Journal of Movement Disorders

Nitish Kamble

19 Articles

Knowledge, Attitudes and Perceptions of Genetic Testing Among Patients With Movement Disorders, Their Caregivers and Health Care Professionals: Sneha D. Kamath, Vikram V. Holla, Nitish Kamble, Rohan R. Mahale, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2024;17(3):336-338. Published online March 27, 2024; DOI: https://doi.org/10.14802/jmd.24034

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Haloperidol in Managing DYT-TOR1A Dystonia: Unveiling a Dramatic Therapeutic Response: Pavankumar Katragadda, Vikram V. Holla, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2024;17(3):342-344. Published online April 9, 2024; DOI: https://doi.org/10.14802/jmd.24029

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Genetically Proven Ataxia With Vitamin E Deficiency With Predominant Cervicobrachial Dystonic Presentation: A Case Report From India: Vikram V. Holla, Sandeep Gurram, Sneha D. Kamath, Gautham Arunachal, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2024;17(2):220-222. Published online December 18, 2023; DOI: https://doi.org/10.14802/jmd.23227

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Impact of Deep Brain Stimulation on Non-Motor Symptoms in Parkinson’s Disease: Tanaya Mishra, Nitish Kamble, Amitabh Bhattacharya, Ravi Yadav, Dwarakanath Srinivas, Pramod Kumar Pal; J Mov Disord. 2024;17(2):245-247. Published online March 13, 2024; DOI: https://doi.org/10.14802/jmd.23247

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“Face of the Giant Panda” Sign and Bilateral Thalamic Hyperintensity in Isoniazid-Induced Ataxia: Vikram V. Holla, Manjunath Netravathi, Nitish Kamble, Jitender Saini, Pramod Kumar Pal; J Mov Disord. 2024;17(1):99-101. Published online August 2, 2023; DOI: https://doi.org/10.14802/jmd.23112

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Clinical and neuroimaging features in neurological Wilson’s disease with claustrum lesions
Xin-feng Ma, Ling-yun Fan, Ping Jin, Kang Lin, Guang-an Tong, Gong-qiang Wang
Scientific Reports.2024;[Epub] CrossRef

KMT2B-Related Dystonia in Indian Patients With Literature Review and Emphasis on Asian Cohort: Debjyoti Dhar, Vikram V Holla, Riyanka Kumari, Neeharika Sriram, Jitender Saini, Ravi Yadav, Akhilesh Pandey, Nitish Kamble, Babylakshmi Muthusamy, Pramod Kumar Pal; J Mov Disord. 2023;16(3):285-294. Published online June 13, 2023; DOI: https://doi.org/10.14802/jmd.23035

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Objective
aaMutations in the KMT2B gene have been identified in patients previously diagnosed with idiopathic dystonia. Literature on KMT2B-related dystonia is sparse in the Indian and Asian populations.
Methods
aaWe report seven patients with KMT2B-related dystonia studied prospectively from May 2021 to September 2022. Patients underwent deep clinical phenotyping and genetic testing by whole-exome sequencing (WES). A systematic literature search was performed to identify the spectrum of previously published KMT2B-related disorders in the Asian subcontinent.
Results
aaThe seven identified patients with KMT2B-related dystonia had a median age at onset of four years. The majority experienced onset in the lower limbs (n = 5, 71.4%), with generalization at a median duration of 2 years. All patients except one had complex phenotypes manifesting as facial dysmorphism (n = 4), microcephaly (n = 3), developmental delay (n = 3), and short stature (n = 1). Magnetic resonance imaging (MRI) abnormalities were present in four cases. WES revealed novel mutations in the KMT2B gene in all patients except one. Compared to the largest cohort of patients with KMT2B-related disorders, the Asian cohort, comprising 42 patients, had a lower prevalence of female patients, facial dysmorphism, microcephaly, intellectual disability, and MRI abnormalities. Protein-truncating variants were more prevalent than missense variants. While microcephaly and short stature were more common in patients with missense mutations, facial dysmorphism was more common in patients with truncating variants. Deep brain stimulation, performed in 17 patients, had satisfactory outcomes.
Conclusion
aaThis is the largest series of patients with KMT2B-related disorders from India, further expanding the clinico-genotypic spectrum. The extended Asian cohort emphasizes the unique attributes of this part of the world.

