Dr. (Prof.) P. N. Renjen, graduated from the Gandhi Medical College, Osmania University Hyderabad and did his DM Neurology from one of the most prestigious Institutes of the country - The National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore where he received his Neurology training. Dr. Renjen is a fellow of the Royal College of Physicians & Surgeons of Glasgow UK & Fellow of Royal College of Physicians Edinburgh & Ireland. He is a fellow of the American Academy of Neurology and elected member of National Academy of Medical Sciences. He has been delivering scientific lectures all over the country and has published more than 75 scientific papers in national and international journals of repute and has also written chapters in books. His special interest is vascular neurology.

He is Past-President of Delhi Neurological Association and also a nominated member EC of European Stroke Association. At present Dr. Renjen is a Sr. Consultant Neurologist & Advisor Academic at the Institute of Neurosciences Indraprastha Apollo Hospitals New Delhi- India

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1. Editorial Board – Cerebrovascular disease – (2019 to 2023)
2. F.R.C.P. I. Fellow Royal College of Physicians Ireland 21^st October 2017
3. Past President   - Delhi Neurological Association (DNA) 2016-17
4. Member European Stroke Organization (ESO Member 03157)
5. Member Executive Committee – 25^th European Stroke Conference 2015-2018
6. F.R.C.P. (Edin.) - Fellow Royal College of Physicians of Edinburgh (2010) (Fellowship No – 8983)  
7. F.R.C.P. - Fellow Royal College of Physician & Surgeons Glasgow U.K.
8. W.S.O. - World Stroke Organization (Membership number: 5211)
9. Member - The New York Academy of Sciences
10. Life Member - Global Association of Physician of Indian Origin
11. F. A. C. A. - American College of Angiology (USA)
12. American Academy of Neurology
13. E.F.N.S. - European Federation of Neurological Societies
14. Nepal Medical Council
15. Life Member:  Neurological Society of India – RNP-16
16. Life Member - Indian Stroke Association – LM 18
17. Life Member - Indian Academy of Neurology LM 649
18. Indian Epilepsy Association
19. F.I. A.M.S. - Fellow of the Indian Academy of Medical Sciences   
20. F.I.M.S.A.- Fellow International Medical Sciences Academy
21. Association of Physicians of India
22. Life Member – Delhi Neurological Association
23. Past President: IMA Karol Bagh. (2007)
24. Delhi Medical Council (20168)
25. Indian Medical Council.

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• Lifetime Achievement in Neurology Award by Delhi Neurological Association DNA 2020.
• World Stroke Day Award 2018 by Indian Stoke Association for the category of Individual Achievement at Annual Indian National Stroke Conference at Ahmedabad on 15^th March 2019.
• Innovations in Neurology “Stroke Social Media Awareness” Siemens-GAPIO Innovation Award by Global Association of Physician of Indian Origin December 2018.
• Adjunct title of Distinguished Clinical Tutor of AHERF – October 2018.
• F.R.C.P. I. Fellow Royal College of Physicians Ireland 21^st October 2017

• Awarded “Legends of Neurosciences” By Times Healthcare Achievers Award of the year in August 2017.  
• Adjunct Titles of Professors of Apollo Hospitals Educational and Research Foundation (AHERF) 2012
• F.R.C.P. (Edin.) Fellow Royal College of Physicians of Edinburgh – 2010
• “Glory of India Award” awarded by Indian Economic Forum in New Delhi on 27^th of February 2009
• F.R.C.P. (Fellow of the Royal College of Physician & Surgeons) Glasgow - U.K.
• “Eminent Medical Person Award” awarded by the Delhi Medical Association on the Doctor’s Day on the 1^st of July 2008 at New Delhi.
• “Chikitsa Rattan Award” awarded by the “International Study Circle (ISC)” at the time of the seminar on “Role of Medical Professionals Towards Society” on 25^th of July 2007 at New Delhi.
• Dr. Sushil Malik Oration on Acute Ischemic Stoke – IMA South Delhi Branch – Silver Jubilee year 2004.
