Latest work with IntechOpen by Bernhard Schaller
This book covers all aspects and the most vibrant topics of ischemic stroke research: from basic sciences to latest methods of clinical applications. The authors give an overview of what has importance today in stroke research and also strike future ideas. The diversity of origin of the internationally known authors underlines not only that ischemic stroke research is nowadays global but also that this diversity gives new and valuable inputs to treat our patients.
Go to the bookChapters authored
The Trigeminocardiac Reflex — An Example of Reflexive Heart Rhythm Change
The trigeminocardiac reflex (TCR) is defined as the sudden onset of parasympathetic dysrhythmia, sympathetic hypotension, apnoea or gastric hyper-motility during mechanical/thermal stimulation of any of the sensory branches of the trigeminal nerve. The risk factors that are already known for increasing the prevalence of the TCR include anatomical location, hypercapnia, hypoxemia, light general anaesthesia, age (more pronounced in children), the nature of the provoking stimulus (stimulus strength and duration) and different drugs. Already different potential confounders are also identified. This discussion about risk factors has its importance because of the substantial consequences for functional outcome after intraoperative TCR occurrence. But there remains still a substantial lack of thorough understanding of the TCR, the current treatment options for patients with TCR include a mostly empirical approach: (i) risk factor identification and modification; (ii) prophylactic measures of vital signs and (iii) administration of vagolytic agents or sympathomimetics. In this context, we have now created different thinking models so that we can preoperatively plan a skull base surgery procedure safely in relation to a potential occurrence of the TCR episodes. This chapter provides an overview of this unique reflex that presents a unique interaction between heart and brain. In addition, this also illustrates the mechanism of various cardiac rhythm changes related to the TCR.
Part of the book: Abnormal Heart Rhythms
Ischemic Postconditioning after Stroke: Another Concept for the Trigeminocardiac Reflex?
Ischemic postconditioning is a concept for preventing ischemia/reperfusion injury in cerebral infarction. It has been evolved into experimental research by a broad range of stimuli/triggers and has not yet found its place in translational research. This review, therefore, first examines a potential clinical application of this concept and also provides insight into the phenomenon of trigeminocardiac reflex (TCR) and its oxygen-conserving component as a pillar of the ischemic postconditioning concept in humans. This concept serves as an example that only innovative therapeutic approach will substantially improve the current stroke research.
Part of the book: Ischemic Stroke