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Clinical and genetic profile of patients with dystonia: An experience from a tertiary neurology center from India
Debjyoti Dhar, Vikram V. Holla, Riyanka Kumari, Ravi Yadav, Nitish Kamble, Babylakshmi Muthusamy, Pramod Kumar Pal
Parkinsonism & Related Disorders.2024; 120: 105986. CrossRef

Dystonic Opisthotonus in Kufor-Rakeb Syndrome: Expanding the Phenotypic and Genotypic Spectrum: Sandeep Gurram, Vikram V Holla, Riyanka Kumari, Debjyoti Dhar, Nitish Kamble, Ravi Yadav, Babylakshmi Muthusamy, Pramod Kumar Pal; J Mov Disord. 2023;16(3):343-346. Published online July 25, 2023; DOI: https://doi.org/10.14802/jmd.23098

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Estimation of Ambulation and Survival in Neurodegeneration with Brain Iron Accumulation Disorders
Elahe Amini, Mohammad Rohani, Anthony E. Lang, Zahra Azad, Seyed Amir Hassan Habibi, Afagh Alavi, Gholamali Shahidi, Maziar Emamikhah, Ahmad Chitsaz
Movement Disorders Clinical Practice.2023;[Epub] CrossRef

Movement Disorders Associated With Radiotherapy and Surgical Procedures: Bharath Kumar Surisetti, Shweta Prasad, Vikram Venkappayya Holla, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2023;16(1):42-51. Published online January 12, 2023; DOI: https://doi.org/10.14802/jmd.22092

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Abstract PDF

Occasionally, movement disorders can occur following interventional procedures including but not limited to radiotherapy, dental procedures, and cardiac, cerebral and spinal surgeries. The majority of these disorders tend to be unexpected sequelae with variable phenomenology and latency, and they can often be far more disabling than the primary disease for which the procedure was performed. Owing to poor knowledge and awareness of the problem, delays in diagnosing the condition are common, as are misdiagnoses as functional movement disorders. This narrative review discusses the phenomenology, pathophysiology, and potential treatments of various movement disorders caused by interventional procedures such as radiotherapy and neurological and non-neurological surgeries and procedures.

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Biofeedback Endurance Training for Gait Rehabilitation in Parkinson’s Disease: a Non-Randomized Controlled Study
Olga V. Guseva, Natalia G. Zhukova
Bulletin of Rehabilitation Medicine.2024; 22(6): 21. CrossRef
Myoclonus: an update
Betsy Thomas, Steven J. Frucht
Current Opinion in Neurology.2024; 37(4): 421. CrossRef

Myoclonus-Dystonic Presentation of Childhood Onset DYT-GCH1: A Report From India: Praveen Sharma, Vikram V Holla, Sandeep Gurram, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2023;16(1):101-103. Published online January 12, 2023; DOI: https://doi.org/10.14802/jmd.22106

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Myoclonus: an update
Betsy Thomas, Steven J. Frucht
Current Opinion in Neurology.2024; 37(4): 421. CrossRef
A Genetics Pearl for Counseling Patients with Epsilon-Sarcoglycan Myoclonus-Dystonia
Alissa S. Higinbotham, Suzanne D. DeBrosse, Camilla W. Kilbane
Tremor and Other Hyperkinetic Movements.2023;[Epub] CrossRef

Utility of Clinical Exome Sequencing in Dystonia: A Single-Center Study From India: Vikram Venkappayya Holla, Koti Neeraja, Albert Stezin, Shweta Prasad, Bharat Kumar Surisetti, Manjunath Netravathi, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2022;15(2):156-161. Published online March 16, 2022; DOI: https://doi.org/10.14802/jmd.21146