• Delivered the Subhadra Nambudiri Memorial Lecture – 2004 on brain Stroke
• Dr. B. D. Kumar Oration Award – 2003 for commendable work in the field of Cerebro Vascular Disease by the IMA Karol Bagh Branch – New Delhi
• Scroll of Honour Award for the Contribution in the filed of cerebro vascular disease and brain stroke by the Delhi Medical Association 88^th Foundation day in 2002.
• Gem of India Award – 2002 All India Achievers Conference, New Delhi
• Dr. Amrit Lal Sachdev Essay Award (Karol Bagh Medical Society) New Delhi – 1999
• Dr. (Col) B. L. Tanjea Memorial Guest Lecture Award (Delhi Medical Association): 1998-99
• Man of the Year (American Bibliography Society) 1997.
• Heera Lal Oration Award (Indian Medical Association) Meerut Branch – 1994.

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1. Abhas Kumar, Pushpendra N Renjen, Dinesh Chaudhari, Malvika BG, Anjali Mishra Masquerading tinnitus – A dural AV Fistula. International Journal of Scientific Research January 2020:9 (1)1-2
2. Pushpendra N Renjen, Dinesh Chaudhari, Anjali Mishra Are there gender differences in management and prognosis after stroke International Journal of Scientific Research January 2020:9 (1)1
3. Gupta C, Chaudhari D, Renjen PN, Mishra A, Garg S, Pradhan R. Paraneoplastic limbic encephalitis mimicking acute herpetic encephalitis. Apollo Med 2019;16:240-3
4. Garg S, Chaudhari D, Renjen PN, Ahmad K, Kumar A, Pradhan R, et al. Cortical venous thrombosis – A case series and review of recent updates. Apollo Med 2019;16:232-5.
5. Rajendra Pradhan, Pushpendra N Renjen, Dinesh Chaudhari, Abhas Kumar, Charchit Gupta, Anjali Mishra Management of Hirayama disease – a case report. International Journal of Scientific Research December 2019:8 (12)1-3
6. Garg S, Chaudhari D, Renjen PN, Mishra A, Kumar A, Pradhan R. Adaravone: A new hope for patients with amyotrophic lateral sclerosis. Apollo Med 2019;16:157-60.
7. Renjen PN, Chaudhari DM, Mishra A, Kumar A. Neurological uses of cannabis. Apollo Med 2019;16:148-51.
8. Pushpendra N Renjen, Nitin Gupta, Dinesh Chaudhari, Abhas Kumar, Kamal Ahmad, Anjali Mishra Evaluation of serum homocysteine level in large vessel and small vessel subtypes of acute ischemic stroke patients admitted in a tertiary care hospital International Journal of Scientific Research September 2019:8 (09)1-3
9. Dinesh Chaudhari, Pushpendra N Renjen, Anjali Mishra, Abhas Kumar, Atypical variant of motor neuron disease (Vulpian Bernhardt/ flail arm) – a case series International Journal of Scientific Research September 2019:8 (09)1-2
10. Abhas Kumar, Pushpendra N Renjen, Dinesh Chaudhari, Anjali Mishra, An intriguing case of painful external ophthalmoplegia in a woman-bilateral tolosa-hunt syndrome International Journal of Scientific Research September 2019:8 (09)1-2
11. Rajednra Pradhan, Pushpendra N Renjen, Abhas Kumar, Dinesh Chaudhari, Shivangi Garg, Anjali Mishra, A diagnostic dilemma between polymyositis and dysferlinopathy - 'Diamond on Quadriceps' sign can be a savior International Journal of Scientific Research September 2019:8 (09)1-3
12. Charchit Gupta, Dinesh Chaudhari, Pushpendra N Renjen, Abhas Kumar, Anjali Mishra Autoimmune encephalitis -when to suspect? Indian Journal of applied  Research September 2019:8 (09)1-5
13. Pushpendra N Renjen, Dinesh Chaudhari, Anjali Mishra Abhas Kumar, Monogenic conditions associated with Ischemic Stroke International Journal of Scientific Research August 2019:8 (08)1-4
14. Dinesh Chaudhari, Pushpendra N Renjen, Anjali Mishra Abhas Kumar, Treatment perspectives for posterior circulation stroke International Journal of Scientific Research August 2019:8 (08)124
