title: Twenty-year trends in neonatal surgery based on a nationwide Japanese surveillance program.
abstract: OBJECTIVE
  To discuss the chronological changes observed in a national survey of neonatal surgery in Japan performed every 5 years by the Committee in the Japanese Society of Pediatric Surgeons.
  
  
  METHODS
  We analyzed the data obtained for 20 years from 1993 to 2013 and herein report the chronological changes.
  
  
  RESULTS
  The number of summarized cases was least in 1993, with 2806 cases, and subsequently increased to 3753 cases in 2013. The mortality rate among the patients with maternal transport linearly decreased (p = 0.0386). Although the proportion of extremely low birth weight infants linearly increased (p = 0.0014), with an annual rate of +0.39 %, the mortality rate linearly decreased (p = 0.0010), with an annual rate of -1.68 %. Moreover, the overall mortality rate linearly decreased (p = 0.0002), with an annual rate of -0.26 %. Most diseases were observed to exhibit a decline in the mortality rate with the same trend as overall mortality. The decline in the mortality rate was most robust with respect to congenital diaphragmatic hernia (CDH). The mortality rates, except for that of CDH, omphalocele, esophageal atresia, and intestinal perforation, declined to 5 % or lower by 2013.
  
  
  CONCLUSIONS
  The present findings may be the result of remarkable progress in perinatal management.
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan. yagimi@med.kurume-u.ac.jp.|Department of Pediatric Surgery, Kurume University School of Medicine, 67 Asahimachi, Kururme-City, Fukuoka, 830-0011, Japan. yagimi@med.kurume-u.ac.jp.
authors: M
authors: M
authors: Yagi
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: M
authors: M
authors: Kohno
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: K
authors: K
authors: Asagiri
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: T
authors: T
authors: Ikeda
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: T
authors: T
authors: Okada
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: S
authors: S
authors: Kanada
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: S
authors: S
authors: Kawashima
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: Y
authors: Y
authors: Goto
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: S
authors: S
authors: Takano
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: M
authors: M
authors: Yasufuku
authors: Committee of Academic Survey and Advanced Medical Science, Japanese Society of Pediatric Surgeons, Tokyo, Japan.
authors: M
authors: M
authors: Wada
mesh_terms: D000013:Congenital Abnormalities / Q000601:surgery*; D005260:Female; D019538:Health Care Surveys / Q000706:statistics & numerical data*; D006801:Humans; D007231:Infant, Newborn; D007564:Japan; D008297:Male; D013514:Surgical Procedures, Operative / Q000706:statistics & numerical data*
keywords: Japanese society of pediatric surgeons; Nationwide surveillance; Neonatal surgery