Context: Telemedicine is a major effort to tackle the uneven availability of facilities for thrombolysis in acute ischemic stroke. We present a telestroke model introduced in a small hilly state of Himachal Pradesh in India. Aims: To provide acute ischemic stroke treatment with tissue plasminogen activator in all district hospitals of Himachal Pradesh with computerized axial tomographic scan facility through Telemedicine. Settings and Design: Smartphone-based hub and spoke telestroke model was used with two tertiary care hospitals (with neurologists) as hub and 17 district hospitals (without onsite neurologists) as spokes. Subject and Methods: The telestroke project was launched in the state of Himachal Pradesh in April 2014. Medical officers in district hospitals (Medicine graduates and Internal Medicine postgraduates) were trained in the treatment of stroke through workshops. Tissue plasminogen activator was made available at all these centers, free of cost through hospital pharmacies. Four neurologists at two tertiary care centers were made available for consultation on phone. Results: Between June 2014 and May 2015, a total of 26 patients received thrombolysis under the telestroke project at nine district hospitals without onsite presence of a neurologist. Eight patients were females and 18 males. The age of patients ranged from 26 to 80 years. Only 2 patients developed an intracranial bleed following thrombolysis, and both were nonfatal. Conclusions: Smartphone-based telestroke services may be a much cheaper alternative to video-conferencing-based telestroke services and are more portable with less technical glitches. To the best of our knowledge, this is the first telestroke model being reported from India. It seems to be the way forward in providing timely treatment in acute ischemic stroke in underserved and resource poor settings.

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Objective: Resection of large Vestibular Schwannomas (VSs) can be associated with postoperative facial nerve injury. Diffusion-based tractography has emerged as a powerful tool for three-dimensional imaging and reconstruction of white matter fibers; however, tractography of the cranial nerves has not been well studied. In this prospective study, we aim to predict the position of facial nerve in large VSs (>3 cm) using Diffusion Tensor Imaging (DTI) tractography and correlate it with the intraoperative finding of the position of facial nerve. Materials and Methods: Twenty patients with a large VS (>3 cm) undergoing surgery were subjected to preoperative DTI to predict the position of the facial nerve in relation to the tumor. The surgeon was blinded to the results of the preoperative DTI tractography. A comparative analysis was then made during operation. The location of the facial nerve in relation to the tumor was recorded during surgery using facial nerve stimulator. Results: Of the 20 patients who underwent DTI tractography, it was not possible to preoperatively identify facial nerve in one patient. In another patient, although DTI tractography predicted the position of facial nerve, it was not identified intraoperatively. In the remaining 18 patients, DTI tractography accurately predicted the facial nerve position. The predicted position was in synchronization with the intraoperative facial nerve position in 16 patients (89% concordance). It was discordant in two patients (11%), but this was not found to be statistically significant (P = −0.3679). Conclusion: This study validates the reliability of facial nerve DTI-based fiber tracking for prediction of the facial nerve position in patients with large VSs. The reliable preoperative visualization of facial nerve location in relation to the VS will allow surgeons to plan tumor removal accordingly and may increase the safety of surgery.

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Purpose: Traditionally, peripheral nerve lesions are diagnosed on the basis of clinical history, physical examination, and electrophysiological studies, and the role of imaging studies has been limited. The purpose of the study was to assess the usefulness of sonography in diagnosing peripheral nerve lesions. Materials and Methods: Thirty adult patients with peripheral nerve lesion/s and 30 healthy adult volunteers were included in the study, and sonography of the relevant peripheral nerve/s was done. The mean cross-sectional area (CSA) of the involved nerves were compared using Student t-test. Results: The study included patients with diabetic peripheral neuropathy (DPN), carpal tunnel syndrome, leprosy, peripheral nerve tumor, and peripheral nerve trauma. There was a significant increase in CSA of the median nerve and ulnar nerve in DPN patients, and of the median nerve within the carpal tunnel in carpal tunnel syndrome (P < 0.0001) as compared to age and sex-matched controls. Sonography showed significant thickening of both the ulnar and median nerves in patients with leprosy. On sonography, schwannoma and neurofibroma had a similar appearance and showed internal vascularity. In case of neural trauma, sonography allowed precise localization of the site and type of nerve injury. Conclusion: High-resolution sonography is useful in characterizing peripheral nerve lesions and can complement other diagnostic investigations such as the nerve conduction study. It is easily available and has the potential to become the first modality for the evaluation of focal peripheral nerve disorders.