15. Chaudhari D, Renjen PN, Arora AS. Acute corpus callosum infarct. Neurol India 2019;67:930-1.
16. Pushpendra N Renjen, Dinesh Chaudhari, Abhas Kumar, Kamal Ahmad Air Pollution and Stroke International Journal of Scientific Research June 2019:8 (06)71-72
17. Malavika B. G., VSV Prasad, Pushpendra N Renjen, Abhas Kumar, Anjali Mishra, Dinesh Chaudhari- Plasma lactate and base excess levels as predictors of outcome in patients with sepsis and septic shock admitted in pediatric intensive care unit – a prospective observational study and an institutional experience for a tertiary care children's hospital in the private sector International Journal of Scientific Research April 2019:8 (04)1-4
18. Pushpendra N Renjen, Dinesh Chaudhari, Abhas Kumar, Anjali Mishra Intracranial Histoplasmosis – a review of literature International Journal of Scientific Research April 2019:8 (04)64-65
19. Abhas Kumar, Pushpendra N Renjen, Dinesh Chaudhari Melekersson Rosenathal Syndrome - A Clinical Review International Journal of Scientific Research March 2019:8 (03)17-18
20. Dinesh Chaudhari, Pushpendra N Renjen Thrombolysis in elderly patients Indian Journal of Geriatric Care IJGC September-December 2018;7:(3) 69-70. 
21. Pushpendra N Renjen, Dementia in elderly population Indian Journal of Geriatric Care IJGC September-December 2018;7:(3) 52-54. 
22. Pushpendra N Renjen, Editorial Apollo Med October- December 2018;15:182
23. Dinesh Chaudhari, Pushpendra N Renjen, Kamal Ahmad Metronidazole induced encephalopathy Apollo Med October- December 2018;15:190-92
24. Shivangi Garg, Pushpendra N Renjen, Dinesh Chaudhari Stroke in Young – International Journal of Scientific Research December 2018:7 (12)32-33
25. Pushpendra N Renjen, Dr. Dinesh Chaudhari, Abhas Kumar. Litchi Toxicity: The Mystery Disease – International Journal of Scientific Research December 2018:7 (12)34-35
26. Abhas Kumar, Pushpendra N Renjen, Kamal Ahmad, Dinesh Chaudhari Unusual Clinical Scenario: Spindle Cell Tumor Presenting as Cardio-Embolic Stroke - Indian Journal of Applied Research December 2018:8(12)33-34
27. Dinesh Chaudhari, Pushpendra N Renjen, Shivangi Garg A Review Of Intracranial Hypertension - Indian Journal of Applied Research December 2018:8(12)35-37
28. Renjen PN, Chaudhari DM, Shilpi US, Zutshi D, Ahmad K. Paraneoplastic cerebellar degeneration associated with ovarian adenocarcinoma: A case report and review of literature. Ann Indian Acad Neurol 2018;21:311-4.
29. Renjen PN, Chaudhari D. Unusual case of subacute cerebellar ataxia. Neurol India 2018;66:1482-3
30. Chaudhari D.  Pushpendra N Renjen, Atrial Myxoma – A rare cause of stroke (case Series) International Journal of Scientific Research June 2018; 7 (6):309-31
31. Pushpendra N Renjen, Dinesh Chaudhari, The mysterious case of bilateral sensory neural hearing loss (superficial siderosis) Neurology India 2018; 66 (3): 839-840
32. Renjen PN, Chaudhari D.   Inflammatory Bowel disease and stroke International Journal of Scientific Research February 2018; 7 (2):26-2
33. Renjen PN, Sillat S,Chaudhari D, Ahmed K.   Posterior reversible encephalopathy syndrome (PRES) International Journal of Scientific Research January 2018; 7 (1):43-47
34. Pushpendra N Renjen, Dinesh Chaudhari, Gaurav Sagar, Sanjiv Jasuja, Neurology of Renal disorders Neurology India 2018; 66 (1): 163-167.
