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Essay on The Continuing Mystery of SIDS

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The Continuing Mystery of SIDS

Sudden infant death syndrome ( SIDS) is the greatest cause of infant deaths ranging from ages one month to one year. Most of these deaths occur before the age of six months. Normally, any unexplainable infant death is considered to be due to SIDS. Numerous attempts have been made to discover the exact cause of this syndrome. However,the only known pathology is that SIDS is due to a dysfunction or abnormality in the cardiac and/or respiratory systems. To this point, an exact and definite cause has not been named. This paper will attempt to present several of the proposed and hypothesized causes of SIDS.

First of all, it is necessary to understand some of the important features of this syndrome (Naeye, …show more content…

Possible post-mortem characteristics of SIDS victims have been found to be normal in comparison with post-mortem non-SIDS infants of the same age. Furthermore, no abnormalities in the growth and morphology of the lungs and hearts of SIDS infants have been found. Therefore, in more recent years, research has shifted from the actual death and autopsy findings to chronic abnormalities found within these infants prior to death.

The list of proposed chronic abnormalities is lengthy. To this date, research has confirmed the following: 1) SIDS is due to a dysfunction of the cardiac and/or respiratory systems, and 2) the death of the infant is due to hypo-ventilation of the lungs and periods of complete cessation of breathing or apnea. Hypo-ventilation and apnea cause hypo-perfusion of the tissues with necessary oxygen. Ischemia of tissues results and eventually causes death. Research now centers around discovering the cause of infant hypo-ventilation and apnea.

Hypothesized causes of SIDS generally have fallen into three basic categories:
1) causes related to the respiratory system; 2) causes related to the cardiac and circulatory system; and 3) causes related to levels of various circulating substances (enzymes, neurotransmitters, viruses) within the body"

First of all, most SIDS research has been focused upon the neuronal control of the respiratory system. As mentioned previously, the post-mortem lungs of SIDS victims showed no evidence of

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