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Objective
With the use of next-generation sequencing in clinical practice, several genetic etiologies of dystonia have been identified. This study aimed to ascertain the utility of clinical exome sequencing (CES) in dystonia and factors suggestive of a genetic etiology.
Methods
This study was a retrospective chart review of patients with dystonia who had undergone CES for the evaluation of dystonia.
Results
Forty-eight patients (35 males, 46 families) with dystonia were studied, with a mean age at onset of 16.0 ± 14.1 (1–58) years. A pathogenic/likely pathogenic variant was found in 20 patients (41.7%) among which 14 patients (29.2%) carried a novel variant. CES was more likely to detect a genetic diagnosis in patients with an early age at onset, i.e., ≤ 20 years.
Conclusion
CES is a useful tool in the diagnostic evaluation of dystonia, with a yield of close to 40%. Patients with an earlier age at onset have a higher likelihood of having dystonia due to a genetic cause than those with a later age at onset.

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Dissecting genetic architecture of rare dystonia: genetic, molecular and clinical insights
Burcu Atasu, Javier Simón-Sánchez, Hasmet Hanagasi, Basar Bilgic, Ann-Kathrin Hauser, Gamze Guven, Peter Heutink, Thomas Gasser, Ebba Lohmann
Journal of Medical Genetics.2024; : jmg-2022-109099. CrossRef
Whole exome sequencing and clinical investigation of young onset dystonia: What can we learn?
Jong Hyeon Ahn, Ah Reum Kim, Woong-Yang Park, Jin Whan Cho, Jongkyu Park, Jinyoung Youn
Parkinsonism & Related Disorders.2023; 115: 105814. CrossRef

Long-Term Outcome of Hemimasticatory Spasm: Somdattaa Ray, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2022;15(2):146-150. Published online March 16, 2022; DOI: https://doi.org/10.14802/jmd.21067

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Objective
This study aims to identify the demographic, clinical, and therapeutic characteristics of four patients with hemimasticatory spasm (HMS) seen in our outpatient department over a period of 20 years.
Methods
We performed a retrospective chart review of four patients with HMS who visited outpatient services in the Department of Neurology from 2001 to 2020.
Results
The follow-up for all patients ranged from 2 years to 9 years. Three patients had facial or bucco-oral morphea. Two patients maintained long-term improvements in symptoms after being treated with botulinum toxin for 4–7 years, while one patient reported improvement in symptoms with treatment of carbamazepine that subsequently remitted after pregnancy.
Conclusion
This report highlights the long-term outcome of HMS in our patients. Our patients reported a significant reduction or complete resolution of symptoms after treatment, and eventually, two patients were asymptomatic while off treatment.

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Hemimasticatory spasm: a series of 17 cases and a comprehensive review of the literature
Kazuya Yoshida
Frontiers in Neurology.2024;[Epub] CrossRef
Hemimasticatory Spasm Treated With Muscle Afferent Block Therapy and Occlusal Splint
Kazuya Yoshida
Journal of Movement Disorders.2024; 17(2): 230. CrossRef
Peripherally induced movement disorders in the stomatognathic system after oral surgical or dental procedures
Kazuya Yoshida
Oral and Maxillofacial Surgery.2024;[Epub] CrossRef
Peripherally-induced Movement Disorders: An Update
Abhishek Lenka, Joseph Jankovic
Tremor and Other Hyperkinetic Movements.2023;[Epub] CrossRef

Clinical and Imaging Profile of Patients with Joubert Syndrome: Bharath Kumar Surisetti, Vikram Venkappayya Holla, Shweta Prasad, Koti Neeraja, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2021;14(3):231-235. Published online September 16, 2021; DOI: https://doi.org/10.14802/jmd.21066

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Objective
Joubert syndrome (JS) is a rare syndrome characterized by ataxia and the molar tooth sign (MTS) on imaging. The present study aims to explore the clinical and radiological features in a cohort of patients with JS.
Methods
This was a retrospective chart review of patients with JS evaluated by movement disorder specialists.
Results
Nine patients were included in the study. All patients had facial dysmorphism and ocular abnormalities, and 4 patients had dystonia. Ocular tilt reaction and alternate skew deviation (66%) were the most common ocular abnormalities. Horizontally aligned superior cerebellar peduncles were observed in all four patients with diffusion tensor imaging, with a lack of decussation in three. Exome sequencing performed in four patients revealed novel variants in the MKS1, CPLANE1, and PIBF1 genes.
Conclusion
Facial dysmorphism, ocular abnormalities and classical imaging findings were observed in all patients with JS. Apart from ataxia, dystonia and myoclonus are other movement disorders observed in JS.

