Browsing by Author "Devesh Kumar"

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Persistent facial pain in post-stroke patients, a hospital-based cohort study; experience from North India
(Elsevier Ltd, 2024) Priya Dev; Akhilesh Kumar Singh; Devesh Kumar; Mareena Cyriac; Varun Kumar Singh; Anand Kumar; Rameshwar Nath Chaurasia; Vijaya Nath Mishra; Deepika Joshi; Abhishek Pathak
Background: Post-stroke pain is common after a stroke and might be underreported. We describe Persistent Facial Pain (PFP) developed in post-stroke patients. Method: ology: This was a prospective hospital-based cohort study of stroke patients, and patients were followed up. Out of 415 stroke patients, 26 developed PFP. Result: Out of all PFP patients, six patients had an ischemic stroke, and 20 had a hemorrhagic stroke. 57.7% of patients had hypertension, while 34.6 patients had diabetes. The stroke location was left-sided in 12 patients and right-sided in 14 patients. 46.15% of patients responded to venlafaxine, 30.77% responded to amitriptyline, and 23.08% responded to pregabalin. Conclusion: Persistent facial pain is a pain syndrome that might be missed in patients post-stroke. It might be more common in hemorrhagic stroke patients than in ischemic stroke patients. It responds adequately to antidepressants. A high index of suspicion is required to diagnose and appropriately manage these patients. © 2024
Posterior Reversible Encephalopathy Syndrome with Renal Disease
(Springer, 2024) Abhishek Abhinay; Aditi Agarwal; Ankur Singh; Shikhar Garg; Devesh Kumar; Rajniti Prasad; Nitish Kumar
[No abstract available]
Preventing occupational stress in railway engine pilots: Issues at a glance
(IGI Global, 2016) Devesh Kumar; Poonam Singh Kharwar
Traffic volume and speed is going to be increased in Indian Railways successively leading to higher stress in train operations. The jobs of railway pilots come under the category of high strain jobs, necessitating a need to conduct study to unfold factors associated with occupational stress. OSI test, questionnaire of specific stressors and laboratory test battery were used as tools. Means of OSI of railway pilots was significantly higher than OSI of train operation staff. Mean of OSI of goods train pilots was higher to means to those of high speed and passenger train pilots. Study revealed positive correlation of speed perception and complex reaction time tests, and negative correlation of other constituent tests of laboratory test battery to OSI test. Highest stressor observed is role overload followed by role conflict. These findings provide evidence of higher occupational stress among railway pilots because of identified specific stressors. Significant correlation noticed between OSI and laboratory test results indicates its utility in preliminary psychological screening. © 2017, IGI Global. All rights reserved.
Scavenging of OH and OOH radicals by polyradicals of small polycyclic aromatic hydrocarbons
(Springer Science and Business Media Deutschland GmbH, 2021) Amarjeet Yadav; Manish Kumar Tiwari; Deep Kumar; Devesh Kumar
The hydroxyl and peroxyl radicals, particularly the former, occur abundantly and damage almost all types of materials. Polycyclic aromatic hydrocarbons (PAHs) and their polyradicals (all hydrogens removed) have been considered as models for graphene in some recent studies. Geometries of different adducts of polyradicals of two small PAHs having four and nine benzene rings with an OH or OOH radical each were optimized employing unrestricted density functional theory and two different density functionals. The ground states of all the adducts involving the PAHs had doublet spin multiplicity while those involving the polyradicals had doublet, quartet, sextet, or octet spin multiplicity that was decided on the basis of calculated minimum total energies for optimized geometries. Binding energies of the adducts of an OH or OOH radical at the different sites of the polyradicals of PAHs showed that the OH radical would bind with these systems much more strongly than the OOH radical while both the radicals would bind much more strongly with the polyradicals than with the PAHs. Furthermore, both the OH and OOH radicals are found to bind at the edges of the polyradicals much more strongly than at their interior sites. It is shown that polyradicals can serve as efficient scavengers of OH and OOH radicals and therefore, these materials can be used to protect both biological and non-biological systems from damage due to reactions with these radicals. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.