Emergence agitation in children

unclear. Interestingly, the authors made a behavioural assessment within 1 week and found no functional deficits, but the tests used lacked discrimination of motor or sensory deficits, paraesthesia, or painful neuropathies Therefore, functional data should be interpreted with caution. Objective evaluation of nerve injury, for example, myelin damage, is missing. Behavioural assessment is challenging, especially in larger animals such as pigs. For rodents, for example, rats and mice, validated and reproducible instruments (i.e. hot plate test, von Frey electronic, etc.) are available. 7 On the basis of these many uncertainties, we feel that it is necessary to further clarify risks and consequences of various regional anaesthesia techniques before their acceptance and application in daily clinical practice.