{"id":"https://openalex.org/A5078413347","orcid":null,"observed_orcids":[],"display_name":"Arunkumar Karthikayan","raw_author_names":["A.K. Karthikayan","Arunkumar Karthikayan"],"full_name":"Arunkumar Karthikayan","works_count":16,"cited_by_count":53,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":3,"i10_index":1},"ids":{"openalex":"https://openalex.org/A5078413347","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1327930874","ror":"https://ror.org/02ew45630","display_name":"Apollo Hospitals","country_code":"IN","type":"healthcare","lineage":["https://openalex.org/I1327930874"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I2800373951","ror":"https://ror.org/05757k612","display_name":"Sree Chitra Thirunal Institute for Medical Sciences and Technology","country_code":"IN","type":"facility","lineage":["https://openalex.org/I2800373951"]},"years":[2022,2020,2019]},{"institution":{"id":"https://openalex.org/I4210154769","ror":"https://ror.org/04sve9e90","display_name":"Apollo Proton Cancer Centre","country_code":"IN","type":"healthcare","lineage":["https://openalex.org/I4210154769"]},"years":[2022,2021]},{"institution":{"id":"https://openalex.org/I61923386","ror":"https://ror.org/02fq2px14","display_name":"Jawaharlal Institute of Post Graduate Medical Education and Research","country_code":"IN","type":"education","lineage":["https://openalex.org/I61923386"]},"years":[2018]}],"last_known_institutions":[{"id":"https://openalex.org/I1327930874","ror":"https://ror.org/02ew45630","display_name":"Apollo Hospitals","country_code":"IN","type":"healthcare","lineage":["https://openalex.org/I1327930874"]},{"id":"https://openalex.org/I2800373951","ror":"https://ror.org/05757k612","display_name":"Sree Chitra Thirunal Institute for Medical Sciences and Technology","country_code":"IN","type":"facility","lineage":["https://openalex.org/I2800373951"]},{"id":"https://openalex.org/I4210154769","ror":"https://ror.org/04sve9e90","display_name":"Apollo Proton Cancer Centre","country_code":"IN","type":"healthcare","lineage":["https://openalex.org/I4210154769"]}],"topics":[{"id":"https://openalex.org/T11251","display_name":"Meningioma and schwannoma management","count":6,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10420","display_name":"Intracranial Aneurysms: Treatment and Complications","count":3,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10852","display_name":"Temporomandibular Joint Disorders","count":3,"subfield":{"id":"https://openalex.org/subfields/3504","display_name":"Oral Surgery"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11402","display_name":"Vascular Malformations Diagnosis and Treatment","count":3,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12193","display_name":"Trigeminal Neuralgia and Treatments","count":3,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12193","display_name":"Trigeminal Neuralgia and Treatments","value":9.62e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12747","display_name":"Moyamoya disease diagnosis and treatment","value":4.57e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11251","display_name":"Meningioma and schwannoma management","value":4.3e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13323","display_name":"Spinal Hematomas and Complications","value":2.72e-05,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11402","display_name":"Vascular Malformations Diagnosis and Treatment","value":2.48e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Clinical Neurology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9910826086997986},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.5779469609260559},{"id":"126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","score":0.46424540877342224},{"id":"105702510","wikidata":"https://www.wikidata.org/wiki/Q514","display_name":"Anatomy","score":0.3701493740081787},{"id":"118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","score":0.0}],"counts_by_year":[{"year":2018,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2019,"works_count":2,"oa_works_count":1,"cited_by_count":2},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":8},{"year":2021,"works_count":7,"oa_works_count":5,"cited_by_count":6},{"year":2022,"works_count":4,"oa_works_count":2,"cited_by_count":6},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":5}],"display_name_alternatives":["A.K. Karthikayan","Arunkumar Karthikayan"],"block_key":"a karthikayan","works_api_url":"https://api.openalex.org/works?filter=author.id:A5078413347","updated_date":"2026-11-07T12:08:38","created_date":"2018-12-11T00:00:00"}