Prenatal substance abuse.

It has been reported that ISAM have an increased risk of SIDS and abnormalities of cardiorespiratory physiology. Abnormalities of cardiorespiratory control may account for the increased SIDS risk in some ISAM, and home monitoring is often used for ISAM with clinical apneic episodes. However, it is possible that the increased SIDS risk factors concentrated in this population. The increased SIDS risk SIDS risk factors concentrated in this population. The increased SIDS risk demonstrated in ISAM does not necessarily indicate that drug exposure during gestation in itself causes SIDS. Thus home monitoring is not indicated for ISAM who do not have apnea or other clinical evidence of a respiratory control abnormality.