35. D Chaudhari, PN Renjen, NK Gupta Evaluation of serum homocysteine level In large vessel and small vessel subtypes of acute Ischemic stroke patients admitted In a tertiary care hospital CEREBROVASCULAR DISEASES 45, 427-427 (Abstract)
36. D Chaudhari, PN Renjen, NK Gupta, K Ahmad A rare cause of stroke - Atrial Mvxoma CEREBROVASCULAR DISEASES 45, 365-365 (Abstract)
37. Chaudhari D, Renjen PN,Zutshi D, Ahmad K, An Intriguing case of Rapidly progressive dementia: Creutzfeltd –Jakob  Apollo Medicine 2017; 14:234-7. 
38. Renjen PN, Chaudhari DM.   Neurological Benefits of Mindfulness medicine Apollo Medicine 2017; 14:198-20.  
39. Renjen PN, Chaudhari D.   Progressive multifocal leucoencephalopathy (PMLE) International Journal of Scientific Research December 2017; 6 (12):303-30
40. Renjen PN, Chaudhari D.   A review of autoimmune encephalitis. International Journal of Scientific Research December 2017; 6 (12):286-288
41. Chaudhari D. Renjen PN.  White matter changes in patients with diabetes mellitus International Journal of Scientific Research December 2017; 6 (12):42-43
42. Renjen PN, Chaudhari D. Acquired (Non-Wilsonian) Hepatocerebral degeneration. International Journal of Scientific Research November 2017; 6 (11):63-64
43. Renjen PN, Chaudhari D. Stroke Chameleons: Uncommon Presentations of a Common Disease. Apollo Medicine 2017; 14:148-9.
44. Chaudhari DM, Renjen PN, Sardana R, Butta H. Nocardia Farcinica brain abscess in an immunocompetent old patient: A case report and review of literature. Ann Indian Acad Neurol 2017; 20:399-402
45. Renjen PN, BEG MA, Chaudhari D, Singla R. Role of plasma N-terminal proB-type natriuretic peptide (NT-proBNP) level in differentiating cardioembolic stroke from other stroke subtypes International Journal of Scientific Research October 2017; 6 (10):206-209
46. Renjen PN, Stroke Basics Medicine Update September 2017; 25 (5):15-20
47. Renjen PN. Editorial – Stroke Epidemiology and burden. Medicine Update August 2017; 25 (4):7
48. Renjen PN, BEG MA, Chaudhari D, Lala T.  Evaluation of efficacy and safety of botulinum toxin-A in management of post stroke spasticity International Journal of Scientific Research August 2017; 6 (8):157-159
49. Renjen PN, Chaudhari D, Meman M. An unusual combination of patent foramen ovale with pulmonary arteriovenous malformation in a young patient with stroke. Neurol India 2017; 65:891-2.
50. PN Renjen Paradigm shift in stroke prevention: Need of the hour Annals of Indian Academy of Neurology 2017; 20 (2), 158,
51. PN Renjen, D Chaudhari, Re-initiation of oral-anticoagulants in survivors of hemorrhagic stroke.  Apollo Medicine 2017; 14, 100-104
52. PN Renjen, D Chaudhari, V Namala. Central pontine and extrapontine myelinolysis. Apollo Medicine 2016; 13 (4), 220-223
53. Jena A, Taneja S, Gambhir A, Renjen PN. Integrated PET/MRI imaging of semantic dementia Neurol India 2016; 64(4):826-7. doi: 10.4103/0028-3886.185365.
54. Renjen PN, Chaudhari D. Telemedicine and stroke: Stroke Emergency Mobile Unit — A new approach to stroke care Neurol India 2016; 64:110-2.