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The current trend in all fields of surgery is towards less invasive procedures with shorter hospital stays. The reasons for this change include convenience to patients, optimal resource utilization, and cost saving. Technological advances in neurosurgery, aided by improvements in anesthesia, have resulted in surgery that is faster, simpler, and safer with excellent perioperative recovery. As a result of improved outcomes, some centers are performing brain tumor surgery on an outpatient basis, wherein patients arrive at the hospital the morning of their procedure and leave the hospital the same evening, thus avoiding an overnight stay in the hospital. In addition to the medical benefits of the outpatient procedure, its impact on patient satisfaction is substantial. The economic benefits are extremely favorable for the patient, physician, as well as the hospital. In high volume centers, a day surgery program can exist alongside those for elective and emergency surgeries, providing another pathway for patient care. However, due to skepticism surrounding the medicolegal aspects, and how radical the concept at first sounds, these procedures have not gained widespread popularity. We provide an overview of outpatient brain tumor surgery in the western world, discussing the socioeconomic, medicolegal, and ethical issues related to its adaptability in a developing nation.

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Background: Subependymal giant cell astrocytomas (SEGA) are slow-growing benign intraventricular tumors, the pathogenesis of which is debated. Recent studies have shown that tuberous sclerosis complex (TSC) 1 and TSC2 genes are linked to the mammalian target of rapamycin (mTOR) cell signaling pathway. We aimed to analyze TSC1 and TSC2 gene mutation, hamartin and tuberin protein expression, and protein expression of mTOR signaling cascade in a series of SEGA to determine their role in pathogenesis. Materials and Methods: Twenty-eight SEGA cases were retrieved from archival material. Immunohistochemistry was performed on formalin-fixed, paraffin-embedded tissue using antibodies against tuberin, hamartin, phospho-p70S6 kinase, S6 ribosomal protein, phospho-S6 ribosomal protein, phospho-4E-BP1, Stat3, and phospho-Stat3. Mutation analysis of TSC1 (exons 15 and 17) and TSC2 (exons 33, 39, and 40) was done by DNA sequencing. Results: Loss of immunoexpression of either hamartin or tuberin was found in 19 cases (68%). Pathogenic point mutations in selected exons of TSC1 and TSC2 genes were present in 5 of 20 cases studied. Robust expression of mTOR downstream signaling molecules phospho-p70S6 kinase (100%), S6 ribosomal protein (82%), phospho-S6 ribosomal protein (64%), phospho-4E-BP1 (64%), and Stat3 (100%) was seen. Four cases (14%) showed immunopositivity for phospho-Stat3. There was no significant correlation of these markers with immunoloss of tuberin and hamartin. Significance: There is a definite role for TSC1 and TSC2 genes in the pathogenesis of SEGA as evidenced by loss of protein expression and presence of mutations. Strong expression of mTOR downstream signaling proteins indicates activation of mTOR pathway in these tumors, suggesting that proteins in this pathway may have the potential to serve as therapeutic targets in these patients.

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Transcranial Doppler (TCD) is the only noninvasive modality for the assessment of real-time cerebral blood flow. It complements various anatomic imaging modalities by providing physiological-flow related information. It is relatively cheap, easily available, and can be performed at the bedside. It has been suggested as an essential component of a comprehensive stroke centre. In addition to its importance in acute cerebrovascular ischemia, its role is expanding in the evaluation of cerebral hemodynamics in various disorders of the brain. The “established” clinical indications for the use of TCD include cerebral ischemia, sickle cell disease, detection of right-to-left shunts, subarachnoid hemorrhage, periprocedural or surgical monitoring, and brain death. We present the role of TCD in acute cerebrovascular ischemia, sonothrombolysis, and intracranial stenosis.

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Background: Radiosurgery seems to be a very appealing option for patients having a small petrous apex meningioma and presenting with trigeminal neuralgia, presumably because of the lower risk and cost involved. The aim of this study was to analyze the results of our surgical series of petrous apex meningioma presenting with trigeminal neuralgia, and to determine the efficacy of neurosurgical treatment with regard to pain control. The procedure-related complication and morbidity rates were also evaluated. Materials and Methods: This is a retrospective study of 17 patients with a small (<3 cm) petrous apex meningioma. The included patients were refractory to medical treatment for trigeminal neuralgia and were deemed as surgical candidates. Postoperatively, the patients were assessed for pain relief according to the Barrow Neurological Institute (BNI) scale. A P value of less than 0.05 was considered significant. Magnetic resonance imaging was also performed after 6 weeks to assess the radicality of resection. Results: In a median follow-up of approximately 2 years, the study showed that 14 of the 17 (82.4%) patients had complete pain relief, with very low morbidity and no mortality, and 100% tumor control. According to the Barrow Neurological Institute (BNI) scale for the assessment of postoperative pain relief, 52.9, 23.5, 5.9, 11.8, and 5.9% of patients had grades I, II, IIIa, IIIb, and IV in terms of their pain relief, respectively. Conclusions: In our population of patients, surgery proved to be successful in providing symptomatic relief, with low morbidity and no mortality, and was comparable with other studies involving the minimally invasive modalities. However, these results warrant further follow-up, with recruitment of more patients, to demonstrate whether or not, surgery should be the primary choice of treatment in this subgroup of patients.

