• Xiaoge Zhang, Ling Feng, Liang Du, Anxiang Zhang, and Tian Tang.
• State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, Sichuan Province, China.
• Neural Regen Res. 2012 Jan 15;7(2):152-9.

BackgroundFacial paralysis is defined as severe or complete loss of facial muscle motor function.ObjectiveThe study was undertaken to explore a bibliometric approach to quantitatively assess the research on clinical treatment of facial paralysis using rehabilitation, physiotherapy and acupuncture using Web of Science from 1992 to 2011.DesignBibliometric approach.Data RetrievalA bibliometric analysis based on the publications on Web of Science was performed using key words such as "facial paralysis", "rehabilitation", "physiotherapy" and "acupuncture".Inclusive Criteria(1) Research articles on the clinical treatment of facial paralysis using acupuncture or physiotherapy (e.g. exercise, electro-stimulation) and other rehabilitation methods; (2) researches on human and animal fundamentals, clinical trials and case reports; (3) Article types: article, review, proceedings paper, note, letter, editorial material, discussion, book chapter. (4) Publication year: 1992-2011 inclusive.Exclusion Criteria(1) Articles on the causes and diagnosis on facial paralysis; (2) Type of articles: correction; (3) Articles from following databases: all databases related to social science and chemical databases in Web of Science.Main Outcome Measures(1) Overall number of publications; (2) number of publications annually; (3) number of citations received annually; (4) top cited paper; (5) subject categories of publication; (6) the number of countries in which the article is published; (7) distribution of output in journals.ResultsOverall population stands at 3 543 research articles addressing the clinical treatment of facial paralysis in Web of Science during the study period. There is also a markedly increase in the number of publications on the subject "facial paralysis treatments using rehabilitation" during the first decade of the 21(st) century, except in 2004 and 2006 when there are perceptible drops in the number of articles published. The only other year during the study period saw such a drop is 1993. Specifically, there are 192 published articles on facial paralysis treated by rehabilitation in the past two decades, far more than the output of physiotherapy treatment. Physiotherapy treatment scored only 25 articles including acupuncture treatment, with over 80% of these written by Chinese researchers and clinicians. Ranked by regions, USA is by far the most productive country in terms of the number of publications on facial paralysis rehabilitation and physiotherapy research. Seeing from another angle, the journals that focus on otolaryngology published the most number of articles in rehabilitation and physiotherapy studies, whereas most acupuncture studies on facial paralysis were published in the alternative and complementary medicine journals.ConclusionStudy of facial paralysis remains an area of active investigation and innovation. Further clinical studies in humans addressing the use of growth factors or stem cells continue to successful facial nerve regeneration.

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