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73 - The nervous system

from Section 11 - Diseases of body systems

Published online by Cambridge University Press:  05 March 2013

By
Peter Newman ,
Peter Cleland  and
Richard W. Walker
Edited by
David Mabey ,
Geoffrey Gill ,
Eldryd Parry ,
Martin W. Weber  and
Christopher J. M. Whitty
David Mabey
Affiliation:
London School of Hygiene and Tropical Medicine
Geoffrey Gill
Affiliation:
University of Liverpool
Eldryd Parry
Affiliation:
Tropical Health Education Trust
Martin W. Weber
Affiliation:
World Health Organization, Jakarta
Christopher J. M. Whitty
Affiliation:
London School of Hygiene and Tropical Medicine
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Summary

The problem in Africa

In Africa the spectrum of neurological disease is in many ways similar to other parts of the world, but significant differences are obvious. Relative to industrialized countries, stroke and epilepsy are very common, but dementia or Parkinson's disease are much less so, at least at present. Which of the particular geographical, climatic, social and ethnic factors of the continent govern the pattern of disease? Why is multiple sclerosis almost unknown in tropical Africa, whereas defined local factors account for tropical ataxic neuropathy? While the epidemic of HIV infection is bringing its own range of neurological complications, there are few local data about Parkinson's disease, or even stroke. A comment made about tropical neurology by Spillane in 1973, is still true of Africa, ‘ . . . the repeated assertion that many diseases of the nervous system are uncommon or actually rare in certain tropical zones is a premature generalization . . . We are nowhere near a position to make any broad and confident generalization about the distribution of diseases of the nervous system in the tropics’.

Epidemiological work in Africa is demanding, but some careful studies have provided valuable data, as the early example from Ethiopia demonstrates (Table 73.1). Researchers are actively building a more comprehensive picture, but the lack of neurological resource is a constant obstruction to development, and to basic assessment and treatment of neurological problems (WHO, 2004).

Type
Chapter
Information
Principles of Medicine in Africa , pp. 746 - 778
Publisher: Cambridge University Press
Print publication year: 2013

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