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Aims: There is no report on the factors affecting the resolution of symptoms related to meningitis during treatment of tuberculous meningitis (TBM). Thus, we examined the factors associated with early therapeutic responses. Materials and Methods: This multicenter study included 507 patients with microbiologically confirmed TBM. However, 94 patients eligible for the analysis were included in this study from 24 centers. Six out of 94 patients died and the statistical analysis was performed with 88 survivors. Early and late responder groups were compared in the statistical analysis. P < 0.05 were considered to show a significant difference. Results: In the multivariate analysis, the presence of vasculitis (P = 0.029, OR = 10.491 [95% CI, 1.27–86.83]) was found to be significantly associated with a delayed fever response whereas hydrocephalus was associated with altered mental status for >9 days duration (P = 0.005, OR = 5.740 [95% CI, 1.68–19.57]). According to linear regression analysis, fever was significantly persisting (>7 days) in the presence of vasculitis (17.5 vs. 7, P< 0.001) and hydrocephalus (11 vs. 7, P = 0.029). Hydrocephalus was significantly associated with persisting headache (21 vs. 12, P = 0.025), delayed recovery of consciousness (19.5 vs. 7, P = 0.001), and a delay in complete recovery (21 vs. 14, P = 0.007) in the linear regression analysis. Following institution of treatment, the complaints seemed to disappear in up to 2 weeks among TBM survivors. Conclusions: In the absence of hydrocephalus or vasculitis, one week of anti-tuberculosis treatment seems to be adequate for the resolution of TBM symptoms. Hydrocephalus and vasculitis delay the resolution of TBM symptoms in response to antimycobacterial treatment.

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Background: Intracranial pressure monitoring (ICP) is considered as optional for management of severe traumatic brain injury (TBI) in children. Aims: This study was performed to determine whether ICP monitoring is beneficial in the managing severe TBI in children. Settings and Design: Neurosurgical intensive care unit (ICU) of a tertiary care referral center; prospective observational study. Materials and Methods: Children aged 16 years or less with severe TBI defined as “postresuscitation Glasgow Coma Scale (GCS) score of 8 or less admitted to an ICU” were enrolled. All children underwent standard treatment for TBI as indicated. ICP monitoring was done in 30 cases and was not done in 20 cases. The outcome in both the groups was assessed using Glasgow outcome scale. Statistical Analysis: The characteristics of the patients in the two groups were compared using independent sample T test for continuous variables and chi-square and Mann–Whitney test for nonparametric variables. Results: The children who did not undergo ICP monitoring required more number of doses of hyperosmolar agents. However, the duration of ventilation and length of ICU stay were significantly shorter in children who did not undergo ICP monitoring. The outcome was unfavorable in 16.7% of children who underwent ICP monitoring as compared with 55% of children who did not undergo ICP monitoring; this difference was significant. Conclusions: ICP-targeted therapy results in significantly better outcome in children with severe TBI.

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Hereditary myoclonus-dystonia (DYT 11) is caused by the epsilon-sarcoglycan (SGCE) mutation. The clinical details and investigations of cases diagnosed with myoclonus-dystonia were reviewed. We describe 5 patients (3 families) with myoclonus-dystonia diagnosed at our center. Majority of the patients had the classical phenotype with few atypical features (adult-onset disease and onset in lower limbs). Four patients carried a mutant variant in the SGCE-gene. A diagnosis of myoclonus-dystonia should be considered in cognitively normal patients with early-onset myoclonus (that may occur both at rest and/or action) with or without dystonia and with or without psychiatric-disturbances.