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Joubert Sendromlu Hastanın Diş Tedavilerinde Anestezi Yönetimi: Olgu Sunumu
Mehmet Akif Yılmaz, Feyza Şimşek, Havva Yavuz, Nuray Uzun, Murat Büyüksefil, Fatih Şengül, Elif Oral Ahıskalıoğlu
Atatürk Üniversitesi Tıp Fakültesi Cerrahi Tıp Bilimleri Dergisi.2024; 3(1): 15. CrossRef
Joubert Syndrome Presenting With Levodopa-Responsive Parkinsonism
Jin Hwangbo, Ki-Seok Park, Hyun Sung Kim, Jae-Hwan Choi, Jae-Hyeok Lee
Journal of Movement Disorders.2024; 17(3): 339. CrossRef
Progressive Dysphagia in Joubert Syndrome: A Report of a Rare Case
Courteney Castellano, Jomaries O Gomez Rosado, Alexandra Witt, Rebecca Simon, Dyadin Esharif
Cureus.2024;[Epub] CrossRef
Clinical and genetic characteristics of 36 children with Joubert syndrome
Yan Dong, Ke Zhang, He Yao, Tianming Jia, Jun Wang, Dengna Zhu, Falin Xu, Meiying Cheng, Shichao Zhao, Xiaoyi Shi
Frontiers in Pediatrics.2023;[Epub] CrossRef
CEP104 gene may involve in the pathogenesis of a new developmental disorder other than joubert syndrome
Reza Shervin Badv, Mojdeh Mahdiannasser, Maryam Rasoulinezhad, Laleh Habibi, Ali Rashidi-Nezhad
Molecular Biology Reports.2022; 49(8): 7231. CrossRef
Congenital Brain Malformations: An Integrated Diagnostic Approach
Bimal P. Chaudhari, Mai-Lan Ho
Seminars in Pediatric Neurology.2022; 42: 100973. CrossRef

Patient Knowledge, Attitude and Perceptions towards Botulinum Toxin Treatment for Movement Disorders in India: Thavasimuthu Nisha Mol, Nitish Kamble, Vikram V. Holla, Rohan Mahale, Pramod Kumar Pal, Ravi Yadav; J Mov Disord. 2021;14(2):126-132. Published online April 26, 2021; DOI: https://doi.org/10.14802/jmd.20094

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Abstract PDF Supplementary Material: Objective
There is limited literature on the knowledge, attitude, and perceptions (KAP) of botulinum toxin (BoNT) treatment among patients and caregivers. The objective of this study was to assess the KAP in patients undergoing BoNT treatment for movement disorders.
Methods
One hundred patients with movement disorders from National Institute of Mental Health and Neurosciences Hospital in Bengaluru, South India, were recruited. The patients underwent demographic, clinical, and Patient Knowledge Questionnaire on Botulinum Toxin Use in Movement Disorders (PKQ-BMD)-based evaluations.
Results
The mean age of patients at the time of presentation was 47.97 ± 14.19 years (range, 12–79). Of all the patients, 26 (28%) patients were anxious, and 86% of these patients were reassured after appropriate counseling. There were 83 (89%) patients who found BoNT to be a costlier option. Education and previous Internet searches influenced positive performance in the “knowledge” domain and overall PKQ-BMD scores. The “number of injections” was also positively correlated with KAP performance.
Conclusion
This study showed that knowledge and perceptions about BoNT treatment need to be further improved. Wider availability of the Internet has provided a positive impact on patients’ and carers’ KAP. Internet-based information, higher educational qualifications of the patients, and a higher number of BoNT injection sessions are the most important predictors of satisfactory KAP related to BoNT injection treatment in patients with movement disorders.

