Post-Newborn: A New Concept of Period in Early Life

Post-newborn infants refer to infants from >28 days to 

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Post-Newborn: A New Concept of Period in Early Life Long Chen, Jie Li, Nan Wang and Yuan Shi

Abstract Post-newborn infants refer to infants fromnbsp;[28 days to \100 days after birth. During this period, infants are still completely dependent on breast milk or/and formula milk for feeding. Up to now, the concept of post-newborn has not been mentioned in classic textbooks. With the development of perinatal medicine, mortality rate of diseases in neonates such as premature infants, asphyxia, infectious diseases have decreased significantly, and consequently, issues of the quality of life for these survivors have aroused widespread concerns. The post-newborn infants have some important characteristics differing from both newborn infants and infants after the period: (1) different fatal diseases and mortality rate; (2) the diseases inherited from newborn period requiring early and prompt treatments; (3) some peculiar diseases during this period requiring much attention; (4) either similar or different immune function; (5) rapid growth and uneven development of organ systems. Establishment of the new concept of post-newborn will further reveal the nature of life, reduce the mortality rate of infants, and improve the quality of life. Keywords Infant

 Newborn  Post-newborn

L. Chen and J. Li (Equal contributions to the study). L. Chen  N. Wang  Y. Shi (&) Department of Pediatrics, Daping Hospital, Third Military Medical University, Chongqing 400042, China e-mail: [email protected] L. Chen e-mail: [email protected] J. Li Department of Obstetrics, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400014, China e-mail: [email protected]

S. Li et al. (eds.), Frontier and Future Development of Information Technology 1343 in Medicine and Education, Lecture Notes in Electrical Engineering 269, DOI: 10.1007/978-94-007-7618-0_143,  Springer Science+Business Media Dordrecht 2014

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L. Chen et al.

143.1 The Establishment of the Neonatal Intensive Care Unit (NICU) Could Greatly Reduce the Mortality Rate of Newborn Infant, but not Improve the Quality of Life Synchronously In the early 1960s, the world’s first NICU was established at New Haven Hospital of Yale University, which became a milestone in the developmental history of modern neonatal medicine. After that, NICU has been established in the world in succession and developed rapidly, and thus, neonatal medicine has entered a booming era. With the establishment of transfer and treatment network for the critically ill neonatal infant in the developed areas, the constant in-depth development of the relevant basic and clinical research, improvement of the treatment techniques, and especially the use of pulmonary surfactant, the mortality rate for the seriously ill newborn infants such as low birth weight newborns, extreme low birth weight newborns, severe respiratory distress syndrome have been decreased significantly. The mortality rate of the newborn in United States in 2006 has been dropped by nearly half as compared with that in 1980 (from 8