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Background: Previous studies have shown disturbances in an individual monoamine pathway but have not studied metabolic pathways at the onset and progression of metabolic syndrome (MetS). Aims, Settings, and Design: The aim of this study was to investigate the effect of high-fat simple carbohydrate (HFSC) diet on central (hypothalamic) and peripheral (plasma and urine) monoamine metabolic pathways during the development of metabolic syndrome in C57BL/6J mice. Materials and Methods: Monoamines were analyzed in the 1^st, 2^nd, 3^rd, 4^th, and 5^th month after feeding mice the HFSC diet or the control diet using the high performance liquid chromatography (HPLC) system (Shimadzu, Japan). Data was statistically analyzed (by Student's t-test) using Graph Pad Instat Version 3.1. Post statistical analysis, Bonferroni correction was applied to the results of 2^nd, 3^rd, 4^th, and 5^th month in order to calculate the correct error in the study. Results: Significantly lower hypothalamic, plasma, and urine dopamine, and higher hypothalamic and plasma levels of norepinephrine and normetanephrine levels were observed in the HFSC diet fed C57BL/6J mice as compared to the control diet fed C57BL/6J mice after 5 months of feeding. No consistent changes were observed in other brain regions. The turnover ratio indicated that the lower dopamine levels in the HFSC diet fed C57BL/6J mice was due to the increased formation of norepinephrine and homovanillic acid. Conclusion: HFSC diet impairs the central and peripheral dopaminergic and noradrenergic pathways in mice as evidenced by the disturbances in their hypothalamic, plasma, and urine levels and this might be one of the early factors contributing towards the development of the MetS.

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Background: Low back pain is caused by a variety of conditions. When conventional imaging failed, single-photon emission computed tomography (SPECT) was superior to scintigraphy in identifying the pathology. Injection therapies are often helpful in treating the pathology. Aim: To determine the cause of chronic low backache in individuals with normal conventional imaging (radiographs, computed tomography and magnetic resonance imaging), to determine the specific pathology using scintigraphic studies and diagnostic blocks; and, to treat the individuals with various spinal injection techniques and determine their efficacy. Material and Methods: All the patients having chronic back pain on presentation in the outpatient clinic from April 2013 to October 2014 were prospectively evaluated. Results: The 40 patients included in the study were followed up pre- and post operatively with various pain scales (visual analogue scale [VAS], Oswestry disability index [ODI] and short form health survery 36 [SF36]). The mean age at presentation was 41.3 years. Female patients formed the predominant subgroup in the study (57.5% female and 42.5% male patients). Pain indices like VAS and ODI were helpful in assessing the efficacy of spinal injections. Preoperative and postoperative pain scale assessment, supplemented by a SPECT evaluation of the sacroiliac and facet joints, showed a statistically significant difference, which correlated with clinically significant pain relief. Conclusions: SPECT imaging is helpful in diagnosing sacroiliac joint syndrome and facetal syndrome. Epidural injections were a better choice in cases of low backache, where clinically, the patient had no signs of sacroiliac joint syndrome and facetal syndrome. Spinal injections with steroid and local anaesthetic had better relief. Radiotracer uptake at the pain generating area is a good predictor of outcome. Image guided spinal injection improves the accuracy of the injection.

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The aim of the study was to critically review the clinical approach to distinguish the sensory and motor nerve fascicles of the peripheral nerve system and to explore potential novel techniques to meet the clinical needs. The principles and shortcomings of the currently used methods for identification of sensory and motor nerve fascicles, including nerve morphology, electrical stimulation, spectroscopy, enzymohistochemistry staining (acetylcholinesterase [AchE], carbonic anhydrase [CA] and choline acetyltransferase [ChAC] histochemistry staining methods), and immunochemical staining were systematically reviewed. The progress in diffusion tensor imaging, proteomic approaches, and quantum dots (QDs) assessment in clinical applications to identify sensory or motor fascicles has been discussed. Traditional methods such as physical and enzymohistochemical methods are not suitable for the precise differentiation of sensory and motor nerve fascicles. Immunohistochemical staining using AchE, CA, and ChAC is promising in differentiation of sensory and motor nerve fascicles. Diffusion tensor imaging can reflect morphological details of nerve fibers. Proteomics can reveal the dynamics of specific proteins discriminating sensory and motor fascicles. QDs, with their size-dependent optical properties, make them the ideal protein markers for identification of the sensory or motor nerves. Diffusion tensor imaging, proteomics and QDs-imaging will facilitate the clinical identification of motor and sensory nerve fascicles, help in improving surgical success rates and assist in postoperative functional recovery.