Knowledge, Attitude, and Perceptions about Deep Brain Stimulation for Parkinson’s Disease: Observations from a Single Indian Center: Shweta Prasad, Amitabh Bhattacharya, Lulup Kumar Sahoo, Dhruv Batra, Nitish Kamble, Ravi Yadav, Dwarakanath Srinivas, Pramod Kumar Pal; J Mov Disord. 2021;14(1):60-64. Published online September 21, 2020; DOI: https://doi.org/10.14802/jmd.20066

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Objective
Willingness to undergo deep brain stimulation (DBS) among patients with Parkinson’s disease (PD) and their overall satisfaction with the procedure is highly dependent upon expectations, which are based on the core concepts of knowledge, attitude and perceptions. The present study aims to evaluate these factors in patients and caregivers with PD from a single tertiary care hospital in India.
Methods
A structured questionnaire designed to assess the knowledge, attitude and perceptions about DBS in PD was administered to 400 patients with PD and their caregivers.
Results
A very small proportion of patients and caregivers were aware of DBS. Even those who claimed to be aware of DBS were inadequately informed and had incorrect knowledge, which led to wrong attitudes and perceptions.
Conclusion
There are very significant knowledge gaps and misconceptions regarding DBS among patients with PD and caregivers. Adequate and appropriate education is necessary to clarify these misconceptions to avoid the development of unrealistic expectations and poor satisfaction.

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Know DBS: patient perceptions and knowledge of deep brain stimulation in Parkinson’s disease
Meagen Salinas, Umar Yazdani, Austin Oblack, Bradley McDaniels, Nida Ahmed, Bilal Haque, Nader Pouratian, Shilpa Chitnis
Therapeutic Advances in Neurological Disorders.2024;[Epub] CrossRef
Assessment of Knowledge and Perception Regarding Deep Brain Stimulation Among Medical Students in Saudi Arabia
Sarah S Aldharman, Fadi A Munhish, Haila A Alabssi, Maryam A Alamer, Fay A Althunayyan, Majidah H Halawi, Shireen H Elfaham, Taghreed A Alsinani, Saud A Alnaaim
Cureus.2023;[Epub] CrossRef
Deep Brain Stimulation for Parkinson's Disease‐the Developing World's Perspective
Khushboo Patel, Divya Kalikavil Puthanveedu, Asish Vijayaraghavan, Krishnakumar Kesavapisharady, Gangadhara Sarma, Sankara P. Sarma, Syam Krishnan
Movement Disorders Clinical Practice.2023; 10(12): 1750. CrossRef
How Parkinson’s patients in the USA perceive deep brain stimulation in the 21st century: Results of a nationwide survey
Daniel Alfonso, Laura Y. Cabrera, Christos Sidiropoulos, Fei Wang, Harini Sarva
Journal of Clinical Neuroscience.2022; 95: 20. CrossRef
Caregiver Burden in Partners of Parkinsonian Patients with Deep Brain Stimulation
Eileen Gülke, Monika Pötter-Nerger
Brain Sciences.2022; 12(2): 238. CrossRef

Sialidosis Type I without a Cherry Red Spot— Is There a Genetic Basis?: Koti Neeraja, Vikram Venkappayya Holla, Shweta Prasad, Bharath Kumar Surisetti, Kempaiah Rakesh, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2021;14(1):65-69. Published online October 31, 2020; DOI: https://doi.org/10.14802/jmd.20083

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Sialidosis is an inborn error of metabolism due to a defect in the NEU1 gene and manifests as two phenotypes: mild type I and severe type II. The cherry red spot (CRS) is a characteristic feature in both types of sialidosis; reports of sialidosis without a CRS are rare. We report two cases of genetically confirmed sialidosis type I with a typical presentation of progressive cortical myoclonus and ataxia but without the CRS. A previously reported homozygous pathogenic variant p.Arg294Cys was detected in the first case, and a novel homozygous pathogenic variant p.Arg305Pro was detected in the second case. Additionally, we reviewed the literature describing cases with similar mutations to find a genetic basis for the absence of a CRS. Milder mutation of both alleles detected in both patients may be the reason for the absence of a CRS.

