Background and aim: the aim of present study was Assessing the Overall Postoperative morbidity among patients with brain tumors by using preoperative functional Magnetic Resonance Imaging. Method: Databases of PubMed, Scopus, Web of Science, EBSCO, ISI Web of knowledge and Embase were searched for systematic literature between 2012 to July 2022. 95% confidence interval for odds ratio with fixed effect model and Mantel–Haenszel method and were calculated. To deal with potential heterogeneity, random effects were used and I2 showed heterogeneity. Meta-analysis was performed using Stata/MP v.17 software. Result: In the initial review, duplicate studies were eliminated and abstracts of 178 studies were reviewed, the full text of 32 studies was reviewed by two authors, finally, six studies were selected. Odds ratio of Unfavorable outcomes between functional MRI and control group was 0.46 (OR, 95% CI 0.15, 0.76; p<0.001). Odds ratio of Gross total resection between functional MRI and control group was 0.20 (OR, 95% CI -0.20, 0.59; p=0.34). Conclusion: According to the findings of the present study, the use of functional MRI before brain tumor removal is associated with a reduction in the risk of delayed or permanent neurological deficits after surgery with a two-month follow-up period.
Background: Bilingualism is a universal phenomenon. Study of bilingual brain has provided evidence to probable advantageous outcomes of early second language learning and brain structural correlates to these outcomes. Preservation of cognitive function with aging and executive dexterity are amongst proposed benefits. Method: Using the data deposited by Pliatsikas we analyzed through diffusion MRI connectometry structural difference in white matter tracts in 20 healthy sequential bilingual adults, who used English as a second language on a daily basis, and 25 controls in fiber differentiation analyses. Significant tracts were extracted with and without regression against language immersion period. Future studies are warranted to address structural differences with larger samples, investigating the effects of early language immersion on white matter tracts versus individual and social variables that interfere with white matter maturation and integrity.
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