ongoing pain and allodynia and serves as a model for trigeminal neuropathic pain.

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