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Unique clinical and electrophysiological features in the peripheral nerve system in patients with sialidosis – a case series study
Sung-Ju Hsueh, Chin-Hsien Lin, Ni-Chung Lee, Tung-Ming Chang, Sung-Pin Fan, Wan-De Huang, Yea-Huey Lin, Li-Kai Tsai, Yin-Hsiu Chien, Ming-Jen Lee, Wuh-Liang Hwu, Hsueh Wen Hsueh, Chih-Chao Yang
Orphanet Journal of Rare Diseases.2024;[Epub] CrossRef
Genotype-phenotype correlation and founder effect analysis in southeast Chinese patients with sialidosis type I
Yi-Chu Du, Ling-Han Ma, Quan-Fu Li, Yin Ma, Yi Dong, Zhi-Ying Wu
Orphanet Journal of Rare Diseases.2024;[Epub] CrossRef
A fuzzy rule based machine intelligence model for cherry red spot disease detection of human eyes in IoMT
Kalyan Kumar Jena, Sourav Kumar Bhoi, Debasis Mohapatra, Chittaranjan Mallick, Kshira Sagar Sahoo, Anand Nayyar
Wireless Networks.2023; 29(1): 247. CrossRef

Deep Brain Stimulation Battery Exhaustion during the COVID-19 Pandemic: Crisis within a Crisis: Vikram Venkappayya Holla, Koti Neeraja, Bharath Kumar Surisetti, Shweta Prasad, Nitish Kamble, Dwarakanath Srinivas, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2020;13(3):218-222. Published online August 31, 2020; DOI: https://doi.org/10.14802/jmd.20073

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Abstract PDF

Objective
The novel coronavirus disease (COVID-19) pandemic and public health measures to control it have resulted in unique challenges in the management of patients with deep brain stimulation (DBS). We report our experience with the management of acute worsening of symptoms due to battery exhaustion in 3 patients with DBS.
Methods
Patients with DBS for movement disorders who visited the emergency room due to battery exhaustion during the nationwide lockdown from April to May 2020 were included.
Results
Two patients with subthalamic nucleus-DBS for Parkinson’s disease (PD) and one with globus pallidus interna-DBS for generalized dystonia presented with acute worsening of symptoms due to battery exhaustion. Urgent battery replacement was performed in both patients with PD. The patient with generalized dystonia was managed with medication adjustment as he chose to defer battery replacement.
Conclusion
DBS battery replacement can be an emergency. Decisions regarding DBS battery replacement should be individualized during this COVID-19 pandemic.

