Document Detail

The problematic symmetry between brain birth and brain death.
MedLine Citation:
PMID:  9752625     Owner:  NLM     Status:  MEDLINE    
The possible symmetry between the concepts of brain death and brain birth (life) is explored. Since the symmetry argument has tended to overlook the most appropriate definition of brain death, the fundamental concepts of whole brain death and higher brain death are assessed. In this way, a context is provided for a discussion of brain birth. Different writers have placed brain birth at numerous points: 25-40 days, eight weeks, 22-24 weeks, and 32-36 weeks gestation. For others, the concept itself is open to question. Apart from this, it needs to be asked whether a unitary concept is an oversimplification. The merits of defining two stages of brain birth, to parallel the two definitions of brain death, are discussed. An attempt is then made to map these various stages of brain birth and brain death onto a developmental continuum. Although the results hold biological interest, their ethical significance is less evident. Development and degeneration are not interchangeable, and definitions of death apply specifically to those who are dying, not those who are developing. I conclude that while a dual concept of brain death has proved helpful, a dual concept of brain birth still has problems, and the underlying concept of brain birth itself continues to be elusive.
D G Jones
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of medical ethics     Volume:  24     ISSN:  0306-6800     ISO Abbreviation:  J Med Ethics     Publication Date:  1998 Aug 
Date Detail:
Created Date:  1998-12-04     Completed Date:  1998-12-04     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7513619     Medline TA:  J Med Ethics     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  237-42     Citation Subset:  E; IM    
University of Otago, Dunedin, New Zealand.
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MeSH Terms
Beginning of Human Life*
Brain / growth & development*
Brain Death / diagnosis*,  physiopathology*
Ethics, Medical*
Gestational Age
Labor, Obstetric / physiology*

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