rauchen gefährden das Leben ihres Kindes
Eine australische Studie belegt abermals, dass Kinder die vor
der Geburt mit Tabakrauch in Kontakt kommen, stärker gefährdet
sind einen plötzlichen Kindstod zu erleiden als Kinder von Nichtraucherinnen.
Bis zu 30% dieser plötzlichen Todesfälle werden auf den Tabakkontakt
im Mutterleib zurückgeführt.
Evidence Linking Sudden Infant Death Syndrome And
Archives of Disease in Childhood
Further evidence of an increased risk of sudden infant
death syndrome (SIDS) among children of smokers suggests
the risk may be due to a slower arousal response as
a result of in utero tobacco exposure.
Dr Anne Chang and colleagues at the Department
of Respiratory Medicine, Royal Children's Hospital,
Herston, Australia, found signs after monitoring the
sleep and arousal patterns of 20 infants between the
ages of 8 and 12 weeks. The age is the peak for SIDS
events among full term infants.
Although many diverse mechanisms have been proposed,
a consistent finding is that exposure to tobacco smoke
in utero significantly predisposes the infant to succumb
to SIDS, the researchers point out.
The researchers monitored 10 infants born to mothers
who smoked during pregnancy, and 10 born to mothers
who did not smoke. All of the infants were born at
term, and none was sick or had been receiving any
treatment. Assessment also was made of feeding practices,
the smoking habits of both parents, income and employment,
and levels of postnatal depression, all factors known
to affect the risk of SIDS.
A standardized sequence of audiology stimuli was applied
binaurally during a rapid eye movement (REM) and NREM
epoch, in a controlled sleep environment--temperature,
position, use of a pacifier or noise. Infants were
monitored for 10 to 12 hours using complex sleep polysomnography.
Five infants exposed to in utero tobacco smoke did
not have behavioural arousal response, whereas all
non-smoke exposed infants aroused during NREM. However,
the clinicians found no difference in REM sleep, and
the groups did not differ in routine overnight complex
sleep polysomnography parameters.
Dr Chang and colleagues conclude that previous research
has indicated that cigarette smoking by the mother
could be implicated in up to 30 percent of SIDS cases.
"This study adds to the body of evidence that
in utero smoke exposure is detrimental to the infant's
neurorespiratory system, which governs arousal."
Archives Of Disease In Childhood 2003; 88: 30-33.