| Abstract: |
The appropriate approach to anaesthetizing the neonatepatient (infant during the first 28 days of life) Lnvo Lv e sunderstanding the varying anatomic, physiologic, potholog.icand pharmacologic considerations for the neonate infant.As regard to the anatomical features of the neonate, thelarynx is situated at a higher level opposite G)-4 ’ the cricoidring is the narrowest part of the larynx &~d the trachea isabout 4 em long and 4 mm diameter. The spinal cord ends at thelower border of L) at birth and the dura ends at the I evel ofThe neonatal respiratory system is characterized by increa-sed alveolar ventilation, as the neonate has increased oxygendemond8 Because of the immaturity of pulmonary structure andfunctions. The neonate has less sblity to compensate effectivelywhen stressed.As for the cardiovascular system, the neonate is in 8 s t at e ”of tr~~sition from fetal circulation to extrauterine circulation.Neonatal myocardium is less complient than that of the adult.
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