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Background: Respiratory muscle paralysis is a serious complication of Guillain–Barre syndrome (GBS). Factors that govern duration and recovery from respiratory paralysis are unclear. Aim: To correlate electrophysiological parameters in critically ill GBS with duration of mechanical ventilation and outcome at discharge. Materials and Methods: Data of a large cohort (n=93; M:F 59:34; mean age: 33.51+21.4 years) of critically-ill patients with GBS seen over one decade was retrospectively analyzed. Results: The duration of mechanical ventilation was <15 days (n = 38), 16–30 days (n = 24), and >30 days (n = 31). Majority of the patients had a demyelinating electrophysiology. Reduced amplitude or absent motor potentials correlated with requirement for longer duration of ventilation. Inexcitable sensory nerves were more common in patients who could be weaned off from the ventilator within 15 days. There was no relation between the conduction blocks in motor nerves and the duration of ventilation. Low amplitude of median nerve correlated with a poor outcome at hospital discharge as assessed by Hughes disability scale. Conclusion: Distinct patterns of electrophysiological abnormalities are noted in patients and they correlate with the duration of mechanical ventilation. Future studies to unravel the underlying pathophysiological processes that govern the patterns of progression and recovery in the critically ill patients with GBS will pave way for the development of better and more potent therapies that will hasten recovery, when combined with the prevalent treatment modalities including plasmapheresis and intravenous immunoglobulin.

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Background: Several chronic inflammatory disorders, such as rheumatoid arthritis and systemic lupus erythematosus, have been linked to an increased risk of cerebrovascular accident (CVA), but the data on polymyalgia rheumatica (PMR) remains unclear. Materials and Methods: We conducted a systematic review and meta-analysis of observational studies that reported odds ratio, relative risk, hazard ratio, or standardized incidence ratio comparing the risk of CVA in patients with PMR versus non-PMR controls. Pooled risk ratio and 95% confidence interval (CI) were calculated using a random-effect, generic inverse variance method of DerSimonian and Laird. Results: Three retrospective cohort studies and one cross-sectional study were identified and included in the data analysis. We found a significantly elevated CVA risk in patients with PMR, with the pooled risk ratio of 1.87 (95% CI, 1.43–2.43). The statistical heterogeneity was high, with an I² of 91%. Conclusions: Our study demonstrated a statistically significantly increased CVA risk among patients with PMR.

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There are only a few case reports comprising exclusively of os omovertebrale. Here, we discuss various types, varied clinical presentations, associated abnormalities, and management strategies of this abnormality. We retrospectively analyzed three patients with os omovertebrale and their clinical presentation, and also reviewed the limited available literature. Patients were evaluated clinically and radiologically to diagnose this abnormality as well as the associated abnormalities. Two patients were operated for neurological deficits attributed to this deformity. It is quite common to miss this abnormality when it is of osseocartilaginous or fibrous type, especially when it is asymptomatic and not associated with Sprengel's scapula. By analyzing our patients and other reported cases, we have proposed a classification system. In addition, we discuss varied clinical presentations and their practical application. Os omovertebrale is a rare abnormality. It should be kept in mind and managed when encountered in clinical practice. The classification and clinicoradiological correlations described here can be useful to individualize management issues.

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High quality publications, patient care and educational standard have made Sanjay Gandhi Postgraduate Institute of Medical Sciences (SGPGIMS), Lucknow, India a favored destination for the patients and medical students, for getting treatment and education, respectively. The current article traces the history and milestone of the Department of Neurology, SGPGIMS, Lucknow and summarizes its achievements and facilities. The uniqueness of the department lies in being sensitive to the expectation of the patients, students and its faculty's own aspirations in research, keeping the patient as the center of focus.

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Background: The fornix is the main efferent tract from the hippocampus and is an important component of the memory pathways. Variations in the anatomy of the fornix are not commonly encountered. Materials and Methods: The anatomy of the fornix was studied in 30 cadavers of normal adult healthy males who had died in road accidents. The full extent of the hippocampus was prosected up to the tail under the magnoscope. Results: In 10 of the 30 brains, the crura and the body of fornix were bilaterally broad and flat like a sheet, rather than the usual compact bundle, forming a cobra-like hood over the roof of the third ventricle. The maximum width was approximately 16 mm on the right side (mean: 11.7 mm) and 11 mm on the left (mean: 8.5mm). Conclusion: Knowledge of this variation will be useful during the transcallosal approach to third ventricle tumors, especially while going subchoroidal, because an unexpected lateral span of the fornix in the surgical corridor can result in inadvertent injury to it, leading to memory defects.

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