Injury to peripheral nerves due to injections of therapeutic and other agents is common. The postulated mechanisms of injury include direct needle trauma, secondary constriction by scar, and direct nerve fiber damage by neurotoxic chemicals in the injected agent. Neurological sequelae can range from minor transient sensory disturbance to severe sensory disturbance and paralysis with poor recovery. The recommended treatment has ranged from a conservative approach to immediate operative exposure and irrigation, and has also included early neurolysis or delayed exploration with neurolysis or resection and anastomosis. We present 370 cases of injection injury of the sciatic nerve in children treated during the last 20 years at the Neurosurgical Department of the Hospital La Paz in Madrid, Spain. Pathology, clinical course, treatment, and results are discussed.

The so-called foot-in-the-door and door-in-the-face techniques have been generally considered as procedures which may consistently influence others' behavior. This study compared efficiency (in terms of compliance rates with various target requests) of both techniques using meta-analysis. It is based on the accumulated studies directly comparing foot-in-the-door (n=22, subjects= 1581) and door-in-the-face (n=22, subjects= 1611) under a similar target request. Analysis indicated no significant differences in efficiency between the paradigms.

The authors review eight cases of thalamic tumors in children. Radical surgery was performed in seven cases. All cases were diagnosed by computed tomographic scanning, and histological diagnosis showed seven benign astrocytomas and one malignant astrocytoma. All patients are still alive. The treatment of these tumors is discussed.

A case of tension pneumocephalus that occurred after ventriculoperitoneal shunting is presented. We have reviewed 12 cases of pneumocephalus in association with ventriculoperitoneal shunt placement. This phenomenon occurs when air is forced through the shunt or enters through the cranial base because of: iatrogenic postsurgical connection, congenital fistula, trauma, or thinning of the cranial base. Ways of preventing and treating this problem are outlined.

The aim of this critical review was to clarify recommended fluid intake for older people. A literature search of published articles and guidelines on fluid intake recommendations until April 2020 was carried out using PUBMED, Scopus, Cochrane, and Google Scholar. In this review, we focused on people over 65 years old at different care levels. The results show that the mean fluid intake ranges between 311 and 2390 mL/day. However, it is difficult to know whether this corresponds to the real pattern of fluid intake, due to the variability of data collection methods. With respect to the recommendations, most international organizations do not take into consideration the physiology of ageing or the health problems associated with an older population. In conclusions, we recommend to follow the guideline of the European Society for Clinical Nutrition and Metabolism (ESPEN) and the European Food Safety Authority (EFSA). ESPEN is the only guideline which takes into account age. It is also based on EFSA recommendations. This authority takes into consideration all fluids consumed (ranging from food to fluids). If it is known that around 20% of all fluids consumed come from food, the result would effectively be that the EFSA recommends the same as the ESPEN guidelines: 1.6 L/day for females and 2.0 L/day for males. The findings could help raise the awareness of professionals in the sector with respect to the required fluid intake of the elderly and, in this way, contribute to avoiding the consequences of dehydration.

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The “evoking freedom” technique is a verbal compliance procedure that solicits someone to comply with a request by simply telling them they are free to accept or to refuse the request. The measure of the efficiency of this technique on compliance with large samples and the evaluation of its influence on various requests was tested in the first set of experiments. This technique was found to be efficient in increasing the number of people who agreed to give money to a requester, the number of smokers who agreed to give a cigarette, passersby who agreed to respond to a survey, and homeowners who agreed to buy pancakes. In the second set of experiments in which the mode of interaction between the requester and the person solicited was tested, the “evoking freedom” technique was found to be associated with greater compliance with a request addressed by mail and through face‐to‐face, phone‐to‐phone, or computer‐mediated interaction. The third set of experiments tested the effect of semantic variations of the “evoking freedom” technique and the weight of the repetition of the semantic evocation of freedom. These later experiments that used various phrases evoking the freedom to comply were found to be associated with greater compliance. Moreover, a double evocation of freedom was associated with even greater compliance than a single evocation. The importance of this technique for commitment communication is discussed.

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