African Contribution to the World Neurosurgical Literature During the Past Two Decades (1999-2018) Using PubMed Database

Abstract

Background: To the best of our knowledge, no previous study has assessed the neurosurgical publications from Africa. A bibliometric analysis was performed in the present study to evaluate the contribution of African authors in neurosurgical journals worldwide and to discuss the approaches that could be used to enhance the quantity and quality of publications on this issue.

Methods: A literature search of neurosurgical publications by African investigators was performed using the PubMed database from 1999 to 2018. The total number of articles per country was tabulated and normalized by the number of neurosurgeons in each country.

Results: A total of 974 articles reported from 1999 to 2018 from 31 African countries were identified and analyzed. The number of African neurosurgical publications have increased remarkably during the past decade. However, a wide disparity exists in the productivity among the countries, especially when normalized by the number of neurosurgeons. Most of the research publications have been case series and case reports, with very few clinical trials, meta-analyses, or international collaborations. According to the neurosurgical research areas, the most representative subspecialties were the spine, intracranial tumor, hydrocephalus, and head injury.

Conclusions: African neurosurgeons will be able to meet the challenges of the new century with the appropriate use of its resources and staff, regardless of the difficulties they face. However, African neurosurgical research could be improved by teaching research methods and medical writing and should focus more on modern neurosurgical topics by highlighting continental particularities. African neurosurgeons should collaborate with each other (locally, regionally, and abroad) and with foreign centers for better quality research and international visibility.

Keywords: Africa; Bibliometrics; Medical publication; Neurosurgery; PubMed; Research; Scientific productivity.