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nishanth sadashiva

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https://www.readbyqxmd.com/read/27606029/a-tale-of-two-tails-a-curiosity-revisited
#1
Nishanth Sadashiva, Manish Beniwal, Dhaval Shukla, Dwarakanath Srinivas
A human tail or a caudal appendage is a rare condition with preconceived notions and stigmata. They could be either true tails or "pseudotails" based on their embryology. Clinically, they are considered as a marker of occult spinal dysraphism. We report two such cases with tethering of cord, one of which was associated with a lipomeningomyelocele. These patients are in need of meticulous evaluation and appropriate management.
April 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27595542/eosinophilic-granuloma-of-skull-with-fluid-level-and-epidural-hematoma-a-case-report-and-review-of-the-literature
#2
Nishanth Sadashiva, Satyakam Baruah, Shilpa Rao, Anita Mahadevan, Kannepalli Narasinga Rao, Vikas Vazhayil, Sampath Somanna
Intracranial Langerhans cell histiocytosis commonly presents as skull lesions in children. An intratumoral cyst with fluid level and epidural hematoma occurring with eosinophilic granuloma is very rare. We report a 15-year-old boy who presented with a spontaneous epidural hematoma which was the result of a temporal eosinophilic granuloma. Multiple explanations for epidural hematoma in such cases have been discussed. Intratumoral hemorrhage followed by cyst formation and rupture may explain the pathophysiology of epidural hemorrhage formation...
2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27565470/intracranial-extraskeletal-mesenchymal-chondrosarcoma
#3
Nishanth Sadashiva, Anil Sharma, Dhaval Shukla, Poyuran Rajalakshmi, Anita Mahadevan, Bhagavatula Indira Devi
BACKGROUND: Intracranial extraskeletal mesenchymal chondrosarcomas (MCSs) are rare tumors accounting for <0.16% of intracranial tumors. They are usually described as occurring in the age group of 20-30 years and are commonly found in the frontoparietal region arising from the falx and surrounding dura. We describe 3 cases at varying ages, locations, and outcomes. CASE DESCRIPTION: A 42-year-old woman with anterior one third falx-based lesion; a 7-year-old boy with mid one third falcine lesion with hyperostosis of bone, presenting in comatose stage; and a 52-year-old woman with left posterior lateral frontal dural-based lesion are presented...
August 23, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27246485/functional-cortical-reorganization-in-cases-of-cervical-spondylotic-myelopathy-and-changes-associated-with-surgery
#4
Indira Devi Bhagavatula, Dhaval Shukla, Nishanth Sadashiva, Praveen Saligoudar, Chandrajit Prasad, Dhananjaya I Bhat
OBJECTIVE The physiological mechanisms underlying the recovery of motor function after cervical spondylotic myelopathy (CSM) surgery are poorly understood. Neuronal plasticity allows neurons to compensate for injury and disease and to adjust their activities in response to new situations or changes in their environment. Cortical reorganization as well as improvement in corticospinal conduction happens during motor recovery after stroke and spinal cord injury. In this study the authors aimed to understand the cortical changes that occur due to CSM and following CSM surgery and to correlate these changes with functional recovery by using blood oxygen level-dependent (BOLD) functional MRI (fMRI)...
June 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27114661/primary-intra-fourth-ventricular-meningioma-report-two-cases
#5
Nishanth Sadashiva, Shilpa Rao, Dwarakanath Srinivas, Dhaval Shukla
Meningioma's occurring intraventricular region are rare and these occurring in the fourth ventricle is even rare. Because of the rarity, it is not usually considered as a differential diagnosis in any age group. Clinical features and Imaging is not characteristic, and most of them are thought to be some different tumor. Here, we discuss two cases harboring a primary fourth ventricular meningioma Grade II, which was surgically excised successfully. Total excision was achieved in both cases and as the tumor was firm to soft and vermian splitting was not required...
April 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/26954973/moyamoya-disease-experience-with-direct-and-indirect-revascularization-in-70-patients-from-a-nonendemic-region
#6
Nishanth Sadashiva, Yerasi Varun Reddy, Arivazhagan Arima, Jitender Saini, Dhaval Shukla, Paritosh Pandey
INTRODUCTION: Moyamoya disease (MMD) is a chronic cerebrovascular disease characterized by stenosis/occlusion of bilateral terminal internal carotid arteries with the development of collaterals at base of the brain. We describe our experience of treating 70 patients (133 involved hemispheres, 108 hemispheres operated) surgically. PATIENTS AND METHODS: Surgically treated patients with MMD from 2006 to 2014 were reviewed retrospectively. There were 70 patients (54 pediatric, 36 females, range 2-46 years)...
March 2016: Neurology India
https://www.readbyqxmd.com/read/26821837/vertebral-artery-dolicoectasia-with-brainstem-compression-role-of-microvascular-decompression-in-relieving-pyramidal-weakness
#7
Nishanth Sadashiva, Dhaval Shukla, Dhananjaya I Bhat, Bhagavatula Indira Devi
Vertebral artery dolicoectasia (VAD) can cause brainstem compression and dysfunction. Reports of pyramidal tract involvement by brainstem compression and the surgical benefits and its long-term results are sparsely reported. We hereby report three cases of medullary compression by VAD causing pyramidal weakness. Two patients with bilateral compression with quadriparesis did not want surgical treatment and were still disabled at 58 months and 50 months of follow-up, respectively. One patient with unilateral medullary compression with hemiparesis underwent microvascular decompression using Teflon sling retraction...
April 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/26406441/intraventricular-astroblastoma-in-an-infant-a-case-report-and-review-of-the-literature
#8
REVIEW
Paramveer Sabharwal, Nishanth Sadashiva, Asha Unchagi, Anita Mahadevan, Paritosh Pandey
Astroblastomas are rare intracranial tumours of uncertain origin and are commonly present in the supratentorial compartment. Astroblastomas often affect children and young adults. Their occurrence in an intraventricular location, in an infant, is extremely uncommon. We describe a 1-year-old boy who presented with features of raised intracranial pressure. An MRI scan revealed an intralateral ventricular tumour. Complete excision was performed. Its histopathological examination revealed features consistent with astroblastoma...
2015: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/26238885/chromosomal-aberrations-in-atypical-and-anaplastic-meningiomas-a-fluorescence-in-situ-hybridization-study
#9
Nishanth Sadashiva, Harsh Sugur, Dwarakanath Srinivas, Vani Santosh, Sampath Somanna
OBJECTIVE: There is significant variability in the biologic behavior of meningiomas, especially of atypical and anaplastic meningiomas, that cannot be accounted for by just histology and grade of excision. The aim of our study was to analyze deletions in regions 22q, 18p11, 1p32, and 14q32 in grade II and grade III meningiomas and their correlation with tumor grade and recurrence. MATERIALS AND METHODS: A total of 59 samples from 50 cases of grade II and grade III meningiomas were analyzed with fluorescence in situ hybridization (FISH) technique with locus specific probes...
July 2015: Neurology India
https://www.readbyqxmd.com/read/25591682/operative-nuances-of-excision-of-colloid-cysts-in-septum-pellucidum-a-report-of-three-cases
#10
Nishanth Sadashiva, Savitr Sastry, Dhananjaya Bhat, Paritosh Pandey
Colloid cysts are common cysts are often located in the anterior third ventricle and septum pellucidum location is extremely rare. Cysts in septum pellucidum can be missed at surgery because of their unusual location. We describe three patients with colloid cysts in the septum pellucidum, with two in the cavum septum pellucidum. Various surgical implications of this unusual location are enumerated.
November 2014: Neurology India
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