55. Mahir Memon, Pushpendra Nath Renjen, Dinesh M. Chaudhari. A lesion to learn: Stroke mimics.  Apollo Medicine 2016; 13 (1), 42–4.
56. Pushpendra Nath Renjen, Dinesh M. Chaudhari, Mahir Memon. Hormone use and stroke. Apollo Medicine 2016; 13 (1), 2–5.
57. Dinesh M. Chaudhari, Pushpendra Nath Renjen, Mahir Memon. Statins and stroke. Apollo Medicine 2016; 13 (1), 6–9.
58. Jena A, Renjen PN, Taneja S, Gambhir A, Negi P. Integrated 18F-fluorodeoxyglucose positron emission tomography magnetic resonance imaging (18F-FDG PET/MRI), a multimodality approach for comprehensive evaluation of dementia patients: A pictorial essay Indian J Radiol Imaging 2015;25:342-52 (DOI: 10.4103/0971-3026.169449 Published November 2015)
59. Renjen P, Gauba C, Chaudhari D Cognitive Impairment after Stroke (September 29, 2015) Cureus 7(9): e335. DOI 10.7759/cureus.335
60. Dinesh Chaudhari, Pushpendra Nath Renjen. Fahr's disease: A rare neurological disease  Apollo Medicine 2015; 12 (2):8–151
61. PN Renjen, D Chaudhari, S Kansal, M Meman. - Stroke-sleep disorder breathing Apollo Medicine 2015;12 (1):18-21
62. Chaudhari and Renjen. Stiff Person Syndrome with Good Treatment Response to Intrathecal Baclofen J Clin Case Rep 2015, 5:8 (http://dx.doi.org/10.4172/2165-7920.1000573 (Published August 17, 2015)
63. PN Renjen, MA Beg, K Ahmad. Epidemiological study of incidence and risk factors of Ischemic stroke subtypes according to Trial of ORG 10172 in acute stroke treatment criteria: A 3 years, hospital-based study  International Journal of Medicine and Public Health 2015;5 (1):50-54 
64. Pushpendra Nath Renjen, Laxmi Khanna, Kamal Ahmed. Reversible Cardiomyopathy in Guillain Barre Syndrome, JAPI 2014; 62:734-736
65. Amarnath Jenaa, Sangeeta Tanejaa, Reema Goel, Pushpendranath Renjen, Pradeep Negi. Reliability of semiquantitative¹⁸F-FDG PET parameters derived from Simultaneous Brain PET/MRI: A feasibility study. European Journal of Radiology 2014; 83:1269–1274.
66. Pushpendra Nath Renjen. Stroke in young. Apollo Medicine, 2013;10 (4): 265-269
67. Khan NI, Renjen PN et al. An unusual recurrence of dysembroplastic neuroepithelial tumors after a seizure free period of 8 years.  BMJ Case Reports 2013; doi:10.1136/bcr-2013-010469 (05^th of Sept. 2013)
68. Pushpendra Renjen, Laxmi Khanna, Cecilia Fernandes, Nadeem Khan. Stroke as the first manifestation of Takayasu's arteritis. Apollo Medicine, 2013;10 (3):251-253
69. Pushpendra Renjen, Rajender Singla. Role of plasma N-terminal proB-type natriuretic peptide (NT-proBNP) level in acute cardioembolic stroke. Apollo Medicine 2013; 10, (3):217-219.
