Anatomical Implications of Chiari I and Basilar Invagination (Type B) in the IV Ventricle and Cisterna Magna.

OBJECTIVE: To analyze the anatomical changes of the IV ventricle and cisterna magna in the Chiari malformation I (CMI) and basilar invagination (type B). METHODS: This is a controlled study with 161 exams of magnetic resonance imaging (MRI) of adults grouped into control (n = 37), basilar invagination (BI; n = 31), Chiari malformation I (CMI; n = 37), and CMI+BI (n = 56). The MRIs were analyzed using the visualization software Osirix (Pixmeo, Bernex, Geneva, version 3.8.2). The morphometric variables were: distance from the obex to the McRae line; length of the IV ventricle floor; and the area and volume of the cisterna magna. The univariate ANOVA followed by Tukey's post-hoc test was applied to evaluate the difference between the groups. The difference between sexes was evaluated by the t test for each group. RESULTS: Alterations in the cisterna magna and IV ventricle were more evident only in the CMI and CMI+BI groups. For both sexes, the CMI and CMI+BI groups showed: a reduction in the CSF space (P < 0.001), cisterna magna with volume reduction (P < 0.001), low position of the obex (P < 0.001), and IV ventricle more elongated (male P = 0.007 and female P < 0.001). The BI group had no significant change in the analysis by sex. CONCLUSIONS: The CMI (isolated and associated with BI) showed a low obex position and elongation of the IV ventricle due to traction towards the spinal canal. The reduction of cisterna magna volume added to the occupation of the cerebellar tonsils can impact in the cerebrospinal fluid dynamics. The BI when isolated was not related to alterations in the parameters of cerebrospinal fluid spaces studied.

Nursing Staff Members Mental's Health and Factors Associated with the Work Process: An Integrative Review.

BACKGROUND: The mental health of nursing staff members influences the work process outcomes. OBJECTIVE: Identify the work related factors that harms the nursing team's mental health. METHODS: Databases PubMed, Scopus, CINAHL and MEDLINE, by mating between the indexed descriptors in MeSH terms "mental health" and "occupational health nursing". 783 articles were rescued to give a final sample of 18 articles. Integrative review in order to identify factors associated with the work process of the nursing staff that negatively affects mental health. RESULTS: The main associated factors were work demands, psychological demands, violence, aggression, poor relationships with administrators, accidents involving the risk of exposure to HIV, stress and errors in the execution of labor activities. The main findings regarding the nursing staff's mental health were post-traumatic stress disorder, depression, stress, major depressive episode and generalized anxiety disorder. CONCLUSION: Occupational nurses need to understand the complexities of mental health problems and substance use among nursing staff members to recognize, identify and care for workers at risk and offer adequate mental health care. Although the researches interests in this theme have increased, proving that all these factors contribute to the risk to mental health of nursing professionals, the protective measures and care are being neglected by managers in both private and public network . The health of nursing workers in question here is one more challenge for a profession that takes care of others in need, therefore, requires some caring with their own health.