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Lessons learned during COVID-19 pandemic, a worldwide survey: evolution of global neurosurgical practice
Harsh DEORA, Amol RAHEJA, Shashwat MISHRA, Vivek TANDON, Edoardo AGOSTI, Pierlorenzo VEICESCHI, Kanwaljeet GARG, Vikas NAIK, Shweta KEDIA, Rajesh MEENA, Satya S. MUNJAL, Bipin CHAURASIA, Jack WELLINGTON, Davide LOCATELLI, Marco M. FONTANELLA, Manmohan SIN
Journal of Neurosurgical Sciences.2024;[Epub] CrossRef
Akinetic crisis and withdrawal syndromes: guideline “Parkinson’s disease” of the German Society of Neurology
Monika Pötter-Nerger, Matthias Löhle, Günter Höglinger
Journal of Neurology.2024;[Epub] CrossRef
Effects of COVID-19 on Synaptic and Neuronal Degeneration
Mohammed S. Alqahtani, Mohamed Abbas, Mohammad Y. Alshahrani, Khulud Alabdullh, Amjad Alqarni, Fawaz F. Alqahtani, Layal K. Jambi, Adnan Alkhayat
Brain Sciences.2023; 13(1): 131. CrossRef
Needs and Perceptions of Patients With Dystonia During the COVID-19 Pandemic: A Qualitative Framework Analysis of Survey Responses From Italy
Vittorio Rispoli, Matías Eduardo Díaz Crescitelli, Francesco Cavallieri, Francesca Antonelli, Stefano Meletti, Luca Ghirotto, Franco Valzania
Frontiers in Neurology.2022;[Epub] CrossRef
Movement Disorder Emergencies
Ishita Desai, Niraj Kumar
Annals of Indian Academy of Neurology.2022; 25(5): 801. CrossRef
Spectrum of Movement Disorder Emergencies in a Tertiary Care Center in India
Abhishek P. Bhoyar, Rohan Mahale, Nitish Kamble, Vikram Holla, Pramod Kumar Pal, Ravi Yadav
Annals of Indian Academy of Neurology.2022; 25(5): 890. CrossRef
Parkinsonism hyperpyraexia syndrome in Parkinson's disease patients undergoing deep brain stimulation: An indirect consequence of COVID-19 lockdowns
Onanong Phokaewvarangkul, Sasivimol Virameteekul, Roongroj Bhidayasiri
Parkinsonism & Related Disorders.2021; 87: 39. CrossRef
An Investigation Into Miniaturised Closed-Loop DBS Devices
Dean M. Corva, Scott D. Adams, Kevin E. Bennet, Parastoo Hashemi, Michael Berk, Abbas Z. Kouzani
IEEE Transactions on Medical Robotics and Bionics.2021; 3(3): 671. CrossRef
Impact of COVID-19 Pandemic on Parkinson's Disease
Niraj Kumar, Ravi Gupta
Annals of Indian Academy of Neurology.2021; 24(2): 121. CrossRef
Effects of COVID-19 Lockdown on Movement Disorders Patients With Deep Brain Stimulation: A Multicenter Survey
Carla Piano, Francesco Bove, Tommaso Tufo, Isabella Imbimbo, Danilo Genovese, Alessandro Stefani, Massimo Marano, Antonella Peppe, Livia Brusa, Rocco Cerroni, Francesco Motolese, Enrico Di Stasio, Marianna Mazza, Antonio Daniele, Alessandro Olivi, Paolo C
Frontiers in Neurology.2020;[Epub] CrossRef

The Non-Motor Symptom Profile of Progressive Supranuclear Palsy: Sudhakar Pushpa Chaithra, Shweta Prasad, Vikram Venkappayya Holla, Albert Stezin, Nitish Kamble, Ravi Yadav, Pramod Kumar Pal; J Mov Disord. 2020;13(2):118-126. Published online April 6, 2020; DOI: https://doi.org/10.14802/jmd.19066

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Abstract PDF

Objective
Non-motor symptoms (NMSs) significantly contribute to increased morbidity and poor quality of life in patients with parkinsonian disorders. This study aims to explore the profile of NMSs in patients with progressive supranuclear palsy (PSP) using the validated Non-Motor Symptom Scale (NMSS).
Methods
Seventy-six patients with PSP were evaluated in this study. Motor symptoms and NMSs were evaluated using the PSP Rating Scale (PSPRS), Unified Parkinson’s Disease Rating Scale-III, Montreal Cognitive Assessment, Hamilton Depression (HAMD) and Anxiety Rating Scales, Parkinson’s Disease Sleep Scale (PDSS) and NMSS. NMS severity and prevalence were also compared between patients with PSP-Richardson syndrome (PSP-RS) and those with PSP-parkinsonism.
Results
All subjects in this cohort reported at least 2 NMSs. The most prevalent NMSs in patients with PSP were in the domains of sleep/fatigue, mood/cognition, and sexual function. The least prevalent NMSs were in the domains of cardiovascular including falls, and perceptual problems/hallucinations. Significant correlations were observed between the NMSS scores and HAM-D, PDSS, PSPRS scores and PSPRS sub-scores. The severity of NMSs was unrelated to the duration of illness. Patients with PSP-RS reported a higher severity of drooling, altered smell/taste, depression and altered interest in sex and a higher prevalence of sexual dysfunction.
Conclusion
NMSs are commonly observed in patients with PSP, and the domains of sleep, mood and sexual function are most commonly affected. These symptoms contribute significantly to disease morbidity, and clinicians should pay adequate attention to identifying and addressing these symptoms.