70. PN Renjen, L Khanna, R Rastogi, NI Khan Acquired hepatocerebral degeneration” BMJ Case Reports   published online 18 June 2013, doi:10.1136/bcr-2013-009387
71. Renjen PN et al. Intravascular large B-cell lymphoma confirmed by brain biopsy: a case report. BMJ Case Reports, doi:10.1136/bcr-2012-007990 (published online 18 February 2013)
72. P.N. Renjen, R. Mehta Management of adult spasticity: post-stroke.  Journal of the Neurological Sciences   2009; 285 (S1) S58) DOI10.1016/S0022-510X(09)70266-7
73. Renjen PN. Secondary Prevention of ischemic stroke and TIA. Apollo Medicine, 2008; 5(2) 97-100.
74. Jain Gaurav, Renjen P. N. Diagnostic Challenges in cerebrospinal fluid analysis JIMSA  2008; 21 (1):35-38
75. Gauba Charu, Renjen PN. Electro-encephalography in Neurology. JIMSA  2008; 21 (1): 27-30
76. Ahmed Kamal, Renjen PN, Gauba Charu, Jain Gaurav. How to investigate intracerebral haemorrhage? Do we know, whom, why & when to investigate? JIMSA  2008; 21 (1):25-26
77. Renjen PN. Trans cranial Doppler monitoring. JIMSA  2008; 21 (1): 21-23
78. Neha Goyal, P. N. Renjen. Hypercoagulable State: Diagnostic Challenges.  JIMSA  2008; 21 (1): 13-15
79. Renjen PN. Potential role of MR Angiography in selecting patients for thrombolytic therapy.  JIMSA  2008; 21 (1): 11-12
80. Mani RK, Singh S, Chawla R, Kansal S, Prasad R, Renjen PN, Hukoo S, Lohia P. Neurogenic pulmonary edema due to delayed radiation necrosis. Indian Journal of Critical care medicine 2005; 9:28-31
81. Renjen P.N, Kamal Ahmed. Sucrose Nephropathy acute renal failure caused by intravenous immunoglobulin therapy; JAPI 2004; 52: 840-841. 
82. Renjen P.N. Acute Stroke – Current management strategies Apollo Medical Journal 2004; 11: 47-52. 
83. Renjen P.N. New information about managing temperature, blood pressure & Glucose in Acute ischemic stroke JIMSA 2004; 17 (2):98-98. 
84. Renjen P.N. Use of Sodium Valporate in Epilepsy Neurosciences Today 2003; 7: 43-46. 
85. Renjen P.N. Cerebral cladosporium Batlanum Granuloma Mimicking Tuberculoma Neurosciences Today 2003; 7:58-60
86. Jha A N Vatsal D K, Sharma S, Renjen P N, Kaul S. Primary Fibrosarcoma of Brain Neurology India, 2000; 48:396-398.
87. Renjen P.N. Stroke & AIDS Progress in Clinical Neurosciences, 1999; 14.
88. Renjen P.N. Emergency Management of Ischemic Stroke; JIMSA 1999; 12:116-120.
89. Renjen P.N. Intra Cerebral haemorrhage; Current Medical Trends 1998; 2:438-443.
90. Rai Sandeep, Renjen P.N. Neurocysticercosis: Treatment with praziquantal and steroids. Journal of International Medical Sciences Academy 1998; 7:24-28. 
91. Renjen P.N Need for newer anti-epileptic drugs?  Medical Plus 1998; 15:40-42. 
92. Renjen P.N. Lacunar Stroke Progress in Clinical Neurosciences 1997; 12:159-174.
93. Renjen P. N. Shunt obstruction and CSF edema Journal of Neurosurgery, 1995; 83 (6): 1112,
94. Prasad A., Renjen P.N. Solitary spinal osteochondroma causing neural syndrome.  Paraplegia, 1992; 30:678-680.
95. Prasad, Madan V.S., Buxi, T.B.S., Renjen P.N. The role of the perforated segment of the ventricular catheter in cerebro spinal fluid- leakage in the brain; British Journal of Neurosurgery 1990; 5:299-302.
96. Shankar S. K., Renjen P.N., Devi Gourie M, Deshpande D.H. Vascular Neuropathies-A Pathological study of 14 cases. Neurology India 1983; 31:41-50.
97. B. Vasundhara Devi, Renjen P.N., Vidyasagar C. Inter hemispheric arachnoidal cyst Indian Journal of Radiology, 1982; 36:183-183.

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