scholarly journals A comparison of maintenance and recovery profile of sevoflurane and desflurane with dexmedetomidine in patients undergoing surgery for supratentorial tumours

2016 ◽  
Author(s):  
Nithya B. ◽  
Adarsh Kulkarni ◽  
Anita Shetty
2009 ◽  
Vol 11 (1) ◽  
pp. 42-52 ◽  
Author(s):  
Sheila Alexander ◽  
Samuel Poloyac ◽  
Leslie Hoffman ◽  
Matthew Gallek ◽  
Dianxu Ren ◽  
...  

Aneurysmal subarachnoid hemorrhage (SAH) is a hemorrhagic stroke subtype with a poor recovery profile. Cerebral vasospasm (CV), a narrowing of the cerebral vasculature, significantly contributes to the poor recovery profile. Variation in the endothelial nitric oxide (NO) synthase (eNOS) gene has been implicated in CV and outcome after SAH. The purpose of this project was to explore the potential association between three eNOS tagging single nucleotide polymorphisms (SNPs) and recovery from SAH. We included 195 participants with a diagnosis of SAH and DNA and 6-month outcome data available but without preexisting neurologic disease/deficit. Genotyping was performed using an ABI Prism 7000 Sequence Detection System and TaqMan assays. CV was verified by cerebral angiogram independently read by a neurosurgeon on 118 participants. Modified Rankin Scores (MRS) and Glasgow Outcome Scale (GOS) scores were collected 6 months posthemorrhage. Data were analyzed using descriptive statistics, analysis of variance (ANOVA) and chi-square analysis as appropriate. The sample was primarily female (n = 147; 75.4%) and White (n = 178; 91.3%) with a mean age of 54.6 years. Of the participants with CV data, 56 (47.5%) developed CV within 14 days of SAH. None of the SNPs individually were associated with CV presence; however, a combination of the three variant SNPs was significantly associated with CV (p = .017). Only one SNP (rs1799983, variant allele) was associated with worse 6-month GOS scores (p < .001) and MRS (p < .001). These data indicate that the eNOS gene plays a role in the response to SAH, which may be explained by an influence on CV.


2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Megha Kotecha ◽  
Sarang Gotecha ◽  
Ashish Chugh ◽  
Prashant Punia

Background. All children between 0 and 16 years presenting with brain tumours confirmed by Magnetic Resonance Imaging (MRI) and treated surgically in our institute were included in this study. Objective. The aim of this study is to evaluate the neuroophthalmic and clinical characteristics of intracranial space occupying lesions in children. Methods. Neuroophthalmic manifestations along with location of the tumour by contrast-enhanced MRI, type of surgical intervention, and postoperative histopathological diagnosis were evaluated. Results. In pediatric brain tumours, male preponderance was seen and supratentorial location was more common in general, while in older children, infratentorial tumours were more common than supratentorial tumours. Headache, vomiting, and cerebellar signs were the commonest neurological features. Diminution of vision, diplopia, and strabismus were the commonest ophthalmic symptoms. Papilledema, ophthalmoparesis, and nystagmus were the most frequent ophthalmological signs. Neurological manifestations of seizures, altered sensorium and motor deficits were more frequently seen in supratentorial tumours, while cranial nerve involvement and ataxia were seen in infratentorial tumours. Ophthalmological manifestations including diplopia, strabismus, ophthalmoparesis, and nystagmus were more frequently seen in infratentorial tumours. Astrocytoma was the most frequent histopathological diagnosis followed by medulloblastoma. Conclusion. Diagnosis of pediatric intracranial tumours is complex and requires a multidisciplinary approach for prompt management. An ophthalmologist should have a high index of suspicion for brain tumours especially in patients presenting with common ocular symptoms like diminution of vision, diplopia, and strabismus without any neurological symptoms.


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