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Phenotypic Spectrum of Progressive Supranuclear Palsy: Clinical Study and Apolipoprotein E Effect
Amina Nasri, Ikram Sghaier, Anis Neji, Alya Gharbi, Youssef Abida, Saloua Mrabet, Amina Gargouri, Mouna Ben Djebara, Imen Kacem, Riadh Gouider
Journal of Movement Disorders.2024; 17(2): 158. CrossRef
Autonomic dysfunction in progressive supranuclear palsy
Francesca Baschieri, Maria Vitiello, Pietro Cortelli, Giovanna Calandra-Buonaura, Francesca Morgante
Journal of Neurology.2023; 270(1): 109. CrossRef
PDQ-8: A Simplified and Effective Tool Measuring Life Quality in Progressive Supranuclear Palsy
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Journey through ARSACS: Insights from a case series of seven patients - A single centre study and review of Indian cohort: Mit Ankur Raval, Vikram V Holla, Nitish Kamble, Gautham Arunachal, Babylakshmi Muthusamy, Jitender Saini, Ravi Yadav, Pramod Kumar Pal; Received July 3, 2024 Accepted August 29, 2024 Published online August 29, 2024; DOI: https://doi.org/10.14802/jmd.24154 [Accepted]

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Abstract PDF: Background
In this study we describe the clinical, and investigations profile of 7 cases of autosomal-recessive spastic-ataxia of Charlevoix-Saguenay (ARSACS).
Methods
We performed retrospective chart review of genetically proven cases of ARSACS from our database. Additionally, we reviewed literature for reported cases of ARSACS from India.
Result
All seven patients had onset within the first-decade. As per the available data, all had walking difficulty (7/7), spastic-ataxia (7/7), classical neuroimaging findings (7/7), sensory-motor demyelinating polyneuropathy (6/6), abnormal evoked-potentials (5/5) and thickened retinal nerve fiber layer (3/3). Exome sequencing revealed 8 pathogenic/likely-pathogenic unique variants (6 novel) in SACS gene. Additional 21 cases (18 families) of ARSACS that could be identified from India had similar clinical and investigational findings. The most common c.8793delA variant may have a founder effect.
Conclusion
Our series adds to the previously reported cases of ARSACS from India and expands the genetic spectrum by adding 6 novel variants.

Clinico-genetic profile of seven patients with PARK-PINK1: A case series from a tertiary care centre from India and review of literature: Aravind Gunasekaran, Vikram V Holla, Prashant Phulpagar, Sneha D Kamath, Nitish Kamble, Ravi Yadav, Babylakshmi Muthusamy, Pramod K Pal; Received July 8, 2024 Accepted September 17, 2024 Published online September 19, 2024; DOI: https://doi.org/10.14802/jmd.24157 [Accepted]

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Abstract PDF: Background
Recessive variants in the PINK1 gene is a known cause of early-onset Parkinson’s disease (EOPD).
Objective
To describe the clinical features and genetic profile of patients of PARK-PINK1.
Methods
Retrospective chart review of demographic, clinical and genetic details of patients carrying biallelic PINK1 variants from our database.
Result
Seven cases were recruited with median age at onset 33 years (Range: 20-49). All had asymmetrical onset, tremor in four, abnormal posturing in two and slowness in one patient. Parkinsonism phenotype was noted in six patients (with dystonia in four) and isolated dystonia in one. Among 6 patients with parkinsonism, five had rest tremor, all had good levodopa-response, and four had motor-fluctuation with choreiform-dyskinesia. Exome-sequencing revealed bi-allelic pathogenic/likely pathogenic variants in all of which five were novel.
Conclusion
PARK-PINK1 presents as an EOPD with tremor-predominant phenotype, good levodopa-responsiveness, early motor fluctuation and dyskinesia. We describe five novel variants in PINK1 gene.

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