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• Medical Specialist in Neurosurgery. Universidad de Costa Rica. 1984 - 1988
• Baccalaureate and Bachelor of General Medicine. Universidad de Costa Rica. 1977 - 1982

• Physicians and Surgeons College of Costa Rica cod. MED2699Active

  Medic and Surgeon - Costa Rica

• 2009 IV Research Contest Dr. José Joaquín Jiménez Núñez. First place as co-author in Epidemiological Scientific Research. College of Dental Surgeons of Costa Rica.
• 2001 I International Congress of Neurosciences. First Place for Free Work: Epilepsy Surgery in Costa Rica. Unit of Monitoring and Surgery of Epilepsy H.N.N. Costa Rican Association of Neurological Sciences, San José, Costa Rica.
• 1996 VIII Central American Congress of Neurology, I Central American Congress of Clinical Neurophysiology. First Place for Free Works: Hemisferectomies and callosotomies in refractory epilepsy in Costa Rica. Central American Federation of Neurology, San José, Costa Rica.

• Head of Service, Neurosurgery Service, Children's National Hospital "Dr. Carlos Sáenz Herrera ".

• Jiménez E, Segura JL, Cáceres A, et al: Primary Leptomeningeal Melanoma: A case Report and Review of Literature. BAOJ Neuro, 2017; 3:2
• Segura Masís JL, Masís R, Alfaro K, Rodríguez S, Segura Valverde JL: Comparative study of pre and post-operative drug costs in patients with refractory epilepsy undergoing hemispherectomy and temporal lobectomy at the National Children´s Hospital Dr. Carlos Sáenz Herrera. J Neurol Res Rev Rep, 2020; 2(2): 1-3
• Segura Masís JL, Jiménez E, Núñez M, Segura Valverde JL: Malignant Peripheral Nerve Sheath Tumor: A Case Report in a 8-Year Old Patient. Open Access J Neurol Neurosurg 13(5): OAJNN.MS.ID.555875 (2020)
• 2019Conferencia: “Malformations of the central nervous system in children requiring neurosurgery correction”. Department of Nervous Diseases and Neurosurgery, People’s Friendship University of Russia (RUDN), Moscú, Rusia
• 201981° Congreso Médico Nacional. Conferencista. Colegio de Médicos y Cirujanos de Costa Rica. La Fortuna de San Carlos, Costa Rica.
• 201880° Congreso Médico Nacional. Conferencista. Colegio de Médicos y Cirujanos de Costa Rica. San José, Costa Rica.
• 2018III Simposio Craneofacial: Oncología Craneofacial. Conferencista: “Tumores del encéfalo”. Facultad de Odontología, Universidad de Costa Rica. San José, Costa Rica.
• 201779° Congreso Médico Nacional. Conferencista: “Trauma de cráneo en el paciente pediátrico”. Colegio de Médicos y Cirujanos de Costa Rica. Puntarenas, Costa Rica.
• Segura Valverde JL, Zamora J, Jiménez E, Trejos H, Segura Masís JL, Peña Isabela: A Successful Separation of Total Vertical Craneopagus Conjoined Twins in Costa Rica. Open Access J Neurol Neurosurg 14(3): OAJNN.MS.ID.555887 (2020)